Dell Latitude 7220EX Rugged Extreme Tablet Service Manual - Page 23

Updating BIOS on systems with BitLocker enabled, Updating your system BIOS using a USB flash drive

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9. Identify the latest BIOS file and click Download. 10. Select your preferred download method in the Please select your download method below window, click Download File. The File Download window appears. 11. Click Save to save the file on your computer. 12. Click Run to install the updated BIOS settings on your computer. Follow the instructions on the screen. Updating BIOS on systems with BitLocker enabled CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an unnecessary operating system reinstall. For more information about this subject, see Knowledge Article: https://www.dell.com/support/article/ sln153694 Updating your system BIOS using a USB flash drive About this task If the system cannot load into Windows but there is still a need to update the BIOS, download the BIOS file using another system and save it to a bootable USB Flash Drive. NOTE: You will need to use a bootable USB Flash drive. Please refer to the following article for further details: https:// www.dell.com/support/article/sln143196/ Steps 1. Download the BIOS update .EXE file to another system. 2. Copy the file e.g. O9010A12.EXE onto the bootable USB Flash drive. 3. Insert the USB Flash drive into the system that requires the BIOS update. 4. Restart the system and press F12 when the Dell Splash logo appears to display the One Time Boot Menu. 5. Using arrow keys, select USB Storage Device and click Return. 6. The system will boot to a Diag C:\> prompt. 7. Run the file by typing the full filename e.g. O9010A12.exe and press Return. 8. The BIOS Update Utility will load, follow the instructions on screen. Figure 1. DOS BIOS Update Screen System setup 23

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9.
Identify the latest BIOS file and click
Download
.
10.
Select your preferred download method in the
Please select your download method below
window, click
Download File
.
The
File Download
window appears.
11.
Click
Save
to save the file on your computer.
12.
Click
Run
to install the updated BIOS settings on your computer.
Follow the instructions on the screen.
Updating BIOS on systems with BitLocker enabled
CAUTION:
If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it will not
recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the system will ask for
this on each reboot. If the recovery key is not known this can result in data loss or an unnecessary operating system
reinstall. For more information about this subject, see Knowledge Article:
sln153694
Updating your system BIOS using a USB flash drive
About this task
If the system cannot load into Windows but there is still a need to update the BIOS, download the BIOS file using another system and save
it to a bootable USB Flash Drive.
NOTE:
You will need to use a bootable USB Flash drive. Please refer to the following article for further details:
https://
www.dell.com/support/article/sln143196/
Steps
1.
Download the BIOS update .EXE file to another system.
2.
Copy the file e.g. O9010A12.EXE onto the bootable USB Flash drive.
3.
Insert the USB Flash drive into the system that requires the BIOS update.
4.
Restart the system and press F12 when the Dell Splash logo appears to display the One Time Boot Menu.
5.
Using arrow keys, select
USB Storage Device
and click Return.
6.
The system will boot to a Diag C:\> prompt.
7.
Run the file by typing the full filename e.g. O9010A12.exe and press Return.
8.
The BIOS Update Utility will load, follow the instructions on screen.
Figure 1. DOS BIOS Update Screen
System setup
23