Hello, I have an iPhone 3G running on 4.0 software. It is has a jailbreak and an unlock for T-Mobile. For some reason though the iPhone can never find service. I have searched everywhere to find an answer to this mystery (tried the scotch tape, 3G is off, reset the network settings, restored the phone). The phone only has service in areas where there is very very strong signal strength. Please help to find an answer. As a last resort I was wondering if replacing the dock would help fix this issue? Please let me know!