MIVA STUDY PACK — Mobile Phone Repair Technician (English) Downloaded 2026-09-29. Free to pass on. Mobile Phone Repair Technician — Lesson 1: Inside a Smartphone — Key Components 10 minutes read OBJECTIVE: By the end of this lesson you can identify and explain the function of main internal components of a smartphone. Every day, billions of people use smartphones. From calling family in another town to sending mobile money to a friend, these devices are essential. But what exactly is inside that small, powerful box you hold in your hand? Learning the basic parts of a smartphone is your first step to becoming a great mobile repair technician. Think of it like learning the parts of a generator before you fix it; you need to know what’s what. THE HEART OF THE PHONE: MAIN COMPONENTS Let’s break down the core parts of a smartphone. Knowing where each part sits inside the phone is the foundation of repair work. Imagine a phone that falls from a bike and stops charging. If you know the charging port's location and role, you're already halfway to a fix! - Screen (Display and Touch Sensor): This is what you see and touch. It’s a delicate sandwich of glass and tech that shows images and registers your taps and swipes. Think of it like the dashboard of a car; it shows you everything. - Battery (Power Source): This is the phone’s fuel tank. It stores the power that keeps your phone running all day. Batteries degrade over time, especially with frequent charging and discharging. - Motherboard (Main Circuit Board): This is the phone’s brain and nervous system. It’s a green board connecting everything else together. All commands pass through here. It's like the main office in a busy market stall, managing all the different sections. - Charging Port: This is where you plug in your charger. It’s the entry point for electricity to refill your battery. Dust and lint from pockets often get trapped here. - Camera Module: This allows you to take photos and videos, capturing moments from Accra's busy streets or a special family event. - Speaker and Microphone: The speaker lets you hear calls and music, while the microphone captures your voice when you talk. If you can’t hear your customer or they can’t hear you, these are the parts to check. - Storage Chip: This is where all your apps, photos, videos, and documents are kept. It’s like a digital memory box for your phone. [Why Location Matters] Understanding where each component is physically located within different phone models (e.g., iPhone, Samsung, Tecno) is critical. Some parts are soldered directly onto the motherboard, while others are modular and easily replaceable. A technician in Lagos needs to know which screwdriver to use and where to start prying open a phone without causing more damage. You'll quickly find that most repairs involve just a few key components. If you can master these common fixes, you'll be able to help nearly every customer who walks through your door. Focus on becoming an expert in these areas first, and you’ll build a solid reputation and a profitable business. - Screen Replacement: For those dreaded cracked screens from drops on hard surfaces like concrete or tro-tro steps. - Battery Replacement: For phones that die quickly, can’t hold a charge, or shut down unexpectedly. - Charging Port Repair: When the phone won't charge or only charges intermittently. - Speaker/Earpiece Replacement: If you can't hear calls clearly or music sounds distorted. - Water Damage Recovery: When a phone has been dropped in water, whether it's a puddle on the street or a basin in the kitchen. Mastering these five repair types means you can serve about 90% of your customers. Imagine the trust you build when you can quickly diagnose and fix the most common problems. This is where your repair journey begins, turning broken phones into working lifelines for your community. PRACTICE QUESTIONS 1. What are the two most common phone repairs requested by customers? A) Camera and microphone replacement B) Screen replacement and battery replacement C) Storage upgrade and RAM upgrade D) Software installation and wallpaper change Answer: B — Cracked screens and dead batteries account for the vast majority of repair jobs. Screens crack from drops on concrete floors and tro-tro steps. Batteries degrade after 2-3 years of daily charging, especially in our climate. These two services alone can sustain a profitable repair business in any city from Lome to Accra. 2. Which component is often called the 'brain' or 'nervous system' of the phone because it connects everything else? A) The Screen B) The Battery C) The Motherboard D) The Charging Port Answer: C — The Motherboard is the main circuit board that connects all the different components of the phone and allows them to communicate. It processes information and controls the entire device, just like a central nervous system. ---------------------------------------- Mobile Phone Repair Technician — Lesson 2: Tools You Need to Start 10 minutes read OBJECTIVE: By the end of this lesson you can select and describe the purpose of essential tools for basic phone repair tasks. Starting any new skill needs the right tools. Think of a carpenter without a hammer, or a seamstress without a needle. For you, the mobile phone repair technician, having the correct tools makes all the difference between fixing a phone and causing more damage. Don't worry, you don't need a huge, expensive workshop to begin. We're going to focus on the essential tools that will get you started. YOUR ESSENTIAL REPAIR KIT - Precision Screwdriver Set: Phones use tiny screws. You'll need very small screwdrivers – Phillips, Torx, and flathead types. They look like mini versions of what you use at home. - Plastic Opening Tools & Spudgers: Modern phones often don't have many screws holding them together. They use clips or strong glue. These plastic tools help you gently pry open phone casings without scratching them or breaking delicate parts. - Soldering Iron with Fine Tip: This is like a very hot pen. You'll use it to melt tiny bits of metal (solder) to connect wires, especially for fixing common problems like a broken charging port or a speaker. - Heat Gun or Hair Dryer: This tool blows hot air. It's super useful for warming up phones that are glued shut. The heat softens the adhesive, making it easier to open the phone safely. - Tweezers: Not just for plucking eyebrows! Fine-tip tweezers are your best friends for handling the very tiny screws, cables, and connectors inside a phone. They help you pick up parts that are too small for your fingers. - Multimeter: This is a diagnostic tool, like a doctor's stethoscope. It helps you check if electricity is flowing correctly. You can test battery voltage or find out if there's a 'short' – where electricity is going where it shouldn't. - Magnetic Mat: When you take apart a phone, you'll find many tiny screws. This mat holds them in place with magnetism, so they don't roll away and get lost. Trust us, losing a tiny screw is very frustrating! [Local Tip: Where to Buy Tools] You can find most of these tools at local markets. In Accra, check out Makola Market. In Lagos, Computer Village is your go-to spot. For even lower prices, consider ordering online from places like AliExpress, but remember to factor in shipping time. You don't need the most expensive tools; you need the right ones, and skill will make them work wonders. You might be wondering about the cost. Don't worry, you don't need to break the bank. A good starter set of these essential tools can cost approximately 500-1,500 GHS (Ghana Cedis). This is an investment in your future business. Compare it to buying ingredients for a small food stall or stock for a market table – it's a necessary first step to earn money. Remember, the quality of your work isn't just about the tools, it's about how you use them. Start with basic but reliable tools, learn to handle them well, and you'll be able to fix many common phone problems. As you grow and earn, you can upgrade your kit. For now, focus on mastering these foundational items. They are the keys to unlocking your mobile repair skills. PRACTICE QUESTIONS 1. Which tool would you use to test if a phone battery is still holding a charge? A) Precision Screwdriver B) Soldering Iron C) Multimeter D) Plastic Opening Tool Answer: C — A multimeter is specifically designed to measure electrical values like voltage (to see if a battery has power), current, and resistance. It's your go-to tool for diagnosing electrical problems inside a phone. ---------------------------------------- Mobile Phone Repair Technician — Lesson 3: Opening a Phone Safely 10 minutes read OBJECTIVE: By the end of this lesson you can safely open a smartphone without causing additional damage to its components. Before you can fix a phone, you need to open it up. This sounds simple, but it's a very important step. Doing it right keeps you safe and protects the phone from more damage. Imagine trying to fix a generator without unplugging it first. Dangerous, right? Opening a phone correctly is just like that. It requires care and knowing the right steps. PREPARING THE PHONE Your first step is always to power off the phone completely. Hold down the power button until the screen goes black and the phone is fully off. Don't just let it sleep. Next, remove the SIM card tray. This tray can be hidden in the frame and will prevent the phone from opening cleanly. Sometimes, the memory card also sits in this tray, so remove that too. Make sure the phone is completely empty of any cards before you start working. - Heat it up: Many modern phones use strong glue to hold the screen and frame together. You need to soften this glue. Use a heat gun on a low setting. Move it slowly around the edges of the screen for 2-3 minutes. Don't hold it in one spot too long, or you could damage internal parts. The goal is just warm, not hot. Think of warming up butter, not melting plastic. - Get a grip: Once the glue is warm, carefully insert a thin plastic opening pick into the seam between the screen and the phone's frame. Look for a tiny gap. Start slowly. Once you have a small opening, slide the pick around the perimeter of the phone. This 'cuts' through the softened adhesive. Take your time. Don't rush. - Never use metal: It's tempting to grab a metal screwdriver or knife if the plastic pick feels too weak. Don't do it! Metal tools can easily scratch the phone's frame. Worse, they can crack the delicate glass screen or damage internal components without you even knowing. Stick to plastic tools for prying. [Safety First: Disconnect the Battery!] This is crucial! The very first thing you do once the phone is open is disconnect the battery connector from the motherboard. This little cable supplies power to the whole phone. If it's connected, the phone is still 'live'. Accidentally touching a live component with a tool can cause a short circuit. This could permanently damage the phone or even give you a small shock. Find the battery connector and gently pry it up with a plastic tool, just like disconnecting a car battery terminal before working on the engine. Once the battery is disconnected, the phone is safe to work on. Now, take a moment. Use your phone to snap a quick photo of the inside of the phone. This might seem like an extra step, but it’s a lifesaver. You’ll be surprised how quickly you forget where tiny cables and screws go, especially if you’re working on a busy market stall in Accra or Lagos. This photo is your map for putting everything back together correctly later. Finally, get organised. Phones have many tiny screws, and they are often different sizes and lengths. If you mix them up, you could use a long screw in a short hole, damaging the motherboard. Use a magnetic mat or even small plastic containers. Label each spot or container clearly: 'screen screws', 'camera screws', 'motherboard screws'. This system saves you headaches and keeps your workspace tidy, just like a good mechanic organises their tools. PRACTICE QUESTIONS 1. What should you do FIRST after opening a phone? A) Remove the screen B) Disconnect the battery connector from the motherboard C) Take out the camera D) Clean the speaker Answer: B — Disconnecting the battery first is the most important safety step. A connected battery means the motherboard still has power. Touching the wrong component can cause a short circuit that kills the phone permanently. It is like turning off the main switch before fixing electrical wiring in a house or unplugging a generator before you fix it. Always cut the power first! 2. Why should you never use metal tools to pry open a phone? A) Metal tools can scratch the phone's frame or crack the screen. B) Metal tools are too heavy for delicate phone parts. C) Only plastic tools can detect the phone's internal components. D) Metal tools will automatically trigger the phone's alarm. Answer: A — Metal tools are too hard and sharp for prying open phone cases. They can easily scratch the phone's metal or plastic frame, damage the delicate glass screen, or even short-circuit internal components if they slip. Always use soft plastic opening picks designed for this job to protect the phone from further damage. ---------------------------------------- Mobile Phone Repair Technician — Lesson 4: Screen Replacement Step by Step 12 minutes read OBJECTIVE: By the end of this lesson you can successfully replace a cracked smartphone screen using appropriate tools and techniques. Your phone's screen is like its face. When it cracks, it can be frustrating. But fixing it is one of the most common and important repairs you will do as a mobile technician. It’s a skill that customers in Accra, Lagos, and Lomé will pay good money for. A good screen replacement makes a phone look brand new again. Before you start, make sure you have the right tools. You will need a heat gun or hairdryer, small screwdrivers, plastic opening tools, tweezers, new adhesive (strips or liquid), and most importantly, a brand new replacement screen that is compatible with the phone model you are working on. And don't forget your safety glasses! Glass splinters can be tiny but dangerous. REPLACING A CRACKED SCREEN: THE STEPS - Prepare the Phone: First, turn off the phone and remove the SIM tray. This protects the phone from damage and prevents accidental power-ons. - Heat and Remove the Old Screen: Use a heat gun or hairdryer around the edges of the cracked screen. This softens the adhesive. Gently pry up the screen with a thin plastic tool, being careful of any connected cables. Wear safety glasses, as the broken glass can splinter. - Clean the Frame: This step is crucial. Remove all old adhesive residue from the phone's frame. Use isopropyl alcohol and a soft cloth or a plastic scraper. A clean surface ensures your new screen sticks properly. Imagine trying to stick a poster to a dusty wall – it just won’t hold! - Transfer Components: Carefully remove the earpiece speaker, front camera, and proximity sensor from the old screen assembly. These are usually small, delicate parts held with tiny screws or light adhesive. Transfer them to their correct spots on the new screen. Sometimes, the new screen comes with these parts already installed, but often you need to move them. - Apply New Adhesive: Apply new adhesive strips or liquid glue to the phone's frame where the screen sits. Make sure it's an even layer for a strong hold. Don't use too much liquid glue; a thin, consistent bead is enough. - Connect and Test: Carefully connect the new screen's flex cable(s) to the motherboard. These are flat, ribbon-like cables. Now, power on the phone. This is your chance to check everything: Does the screen turn on? Is the touch working all over? Are there any strange lines or dead pixels? We will talk more about this critical step next. [Always Test Before Sealing!] This is a golden rule in mobile repair. Test the new screen thoroughly while the phone is still open and not fully glued down. If you seal the phone and then discover the new screen is defective or has issues, you have to repeat the entire, painstaking process of reheating, prying, and cleaning. Testing takes just two minutes and can save you hours of frustrating rework and unhappy customers. Think of it like a market trader checking their mobile money payment before the customer walks away – you confirm it works before the deal is sealed! Once you have tested and confirmed the new screen works perfectly, carefully align it with the phone's frame and gently press it down. Ensure it sits flush and evenly. Finally, apply light pressure to the screen (you can use clamps or rubber bands) and let the adhesive cure. For most adhesives, this takes about 30 minutes to an hour. Don't rush this part. A proper cure ensures the screen stays put, even if the phone takes another tumble. Congratulations! You have just replaced a phone screen. This skill will make you a valuable technician in any neighbourhood, from the busiest streets of Kejetia market to a quiet home with a broken phone. Keep practicing, and your speed and precision will grow. PRACTICE QUESTIONS 1. When should you test a new screen after installation? A) After sealing the phone completely B) Before connecting the flex cable C) After connecting the flex cable but BEFORE sealing the phone D) You do not need to test — new screens always work Answer: C — You should always test the new screen after connecting its flex cable to the motherboard, but before you glue or seal it permanently into the phone's frame. This way, if there's a problem with the screen (like dead pixels or touch issues), you can easily swap it out without having to redo all your work. It saves a lot of time and effort, just like tasting your food before you add salt at a local chop bar! 2. Why is it important to clean the phone's frame thoroughly after removing the old screen? A) To make the phone lighter B) To prevent the new screen from sticking properly C) To ensure the new screen adheres strongly and sits flush D) To improve the phone's signal reception Answer: C — Cleaning the frame thoroughly removes all old adhesive residue and debris. If the frame isn't clean, the new adhesive won't bond well, and the new screen might not sit evenly or could lift up later. A clean surface is essential for a strong, lasting repair. Think of it like cleaning a surface before painting; you get a much better finish. ---------------------------------------- Mobile Phone Repair Technician — Lesson 5: Battery Replacement: Giving New Life to Phones 10 minutes read OBJECTIVE: By the end of this lesson you can diagnose battery issues and safely replace a faulty smartphone battery. Imagine a customer walks into your stall at Circle market in Accra. Their phone keeps dying even when the battery meter shows 30% or 40%. Or maybe their phone gets very hot when they charge it, like a hot plate of jollof rice. These are common signs that a phone battery is tired and needs replacing. Knowing how to spot these signs and replace a battery safely is a skill every good mobile repair technician needs. You are giving that phone a new life, and your customer a reason to trust you. IS IT TIME FOR A NEW BATTERY? - Your phone dies suddenly, even when the battery percentage is still high (e.g., 20%, 30%, or 40%). - The phone shuts off randomly, without warning, even when it seems to have charge. - Your phone gets very hot during charging, hotter than usual. Be careful with this! - The battery drains super fast, much quicker than it used to. It's like pouring water into a basket. - The screen is lifting, or the back of the phone is bulging outward. This is a very serious sign. [Danger: Swollen Battery!] If a phone's screen is lifting or its back is bulging, it means the battery inside is swollen. This is dangerous! A swollen battery can puncture easily. If it punctures, it can catch fire or even explode. Handle any phone with a swollen battery with extreme care. Always wear gloves. Never try to push it back down or puncture it yourself. Your safety, and your customer's safety, comes first. Remove it carefully and dispose of it properly, away from other waste. Now, let’s talk about the replacement process. First, always disconnect the power and carefully open the phone. Different phones open in different ways, so make sure you know the model. Once inside, you'll need to disconnect the old battery. Most times, it's held down by adhesive – a strong glue. Use a plastic prying tool to gently lift it. Metal tools can damage other parts or, worse, puncture the battery. If the adhesive is very strong, don’t force it. That's how you damage things. A few drops of isopropyl alcohol (at least 91% concentration) applied carefully under the battery can help. It softens the glue, making the battery easier to remove. Let it sit for a minute or two. Then, carefully pry the battery out. Once the old battery is out, clean the area and install the new battery. Connect it securely to the phone's logic board. After installing the new battery, close up the phone. Then, test your work. Plug the phone into a charger and let it charge up to 100%. Then, unplug it and use the phone for about 30 minutes. Make sure it holds charge and doesn't shut down unexpectedly. This test confirms your repair. Always use genuine or high-quality replacement batteries. Cheap, fake batteries might save you a little money upfront, but they often swell or fail quickly, sometimes within months. This will ruin your reputation with customers in Lagos or Lome, and they won't come back. PRACTICE QUESTIONS 1. What is a sign that a phone battery is swollen and dangerous? A) The phone charges too fast B) The screen is lifting or the back is bulging outward C) The phone is cold to touch D) The battery percentage shows correctly Answer: B — A swollen battery pushes against the phone's frame from the inside, causing the screen to lift or the back to bulge. It's a clear visual sign, like a bag of rice that is too full and stretching. This indicates a very dangerous situation where the battery could catch fire or explode if punctured. Never puncture a swollen battery. Remove it carefully and dispose of it properly. 2. What should you use to carefully pry out an old battery if the adhesive is too strong? A) A metal screwdriver to quickly pop it out B) A few drops of water to dissolve the glue C) A plastic prying tool and possibly a few drops of isopropyl alcohol D) A strong hammer to loosen the grip Answer: C — Using a plastic prying tool prevents damage to other components and reduces the risk of puncturing the battery. If the adhesive is very strong, a few drops of isopropyl alcohol (91% or higher) can help to soften the glue without damaging the phone's internals, making removal safer and easier. Never use metal tools, water, or force. ---------------------------------------- Mobile Phone Repair Technician — Lesson 6: Charging Port Repair 10 minutes read OBJECTIVE: By the end of this lesson you can diagnose charging port issues and perform basic repairs or replacements. Have you ever seen a customer rush into a phone shop, worried their phone won't charge? This is a common problem, and often, the charging port is the culprit. It's not always the charger or the battery. Understanding how to diagnose and fix a charging port can make you a hero to your customers and earn you good money. Over time, tiny bits of dirt, dust, and lint find their way into the charging port. They can build up inside, blocking the connection between the charger and the phone. This is why many phones stop charging even when nothing else seems wrong. Think about the dusty streets of Accra or the busy market stalls in Lagos – that dust gets everywhere! FIRST STEP: CLEAN THE PORT Before you think about replacing anything, always try cleaning the port first. This is a simple fix that saves your customer money and builds their trust in you. Use a wooden toothpick or a plastic dental pick. Gently, but firmly, scrape out any visible debris. You'll be surprised how much gunk can come out! [Important Safety Tip!] Never use anything metal to clean a charging port, like a needle or a pin. Metal conducts electricity. If you touch the charging pins with a metal object, you could short the circuit and cause permanent damage to the phone. Always stick to wood or plastic. If cleaning doesn't work, the charging port itself might be damaged. The tiny pins inside can bend, break, or the port might come loose from the phone's circuit board. This is where your soldering skills come in. Soldering a new charging port is a highly valuable skill because many technicians cannot do it well. It sets you apart and allows you to charge more for your expertise. - Use a fine-tip soldering iron: Precision is key for these small components. - Apply flux: This helps the solder flow smoothly and makes strong connections. - Heat the old solder joints: Carefully remove the broken or faulty port. - Clean the pads: Ensure the tiny connection points on the circuit board are free of old solder and debris. - Position the new port: Make sure it's aligned perfectly. - Solder each pin: Take your time, making sure each pin has a clean, strong solder joint. This repair takes patience and a steady hand, but the profit is excellent. The parts for a new charging port usually cost around 20-50 GHS (or local currency equivalent, perhaps 500-1500 FCFA in Lome). You can charge customers between 300-800 GHS for this repair. That's a huge profit margin for your skill and effort. Imagine how many other technicians just tell the customer to buy a new phone – you'll be fixing it for a fraction of the cost, making a loyal customer and a great income for yourself. PRACTICE QUESTIONS 1. What should you use to clean dirt out of a charging port? A) A metal needle B) Water and soap C) A wooden toothpick (non-metal) D) Compressed air only Answer: C — Metal tools can short the charging pins and damage the phone permanently by conducting electricity. Water and soap can cause rust and electronic damage. While compressed air can help, it often isn't enough to dislodge packed-in dirt. A wooden toothpick or plastic tool is safe and effective because they don't conduct electricity, making them ideal for gently removing debris. 2. Why is learning to solder a charging port a profitable skill? A) The parts are very expensive, allowing you to charge more. B) It requires rare and expensive tools that only a few technicians can afford. C) Many other technicians cannot perform this delicate repair, increasing your value. D) Customers pay extra for repairs that involve heating components. Answer: C — The parts for a charging port are actually quite cheap. The profitability comes from the skill and precision required for soldering, which many technicians lack. This allows you to offer a specialized service that others can't, making you more valuable to customers and justifying a higher price for your expertise. ---------------------------------------- Mobile Phone Repair Technician — Lesson 7: Water Damage Recovery 12 minutes read OBJECTIVE: By the end of this lesson you can perform initial critical steps to recover a water-damaged smartphone effectively. It happens to everyone. Maybe your phone slipped from your hand into a puddle during a downpour in Accra, or it fell into a basin while you were washing up in your compound. Water and electronics do not mix. When a phone gets wet, time is your biggest enemy. You need to act fast, and you need to act correctly. YOUR EMERGENCY CHECKLIST: WHAT TO DO IMMEDIATELY - Power it off. IMMEDIATELY. Do not press any other buttons. This is the most important step. Water conducts electricity. If the phone is on, it can short-circuit and cause serious damage. - Remove everything external. Take off the phone case, open the SIM tray and remove the SIM card. Do the same for any memory card. These small openings can let water in, and removing them helps with drying. - Open the phone and disconnect the battery. This stops all power flow. Many phones today have non-removable batteries, but you can still open the phone (carefully!) and disconnect the battery connector from the motherboard. This is crucial. These first three steps are your golden rules. They prevent immediate, serious damage. In places like Lagos or Lome, where rain can be sudden and heavy, knowing these steps can save a customer's device and earn you a good reputation. THE CLEANING PROCESS: DISPLACING THE WATER Once the power is off and the battery is disconnected, it's time to clean. Water doesn't just damage by shorting circuits; it also leaves behind minerals that cause corrosion. Think of rust forming on metal, but inside your phone! - Rinse the motherboard with isopropyl alcohol (91% or higher). Isopropyl alcohol is special. It mixes with water, pushing it off the components, and then it evaporates much faster than water. This displaces the water and cleans away mineral deposits, preventing corrosion. Use a soft brush or cotton swabs if needed, but be gentle. - Let it dry completely. After cleaning, leave the phone open in a warm, dry place for at least 24 hours. A well-ventilated area is best. Do not use heat like a hairdryer, as this can damage components. [Avoid Rice at All Costs!] Many people believe putting a wet phone in rice helps. It doesn't work well enough. Rice grains can also get stuck in ports and introduce dust, making matters worse. Isopropyl alcohol is your friend, not rice. After 24 hours (or even 48 hours for very wet phones), carefully reassemble the phone. Connect the battery, close the phone, and test it. If you act quickly and follow these steps, your chances of success are good, often 50-60%. But remember, after 48 hours, corrosion really sets in, and the chances drop a lot. Fast action and the right tools make all the difference! PRACTICE QUESTIONS 1. What should you do immediately when a phone falls in water? A) Plug it into a charger to dry it B) Press all the buttons to check if it works C) Power it off immediately and remove the battery D) Put it in a bag of rice Answer: C — Powering off prevents dangerous short circuits — water and electricity are a bad combination. Pressing buttons can push water deeper into the phone. Removing the battery cuts all power. Every second the phone is on while wet increases the chance of permanent damage. Act fast: power off, open, and disconnect the battery to save the phone! 2. Why is isopropyl alcohol (91% or higher) recommended for cleaning a water-damaged phone's motherboard? A) It leaves a protective coating on the circuits. B) It can boil away the water quickly with heat. C) It displaces water and evaporates rapidly, preventing corrosion. D) It attracts water, pulling it away from the components. Answer: C — Isopropyl alcohol (especially 91% or higher concentration) is perfect for this job. It mixes with water, pushing the water off the delicate components, and then it evaporates very quickly. This stops water from sitting on the circuits, which prevents corrosion and further damage. It's much more effective than just drying. ---------------------------------------- Mobile Phone Repair Technician — Lesson 8: Starting Your Own Repair Business 10 minutes read OBJECTIVE: By the end of this lesson you can identify key steps to start and promote your own mobile phone repair business. You've learned how to fix phones. Now, let's talk about turning that skill into your own business. Many young people in Accra, Lagos, and Lomé dream of being their own boss. You can be one too! Starting a phone repair business doesn't need a big loan or a fancy office. You can begin small, right in your community, and grow from there. YOUR FIRST STEPS - Find a Location: You don't need a full shop at first. Maybe a small table at an existing phone accessories shop. Or a kiosk near a busy junction, like those outside Circle in Accra. Even a dedicated space in your home can work if you advertise locally. - Simple Signage: Make it clear what you do. Print a simple sign: 'Phone Repair – Screen, Battery, Charging Port.' Add your mobile money number or phone number for quick contact. - Competitive Prices: Do some research. What do other repairers in your area charge for common fixes? Set your prices 10-20% below theirs to attract your first customers. You can always adjust later. - Offer a Warranty: This builds trust. Promise a 30-day warranty on your repairs. If a screen you replaced stops working within that time, you'll fix it again for free. This shows you stand by your work. - Source Parts Wisely: You'll need spare parts. You can buy them wholesale from places like Computer Village in Lagos. Or order online from platforms like AliExpress. Just remember, online orders can take two weeks or more to arrive, so plan ahead. [Cash Flow and Profit] In business, 'cash flow' means the money coming in and going out. It's important. You might earn 200-500 GHS per repair. Parts for that repair might cost 20-100 GHS. Your profit is the money left over after buying the part. Good cash flow means you always have money to buy more parts and pay for your needs. Once you get going, your most powerful marketing tool isn't a radio advert or a billboard. It's your satisfied customers. Think about it: every person whose phone you fix well will tell three friends. Word-of-mouth is strong in our communities. When Auntie Akua’s phone is fixed quickly and the screen looks new, she tells her church group, her market friends, and her WhatsApp contacts. One good repair can bring you many new customers. Within six months, if you consistently do good work, you could have a steady flow of 3-5 repairs per day. Let's do some quick maths. If you average 3 repairs a day at 300 GHS each, that's 900 GHS revenue daily. Minus average part costs, you're looking at a healthy income. This is how you build a solid business from a valuable skill. PRACTICE QUESTIONS 1. What is the best way to get your first phone repair customers? A) Radio advertisements B) Billboards C) Fix phones well, offer a warranty, and let word-of-mouth spread D) Television commercials Answer: C — In West African communities, word-of-mouth is the strongest advertising. When Aunty Akua's phone is fixed quickly and the screen looks new, she tells her church group, her market friends, and her WhatsApp contacts. One good repair can bring ten customers. A warranty shows confidence in your work — customers trust a technician who guarantees their repair. Expensive adverts like radio or TV are not necessary when starting small. 2. Why is offering a 30-day warranty on your repairs important when starting your business? A) It guarantees that no phone will ever have a problem after you fix it. B) It attracts customers by showing you trust your own work and builds their confidence in you. C) It is a legal requirement for all businesses in West Africa. D) It allows you to charge higher prices for your repairs. Answer: B — A warranty doesn't mean problems will never happen, but it shows customers you're confident in your skills. If something goes wrong, you'll fix it, building trust and encouraging them to choose you again or recommend you. It's about reputation, not charging more or legal requirements. ---------------------------------------- Mobile Phone Repair Technician — Lesson 9: Protecting Customer Privacy and Data Ethics 7 minutes read WHY PRIVACY MATTERS IN MOBILE REPAIR When a customer hands you their phone, they are giving you access to their personal life. A phone contains family photos, bank and mobile money accounts, private WhatsApp messages, and business documents. Trust is the foundation of any repair technician's business. If a customer feels their data is unsafe with you, they will never return. Even worse, word spreads quickly in local markets and neighborhood groups. One mistake regarding customer privacy can end your repair career before it starts. HANDLING PASSCODES AND PASSWORDS SAFELY You often need the screen unlock passcode to test touch responsiveness, cameras, speakers, and microphone functions after completing a repair. Here is how to handle customer passcodes professionally: - Ask for the passcode only when necessary for final quality testing. - Write down the passcode on a paper repair slip, never in your personal phone contacts. - Ask the client if they prefer to enter the passcode themselves while sitting in front of you. - Never open gallery apps, social media, messaging apps, or mobile banking apps under any circumstances. - Cross out or destroy paper notes containing passcodes as soon as the customer picks up the device. [Strict Ethics Rules] Never copy, screenshot, transfer, or save any media, contact, or file from a customer's device. Browsing private photos or messages is unethical and illegal in many regions. Always treat customer data with total confidentiality. HONESTY ABOUT REPLACEMENT PARTS Ethics in repair is not only about data. It is also about the hardware you put inside the phone. There are usually different quality levels of spare parts available in local markets, such as original OEM parts, high-copy screens, and cheap budget displays. Always be transparent with your customer about what you are installing. If you are using a high-copy LCD screen because the original display is too expensive for the customer, state this clearly before starting the work. Never charge a customer for an original component while installing a lower-grade copy. If a customer discovers the lower display brightness or reduced touch quality later, your reputation will be damaged. [Try this today] Draft a standard 3-step privacy check on a small notebook: 1) Record device state on arrival, 2) Get passcode consent for testing only, 3) Perform screen test in front of client whenever possible. Practice explaining this procedure to a friend. PRACTICE QUESTIONS 1. What should you do if you need to test a phone's screen touch response after replacing it? A) Browse through the client's photos to check screen color accuracy B) Ask for the passcode only for testing, avoid private apps, or test in front of the client C) Save the client's passcode in your personal phone for future repairs D) Open banking apps to see if touch response works near the edges Answer: B — Passcodes should only be used to unlock the phone for basic functional tests. Never browse private apps, photos, or personal accounts. 2. If an original battery is unavailable and you must use a high-quality aftermarket battery, what is the correct ethical approach? A) Install it quietly and charge the original price B) Tell the customer it is original so they do not worry C) Inform the client beforehand, explain the quality level, and adjust the price accordingly D) Refuse to work on the phone entirely without explaining Answer: C — Honesty builds long-term trust. Always explain the part options and quality levels clearly to the client before you buy or install components. ---------------------------------------- Mobile Phone Repair Technician — Lesson 10: Pricing Repairs and Avoiding Common Scams 8 minutes read HOW TO PRICE YOUR REPAIR WORK Setting the right price for mobile repair work ensures you cover your expenses, earn a fair income, and stay competitive in your local market. Many beginners either undercharge and lose money, or overcharge and push customers away. A reliable formula to calculate your repair price is: Total Price = Cost of Spare Part + Transport/Shipping Fee + Labor Fee + Risk Buffer - Cost of Spare Part: What the supplier charges you for the screen, battery, or charging flex. - Transport Fee: Tro-tro fare, bus, fuel, or delivery cost to get the part from the central market. - Labor Fee: The fee for your skill, time, and tool wear. - Risk Buffer: A small amount saved to cover potential mistakes, like a damaged flex cable during installation. REAL-WORLD EXAMPLE CALCULATION Suppose a client brings a phone needing a screen replacement in Accra or Lagos. The new screen costs 120 GHS (or 12,000 Naira). Your transport to the market costs 10 GHS (1,000 Naira). You value your repair labor at 50 GHS (5,000 Naira), and add 10 GHS (1,000 Naira) as a buffer for risk. Your final quote to the client will be 190 GHS (19,000 Naira). PROTECTING YOURSELF WITH UPFRONT DEPOSITS Never purchase expensive replacement parts with your own money without securing a deposit from the customer first. A client may change their mind while you are at the market, leaving you with a costly screen you cannot sell quickly. Always request a deposit covering at least 50% to 100% of the spare part cost before buying it. Issue a simple paper receipt or WhatsApp confirmation noting the deposit amount, phone serial number, and agreed completion time. [Common Scams to Avoid] 1. Non-paying clients: Customers who demand their phone back before paying full balance. Always test the phone together, then collect payment before handing the phone over. 2. Motherboard swap claims: Clients accusing you of swapping internal parts. Always write down the IMEI number and take photos of the interior before working. 3. Defective market parts: Buying parts without testing at the supplier desk. TESTING SPARE PARTS BEFORE YOU LEAVE THE VENDOR When purchasing parts in busy markets, test screens and batteries at the supplier's desk before paying or leaving. Most market suppliers allow you to plug the flex cable into a test board or the customer's open phone frame on site. Once you leave the market without testing, many suppliers will refuse refunds for damaged flex cables or faulty touch screens. [Try this today] Write down a simple price list for 3 common services: Screen Replacement, Battery Swap, and Charging Port Repair. Estimate your market transport cost and reasonable labor fee for each service. PRACTICE QUESTIONS 1. Why should you collect a deposit from a customer before buying a replacement screen? A) To buy personal groceries before working B) To ensure you do not lose your own money if the customer cancels or vanishes C) Because spare parts vendors require deposit slips from clients D) To pay for your phone repair training course Answer: B — Deposits protect your working capital. If a client cancels after you buy a specific screen, your money is locked up unless you collected a deposit. 2. What should you do at the spare parts supplier shop before paying for a new display assembly? A) Take it home immediately to save time B) Test the display touch and visual output on site if possible C) Bend the flex cable to see if it is durable D) Ask for a 6-month cash refund guarantee Answer: B — Testing parts at the supplier's desk prevents you from bringing home defective parts that vendors may refuse to exchange later. ---------------------------------------- Mobile Phone Repair Technician — Lesson 11: Building Your Repair Portfolio and Proof of Skill 7 minutes read WHY PROOF OF SKILL MATTERS When customers look for someone to fix their expensive smartphones, they look for proof of competence. Simply telling people you know how to repair phones is rarely enough. A clean visual portfolio showing your actual work builds immediate confidence. You do not need an expensive digital camera or a website to show proof of skill. A clear smartphone camera and an organized photo folder are all you need to start. TAKING PROFESSIONAL BEFORE-AND-AFTER PHOTOS Every repair job is an opportunity to create content for your portfolio. Follow these basic guidelines when photographing your work: - Lighting: Work under bright desk lights or daylight near a window. Avoid dark shadows. - Clean Background: Place the phone on a clean silicone repair mat, plain paper, or dark cloth. Avoid cluttered work tables. - The 'Before' Shot: Photograph the broken screen, damaged charging port, or water-damaged board clearly. - The Process Shot: Take a picture of the open device showing your neat arrangement of screws and organized tools. - The 'After' Shot: Photograph the phone fully assembled, powered on, displaying a clean crisp wallpaper. [Protecting Client Data in Portfolio Photos] Before sharing photos of repaired screens online or with potential clients, ensure no personal information is visible. Hide personal lock-screen photos, blur phone numbers, and hide incoming WhatsApp notification pop-ups. GATHERING CUSTOMER TESTIMONIALS Written reviews and short audio notes from satisfied clients are strong proofs of reliability. After a successful repair, ask the customer: 'If you are happy with the repair, would you mind sending a short message on WhatsApp saying how the phone works?' Keep a screenshot folder of these positive messages. When prospective clients hesitate on price or quality, sharing 2 or 3 real feedback screenshots often convinces them. [Try this today] Take a 'Before and After' photo set of your next repair project or practice device. Ensure the lighting is clear, background is clean, and screen notifications are covered or hidden. PRACTICE QUESTIONS 1. When taking a photo of a completed screen repair for your portfolio, what must you check on the display screen? A) That the brightness is set to 0 percent B) That personal notifications, client photos, or names are hidden or blurred C) That you are holding the phone in direct sunlight D) That the back cover is removed Answer: B — Protecting client privacy is critical. Never display personal photos, names, or messages in public portfolio pictures. 2. What is an effective way to use customer feedback to win new clients? A) Write fake reviews using random names B) Save screenshots of genuine positive WhatsApp feedback and show them to prospective clients C) Post client phone numbers on public billboards D) Force customers to record video reviews before giving back their phones Answer: B — Genuine feedback screenshots show real proof of satisfied customers, building trust with new prospective clients. ---------------------------------------- Mobile Phone Repair Technician — Lesson 12: Using WhatsApp Business and Local Networks to Get Work 8 minutes read USING WHATSAPP BUSINESS AS YOUR DIGITAL SHOP In West Africa and many global markets, WhatsApp is the primary communication tool for small businesses. WhatsApp Business offers free features designed to showcase your services professionally without needing a paid website. KEY WHATSAPP BUSINESS FEATURES TO SET UP - Business Profile: Set a clear profile photo showing you at your organized workbench. Include your business location and working hours. - Catalog Feature: Create items in your catalog for common repairs (e.g., 'iPhone Screen Replacement', 'Android Battery Change', 'Port Cleaning'). Add clear pictures and starting price ranges. - Quick Replies: Save typed answers for common questions like location directions, payment details, or repair turnaround time. - Labels: Tag chats as 'Pending Repair', 'Waiting for Parts', or 'Ready for Pickup' to stay organized. SHARING VALUE ON WHATSAPP STATUS Posting continuously with 'Bring your phone for repair!' gets ignored. Instead, share short, helpful maintenance tips on your status update once or twice a week: - 'How to clear lint from your charging port using a wooden toothpick.' - 'Why charging your phone under a pillow causes battery swelling.' - 'Short video clip: Testing a fresh screen assembly before final installation.' When people see practical advice, they view you as a knowledgeable professional. When their phone eventually breaks, you are the first person they message. NETWORKING WITH LOCAL MARKET VENDORS You do not need to work in isolation. Establish friendly connections with people in your local commercial area: - Phone Accessories Sellers: Vendors who sell cases and chargers often get asked for repair recommendations. Offer them a small commission or return customer referrals. - Used Phone Traders: Sellers of second-hand phones frequently need quick screen replacements or battery swaps before selling devices. - Local Barber Shops and Tailors: Leave simple printed contact cards or stickers at busy neighborhood spots. [Try this today] Download WhatsApp Business if you haven't already. Add 2 services to your Catalog with clear titles, descriptions, and neat photos of your repair space or past work. PRACTICE QUESTIONS 1. Why is sharing phone care tips on your WhatsApp status better than only posting price ads? A) Tips make people want to break their own phones B) Tips build professional trust and keep your service in mind when repairs are needed C) Tips cost more money to post on WhatsApp D) Status updates only allow video tips Answer: B — Sharing helpful advice establishes your expertise and keeps you top-of-mind when friends or contacts eventually face device issues. 2. How can networking with local phone accessory vendors bring you repair jobs? A) Accessory vendors buy your repair tools B) Accessory vendors frequently meet customers with broken phones and can refer them to you C) Accessory vendors fix motherboards for free D) Accessory vendors pay your monthly business rent Answer: A — Accessory sellers constantly interact with phone users. Partnering with them creates a steady stream of customer referrals. ---------------------------------------- Mobile Phone Repair Technician — Lesson 13: Build Your Professional Profile 10 min read OBJECTIVE: Set up a simple, honest professional presence online so employers and customers can find and trust you. Before someone hires you or buys from you, they often look you up. A professional profile is simply a clean, honest page that answers three questions: who are you, what can you do, and how can someone reach you? You do not need to be famous or have a computer. A phone and one good photo are enough to start. START WITH WHAT IS FREE - WhatsApp Business — free app. Add your trade, working hours, location and a short catalogue of your work or services. Many customers in West Africa will find you here first. - Google Business Profile — free. If you have a shop, workshop or stall, this puts you on Google Maps so people nearby can find you. - LinkedIn (free Basic account) — useful if you want office, NGO or company work. Add a clear photo, your trade or skill, and two or three lines about what you have done. - Local job and trade groups — Facebook and WhatsApp groups for your town or trade are where many real opportunities are shared first. You do not need all four on day one. Pick the one where your customers or employers actually are. A tailor or caterer may get more from WhatsApp Business and local groups; an IT support learner may need LinkedIn first. Add the others over time. WHAT MAKES A PROFILE TRUSTWORTHY - A real photo of you — face visible, plain background, neat clothing. No sunglasses, no filters. - Your real name, written the same way everywhere. - One honest sentence about what you do: 'I install and repair solar home systems in Hohoe.' - Proof: photos of finished work, a certificate, or a short quote from a happy customer. - A phone number or WhatsApp link that actually works. [Protect yourself] Never pay anyone who promises to 'verify' your profile or guarantee you a job for a fee. Real platforms like LinkedIn, WhatsApp Business and Google Business Profile are free to set up. Anyone asking for money to list you is likely a scammer. [Try this today] Write your one honest sentence — who you are and what you do — and save it in your notes. You will reuse it in every profile, CV and introduction from now on. PRACTICE QUESTIONS 1. Which of these is free to set up and puts your workshop on Google Maps? A) A paid business directory B) Google Business Profile C) A printed flyer D) A website you pay a developer for Answer: B — Google Business Profile is free and places your business on Google Maps and Search, so people nearby can find you. You only need a phone and your business details. 2. What is the most important quality of a professional profile photo? A) It was taken by a professional photographer B) It uses an attractive filter C) Your face is clearly visible and you look neat D) It shows you with expensive items Answer: C — Employers and customers want to see a real, trustworthy person. A clear, neat photo with a plain background builds more trust than any filter or expensive backdrop. ---------------------------------------- Mobile Phone Repair Technician — Lesson 14: Write Your Goals and Plan for Obstacles 10 min read OBJECTIVE: Turn a wish into a written goal, review it weekly, and use if-then plans to handle the obstacles that usually stop you. A goal that stays in your head is a wish. A goal written down, with a date and a next step, is a plan. Research on how people actually change their behaviour keeps finding the same thing: people who write their goals down, check them regularly, and decide in advance what to do when things go wrong are far more likely to finish what they start. WRITE IT DOWN, THE PRACTICAL WAY - One goal at a time. 'Finish the solar course by 30 November' beats five vague wishes. - Make it checkable. You should be able to say 'done' or 'not done' — not 'I tried my best'. - Give it a date. A goal without a date quietly becomes 'someday'. - Write the very next small step. Not 'get a job' but 'message two hardware shops on Saturday morning'. - Keep it where you will see it — a notebook, a note on your phone, or paper on the wall. THE WEEKLY REVIEW — 15 MINUTES THAT CHANGE EVERYTHING Pick one fixed moment each week — Sunday evening works well for many people. Ask yourself three questions: What did I finish this week? What got in my way? What is my next step for the coming week? Write the answers down. This small habit catches problems while they are still small, and it reminds you that you are moving, even when progress feels slow. IF-THEN PLANS: DECIDE BEFORE THE OBSTACLE ARRIVES Most plans fail at the same predictable moments: the data bundle runs out, a friend invites you out on study night, rain cancels the job you planned. An if-then plan is a decision you make now, so a hard moment does not require willpower later. The format is simple: 'IF [obstacle happens], THEN I will [specific action].' - IF my data finishes, THEN I will study from my downloaded offline lessons instead. - IF it rains on the day I planned to visit shops, THEN I will call them instead and visit the next day. - IF I feel too tired to study at night, THEN I will do just 10 minutes — starting is the hard part. - IF a customer delays payment, THEN I will send one polite reminder after three days, not argue. [A note on visualisation] Imagining your goal can help — but picture the steps, not just the reward. Instead of only dreaming about the certificate on your wall, picture yourself opening the lesson, answering the quiz, and messaging the customer. Picturing the process prepares you; picturing only the prize can actually relax you into doing nothing. [Try this today] Write one goal with a date, then write two if-then plans for the obstacles most likely to stop you. Keep them somewhere you will see this week. PRACTICE QUESTIONS 1. What makes a goal 'checkable'? A) It is written in English B) You can clearly say whether it is done or not done C) Other people approve of it D) It is ambitious enough to impress people Answer: B — A checkable goal has a clear finish line: 'finish 8 lessons by Friday' can be marked done or not done. 'Do my best' cannot — and vague goals are easy to quietly abandon. 2. Your study night arrives and your data bundle has run out. What does a good if-then plan do? A) It forces you to buy more data immediately B) It tells you to skip studying until next week C) It gives you a decision you made in advance, like switching to your downloaded offline lessons D) It punishes you for not planning better Answer: C — An if-then plan removes the need for willpower in the moment: you decided earlier that IF data runs out, THEN you study offline. The decision is already made, so you just follow it. ---------------------------------------- Mobile Phone Repair Technician — Lesson 15: Introduce Yourself in 30 Seconds 8 min read OBJECTIVE: Prepare and practise a short, confident self-introduction you can use with employers, customers and new contacts. Many capable people miss opportunities because they freeze when someone asks 'So, what do you do?' A self-introduction is a short, prepared answer — about 30 seconds — that you have practised until it feels natural. It is not showing off. It is simply making it easy for people to understand how you can help them. THE THREE-PART SCRIPT - Who you are: your name and your trade or skill. 'My name is Amina. I am a trained pharmacy assistant.' - What you can do: one or two concrete things, with proof if you have it. 'I have completed training in dispensing support and stock management, and I helped in a busy pharmacy for three months.' - What you are looking for: say it clearly. 'I am looking for a position in a pharmacy or clinic in this area.' or 'I take catering orders for events of up to 100 people.' Put together, it sounds like this: 'Good morning, my name is Kofi. I am a solar technician — I have finished certified training in home solar installation, and I have already installed systems for three families in this town. I am looking for more customers, and I also do repairs and maintenance. Here is my number.' Thirty seconds, and the listener knows exactly what you offer. MAKE IT YOURS - Adjust the ending for the listener: a customer hears what you sell; an employer hears what job you want; a contact hears how they can help you. - Practise out loud, not in your head — say it to a friend, a mirror, or your phone's voice recorder, five times. - Keep it honest. A small true claim beats a big exaggerated one that falls apart at the first question. - End with a way to reach you: your number, your WhatsApp, or where your shop is. [For shy learners] Feeling nervous is normal and does not mean you are bad at this. Preparation is the cure: a practised script means you never have to invent sentences while nervous. Start by using it in low-pressure moments — with a neighbour, then a shopkeeper — before the big interview or the important customer. [Try this today] Write your three-part introduction in your notes, then say it out loud three times. Use it once this week with a real person. PRACTICE QUESTIONS 1. What are the three parts of a good 30-second introduction? A) Your family background, your education, your hobbies B) Who you are, what you can do, what you are looking for C) Your salary expectation, your location, your age D) Your problems, your needs, your complaints Answer: B — The script answers the three questions every listener has: who is this person, what can they do for me, and what do they want? Keep it short, honest and practised. 2. What is the best way to prepare your introduction? A) Memorise a long speech about your whole life B) Wait for inspiration in the moment C) Practise a short script out loud several times before you need it D) Copy someone else's introduction word for word Answer: C — Saying it out loud — to a friend, mirror or voice recorder — is what makes it feel natural under pressure. A short, honest, practised script beats both improvisation and a long memorised speech. ---------------------------------------- GLOSSARY (PCM) Motherboard: di main board inside phone Short circuit: when current find wrong road pass Reballing: to change di small solder balls under chip Firmware: di software wey dey inside di phone itself GLOSSARY (HA) Motherboard: babbar allo a cikin waya Short circuit: lokacin da wuta ta bi hanyar da ba daidai ba Firmware: software da ke cikin wayar kanta Get the full app: https://miva-skillsnav.lovable.app