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Help Acer chromebook R721T DA0ZADMB8H1 REV H BIOS.bin

Now you can easily install windows on your Chromebooks like Acer Samsung Hp Dell Lenovo Google pixel
myshu2006
Posts: 4
Joined: Sun Sep 16, 2018 6:43 pm

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!)


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Sandeep
Posts: 7703
Joined: Fri Sep 21, 2018 9:50 am

PLEASE ATTACH YOUR BACKUP FILE I WILL FIX
myshu2006
Posts: 4
Joined: Sun Sep 16, 2018 6:43 pm

My file is in attachments
Attachments
Acer R721T.bin
(16 MiB) Downloaded 1012 times
Acer R721T.bin
(16 MiB) Downloaded 1012 times
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Admin
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Posts: 179
Joined: Fri May 04, 2018 3:07 am

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%.
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Admin
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Posts: 179
Joined: Fri May 04, 2018 3:07 am

in these models, the other Chromebook backup files will not word even if the model is the same
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Admin
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Posts: 179
Joined: Fri May 04, 2018 3:07 am

I will unlock your bios if you have an original backup
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Admin
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Posts: 179
Joined: Fri May 04, 2018 3:07 am

Enjoy write this bios and plug your chrome recovery USB and install it, (imported) :ugeek: when recovery finish Don't connect wifi (Powerwash it ) Press and hold Ctrl + Alt + Shift + r after Powerwash Your chrome ready and unlocked
Attachments
Acer R721T Unlocked.bin
(16 MiB) Downloaded 312 times
Acer R721T Unlocked.bin
(16 MiB) Downloaded 312 times
myshu2006
Posts: 4
Joined: Sun Sep 16, 2018 6:43 pm

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
Posts: 1
Joined: Wed Nov 09, 2022 11:14 am

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 :roll:
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Admin
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Joined: Fri May 04, 2018 3:07 am

Use CH341A programmer And Programm For Unlock
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