Dell XPS 13 9370 XPS 13 Service Manual - Page 57

Flashing the BIOS, Flashing BIOS (USB key - screen replacement

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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 17. LED codes Diagnostic light codes Problem description 2,1 Processor failure 2,2 System board: BIOS or ROM (Read-Only Memory) failure 2,3 No memory or RAM (Random-Access Memory) detected 2,4 Memory or RAM (Random-Access Memory) failure 2,5 Invalid memory installed 2,6 System-board or chipset error 2,7 Display failure 3,1 Coin-cell battery failure 3,2 PCI, video card/chip failure 3,3 Recovery image not found 3,4 Recovery image found but invalid 3,5 Power-rail failure 3,6 System BIOS Flash incomplete 3,7 Management Engine (ME) error 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. Flashing the BIOS You may need to flash (update) the BIOS when an update is available or when you replace the system board. Follow these steps to flash the BIOS: 1. Turn on your computer. 2. Go to www.dell.com/support. 3. Click Product support, enter the Service Tag of your computer, and then click Submit. NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model. 4. Click Drivers & downloads > Find it myself. 5. Select the operating system installed on your computer. 6. Scroll down the page and expand BIOS. 7. Click Download to download the latest version of the BIOS for your computer. 8. After the download is complete, navigate to the folder where you saved the BIOS update file. 9. Double-click the BIOS update file icon and follow the instructions on the screen. Flashing BIOS (USB key) 1. Follow the procedure from step 1 to step 7 in "Flashing the BIOS" to download the latest BIOS setup program file. 2. Create a bootable USB drive. For more information see the knowledge base article SLN143196 at www.dell.com/support. Troubleshooting 57

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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 17. LED codes
Diagnostic light codes
Problem description
2,1
Processor failure
2,2
System board: BIOS or ROM (Read-Only Memory) failure
2,3
No memory or RAM (Random-Access Memory) detected
2,4
Memory or RAM (Random-Access Memory) failure
2,5
Invalid memory installed
2,6
System-board or chipset error
2,7
Display failure
3,1
Coin-cell battery failure
3,2
PCI, video card/chip failure
3,3
Recovery image not found
3,4
Recovery image found but invalid
3,5
Power-rail failure
3,6
System BIOS Flash incomplete
3,7
Management Engine (ME) error
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.
Flashing the BIOS
You may need to flash (update) the BIOS when an update is available or when you replace the system board.
Follow these steps to flash the BIOS:
1.
Turn on your computer.
2.
Go to
www.dell.com/support
.
3.
Click
Product support
, enter the Service Tag of your computer, and then click
Submit
.
NOTE:
If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model.
4.
Click
Drivers & downloads
>
Find it myself
.
5.
Select the operating system installed on your computer.
6.
Scroll down the page and expand
BIOS
.
7.
Click
Download
to download the latest version of the BIOS for your computer.
8.
After the download is complete, navigate to the folder where you saved the BIOS update file.
9.
Double-click the BIOS update file icon and follow the instructions on the screen.
Flashing BIOS (USB key)
1.
Follow the procedure from step 1 to step 7 in "
Flashing the BIOS
" to download the latest BIOS setup program file.
2.
Create a bootable USB drive. For more information see the knowledge base article
SLN143196
at
www.dell.com/support
.
Troubleshooting
57