Thinpad 11e hardware firmware protection

Trying to do flash firmware:

cd; curl -LO mrchromebox.tech/firmware-util.sh && sudo bash firmware-util.sh

but it says hardware write protect enabled cannot flash full ROM firmware.

And after removal of screw there is no guarantee.

Yea, the very first thing in the docs is a warning that you’ll void any warranty.
Please read this page carefully again: Flashing Custom Firmware | Chrultrabook Docs

No way remove protect without removing screw?

no way

Ok win11 installed, audio working, trackpad working, touchscreen is not. 720p60 playback on YouTube is skipping frames, CPU 100%

screen brightness cannot be changed in windows?