原帖由： Rany ,
If you replace the flat cable that has the button attached to it, you will loose both Touch ID and Home Button functions. Your button will be a useless fixture. If you replace the screen extension cable that is part of the backlight panel (and doesn't have the home button directly attached to it), you don't loose your Touch ID function. And in case that cable was damaged before, preventing Touch ID from working, then you gain that function back.