Chosen Solution
I have just replaced my iPhones housing, lcd/digitizer screen, battery, main speaker and rear camera. Before the repair, the phone would turn on and work normally (apart from the damaged parts). I have just finished the repair and the iPhone turns on and enters into a boot loop. It is not being recognised by a usb cable and doesn’t charge either. When I disconnect the lightning connector assembly the phone turns on and works perfectly. I have looked for damage on the connectors and ribbon cables and I couldn’t really see anything major . I have now ordered an OEM replacement. The only damage I could see are little dents on the ribbon cable. If somebody could have a look at these photos and give me some feedback on what the problem could be, that would be amazing. I have not yet checked under the circuit board, so could be a problem there too.
I was able to fix the iPhone by testing the lightning cable assembly before installing it into the mainframe of the case. It fixed the problem. I believe something was being shorted. It could possibly be looping because I didn’t have the grounding spring contact attached. I hope this helps somebody with the same problem one day.
