Phone Repairer Course

Lesson 1 • Reading Repair Documentation

Explains service manuals, exploded diagrams, and screw maps. Accurate documentation reading accelerates diagnosis and reduces reassembly errors.

Lesson 2 • Repair Workspace Setup

Defines the ideal bench environment, lighting, and anti-static measures. Proper setup prevents component damage and supports efficient workflow throughout the course.

Lesson 3 • Smartphone Hardware Overview

Covers internal components, their functions, and physical layout across major device families. Establishes the anatomical baseline needed for every subsequent repair task.

Lesson 4 • Electrical Safety and ESD Prevention

Teaches electrostatic discharge risks, grounding techniques, and safe voltage handling. Prevents technician injury and protects sensitive components from invisible damage.

Lesson 1 • Visual and Physical Inspection

Teaches external and internal visual checks for cracks, corrosion, and burn marks. Physical inspection reveals obvious faults and guides deeper diagnostic steps.

Lesson 2 • Software-Based Diagnostic Tools

Introduces built-in diagnostic modes, third-party apps, and PC-based tools for reading device logs. Software diagnostics confirm hardware faults and reveal firmware-level issues.

Lesson 3 • Multimeter Use in Phone Repair

Applies multimeter functions to measure voltage, continuity, and resistance on phone circuits. Meter readings confirm power delivery faults and guide board-level investigation.

Lesson 4 • Intake Assessment and Customer Interview

Covers structured questioning to capture fault history, drop events, and liquid exposure. Accurate intake data narrows the fault domain before any physical inspection begins.

Lesson 1 • Display Technology Fundamentals

Compares LCD, OLED, and AMOLED panel construction and failure modes. Understanding panel differences determines correct replacement selection and handling procedures.

Lesson 2 • Adhesive Application and Sealing

Applies pre-cut adhesive strips and liquid adhesive for waterproof reassembly. Correct sealing restores dust and moisture resistance ratings where applicable.

Lesson 3 • Screen Testing and Calibration

Validates touch response, color accuracy, and brightness before final sealing. Testing before adhesive application avoids costly rework on sealed assemblies.

Lesson 4 • Safe Screen Removal Techniques

Covers heat application, suction, and pry techniques for adhesive-bonded screens. Controlled removal prevents frame damage and preserves reusable components.

Lesson 1 • Battery Removal Procedures

Covers adhesive pull-tab, stretch-release, and solvent-assisted removal methods. Correct technique prevents cell puncture and frame deformation during extraction.

Lesson 2 • Battery Health Assessment

Uses software tools and voltage readings to evaluate capacity and cycle count. Accurate health data justifies replacement and sets correct customer expectations.

Lesson 3 • Battery Installation and Verification

Installs replacement cells with correct adhesive and connector seating. Post-installation verification confirms stable voltage, charging, and accurate capacity reporting.

Lesson 4 • Charging Port and Power Circuit Checks

Tests charging ports, charge ICs, and power management circuits after battery work. Verifying the full power path prevents repeat failures and missed root causes.

Lesson 1 • Button and Switch Replacement

Replaces power, volume, and mute switches using flex cable and SMD component methods. Functional buttons are essential for device usability and pass final quality checks.

Lesson 2 • Post-Repair Functional Testing

Runs charging, data sync, and button response tests before device reassembly. Systematic testing catches installation errors before the device is returned to the customer.

Lesson 3 • Charging Port Replacement

Covers flex-cable port swaps and soldered port removal and installation techniques. Clean installation restores reliable charging and data transfer without cold joints.

Lesson 4 • Charging Port Fault Diagnosis

Identifies bent pins, debris blockage, and pad damage as root causes of charging failure. Accurate diagnosis determines whether cleaning, port swap, or board repair is needed.

Lesson 1 • Camera Module Replacement

Removes and installs rear and front camera modules with correct flex routing and seating. Proper installation prevents autofocus errors and maintains optical alignment.

Lesson 2 • Camera Fault Diagnosis

Uses test apps and visual inspection to distinguish lens, sensor, and software faults. Correct diagnosis prevents unnecessary module replacement and reduces repair cost.

Lesson 3 • Microphone and Speaker Repair

Diagnoses and replaces bottom microphones, earpiece speakers, and loud speakers. Audio component repair restores call quality and media playback to factory standard.

Lesson 4 • Camera System Architecture

Maps the optical, image signal processor, and flex cable path for front and rear cameras. System understanding guides accurate fault isolation between hardware and software causes.

Lesson 1 • Safe Disassembly of Wet Devices

Sequences disassembly to isolate the battery before any other component is touched. Removing power first is the critical step that prevents board damage during wet teardown.

Lesson 2 • Recovery Verification and Customer Communication

Tests all device functions and documents recovery outcomes for transparent customer reporting. Honest outcome communication manages expectations and builds long-term customer trust.

Lesson 3 • Ultrasonic and Manual Board Cleaning

Applies isopropyl alcohol scrubbing and ultrasonic cleaning to remove corrosion and mineral deposits. Thorough cleaning is the primary recovery step for liquid-damaged boards.

Lesson 4 • Component-Level Fault Finding After Cleaning

Uses multimeter and visual inspection to find residual faults after the board is clean and dry. Post-cleaning diagnosis identifies components that need replacement despite cleaning.

Lesson 1 • Board-Level Fault Verification

Applies DC power supply current monitoring and boot sequence analysis to confirm repair success. Systematic verification prevents returning a board with hidden residual faults.

Lesson 2 • BGA Reballing and IC Replacement

Removes solder balls, applies stencil-aligned new balls, and refluxes BGA chips. Reballing restores connectivity to NAND, RAM, and power management ICs on the board.

Lesson 3 • Trace Repair and Jumper Wiring

Restores broken PCB traces using conductive ink and fine wire jumpers under magnification. Trace repair recovers boards with physical damage that cleaning alone cannot resolve.

Lesson 4 • Hot Air Rework Station Techniques

Controls airflow, temperature, and nozzle selection for IC removal and BGA rework. Correct hot air technique prevents pad lift and thermal damage to adjacent components.