Maintenance and Service Guide

Packaging and transporting guidelines .............................................................................................................. 33
5 Removal and replacement procedures for Customer Self-Repair parts ............................................................. 34
Component replacement procedures .................................................................................................................. 34
Preparation for disassembly ............................................................................................................. 34
Bottom cover ..................................................................................................................................... 34
Solid-state drive (SSD) ...................................................................................................................... 36
Memory modules ............................................................................................................................... 37
WLAN/Bluetooth combo card ............................................................................................................ 38
WWAN module ................................................................................................................................... 40
Keyboard ........................................................................................................................................... 42
6 Removal and replacement procedures for authorized service provider parts .................................................... 45
Component replacement procedures .................................................................................................................. 45
Battery ............................................................................................................................................... 46
Heat sink assembly ........................................................................................................................... 48
RTC battery ........................................................................................................................................ 51
USB board .......................................................................................................................................... 52
RJ-45 board with bracket .................................................................................................................. 53
Power button board .......................................................................................................................... 54
Speaker assembly ............................................................................................................................. 55
Touchpad ........................................................................................................................................... 56
Touchpad button board ..................................................................................................................... 58
NFC module ....................................................................................................................................... 59
Smart card reader .............................................................................................................................. 60
Fan ..................................................................................................................................................... 61
System board .................................................................................................................................... 63
Fingerprint reader assembly ............................................................................................................. 66
Display assembly ............................................................................................................................... 67
Top cover ........................................................................................................................................... 77
7 Interpreting system validation diagnostic front panel LEDs and audible codes ................................................. 78
8 Troubleshooting guide ................................................................................................................................. 80
Resources ............................................................................................................................................................. 81
General troubleshooting steps ............................................................................................................................ 81
Identify the issue ............................................................................................................................... 82
1. Understand the issue .................................................................................................. 82
Boot up sequence ......................................................................................... 82
Failure classication ..................................................................................... 82
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