Originally Posted by mrlad
Was on 4.2.2 (rooted). Did an OTA upgrade to 4.3. Upgrade completed without incident. Tried to login and after entering my password, my Nexus 4 rebooted. This happens over and over. Even tried booting into safe mode. Always reboots instantly after I enter my password.
Any ideas or suggestions on how I can get out of this cycle?
If you do searches here on XDA you'll see that several of us had issues upgrading to 4.3 (me included).
If you created a Nandroid backup prior to upgrading to 4.3, I'd bring it back down to 4.2.2 (bootloader/radio) and flash the backup. After that you can create a backup in TiBu, flash 4.3 from the Google Developers page and restore your backup. It's not ideal but it seems to work better than the OTA update for a lot of people.
Edit: If you have a 16 GB Nexus 4, make sure that after you flash 4.3 it still thinks your phone is a 16 GB phone. Mine thought it was an 8 GB phone (registered something like 6 GB available after flashing stock 4.3). A factory reset within Android can fix this -- just something to look for before you reload all of your apps with TiBu.