Home button rapidly clicking after screen replacement

"Hello, i faced this trouble twice in a week with two different iphone7 with very badly damaged screen (and one with water damaged). They have been previously opened so i don t know if i did the mistake at least for one but for the water damaged the trouble was already present: the flex cable from the button (not from the touch id) is cut near the grounding pad

as a capacitive sensor the button sensor is driven using specific pulse to sense the capacity change due to finger: with the track cut… it sense using the second half of flex board. Most of such circuit have a automatic calibration mode and without real sensor area, the button become crazzy. I will try two have my button repair in microsoldering surgery…"

I had the same issue with an iPhone 7 on which was doing a back case swap. The original phone was badly damaged and the case was bent. I had ordered a new back case and swapped the motherboard and other parts. The touch ID works , but the home button would sometimes multiple-click. After trying different screens, swapping the taptic engine, I put the home button under the scope and found the slightest wear/tear on the cable where it folds in half. I’m guessing that’s what is affecting it.

Do you have another screen assembly to test with? It could be a faulty screen. I would also go back and reseat any connectors, and make sure the screws holding in the home button are not overtightened.

Same problem here and I’m on my 3rd screen. After 1st screen, home button worked just fine but phone would randomly turn off usually while taking portrait photos but sometimes other times too. 2nd screen, home button stopped working but Touch ID was working fine. 3rd screen, rapid clicking but home button worked and Touch ID still worked. iPhone 7 Plus. I’m at a loss. No damage to any cables or connectors.

the u10 chip has been damaged remove the cable with heat