Advance Mobile Repairing Course

Lesson 1 • Smartphone Architecture Overview

Covers internal layout of Android and iOS devices, board topology, and component zones. Builds the mental map needed for all subsequent diagnostic work.

Lesson 2 • Essential Tools and Their Uses

Identifies screwdrivers, spudgers, tweezers, and opening picks by type and application. Correct tool selection reduces damage and repair time.

Lesson 3 • Reading Schematics and Service Manuals

Introduces schematic symbols, net names, and block diagrams used in manufacturer service documentation. Enables students to locate components and signal paths independently.

Lesson 4 • Workshop Setup and ESD Safety

Defines electrostatic discharge risks and proper grounding protocols for a repair bench. Directly prevents component damage during hands-on labs.

Lesson 1 • DC Power Supply Operation

Explains current-limiting, voltage setting, and ammeter reading during boot and fault conditions. Replaces battery safely for bench testing without risk of fire.

Lesson 2 • Using Board View and Schematic Software

Navigates ZXW, Vipera, and similar tools to cross-reference board locations with schematic nets. Integrates digital tools into a structured diagnostic workflow.

Lesson 3 • Multimeter Mastery for Mobile Repair

Covers DC/AC voltage, resistance, continuity, and diode mode measurements on mobile circuits. Accurate meter use underpins every electrical fault diagnosis.

Lesson 4 • Thermal Imaging and Infrared Analysis

Uses thermal cameras to locate hot spots caused by shorts or failing components. Speeds fault isolation before any soldering is attempted.

Lesson 1 • Hot-Air Rework Station Operation

Explains airflow, temperature profiles, and nozzle selection for chip removal and placement. Enables safe removal of shielded ICs and large connectors.

Lesson 2 • BGA Reballing and Replacement

Covers stencil selection, ball placement, and reflow profiles for BGA ICs. Critical skill for CPU, NAND, and PMIC replacement on advanced boards.

Lesson 3 • Hand Soldering Techniques

Teaches drag soldering, point-to-point joints, and wire attachment on SMD pads. Foundational skill applied in connector replacement and component repair.

Lesson 4 • Soldering Station Setup and Calibration

Covers iron tip selection, temperature calibration, and flux types for mobile work. Proper setup prevents pad and component damage throughout all rework tasks.

Lesson 1 • Dead Device Recovery Workflow

Applies a structured triage sequence from battery check through PMIC to CPU power-on. Students resolve dead-device cases using a repeatable decision tree.

Lesson 2 • Charging Circuit Diagnosis

Traces charge path from USB port through charge IC to battery, measuring voltage at each stage. Isolates faults in charge ICs, filters, and protection circuits.

Lesson 3 • PMIC and Power Rail Analysis

Maps PMIC output rails against schematic specifications and measures enable signals. Identifies failed rails causing no-boot or partial-boot conditions.

Lesson 4 • Battery Technology and Testing

Covers Li-ion cell chemistry, capacity ratings, and safe testing procedures. Accurate battery assessment prevents misdiagnosis of power faults.

Lesson 1 • Ambient Light and Proximity Sensors

Tests ALS and proximity sensor circuits for auto-brightness and call-screen faults. Ensures full sensor restoration after display assembly replacement.

Lesson 2 • Display Fault Diagnosis

Identifies no-display, lines, flickering, and backlight faults using schematic and measurement. Distinguishes panel failure from driver IC and flex cable faults.

Lesson 3 • In-Display and Side Fingerprint Sensors

Diagnoses optical and ultrasonic in-display sensors and side-mounted capacitive sensors. Addresses enrolment failure and hardware fault differentiation.

Lesson 4 • Display Technology Comparison

Differentiates LCD, AMOLED, and LTPO panel characteristics and failure modes. Correct panel identification prevents ordering wrong replacement parts.

Lesson 1 • Cellular RF and Baseband Diagnosis

Analyses baseband CPU power, RF transceiver, and PA module for no-signal faults. Covers SIM circuit diagnosis and antenna tuner replacement.

Lesson 2 • Audio System Diagnosis

Traces earpiece, loudspeaker, and microphone circuits from codec to transducer. Isolates faults in audio IC, filters, and flex connectors.

Lesson 3 • Wi-Fi and Bluetooth Circuit Repair

Diagnoses combo Wi-Fi/BT IC power, clock, and antenna path faults. Restores wireless connectivity by isolating IC, filter, and antenna switch failures.

Lesson 4 • USB and Charging Port Repair

Tests USB-C and Lightning port data, power, and CC pin functionality. Covers port replacement and board-level charge path restoration.

Lesson 1 • iCloud and Google Account Bypass

Explains legitimate account removal workflows for devices with forgotten credentials. Covers MDM removal and factory reset protection bypass for authorised repairs.

Lesson 2 • Android Flashing Tools and Methods

Uses Odin, SP Flash Tool, and Qualcomm QFIL to flash stock firmware on major platforms. Covers EDL mode entry and partition-selective flashing.

Lesson 3 • iOS Restore and DFU Recovery

Performs iTunes/Finder restore, DFU mode entry, and partial restore to preserve data. Addresses restore errors and baseband mismatch scenarios.

Lesson 4 • Firmware and OS Fundamentals

Explains partition structure, bootloader stages, and firmware package components for Android and iOS. Provides the conceptual base for all flashing and recovery operations.

Lesson 1 • CPU and Application Processor Faults

Diagnoses AP power sequencing, clock, and reset signal failures causing no-boot conditions. Covers reballing and replacement of application processors on stacked packages.

Lesson 2 • RAM and PoP Package Diagnosis

Identifies LPDDR RAM faults in PoP configurations and performs reflow or replacement. Distinguishes RAM failure from CPU and storage faults by symptom pattern.

Lesson 3 • Multi-Layer Board Fault Isolation

Uses via resistance, layer mapping, and signal injection to find internal trace breaks. Enables repair of faults invisible to surface inspection.

Lesson 4 • Complex Case Studies and Repair Workflow

Applies all diagnostic skills to multi-symptom real-world repair cases under time constraints. Develops professional decision-making and escalation judgment.