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Old 09-06-2021, 09:09 PM   #1
kaicho
Junior Member
kaicho began at the beginning.
 
Posts: 6
Karma: 10
Join Date: Sep 2021
Device: Sony PRS T1, Onyx Boox Nova 2
Boox Nova 2 Downgrade

Hi, after update further from 2.1.2 regal refresh mode stopped to work as intended. From 1.5year of chats with support I get only ignoring (never said a bad word to them). Now I'm trying to downgrade or sell this useless piece of onyx.

Issue: regal mode doesn't refresh page with every turn.
Initially onyx accept issue and told me about workaround that worked until next update, and after next update workaround stopped to work and they refuse to accept the issue anymore (ray@o-in.me).

For now I'm having old 2.1 version of update.upx. I successfully decrypt it with decryptBooxUpdateUpx. I'm assume that if I change META-INF/com/android/metadata to something like

Code:
ota-property-files=metadata:69:284         
ota-required-cache=0
ota-type=BLOCK
post-build=Onyx/Nova2/Nova2:9/2021-01-01_08-58_3.1_9aed398/2499:user/dev-keys
post-build-incremental=2499
post-sdk-level=28
post-security-patch-level=2018-10-05
post-timestamp=1604451979
pre-device=Nova2
it could work. But I have no way to encrypt it back to upx. Maybe someone know how to downgrade boox or encrypt firmware into .upx?
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