Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12
One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the
BIOS supports this BIOS update option.
NOTE:
Only computers 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 need the following:
●
USB drive 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 drive
●
AC power adapter that is connected to the computer
●
Functional computer battery to flash the BIOS
Perform the following steps to perform the BIOS update flash process from the F12 menu:
CAUTION:
Do not turn off the computer during the BIOS update process. The computer may not boot if you turn
off your computer.
Steps
1. From a turn off state, insert the USB drive where you copied the flash into a USB port of the computer.
2. Turn on the computer and press F12 to access the One-Time Boot Menu, select BIOS Update using the mouse or arrow keys
then press Enter.
The flash BIOS menu is displayed.
3. Click
Flash from file
.
4. Select external USB device.
5. Select the file and double-click the flash target file, and then click
Submit
.
6. Click
Update BIOS
. The computer restarts to flash the BIOS.
7. The computer will restart after the BIOS update is completed.
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System setup
