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The following table shows different power and battery-status light patterns and associated problems.
Blinking
Problem description
Pattern
1
1
TPM detection failure
1
2
Unrecoverable SPI flash failure
1
3
Short in hinge cable tripped OCP1
1
4
Short in hinge cable tripped OCP2
1
5
EC unable to program i-Fuse
1
6
Generic catch-all for ungraceful EC
code flow errors
2
1
Processor failure
2
2
System Board failure (included BIOS
corruption or ROM error)
2
3
No Memory / RAM detected
2
4
Memory / RAM failure
2
5
Invalid memory installed
2
6
System board / Chipset Error
2
7
LCD failure (SBIOS message)
2
8
LCD failure (EC detection of power rail
failure)
3
1
CMOS battery failure
3
2
PCI or Video card/chip failure
3
3
BIOS recovery image not found
3
4
BIOS recovery image found but invalid
3
5
Power rail failure
3
6
Flash corruption detected by SBIOS.
3
7
Timeout waiting on ME to reply to
HECI message.
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.
82
Troubleshooting
Suggested resolution
Replace the system board.
Replace the system board.
Check if the display cable (EDP) is seated properly or pinched at the
hinges. If problem persists, replace either display cable (EDP) or display
assembly (LCD).
Check if the display cable (EDP) is seated properly or pinched at the
hinges. If problem persists, replace either display cable (EDP) or display
assembly (LCD)
Replace the system board.
Disconnect all power source (AC, battery, coin cell) and drain flea power
by pressing & holding down power button.
Run the Intel CPU diagnostics tools. If problem persists, replace the
system board.
Flash latest BIOS version. If problem persists, replace the system board.
Confirm that the memory module is installed properly. If problem
persists, replace the memory module.
Reset and swap memory modules amongst the slots. If problem persists,
replace the memory module.
Reset and swap memory modules amongst the slots. If problem persists,
replace the memory module.
Replace the system board.
Replace the LCD module.
Replace the system board.
Reset the CMOS battery connection. If problem persists, replace the
RTC battery.
Replace the system board.
Flash latest BIOS version. If problem persists, replace the system board.
Flash latest BIOS version. If problem persists, replace the system board.
Replace the system board.
Replace the system board.
Replace the system board.
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