User Manuals: Huawei U8650-NFC Low-Range NFC Smartphone

User Manuals: Huawei U8650-NFC Low-Range NFC Smartphone

Manuals and User Guides for Huawei U8650-NFC Low-Range NFC Smartphone. We have 1 Huawei U8650-NFC Low-Range NFC Smartphone manual available for free PDF download: Maintenance Manual

Huawei U8650-NFC Maintenance Manual

Huawei U8650-NFC Maintenance Manual (62 pages)

Maintenance Manual Basic Version

Brand: Huawei | Category: Cell Phone | Size: 3 MB

Table of Contents

Table of Contents
3
1 Product Introduction

5
- Product Appearance
  5
- Product Specifications
  5
2 Maintenance Information Guide

7
3 Explosive View of Product

8
4 Location of Components on the Main Board

10
5 Software Upgrade

15
- Preparation for Upgrade
  15
- Upgrade Process
  15
- Force Download
  17
- Check the Firmware Version
  18
- Error Handling
  18
6 Maintenance Tools

19
7 Disassembly Procedure

21
8 Assembly Procedure

25
9 Trouble Shootings of Common Faults

29
- Principle Instruction
  29
- N Opower on
  30
  - High Current (DC Power Supply)
    30
  - Low Current (DC Power Supply)
    32
- Charge Failure
  34
- Sim Card Failure
  35
- Sd Card Failure
  36
- Vibration Failure
  37
- Display Failure
  38
- Touch Panel Failure
  39
- Camera Failure
  40
- Audio Malfunction
  41
  - No Ring Tone
    41
  - Receiver Failure
    42
  - Voice Transmitting Failure
    43
  - Earphone no Voice
    43
  - Earphone Can"T Transmit Voice
    44
- Wifi&Bt Failure
  45
- Fm Failure
  46
- Gps Failure
  47
- Nfc Failure
  48
- Proximity Failure
  49
- Rf Failure
  50
10 Weld Points Indicator Chart for Pcb and Bga Chip

58
11 Functional Test

60
- Keypad Introduction
  60
- MMI Test
  60
- Voice Call Test
  62

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