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darcity · 01-15-2023, 05:55 PM

So since the recovery partition is not subject to avb and the version in the metadata of the update.zip matched the version printed in recovery, I just flashed it.
The suggested recmod image did not provide a usable recovery. Was unable to enter it.
Instead of getting into recovery it got me in fastboot. From there I flashed the recovery.img from update.zip and in fact recovery works again.

What I was not able to do was writing zeros to the first 512Bytes of misc... no EDL. So as a last resort a bricked device can always theoretically be rescued connecting the EDL test point inside the device to usb data lane?

It's a pity that the device has this EDL 900e mode but no functional loader for it available.

Thanks a lot for your help @Renate. Lerned more than I was prepared for on a sunday evening.

01-15-2023, 05:55 PM	#21
darcity Member Posts: 20 Karma: 10 Join Date: Jan 2023 Device: Onyx Boox Note Air 2	So since the recovery partition is not subject to avb and the version in the metadata of the update.zip matched the version printed in recovery, I just flashed it. The suggested recmod image did not provide a usable recovery. Was unable to enter it. Instead of getting into recovery it got me in fastboot. From there I flashed the recovery.img from update.zip and in fact recovery works again. What I was not able to do was writing zeros to the first 512Bytes of misc... no EDL. So as a last resort a bricked device can always theoretically be rescued connecting the EDL test point inside the device to usb data lane? It's a pity that the device has this EDL 900e mode but no functional loader for it available. Thanks a lot for your help @Renate. Lerned more than I was prepared for on a sunday evening.