Dell OptiPlex 5055 A Series Small Form Factor OptiPlex 5055 Small Form Factor - Page 58

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

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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 re-install. For more information on this subject, see Knowledge Article: http://www.dell.com/support/article/sln153694 Updating your system BIOS using a USB flash drive 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: http:// www.dell.com/support/article/sln143196 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 4. DOS BIOS Update Screen Updating the Dell BIOS in Linux and Ubuntu environments If you want to update the system BIOS in a Linux environment such as Ubuntu, see http://www.dell.com/support/article/sln171755. 58 System setup

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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 re-install. For more information on
this subject, see Knowledge Article:
Updating your system BIOS using a USB
flash
drive
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:
http://
www.dell.com/support/article/sln143196
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 4. DOS BIOS Update Screen
Updating the Dell BIOS in Linux and Ubuntu
environments
If you want to update the system BIOS in a Linux environment such as Ubuntu, see
.
58
System setup