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Gigabyte Titan Ridge Firmware update fails

Joined
Nov 13, 2012
Messages
65
Motherboard
Asrock Z390 Phantom Gaming 6
CPU
i9-9900K
Graphics
RX 5700 XT
Mac
MacBook Pro
Mobile Phone
iOS
I have the GC-TitanRidge on my Asrock board and it works fine with some minor nits under Windows and macOS with my LG Ultrafine. Gigabyte released a new firmware (B20.0320.1 from 2020/03/26) for the card and I tried to install it and was greeted with this error when starting the flash tool:
tb3_flash.png


Error: 0x224 SDK_NATIVE_MODE_MISMATCH Native/BIOS-Assisted mode mismatch between the controller and the image file

The strange thing is that previous firmware updates worked fine.

My Bios Settings:
tb3_bios.jpeg


Please note that I cannot disable "Windows 10 Thunderbolt support". When I try it hangs forever (including turning the screen black cause it is plugged into the TB card) until I decide to turn the computer off. When returning to bios after reset it is still enabled. It was disabled when I bought the GC card but it seems there is no going back.

The TB3 device:
tb3_driver.png
 
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