Installing Flex on a WP-unscrewed CELES (Samsung Chromebook 3)

I’ve recently bought an used Chromebook 3 that I would like to install ChromeOS Flex in it since it doesn’t receive any official updates anymore.

The thing is, I already removed the WP screw from it’s motherboard but the system still detects as if it is there, aka the writing protection is enabled.

Any tips on how to solve this? I can’t stay stuck with the version 103 of chrome, none of my extensions work properly in it, nor Linux :d

Also, I read the related topic (Firmware Utility Script doesn't work on Samsung Chromebook 3 CELES - #7 by zMostarda), but how much should I clean the screw pad?

FYI, Flex doesn’t have working built-in audio on Braswell devices like CELES.

there needs to be no electrical contact between the segments/sides

That’s okay, I don’t mind not having audio, I just want to keep it up to date :v

Alright, I’ll see what I can do.