These symptoms can happen when the end ground pins on the touch connector get bent in too much. I have seen this several times on the iPhone 8 after numerous connecting and disconnecting of the connector. I usually pry them back out with a thin needle.
[image|2641537]
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I have stopped repairing home buttons but I did find this info handy from Ben Duffy. [image|2671893]
These symptoms can happen when the end ground pins on the touch connector get bent in too much. I have seen this several times on the iPhone 8 after numerous connecting and disconnecting of the connector. I usually pry them back out with a thin needle.
[image|2641537]