Change Home Button Cable Touch ID

This is a belated answer so hopefully it can be of use to folks who search for and find this question.

The Home Button functions can be easily damaged during a screen repair. First and foremost, closely inspect the Home Button Flex to see if there are any tears. Even the slightest tear can cause issues so use magnification. If that looks good, then inspect the condition of the connector at the end of the flex. From there, it connects to the Home Button Link Flex, which runs underneath the LCD Heat Shield. Sometimes that flex, especially in the connector area, can be damaged when it's pried off the screen assembly.

Lastly, check the other end of the Link flex to see if there is any damage there or to the connector on the logic board.