i need help ok my 3gs is locked 4.1 on orange and my 3g is unlocked 4.0.1 right the prob is there is no dignal bars on 3gs so if i take the sim out and put it in 3g i have full bars so if i take sim out of 3g and put it in 3gs i have full bars for about 5 to 12 hour then they disappear but i still say orange can anyone help