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General| Brand | LG |
|---|---|
| Model | LG-H815 |
| Category | Cell Phone |
| Language | English |
Describes the manual's purpose and scope, covering repair and feature download.
Covers security, repair precautions, and ESD handling guidelines for safe servicing.
Details the supported frequency bands for WCDMA, EGSM, GSM, and LTE.
Lists key hardware specifications including size, weight, battery, chipset, LCD, and cameras.
Outlines software features like RSSI levels, key volume, audio volume, and phone book capabilities.
Troubleshooting guide for the XO circuit, focusing on frequency output checks.
Procedure for checking transceiver DC power supply, focusing on specific test points.
Guides for troubleshooting GSM Rx and Tx signal paths, including component checks.
Steps for troubleshooting WCDMA Rx and Tx signal paths, covering various bands.
Procedures for troubleshooting LTE Rx and Tx signal paths across multiple bands.
Troubleshooting steps for power-related issues, including voltage and component checks.
Guide for diagnosing and resolving main display issues, checking connector and voltages.
Steps to troubleshoot main camera failures, checking connector, voltage, and MCLK.
Covers troubleshooting for speaker, receiver, and microphone issues.
Guide for checking FM radio signal and components, including physical damage.
Provides an overview of the main chipset, memory, power, and peripheral connections.
Details the RF front-end components and their connections for various bands.
Illustrates the power distribution and management circuits, including PMIC and regulators.
Shows the block diagrams for Accelerometer, Gyroscope, Compass, Pressure, and Proximity sensors.
Visual guide to component placement on the main board's top side.
Visual guide to component placement on the main board's bottom side.
Accessing device tests via shortcut key and selecting menus.
Explains auto and manual test item execution and continuous information display.
Guides for setting up USB COM ports for device communication.
Instructions for connecting the device using a USB download cable.
Details the necessary cables and connections for calibration procedures.
Configuration steps for using the flash tool for download and settings.
Step-by-step guide for removing screws during disassembly.
Instructions for safely removing the device's rear cover.
Procedure for removing the main printed circuit board.
Final steps for fully disassembling the device components.
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