Flea Power Release; Wi-Fi Power Cycle - Dell XPS 15 Service Manual

Table 20. Diagnostics
Light Pattern
2,1
2,2
2,3
2,4
2,5
2,6
2,7
3,1
3,2
3,3
3,4
The computer may emit a series of beeps during start-up if the errors or problems cannot be displayed. The repetitive beep codes help the
user troubleshoot problems with the computer.
Camera status light: Indicates whether the camera is in use.
• Solid white – Camera is in use.
• Off – Camera is not in use.
Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.
• Solid white – Caps Lock enabled.
• Off – Caps Lock disabled.
Identifier
Status

Flea power release

Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been
removed. The following procedure provides the instructions on how to conduct flea power release:
1 Turn off your computer.
2 Remove the base cover.
3 Press and hold the power button for 15 seconds to drain the flea power.
4 Replace the base cover.
5 Turn on your computer.
Identifier
Status

Wi-Fi power cycle

If your computer is unable to access the Internet due to Wi-Fi connectivity issues a Wi-Fi power cycle procedure may be performed. The
following procedure provides the instructions on how to conduct a Wi-Fi power cycle:
Problem description
CPU failure
System board: BIOS and ROM failure
No memory or RAM detected
Memory or RAM failure
Invalid memory installed
System board or chipset error
LCD failure
CMOS battery failure
PCI/video card failure
Recovery image not found
Recovery image found but invalid
GUID-BB99B5E4-3C94-4EAB-92E1-EC33EC6388AA
Released
GUID-7D2143EA-2C62-498E-97AF-DCEF3DA56624
Released
Troubleshooting 107