iPhone 6: Touch ID Not Working After LCD Replacement - 11.1 Silver, Black Home Button Issue

Hello, I will describe the problem, which will dispel any questions and suggest accurate answers, namely I have an iPhone 6 and 11.1 silver. Everything was smart in this touch id. The phone fell down and the LCD burst but continued to work on this touch id too. I decided to replace the LCD with a functional black with a black touch id button. I put on a new black LCD with a black home button and the finger recognition function stopped working. I put on the white original buttons for the new black LCD it works finger recognition function. What should I do to make this black button work because the black LCD and the white button look poor? thanks for the info

You won't do anything about it, the button is assigned to the motherboard and that's why the one from the second display doesn't work for you.

Buy a white display and the problem of the mismatched button will disappear.

The original button has an integrated circuit paired with the processor. After replacing the button with another Touch ID it stops working, it's completely normal. If you want Touch ID to work, unfortunately you have to stay with the original white button

Probably there will be a stubborn service that will do it to work on black but when it comes to profitability it's definitely cheaper to find a white display, apart from the fact that such a procedure is a serious interference with the motherboard.
In your situation, I would think about one of three solutions
- live without Touch ID
- live with the white button
- buy a white display

There is an option to do it but you would have to pull the whole system out of the button and this is very risky and you will lose touch ID if someone does it wrong.

Due to the high risk of this operation, I did not mention this option The desire to have a black button is not worth the risk.