Understanding Mobile Technology:
Basic mobile phone functions and components: screen (LCD/LED), battery, motherboard, camera, charging ports, and speakers.
Operating systems: Introduction to popular mobile operating systems like
Android, iOS, and Windows Phone.
Differences between smartphones and feature phones.
Types of Mobile Devices:
Repairing various models such as Android, iPhones, and other popular brands like Samsung, Huawei, Xiaomi, etc.
Understanding different mobile technologies, including GSM, CDMA, and 5G connectivity.
Mobile Screen Repair:
Replacing cracked screens: Learn how to carefully remove a broken screen and install a new one.
Understanding touch digitizers and LCD/OLED screens.
Reworking screens for different brands (e.g., Samsung, iPhone, Xiaomi).
Battery Repair/Replacement:
Diagnosing battery issues such as battery draining quickly or battery swelling.
Replacing mobile batteries safely and learning how to properly install them.
Understanding battery health monitoring and using tools to measure battery capacity and performance.
Charging Port and Audio Jack Repair:
Diagnosing issues with charging ports, such as when devices fail to charge or show charging errors.
Replacing USB/charging ports and headphone jacks.
Troubleshooting audio issues, including microphone and speaker replacements.
Motherboard and Component Level Repair:
Diagnosing motherboard issues: Repairing common motherboard faults such as no power, no display, or failing circuits.
Soldering techniques to fix damaged chips, resistors, capacitors, or
connectors.
Reflow soldering for repairing microchips and ICs on the motherboard.
Camera and Sensor Repairs:
Replacing damaged or malfunctioning front/back cameras.
Troubleshooting and repairing fingerprint sensors, proximity sensors, and
other internal components.
Software Diagnostics:
Understanding common software problems: operating system crashes, app freezing, or malware infections.
Diagnosing issues using booting logs, recovery mode, and diagnostic tools.
Flashing ROMs or firmware updates to fix software-related issues.
Factory Resets and Data Recovery:
Performing factory resets when a device is not responding, ensuring data is backed up first.
Recovering data from damaged devices (e.g., contacts, photos, messages, etc.).
Unlocking phones from carrier restrictions or software locks (e.g., SIM unlock or iCloud unlocking).
Operating System Installation:
Learn to flash and install a fresh copy of the Android OS or iOS to fix issues like software corruption.
Understanding the processes for upgrading or downgrading mobile operating systems.
Essential Mobile Repair Tools:
Screwdrivers: Specialized tools for removing screws from various mobile device models.
Prying Tools and Spudgers: To safely open the phone without damaging components.
Soldering Iron and Hot Air Rework Station: For repairing motherboard components at the chip level.
Multimeter: Used to check voltage and continuity of various components.
Screen Separation Machines: To safely separate screens from the frame without damaging them.
Battery Tester: For diagnosing battery health and performance.
Advanced Equipment:
Microscope: For inspecting tiny components like capacitors, ICs, and solder joints on the motherboard.
Infrared (IR) BGA Rework Station: For fixing ball grid array (BGA) chips on the mobile motherboard.
Disassembly and Reassembly:
Understanding the process of disassembling and reassembling mobile devices.
Learning how to handle delicate parts like screens, batteries, and connectors during repairs.
Protecting sensitive parts during disassembly to avoid damage.
Replacing Components:
Step-by-step replacement techniques for screens, batteries, charging ports, microphones, and more.
How to replace motherboard components using soldering and desoldering techniques.
Rework and Repairing Microchips:
Component-level rework for small components such as resistors, capacitors, and integrated circuits (ICs).
Replacing or repairing microchips on the mobile motherboard.
Diagnosing Common Issues:
No display or dead phone: Techniques to troubleshoot a device with a black screen or that won't power on.
No signal or network issues: Diagnosing problems with the antenna, SIM card reader, and network connection.
Audio issues: Identifying and fixing microphone, speaker, and earphone problems.
Using Diagnostic Software:
How to use software tools to diagnose and fix mobile OS issues, check for hardware problems, and check system logs.
Installing and using mobile repair software to fix firmware bugs or system glitches.
Preventing Malware and Data Breaches:
Protecting mobile devices from viruses, malware, and other forms of attack.
Ensuring devices are secure by installing proper security apps, using password protection, and enabling two-factor authentication.
Privacy Concerns and Data Protection:
Learning to remove personal data securely from devices before resale or repair.
Data recovery tools for retrieving lost data from damaged or wiped devices.