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Huawei MediaPad 7 Lite S7-931w User Manual

Huawei MediaPad 7 Lite S7-931w
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MediaPad 7 Lite Maintenance Manual
INTERNAL
2012-10-08
Huawei Confidential
Page 1 of 82
MediaPad 7 Lite Maintenance Manual
V1.0
Prepared by
Documentation team of the Product
Development Unit
Date
Reviewed by
Technical support platform of the
Product Development Unit
Date
Approved by
Service representative platform of
the Product Development Unit
Date
Huawei Technologies Co., Ltd.
All rights reserved
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Huawei MediaPad 7 Lite S7-931w Specifications

General IconGeneral
Resolution1024 x 600 pixels
RAM1 GB
Internal Storage8 GB
Expandable StoragemicroSD, up to 32 GB
Rear Camera3.15 MP
Front Camera0.3 MP
Battery4100 mAh
Operating SystemAndroid 4.1 (Jelly Bean)
Weight350 g
Display7.0 inches
ConnectivityWi-Fi 802.11 b/g/n, Bluetooth 3.0

Summary

Product Overview

Appearance

Visual description of the MediaPad 7 Lite hardware.

Product Models

Details on different functional variants of the MediaPad 7 Lite.

Product Features

Key specifications and capabilities of the MediaPad 7 Lite device.

Maintenance Instructions

Applicable Scope

Defines the intended audience and purpose of the maintenance manual.

Precautions

Essential safety and operational guidelines for maintenance procedures.

Obtaining Product and Maintenance Information

Information on how to access additional product and maintenance resources.

Explosive View Drawing

PCBA Components

Components on the PCBA

Identification and location of components on the Printed Circuit Board Assembly.

BOM List

Bill of Materials detailing the parts used in the device assembly.

Software Upgrade

Upgrade Environment

Required hardware and software for performing software upgrades.

Upgrade Using a microSD Card

Step-by-step guide for upgrading the device via microSD card.

Upgrading Using the USB

Entering USB Upgrade Mode

Procedure to put the device into USB upgrade mode.

Installing the Driver

Instructions for installing necessary drivers for USB communication.

Batch Firmware Upgrade

Maintenance Tools

Disassembly Procedure

Troubleshooting for Common Failures

Principle

Underlying principles of device operation relevant to troubleshooting.

Startup Failure Due to High Current

Troubleshooting startup failures caused by excessive current draw.

Startup Failure Due to Low Current

Troubleshooting startup failures caused by insufficient current.

Charge Failure

Diagnosing and resolving issues related to the device's charging system.

Failure to Identify the SIM Card

Troubleshooting problems with SIM card detection and recognition.

Failure to Identify the MicroSD Card

Troubleshooting problems with MicroSD card detection and recognition.

Display Failure

Diagnosing and resolving issues related to the device's screen display.

Touchscreen Failure

Troubleshooting problems with the touch input functionality.

Speaker Failure

Diagnosing and resolving issues with the device's audio output.

Headset Failure

Troubleshooting issues related to the headset functionality.

Network Camera Failure

Diagnosing and resolving problems with the front and rear cameras.

Vibration Failure

Troubleshooting issues with the device's vibration motor.

Wi-Fi Failure

Diagnosing and resolving problems with Wi-Fi connectivity.

Bluetooth Failure

Troubleshooting issues with Bluetooth connectivity.

GPS Failure

Diagnosing and resolving problems with GPS functionality.

Position of the SH1931UT in MediaPad 7 Lite

Locating the SH1931UT component on the device's PCB.

Solder Points on the PCB and BGA Chip

Function Tests

Preparations

Required items and setup before performing function tests.

Delivery Software (Customized Software) Entering the MMI Test Mode

Steps to access the MMI Test mode using delivery software.

Production Software Entering the MMI Test Mode

Steps to access the MMI Test mode using production software.

MMI Test

Procedure for conducting MMI (Man Machine Interface) tests.

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