x17 R1, keyboard stopped working, #7

Hi,

I have exactly the same issue with the same system x17 R1. the same keys just working on Windows. When I go to bios all keys are working. Before booting the windows, the keyboard lights stuck and almost all keys were not responding.

I replaced keyboard IO board and cable but still same. I can see on device manager side 1 usb device not correct installed. When I plugout the IO board the usb device error is going.

I uninstalled all dell and alienware softwares and reinstalled again, but it did not help

Also I can tried different to BIOS version downgrade/upgrade not helped and tried keyboard Firmware installation, its giving error (3)

I tried new windows installation, the keyboard stopped again on the installation process.

Do you have any other advice?