Help Acer chromebook R721T DA0ZADMB8H1 REV H BIOS.bin

[myshu2006]

Please help with the Acer R721T Chromebook bios file. Thank you! I can't write my saved bios anymore because it gives an error (contents are in disagreement!)

[Sandeep]

PLEASE ATTACH YOUR BACKUP FILE I WILL FIX

[myshu2006]

My file is in attachments

[admin]

It has 1.8v eeprom ic. You must use 1.8-volt adapter, if you are getting the error. Or, if you have rt809f programmer, then there is no need of a 1.8v adapter. Just use Winbond w25q128fw, and press the auto-detect button. Then select manually w25q128fw 1.8vn. By doing this, you can fix the problem 100%.

[admin]

in these models, the other Chromebook backup files will not word even if the model is the same

[admin]

I will unlock your bios if you have an original backup

[admin]

Enjoy write this bios and plug your chrome recovery USB and install it, (imported) when recovery finish Don't connect wifi (Powerwash it ) Press and hold Ctrl + Alt + Shift + r after Powerwash Your chrome ready and unlocked

[myshu2006]

Thank you! The Bios file was not to blame, but a piece next to it that had flown when I blew hot air. It started and unlocked according to your instructions. Thank you very much!

[Nanitajr]

Excuse me, I have the same chromebook, but mine has school enrollment protection, oh business, if I install this bios .bin with my CH341A programmer, will my chromebook skip the enrollment protection? oh how can i do to repair my own bios and skip the protection? please help

[admin]

Use CH341A programmer And Programm For Unlock