I unlocked/jail-broke my iPhone 2g running 3.1.2 firmware on T-Mobile. My wifi does not work. I can go into settings and see my router and signal strength, but when I try to use my internet or anything that uses the internet will not work. There's an E where the wifi symbol would be, every once in awhile it'll go back and forth between the wifi symbol and the E, but I don't know what that means. I've tried everything you can think of. Can anyone help me? Any info much needed Please and thank you!