Phone Repair Course

Lesson 1 • Setting Up the Repair Workspace

Guides layout of tools, lighting, and storage for an efficient bench. A well-organized workspace reduces errors and speeds diagnosis.

Lesson 2 • Essential Tools and Their Uses

Introduces screwdrivers, spudgers, tweezers, and opening picks. Matching the correct tool to each task prevents cosmetic and structural damage.

Lesson 3 • Repair Safety and ESD Control

Addresses electrostatic discharge risks, chemical hazards, and safe handling of lithium batteries. Prevents damage to components and injury to the technician.

Lesson 4 • Smartphone Anatomy Overview

Covers internal and external components of modern smartphones. Establishes the vocabulary needed for every subsequent repair task.

Lesson 1 • Using a Multimeter for Phone Repair

Covers voltage, continuity, and resistance measurements on phone circuits. Multimeter readings confirm or rule out component-level failures.

Lesson 2 • Power and Boot Fault Diagnosis

Focuses on devices that fail to power on, boot loop, or shut down unexpectedly. Teaches current-draw analysis using a DC power supply.

Lesson 3 • Water Damage Assessment

Teaches inspection of corrosion, liquid indicators, and affected circuits. Accurate assessment determines repair feasibility and cleaning priority.

Lesson 4 • Systematic Troubleshooting Approach

Establishes a repeatable diagnostic workflow from symptom to root cause. Prevents unnecessary disassembly and component replacement.

Lesson 1 • Touch and Display Calibration Testing

Verifies touch accuracy, color output, and brightness after replacement. Functional testing before final closure prevents repeat disassembly.

Lesson 2 • Screen Replacement and Adhesive Application

Guides installation of replacement screens with pre-cut tape and liquid adhesive. Proper adhesive application ensures waterproofing and structural integrity.

Lesson 3 • Safe Screen Removal Techniques

Covers heat application, suction, and pry techniques for adhesive-bonded screens. Controlled removal prevents frame damage and broken flex cables.

Lesson 4 • Display Technology Fundamentals

Compares LCD, OLED, and AMOLED panel characteristics and failure modes. Understanding panel type determines correct handling and replacement sourcing.

Lesson 1 • Battery Removal Techniques

Covers adhesive pull-tab, solvent, and pry methods for various phone models. Correct technique prevents puncture and maintains chassis integrity.

Lesson 2 • Battery Installation and Connector Seating

Guides placement, adhesive securing, and connector engagement of new batteries. Proper installation prevents movement and intermittent contact faults.

Lesson 3 • Battery Health Assessment

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

Lesson 4 • Charging Circuit Fault Diagnosis

Identifies failures in charge ICs, MOSFET switches, and charging coils. Distinguishes battery faults from board-level charging failures.

Lesson 1 • Camera Module Types and Faults

Covers wide, ultrawide, telephoto, and front camera modules and their common failures. Identifying the specific module at fault avoids unnecessary replacements.

Lesson 2 • Camera Replacement Procedure

Guides safe removal and installation of rear and front camera modules. Correct handling prevents flex damage and maintains optical alignment.

Lesson 3 • Speaker Replacement and Sealing

Covers removal, installation, and acoustic sealing of speaker assemblies. Proper sealing restores bass response and maintains dust resistance.

Lesson 4 • Speaker Assembly Diagnosis

Tests earpiece and loudspeaker output using tone generators and multimeter checks. Distinguishes blown speakers from connector and software faults.

Lesson 1 • Soldered Port Replacement Basics

Introduces hot-air rework and soldering iron techniques for board-mounted ports. Proper heat control prevents pad lift and board delamination.

Lesson 2 • Power and Volume Button Repair

Covers diagnosis and replacement of tactile switches and flex-mounted button assemblies. Button failures are often misdiagnosed as software issues.

Lesson 3 • Flex-Mounted Port Replacement

Guides removal and installation of charging ports on flex cable assemblies. Flex-mounted ports require careful routing to avoid stress fractures.

Lesson 4 • Charging Port Types and Failure Modes

Compares USB-C, Micro-USB, and proprietary port designs and their failure patterns. Correct fault identification determines whether cleaning or replacement is needed.

Lesson 1 • Pad Repair and Jumper Wiring

Restores lifted pads and broken traces using conductive epoxy and wire jumpers. Trace repair extends board life when pad damage is localized.

Lesson 2 • Flux, Solder, and Paste Selection

Compares flux types, solder alloys, and paste viscosities for phone board work. Material selection directly affects joint quality and pad preservation.

Lesson 3 • Soldering Station Setup and Calibration

Configures soldering iron, hot-air station, and microscope for micro-soldering work. Correct setup is the foundation of consistent, damage-free solder joints.

Lesson 4 • SMD Component Removal and Placement

Covers hot-air removal and precise placement of resistors, capacitors, and diodes. Accurate placement prevents bridging and maintains circuit function.

Lesson 1 • Multi-Fault Repair Strategy

Develops a prioritized repair sequence when a device presents multiple simultaneous faults. Efficient sequencing reduces labor time and repeat disassembly.

Lesson 2 • Advanced Power Fault Analysis

Uses thermal imaging and current injection to locate short circuits on the main board. Pinpoints faults invisible to standard multimeter probing.

Lesson 3 • Quality Control and Final Testing

Establishes a structured post-repair checklist covering all hardware and software functions. Thorough testing prevents callbacks and builds customer trust.

Lesson 4 • Face ID and Biometric Module Repair

Addresses structured-light and under-display biometric systems and their pairing constraints. Explains component-level repair limits imposed by security architecture.