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When I plug the charger in my iPhone 6 Plus I have no vibration and my phone doesn’t turn on, I bought a new screen and battery. I did all of the power and home button solutions and I still have a black screen. The phone hasn’t been in any water and was working before I had got a new screen. I know for a fact that my new screen and battery works because I tried it on another 6 plus. Help me please.
Try connecting your phone to an iTunes enabled computer to see if it is recognized. If it is, then shine a bright flashlight on the screen. If you see a dim image, then you have a backlight circuit issue. If iTunes does not recognize the phone, then I would try to disconnect the screen, cameras and sensors, leaving only the dock and the battery connected. Try connecting it to iTunes again. If iTunes does not recognize your device, then you probably have a logic board issue. You could try a different battery or dock to be 100% certain. If iTunes does recognize a bare bones device, then add peripherals one at a time until you determine which one is causing the failure.
