The following table shows different power and battery-status light patterns and associated problems.
Blinking Pattern Problem description Suggested resolution
1 1 TPM detection failure Replace the system board.
1 2 Unrecoverable SPI flash failure Replace the system board.
1 5 EC unable to program i-Fuse Replace the system board.
1 6 Generic catch-all for ungraceful
EC code flow errors
Disconnect all power source
(AC, battery, coin cell)
and drain flea power by
pressing & holding down
power button.
2 1 CPU failure Run the Intel CPU
diagnostics tools. If problem
persists, replace the system
board.
2 2 System Board failure (included
BIOS corruption or ROM error)
Flash latest BIOS version.
If problem persists, replace
the system board.
2 3 No Memory / RAM detected Memory is integrated,
replace the system board
2 4 Memory / RAM failure Memory is integrated,
replace the system board
2 5 Invalid memory installed Memory is integrated,
replace the system board
2 6 System board / Chipset Error Replace the system board.
2 7 LCD failure (SBIOS message) Replace the LCD module.
2 8 LCD failure (EC detection of
power rail failure)
Replace the system board.
3 1 CMOS battery failure Reset the CMOS battery
connection. If problem
persists, replace the RTC
battery.
3 2 PCI or Video card/chip failure Replace the system board.
3 3 BIOS recovery image not found Flash latest BIOS version.
If problem persists, replace
the system board.
3 4 BIOS recovery image found but
invalid
Flash latest BIOS version.
If problem persists, replace
the system board.
3 5 Power rail failure Replace the system board.
3 6 Flash corruption detected by
SBIOS.
Replace the system board.
3 7 Timeout waiting on ME to reply
to HECI message.
Replace the system board.
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.
Troubleshooting
95
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