Most Dell systems built after 2012 have this capability and you can conrm 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 le system (key does not have to be bootable)
• BIOS executable le 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 ash the BIOS
Perform the following steps to execute the BIOS update ash process from the F12 menu:
CAUTION: Do not power o the system during the BIOS update process. Powering o the system could make the system fail to
boot.
1 From a power o state, insert the USB key where you copied the ash into a USB port of the system .
2 Power on the system and press the F12 key to access the One-Time Boot Menu, Highlight BIOS Flash Update using the arrow keys
then press
Enter.
3 The Bios ash menu will open then click the browse button.
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System setup
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