[NUC] How to Use UEFI Shell to Update Your NUC with Visual Bioses

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The UEFI Flash Bioses update utility allows you to update the Visual Bioses from the EFI Shell.

Note

Most NUCs that shipped in 2019 and later use the Aptio V* Bioses core and not the Visual Bioses. For those models, see Bioses Update and Recovery Instructions for NUCs with Aptio 5 Bioses

Please select boot devices

1. Download the UEFI Flash Bioses Update file (*.UEFI.zip). Example:

Available downloads

2. Double-click the *.UEFI.zip to extract its files.

Extract the files

3.Copy UefiFlash.efi and the .bio file to the bootable USB device.

4.Connect the USB drive to a port on the NUC.

5.Configure the Bioses of the target computer to boot to the EFI Shell:

a. Press F2 during start to enter Bioses setup.

b. Go to Advanced > Boot > Secure Boot.

c. Disable Secure Boot, if enabled.

d. Go to Advanced > Boot > Boot Configuration.

e. In the Boot Devices pane, enable Internal UEFI Shell.

f. Press> F10 to save changes and exit Bioses Setup.

6. Press F10 during start to open the Boot Menu.

7. Select UEFI: Built-in EFI Shell.

8. Change the current directory to the USB flash drive by entering the command fsX: where X is the drive number of the USB flash drive from the device mapping list.
Example: if your USB drive is fs3, then type fs3: and press Enter.

9. At the command prompt, type UefiFlash.efi XXX.bio, where XXX.bio is the filename of the .bio file and press Enter.

Update to this Bioses version

10. Press Y to begin the update.

11. Wait for the Bioses update to complete.

Flash update has completed successfully

12. The computer will restart when finished.

13. Set the Bioses back to original settings:

a. Restart the computer.

b. Press F2 during start to enter Bioses setup.

c. Go to Advanced > Boot > Boot Configuration.

d. In the Boot Devices pane, disable Internal UEFI Shell.

e. Go to Advanced > Boot > Secure Boot.

f. Enable Secure Boot, if it was originally enabled.

g. Press F10 to save changes and exit Bioses Setup.

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