Hey, I just got an Axon 7 (A2017U running android 7.1.1) from a friend today. I factory reset it and then downloaded available updates. Somehow the update process went wrong because an hour later it was still stuck on the ZTE load screen.
I can boot into recovery mode, but wiping cache and attempting factory reset dont fix it. I figure it is bricked. I tried updating to B19 and B32 using the update.zip from ZTE support, but get the error "Sorry, you cant sdcard upgrade." I also tried ADB sideload. Got error (adbd status 1) Installation aborted.
It sounds like I need to turn on Developer Tools, but I can only do that when the OS boots.
I would prefer to find solutions that don't void the device warranty if possible.
Is there anything I can do?