MobileRead Forums - View Single Post - Boox Tab Mini C severe ghosting ==> Faulty TCON-B controller?

Anghirrim · 08-27-2026, 01:59 AM

By the way, I've been trying a few things on it yesterday with the hope of downgrading it to a previous version (currently on 4.2, planning to flash 3.5.4).

I got the firmware files and decrypted them (3.5.4, 4.0, 4.0.2 and 4.2).

Also entered EDL mode and made a complete backup (with .\edl.exe /u0 /r / backup0.img, from 0 to 5 for each LUN).

But now, the stock recovery does not have the adb sideload option.

Is there any interest in downgrading and see the effect on the ghosting or is it most probably hardware related?

Thanks

08-27-2026, 01:59 AM	#4
Anghirrim Seeking for Graal Posts: 228 Karma: 16198 Join Date: Jul 2013 Location: France Device: Onyx Boox Page / Onyx Boox Tab Mini C / Kobo Forma	By the way, I've been trying a few things on it yesterday with the hope of downgrading it to a previous version (currently on 4.2, planning to flash 3.5.4). I got the firmware files and decrypted them (3.5.4, 4.0, 4.0.2 and 4.2). Also entered EDL mode and made a complete backup (with .\edl.exe /u0 /r / backup0.img, from 0 to 5 for each LUN). But now, the stock recovery does not have the adb sideload option. Is there any interest in downgrading and see the effect on the ghosting or is it most probably hardware related? Thanks