Fit-PC4 BIOS Update

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* BIOS update recommended in case the system is unstable, or required fixes have been released.
* Incorrect BIOS update has a risk for system brick, therefore follow the guide step-by-step.
  1. Format the USB Flash Device (UFD) to FAT32 file system
  2. Download and extract the BIOS Updater Package
    The package contains the following files:
  3. Copy the EFI folder with all the files to the UFD
  4. Download and extract the fit-PC4 BIOS file
  5. Copy the BIOS file to the \EFI\BOOT\ directory on the UFD
  6. Connect the UFD to the target unit
  7. Power up the target unit
  8. Enter the BIOS Menu by pressing the F2 key during the boot
  9. Browse to the Main -> Boot Features menu
  10. Set UEFI Boot to Enabled and Legacy Boot to Disabled
  11. Press the F10 key and Enter to save and exit
  12. Press the F5 key during the boot until the One Time Boot menu appears
  13. Choose the USB HDD boot option.
  14. The system will boot to the EFI Shell, and after 4 seconds the automatic flash process will start.
  15. At the end of the flashing process, the unit will shutdown automatically
  16. Remove the UFD
  17. Boot the unit