Why no phone network detected
My iPhone 5 lost constantly its connection to the phone network 3 months after i opened it to fix its volume buttons. It couldn't even load the available carrier networks when set to Manual. The Wifi works just fine.
So I assumed that I messed up with something related to phone network inside:
I checked the "Field test" screen and it refused to load. Stuck on "loading"
I opened the iPhone and checked that interconnect cables and the 3G antenna (bottom one) were well connected. It didn't fix it.
I changed the interconnect cables, it didn't fix it.
I changed the AudioJack+LightningConnector+3GAntenna module and it didn't fix it.
Now I am stuck. Any ideas out there?
Is this a good question?