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•
Power adapter is connected and the battery is fully charged.
•
Computer is running on battery and the battery has more than 5 percent charge.
•
Computer is in sleep state, hibernation, or turned off.
The power and battery-status light blinks amber along with beep codes indicating 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.
The following table shows different power and battery-status light patterns and associated problems.
Table 4. LED codes
Diagnostic light codes
2,1
2,2
2,3
2,4
2,5
2,6
2,7
3,1
3,2
3,3
3,4
3,5
3,6
3,7
Camera status light: Indicates whether the camera is in use.
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Solid white — Camera is in use.
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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.
Flashing BIOS (USB key)
1
Follow the procedure from step 1 to step 7 in
2
Create a bootable USB drive. For more information see the knowledge base article
3
Copy the BIOS setup program file to the bootable USB drive.
4
Connect the bootable USB drive to the computer that needs the BIOS update.
5
Restart the computer and press F12 when the Dell logo is displayed on the screen.
6
Boot to the USB drive from the One Time Boot Menu.
7
Type the BIOS setup program filename and press Enter.
8
The BIOS Update Utility appears. Follow the instructions on the screen to complete the BIOS update.
Problem description
Processor failure
System board: BIOS or ROM (Read-Only Memory) failure
No memory or RAM (Random-Access Memory) detected
Memory or RAM (Random-Access Memory) failure
Invalid memory installed
System-board or chipset error
Display failure
Coin-cell battery failure
PCI, video card/chip failure
Recovery image not found
Recovery image found but invalid
Power-rail failure
System BIOS Flash incomplete
Management Engine (ME) error
"Flashing the
BIOS" to download the latest BIOS setup program file.
SLN143196
at www.dell.com/support.
Troubleshooting
81
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