Dell Latitude 7290 Owner's Manual page 70

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.
1 From a power off state, insert the USB key where you copied the flash 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 flash menu will open then click the browse button.
4 The E5450A14.exe file is shown as an example in the following screenshot. The actual file name may vary.
70 System setup