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I bought an old iPhone 6 for 15 euro from my friend which was in desperate need of a replacement battery and a new home button. I replaced the battery no problem. The original home button did not respond to any clicks but the double-tap for one-handed mode did work and so did the Touch ID. Is there any way to take the working Touch ID sensor from the old button and attaching a new clicky part (no idea how its called - sorry for that) to it? Thanks in advance.
This doesn’t sound like a home button fault but could be a flex issue. If the touch ID functions I would try replacing the touch flex cable, the one that goes the length of the screen to the logic board. Also check the home button connector on the logic board.
https://youtu.be/H8R8GxMr-q8 if you can do this it will help you
