Lenovo 11E edu series type 20DU-009US HW/ID=GLIMMER

I am new to this. I would like to mod this Chromebook to uefi bios.

Can someone please provide instructions/ pictures as to where and How I can get to

the Write protect screw or screws. I have not been able to find a video or anything for this particular model. The video’s I have seen have a long battery.

My battery is rectangular and is about 4.25” x 6.25”.

The Mr Chromebox list just says “screw” and no information.
All help would be appreciated.

Thank you