hello i own a Motorola razr D&G edition but im having problems with it. the phone reads the sim connects to the cellular provider (cingular/at&t) but when ever it trys to make a call it says call faild and it witches itself to emergency calls only, sometimes. ive tried modifying all the network setting and everything else but i still cant seem to make calls or send text or anything. im trying to see if i can find a newer firmware to try to upgrade it and see if that solves the problem but i dont know what the newest firmware is please if anyone can help me let me know. thank you