I see System updates is not present in the About phone Settings menu. So then are OTA System updates not supported? I flashed Bugless Beast 4.1.1 to my phone. Now there is a new nightly build. What's a good way to update to that without losing data? I have ClockworkMod-Recovery-v188.8.131.52 installed which can do Nandroid backups. Should I use that to make a backup and restore it after flashing the latest nightly build?