Huawei E5331 - Default Chapter; Table of Contents

E5331 Maintenance Manual Basic Version V1.0
Internal
2012-4-21
Huawei confidential. No spreading without permission.
Page 3 of 57
Contents
1 PRODUCT INTRODUCTION ............................................................................................................................................ 5
1.1 PRODUCT APPEARANCE ................................................................................................................................................ 5
1.2 HARDWARE SPECIFICATIONS ....................................................................................................................................... 5
2 MAINTENANCE INSTRUCTIONS ................................................................................................................................... 7
2.1 DOCUMENT APPLICATION ............................................................................................................................................ 7
2.2 MAINTENANCE PRECAUTIONS ..................................................................................................................................... 7
2.3 MAINTENANCE INFORMATION DIRECTION .................................................................................................................. 7
3 EXPLODED VIEW OF THE WHOLE UNIT .................................................................................................................... 8
4 LOCATION OF COMPONENTS ON THE MAIN BOARD ............................................................................................ 9
5 SOFTWARE UPGRADE .................................................................................................................................................. 12
5.1 PREPARATIONS BEFORE UPGRADE ............................................................................................................................ 12
5.2 HARDWARE CONNECTION ........................................................................................................................................... 12
5.3 CLIENT SOFTWARE INSTALLATION ............................................................................................................................ 12
5.4 UPDATE PROCEDURE .................................................................................................................................................. 19
5.4.1 Normal Upgrade ............................................................................................................................................ 20
5.5 CHECK THE SOFTWARE VERSION .............................................................................................................................. 22
5.6 EXCEPTION HANDLING ............................................................................................................................................... 22
6 MAINTENANCE TOOLS ................................................................................................................................................. 24
7 DISASSEMBLY PROCEDURE ....................................................................................................................................... 26
8 ASSEMBLY PROCEDURE ............................................................................................................................................. 28
9 TROUBLESHOOTING FOR COMMON FAULTS ........................................................................................................ 30
9.1 PRINCIPLE INSTRUCTION ........................................................................................................................................... 30
9.2 NO POWER ON ............................................................................................................................................................. 31
9.2.1 No Power On—High Current (DC Power Supply) ...................................................................................... 31
9.2.2 No Power On—Small Current (DC Power Supply) ..................................................................................... 34
9.3 CHARGE FAILURE ....................................................................................................................................................... 36
9.4 SIM CARD FAILURE .................................................................................................................................................... 37
9.5 DATA COMMUNICATION FAILURE .............................................................................................................................. 38
9.6 DISPLAY FAILURE ........................................................................................................................................................ 40
9.7 WLAN FAILURE ......................................................................................................................................................... 42
9.8 RF FAILURE................................................................................................................................................................. 44