iPhone 6 says " No service " or "searching"
I can not get my phone to get any cellular signal. I have tried everything on the software side of things and I mean everything. I know this is a hardware issue because for a while If I just gave my phone a bump, the cellular connection would come back on and I would have service. I dove into the phone and I disconnected all the cables that plugs into the logic board and even cleaned the logic board. I connected everything back on, still no service. I need some help and answers on what I should do to get this working on my own. It's got to be something simple. is it a simple process to replace the cellular antenna and if so where can I purchase? Could it be the RF antenna switch ?