Chosen Solution

Hi, I’ve bought a second hand iPhone 6 plus and when receiving it wouldn’t charge. I’ve previously opened up plenty of iPhones to replace screens and batteries, so i opened up the iPhone only to see that the screen already had been replaced (non OEM part). Is it at all possible a bad screen is the cause? or should I look elsewhere? Fun fact: I can charge the phone on an official docking station, but not with the cable directly plugged in the phone.

Yes absoulately,In the case of changing lcd if there is copy lcd fixed it.Otherwise such problem i don`t hear on

In short, yes. Bad screens and poor connections can effect battery. It can short or draw more power to defective screen, robbing power from where it needs it. At Minimum, It does sound like you have an issue with the charging port though from not being able to charge directly with wall/usb charger…or possibly a charging IC issue, but would start with a charging port and then download 3Utools at 3utools.com, connect your device and look at the battery health to see if it’s time for a new battery as well. after repairing the charging port and verifying the battery is good, see if your issue remains from the screen or not and then proceed accordingly :)