Maybe a silly question, but if I factory reset my phone, does it go back to Android version 4.1.1. or it stays 4.1.2. ? I'm asking because I HATE 4.1.2. ! This update gave me problems with my LED indicator and rotation, so I'd like to go back to version 4.1.1. Also, if you know an easier way of doing that, please tell me! Thanks!