[Q] Downgrade 3.x firmware with S-ON
Hello, xda. I recently flashed a 3.04.651.2 firmware zip to my phone, causing it (alarmingly) to be updated to said firmware. I'm stuck in the bootloader and I used misctool to set my mainver to 1.00.000.0, thinking a RUU would downgrade the device. Wrong. Now I'm in the bootloader trying to flash zips to downgrade, but to no avail. Tomorrow I'll be able to flash a recovery and rom so I can get more information out, but this is all I have at the moment:
Attempts to flash rom.zips and use RUUs have all failed for some reason or another, I believe because my hboot is 1.55 (and thus the packages fail with an error 44 hboot version check fail). Restoring a nandroid from an earlier rom version mostly works but leaves my phone with an unresponsive touchscreen. Is there any way I can downgrade to an earlier firmware + rom without having any of the mentioned issues, or do I need to wait for an S-OFF exploit for my hboot?