TB4 DP not working, how to update BIOS?

Neobond

New member
I am testing the ER937-AI but ran into a couple of issues.

Both Thunderbolt 4 ports are not working to display a picture, although I do get power to the screen. (I tried multiple cables that I know should work).

I figured I would update the BIOS from FP8NS109 to FP8NS110 to see if that fixes it, but the Readme.txt is in Chinese so I do not know how to update the Aptio BIOS. There's no guidance on the Product page for this.

I am also downloading the 1Gb Driver pack @ 45kb/s from The Netherlands (4 Gbit ISP) which is estimated to complete over 2 hours in the hope that it includes an updated TB4 driver!

I uninstalled and reinstalled the TB4 driver (which is a Microsoft driver) still not working.

I also see there's an alert in Windows Security that Firmware protection is disabled and I am unable to get it enabled.

Screenshot 2025-11-04 085403.webp
 
Hi Neobond,
We have a solution to enable firmware protection function. Please download repair package and repair it follow included SOP.

Note:
ER936-AI also can be fixed with same package.
Enabling Firmware Protection through the EoM tool is irreversible.
 
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