Ok ladies and Gents I have a problem that is driving me crazy. I have an ATT branded note 3 unlocked bought it a few weeks ago everything is working perfect phone is flawless. The Firmware version was MJ5. So I did the ota to NB4 now I'm pulling my hair out because this phone is acting retarded. Touch wiz is always crashing, My sd card slot will not read any micro sd card (I Have 5 micro sd cards of different sizes from 1gb to 32gb) I just want to flash this thing back to normal and I can not find anything on re flashing this phone. Contacting att is not an option they are not my service provider neither did I purchase the phone from them so please do not refer me to them. Any information will help.