hi i have a rooted mytouch 4G..for some odd reason it wont read my sim card or even identify if their is one.i cant even get a 3g or 4g symbol. I have flashed rom after rom and im using a new radio 26.03.00.04..and i flashed another radio prior to that...could it be sim locked? or has the antenna died or idk..please any help will do thanks