How to Disable Firmware Write Protect on Asus C214 ChromeBook

How to Disable Firmware Write Protect on Asus C214 ChromeBook

Warning :

I'm not responsible for what you do to your Device. This guide is 100% genuine.but you do something wrong with your device all responsibility is yours. And ofcourse backup your important data if needed. 

Some info : 

How Does Firmware Write Protect Work?

On a typical ChromeOS device, the system (or application processor/AP) firmware is stored on a SPI flash chip, often SOIC-8 form-factor. As part of the ChromeOS security model, certain parts of the device firmware are set to be read-only. The protection of these read-only regions is implemented by a combination of hardware and software measures.

In asus C214 Device and newer :

On platforms up to mid-2021 (Geminilake/Tigerlake and older), the CR50 sets the WP state to follow the battery sense line, so disconnecting the battery will disable the hardware write protect.

 1 ) Open back cover of Asus Chromebook c214 back

Open plastic cover & slide battery connector from socket 

After removing battery connector. Connect DC power adaptor to Chromebook. And turn on without battery. Now without battery Procced to next steps to install custom core/boot firmware (from mrchromebox)

Also mrchromebox script ask you to back (backup press Y )

Conclusion:

You can easily disable "firmware write protection" on asus c214 Chromebook