Nissa (pujjoteen) - Unenroll school device + Windows 11 without opening the case?

Support
1

I have a school-managed Chromebook on the nissa board (customization ID: pujjoteen, firmware Google_Pujjo.15217.279.8).

ChromeOS version: 150.0.7871.222 (platform 16700.61.0).

I want to permanently unenroll it and install Windows 11 afterwards.

I’m not willing to open the device or disable hardware write-protect (no battery disconnect / no pin shorting).

Questions:

  1. Is there still any working software-only method to unenroll a nissa device on this recent version?

  2. If unenrollment is possible without hardware WP disable, can I then flash MrChromebox Full ROM and install Windows 11?

  3. Any realistic chances or should I just give up?

Thanks.

2

no. no. no/yes