Long story short: Rooted v4.1.2 Cleaned out the bloat - Phone worked great. Did some sort of cache cleaning app (which I can't find in the play store now. :/) Did a reboot, suddenly it's in full factory reset. Now phone is not only not-rooted, but the FM radio and live wallpapers don't work. The rest of the phone (at least the parts I use) still work fine, as far as I can tell. Tried a hard reset, checked a few things. Not finding out what broke. Anybody have any thoughts, preferably ways to fix it?