Workstation guidelines ..................................................................................................................................... 32
Electrostatic discharge information .................................................................................................................................... 34
Generating static electricity .............................................................................................................................  34
Preventing electrostatic damage to equipment ........................................................................................... 35
Personal grounding methods and equipment .............................................................................................. 35
Grounding the work area .................................................................................................................................. 35
Recommended materials and equipment ..................................................................................................... 36
Packaging and transporting guidelines .............................................................................................................................. 36
5  Removal and replacement procedures for Customer Self-Repair parts ....................................................................................... 39
Component replacement procedures ................................................................................................................................. 40
Preparation for disassembly ...........................................................................................................................  40
Service cover ......................................................................................................................................................  40
Battery ................................................................................................................................................................. 41
Solid-state drives 3 and 4 ................................................................................................................................ 42
Hard drive ...........................................................................................................................................................  44
WLAN module ....................................................................................................................................................  46
WWAN module ................................................................................................................................................... 47
Solid-state drive 2 ............................................................................................................................................. 49
Memory modules 2 and 4 ................................................................................................................................  51
Keyboard ............................................................................................................................................................. 54
Memory modules 1 and 3 ................................................................................................................................  58
Solid-state drive 1 ............................................................................................................................................. 62
6  Removal and replacement procedures for authorized service provider parts ............................................................................  65
Component replacement procedures ................................................................................................................................. 66
Preparation for disassembly ...........................................................................................................................  66
Bottom case .......................................................................................................................................................  66
SD card board cable ..........................................................................................................................................  68
SD card board ..................................................................................................................................................... 69
Fingerprint reader module cable ....................................................................................................................  70
Fingerprint reader module ............................................................................................................................... 71
Hard drive cable ................................................................................................................................................. 72
Touchpad cable .................................................................................................................................................. 73
Touchpad ............................................................................................................................................................  74
NFC module cable .............................................................................................................................................. 75
NFC module ........................................................................................................................................................  76
Card reader board .............................................................................................................................................  78
Fan/heat sink assembly .................................................................................................................................... 79
43.9 cm (17.3 in ) display assembly ............................................................................................................... 83
Beam connector ................................................................................................................................................. 85
viii ENWW