Lithium-ion battery precautions............................................................................................................................... 30
Removing the battery.................................................................................................................................................31
Installing the battery...................................................................................................................................................31
IO board.............................................................................................................................................................................32
Removing the IO board............................................................................................................................................. 32
Installing the IO board................................................................................................................................................34
Speakers............................................................................................................................................................................36
Removing the speakers.............................................................................................................................................36
Installing the speakers................................................................................................................................................37
Coin-cell battery...............................................................................................................................................................38
Removing the coin cell battery.................................................................................................................................38
Installing the coin cell battery...................................................................................................................................39
Power button with ngerprint reader............................................................................................................................39
Removing the power button with ngerprint reader.............................................................................................40
Installing the power button with ngerprint reader................................................................................................41
Display assembly............................................................................................................................................................... 41
Removing the display assembly................................................................................................................................42
Installing the display assembly..................................................................................................................................43
System board................................................................................................................................................................... 45
Removing the system board.....................................................................................................................................45
Installing the system board....................................................................................................................................... 47
Palm-rest and keyboard assembly................................................................................................................................. 49
Removing the palmrest and keyboard assembly....................................................................................................49
Installing the palm-rest and keyboard assembly.................................................................................................... 50
4 Troubleshooting........................................................................................................................................... 52
Enhanced Pre-Boot System Assessment — ePSA diagnostics................................................................................52
Running the ePSA Diagnostics.................................................................................................................................52
System diagnostic lights................................................................................................................................................. 52
Diagnostic error messages..............................................................................................................................................53
System error messages...................................................................................................................................................56
Real Time Clock reset......................................................................................................................................................57
Flashing the BIOS.............................................................................................................................................................57
Flashing the BIOS from the F12 One-Time boot menu............................................................................................... 58
Flashing BIOS (USB key)................................................................................................................................................ 60
Wi-Fi power cycle............................................................................................................................................................. 61
Flea power release............................................................................................................................................................61
5 Getting help.................................................................................................................................................62
Contacting Dell.................................................................................................................................................................62
4
Contents