Original post by: Brian Wood ,
I would try doing a hard reboot first. Hold down the volume button and power button until you see the Apple logo. If that doesnt work, try plugging it into your PC or Mac to see if it’s recognized. Lastly try reseating all connections. If none of these work, try another screen to rule out the replacement part going bad. You could have a short on VDD main or some other short that could be causing the phone to not take a charge. Hopefully one of the above steps fixes the issue, because a short will require microsoldering repair.