Chosen Solution
Hello, I’ve replaced screen on my iphone, so firstly I tested if it works, so I connected it to mainboard and everything worked as it should. After assembling whole phone screen don’t work, no image. Thanks for help
Did you disconnect the battery before you unhook the cables for the screen and before you reconnected them. It can damage the back light circuit. See if you can see an image in a darkened room with a flash light angled on the screen. Also check the connections and make sure there is no damage. Clean them with a qtip and alcohol and a soft brush Update (06/24/2020) You have cleaned the connections and the battery is connected now. Can you see any images on the screen but they are hard to see? Does the computer and iTunes recognize the phone? Make sure the phone is on and verify this.
