My phone is stuck at the ATT Logo screen and no matter what I do I cannot get past it; I tired to boot into recovery mode to wipe data but it won't let me boot into recovery mode. I've went to Odin to and put on a new .pit but I also failed that. Before all this happened I was on MF3 (rooted) and I wanted to unroot it so I could get the OTA and root my phone on MK2. So, I unrooted my phone and got the update and when the phone went to reboot it got stuck at the att logo. Any advice/ solutions would be great. Thank You.