A55 AF broken
I have an A55 which AF's sometimes and others just hunts without locking. I'm pretty sure it's not the mirror (it isn't perfect but I replaced it already once and the issue happens with the old one too), but I'm not sure if it's a wire somewhere, the lens mount, or the PDAF sensor itself.
Sometimes when I take the lens on and off or reset the camera it helps, others it doesn't. I tried a hard reset (menu/play/movie, 30sec, repeat) and nothing happened.
Sony wants $300 to fix (I can get an LA-EA2 for 150-200), at least one local shop gave up on diagnosing the issue (it started working at the shop). I'm in the San Francisco area. Does anyone have any suggestions?