It won't let you link photos in comments, you would have to go back and edit it in to your original post. But I see what you mean about the connector. I am actually having a really similar issue with an iPhone 8 and I was reminded by another user here that those grounding pins actually can interfere with touch functionality.
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Try plugging in just the display connector and no home button and see if you get touch functionality back. It may just be the pins on the one end of the connector (the silver ones near where you mentioned) need to be bent back so they are more exposed and can make good contact with the cable.
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Try plugging in just the display connector and no home button and see if you get touch functionality back. If so, it may just be the pins on the one end of the connector (the silver ones near where you mentioned) need to be bent back so they are more exposed and can make good contact with the cable.
It won't let you link photos in comments, you would have to go back and edit it in to your original post. But I see what you mean about the connector. I am actually having a really similar issue with an iPhone 8 and I was reminded by another user here that those grounding pins actually can interfere with touch functionality.
Try plugging in just the display connector and no home button and see if you get touch functionality back. It may just be the pins on the one end of the connector (the silver ones near where you mentioned) need to be bent back so they are more exposed and can make good contact with the cable.