Dell Pro 14 Plus/Dell Pro 14 Plus 2-in-1 PB14250/PB14250 2-in-1 (Intel Core Ultra 200U Series/Intel Core 100U and 200U Series) Owner's Manual

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System-diagnostic lights

This section lists the system-diagnostic lights of your Dell Pro 14 Plus.

The following table shows different Service LED blinking patterns and associated problems. The diagnostic light codes consist of a two-digit number, and the digits are separated by a comma. The number stands for a blinking pattern; the first digit shows the number of blinks in amber color, and the second digit shows the number of blinks in white color. The Service LED blinks in the following manner:
  • The Service LED blinks the number of times equal to the value of the first digit and turns off with a short pause.
  • After that, the Service LED blinks the number of times equal to the value of the second digit.
  • The Service LED turns off again with a longer pause.
  • After the second pause, the blinking pattern will be repeated.
Table 1. Diagnostic light codesDiagnostic light codes for component issues/failure in the product.
Diagnostic light codes (Amber, White) Problem description Recommended solutions
1,1 TPM Detection Failure Replace the system board.
1,2 Unrecoverable SPI Flash Failure Replace the system board.
1,4 Hinge Cable OCP Replace LCM (cable and Panel)
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, coin cell) and drain flea power by pressing and holding down the power button.
1,7 Non-RPMC Flash on Boot Guard fused system Flash latest BIOS version. If the problem persists, replace the system board.
1,8 Chipset “Catastrophic Error” signal has tripped Replace the CPU.
2,1 CPU configuration or CPU failure Replace the CPU.
2,2 System board: BIOS or Read-Only Memory (ROM) failure Flash latest BIOS version. If the problem persists, replace the system board.
2,3 No memory, or Random-Access Memory (RAM) detected Reseat and swap memory modules among the slots. If the problem persists, replace the memory module.
2,4 Memory, or Random-Access Memory (RAM) failure Reseat and swap memory modules among the slots. If the problem persists, replace the memory module.
2,5 Invalid memory module Reseat and swap memory modules among the slots. If the problem persists, replace the memory module.
2,6 System board/Chipset Error Replace the system board.
2,7 LCD failure SBIOS message Replace the display.
3,1 CMOS battery failure Reset the CMOS battery connection. If the problem persists, replace the RTC battery.
3,2 PCI of Video card/chip failure Replace the system board.
3,3 Recovery image not found Replace the system board.
3,4 Recovery image found but invalid Replace the system board.
3,5 EC power-rail error Replace the system board.
3,6 Flash corruption detected by SBIOS Flash corruption is detected by SBIOS. If the problem persists, replace the system board.
3,7 Timeout waiting on ME to reply to HECI message Replace the system board.
4,1 Memory DIMM power rail failure Replace the system board.
4,2 CPU Power cable connection issue
  • Perform the PSU BIST Test, reseat the cable.
  • If this does not work, replace the system board, power supply or cabling.
4,4 LCD Power Rail Failure Replace motherboard

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