Dell Latitude 5401 - Updating BIOS on Systems with Bitlocker Enabled; Updating Your System BIOS Using a USB Flash Drive

Identifier GUID-B2316265-96B6-4EE5-A29E-8C01FC6E5710
Status Released
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: https://www.dell.com/support/article/sln153694
Identifier GUID-08844976-AE7C-4757-B3AD-E54CA0CCAA20
Status Released
Updating your system BIOS using a USB ash drive
If the system cannot load into Windows but there is still a need to update the BIOS, download the BIOS le 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/us/en/19/sln143196/
1 Download the BIOS update .EXE le to another system.
2 Copy the le 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 le by typing the full lename 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
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