Now that the charger and cable issues have been sorted out, it's time to look at the phone itself. The best you can do is look inside the utility port to see if there are any foreign things preventing appropriate contact between the phone's connectors and the cable. Look for lint, debris, or any other signs of deterioration. Check for liquid residue as well, because one pin is connected to the other via liquid, resulting in faulty or non-charging.then restart your iPhone after solving these mistakes