'''<span style="color: #FF0000">Important:</ span>'''<br / > * BIOS update recommended in case the system is unstable, or required fixes have been released. * Incorrect BIOS update has a risk for system brick. * Check for latest BIOS version available [[Fitlet: BIOS ROM Files|fitlet BIOS ROM Files]] and compare to [[Fitlet BIOS guide#Main|BIOS Version] ] on your fitlet.
== Preparing the USB Flash Drive with BIOS Updater == # Connect your USB Flash Drive to your computer and format it using ''' FAT32'''. # Download and extract '''[http:/ /fit-pc.com/download/fitlet/bios/EFI_Updater_Package.zip Bios Updater package]''' .<p>The package contains the following files:</ p> #:''AfuEfix64.efi'' #:''Flash.nsh'' #:''Shellx64.efi'' # Copy the extracted files to the formatted USB Flash Drive. # Download the '''[[fitlet: BIOS ROM Files|BIOS binary file]]'''. # Copy the flt.rom file to the root directory on the USB Flash Drive.
== Updating BIOS ==# Connect the prepared USB flash device to the fitlet and boot.# Press the '''DEL''' key during boot to enter BIOS menu.# Under Save & Exit tab, select the option ''' “Launch EFI Shell from filesystem device”'''# When the system enters the UEFI mode, type the command: ''flash flt'' and press Enter. # The BIOS flashing process will start.< p>'''Note:''' At the start of the process, the system will hang for 1 minute. This is expected behavior. Please, don’t interrupt it .</p># When the process ends and the prompt line appears, type the command : ''reset'' and press Enter. # Press the '''DEL''' key during the restart and enter the BIOS menu. # Under '''Save & Exit''' tab, select the option '''“Restore Defaults”''' and after that '''“Save Changes and Reset”'''.