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Latitude 5350/Latitude 5350 2-in-1 Owner's Manual

System-diagnostic lights

This section lists the system-diagnostic lights of your Latitude 5350/Latitude 5350 2-in-1.

Power and battery-status light

The power and battery status light indicates the power and battery status of the computer. These are the power states:

Solid white: Power adapter is connected and the battery is charging.

Sold amber: Battery charge is low or critical.

Off: Battery is fully charged.
  • Power adapter is connected, and the battery is fully charged.
  • Computer is running on battery, and the battery has more than 5% charge.
  • Computer is in sleep state, hibernation, or turned off.

The power and battery-status light may blink amber or white according to pre-defined "beep codes" indicating various failures.

For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause. This 2,3 pattern continues until the computer is turned off, indicating no memory or RAM is detected.

Table 1. System-diagnostic lightsThe following table provides the system-diagnostic lights of your Latitude 5350/Latitude 5350 2-in-1.
Blinking pattern Problem description
Amber White
1 1 TPM detection failure
1 2 Unrecoverable SPI Flash Failure
1 5 EC unable to program i-Fuse
1 6 Generic catch-all for ungraceful EC code flow errors
2 1 CPU failure
2 2 System board failure (included BIOS corruption or ROM error)
2 3 No memory or RAM detected
2 4 Memory or RAM failure
2 5 Invalid memory installed
2 6 System board or 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 or 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 is detected by SBIOS.
3 7 Timeout waiting on ME to reply to HECI message.
NOTE:Blinking 3-3-3 LEDs on Lock LED (Caps-Lock or Num-Lock), Power button LED (without Fingerprint reader), and Diagnostic LED indicates failure to provide input during LCD panel test on Dell SupportAssist Pre-boot System Performance Check diagnostics.

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