Iphone 7 Plus Front Camera Not Working After Screen Replacement

So i tested the camera while the screen was out of the shell body all the cables were still connected and the front camera was working just fine.
Iphone 7 plus front camera not working after screen replacement. The video is a step by step follow along guide with nothing. So i replaced a customers iphone 7 plus screen yesterday pretty standard stuff. This video will guide you through the process of replacing the front camera on an iphone 7 plus. I have checked the camera flex and it is in perfect condition with n o sign of damage.
However the camera flash is either totally not working or it is on before or after the photo is taken. Your iphone has a great camera but if it isn t working properly then you are going to be frustrated and want to get it fixed. For users with camera flash not working problem the following steps may be able to help you. I recently changed the screen of my iphone 6 4 7 and the front camera was not working.
Seemed to be fine so i checked him out. When i opened the phone to check if the cable is connected it was. When taking photos in dim light you may want to turn on flashlight when shooting. I am in the process of backing up and restoring the phone.
I have reset the settings already. He comes back into the store 5 minutes later and neither his front or back cameras show anything. Iphone camera flash not working. Took all the parts off his old screen and transferred them to a new screen.