I have this same issue but with an iPhone 6s. I recently bought a replacement screen from iFixit and it had ghost touch so I am getting it replaced. Sometimes ifixit sends screens that have ghost touch. I don't know if you bought from iFixit, but like 10% of the time for me, I get ghost touch after a new replacement. I know for a fact that apple pairs screens with the device and if the serial numbers don't match than apple will disable some functionalities like true tone. I have not heard of ghost touch with an unpaired display, but it might be a real possibility considering Apple's track record. I don't know if you have the tools to do so, but try pairing the screen with the same serial number as the original. Hope this helped, - Jackson
Aftermarket screens are required to have thicker “bezels” than apple screens because of some copyright thing. Any screen that isn’t apples has to be thicker. I’m sorry but you can’t get around this unless you want to pay apple $100 - $600 to “replace the screen” on your device. Apple usually doesn’t even hassle with replacing the screen and they just send you a new device. I hope i was helpful in answering your question!
Your connectors may be loose. Disconnect and reconnect them. If that still doesn’t fix it, check the ribbon cables thoroughly, as they may be ripped. Even the smallest knick can completely kill the screen. If even after that the display still doesn’t work, check the gold contact pads on each connector. If the display is still dead, power the device on and make sure you see the white backlight light up. Wait a while and see if the display actually displays anything. The device may just need a while to boot. If none of this works, send some pictures of the connectors and the display. You may need to order a new one. I also have multiple spare displays if you would like to see if it’s just the display. If you would like one you can comment on my answer here. The “white light” you are seeing on the underside of the display is the backlight for the screen so I am assuming that the logic board is working and the battery is working. I hope this was helpful - Jack
It may be the sensitivity on the screen due to the new screen. Try using a different combo of gestures. Correct me if I’m wrong. I never had this phone but I replaced a screen on my otr phone and it’s sensitivity is SUPER high. You don’t have to even touch the screen to have it register the touch. Good luck
Try unscrewing the back of the keyboard and if something is out of place, put it back to where it was. If some springs are broken, order replacements. If nothing is visible that is causing the problem, contact the manufacturer.
Ok. First of all, this is extremely hard to do. You need to invest in the right tools and other things. Next, iPads are WAY more fragile than iPhones. One wrong move and no more iPad. It would be a little bit more expensive taking it to apple, but there would be NO risk. That’s what I recommend.
Make Shure that the paper is being picked up by the guise wheels. If not open it up and check for foreign objects or paper Jams stuck in the way of the paper. Something as small as 4 grains of rice, positioned in the right way can stop everything.