Updating your system BIOS using a BIOS update .exe file copied to a
FAT32 USB key and booting from the F12 one time boot menu.
BIOS Update
You can run the BIOS update file from
Windows using a bootable USB key or you
can also update the BIOS from the F12 One-Time boot menu on the system.
Most Dell systems built after 2012 have this capability and you can
confirm by booting your system to the F12 One-Time Boot Menu to see
if
BIOS FLASH UPDATE
is listed as a boot option for your
system. If the option is listed, then the BIOS supports this BIOS
update option.
NOTE:Only systems with
BIOS Flash Update
option in the F12
One-Time Boot Menu can use this function.
Updating from the One-Time Boot Menu
To update your BIOS from the F12 One-Time boot menu, you will need:
USB key formatted to the FAT32 file system (key
does not have to be bootable)
BIOS
executable file that you downloaded from the Dell Support website
and copied to the root of the USB key
AC
power adapter connected to the system
Functional system battery
to flash the BIOS
Perform the following steps to execute the BIOS update flash process from
the F12 menu:
CAUTION:Do not power off the system during the BIOS update process.
Powering off the system could make the system fail to boot.
From a power off state, insert the USB key where you copied the
flash into a USB port of the system
.
Power on the system and press the F12 key to access the One-Time
Boot Menu, Highlight BIOS Update using the mouse or arrow keys then
press Enter.
The Bios flash menu will open then click the Flash from file.
Select external USB device
Once the file is selected, Double click the flash target file, then press submit .
Click the Update BIOS then system will reboot to flash the BIOS.
Once complete, the system will reboot and the BIOS update process
is completed.
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