Chosen Solution
So I originally was replacing my Wifi antenna strip, which required me to remove the logic board. When I went to reinstall everything, after attaching all of the connectors properly, my Touch ID sensor stopped working. The home button itself still works but the fingerprint scanner doesn’t let me turn it on or even use it. Read up and replaced my home button flex cable (came with the whole metal backing, heatstrip, etc)….and still no Touch ID. I’ve examined my connetors and they are all still intact. I’ve tried reconnecting them about 10 times now and still the same result. I’ve run out of ideas. Please give me suggestions (besides boycotting Touch ID for the rest of my iPhone 6 ownership).
Why was you replacing your wifi antenna in the first place? It’s quite rare for the 6 to have wifi issues. You’ve done the basic parts replacements, with the flex cable on the shield etc. It’s possible you’ve caused damage on the logic board when removing it etc. Any liquid damaged? Heavy drops etc.? Even a very tiny tear in the home button can cause the Touch ID not to work, or bending the cable too much, or using too much heat to remove the home button etc.
A replacement touch ID sensor will never work. The original sensor works only with your motherboard and nothing else. I’ve heard unplugging the battery while its on may short out or cause problems with the touch ID. Did you turn the phone off prior to opening it?
When the touch ID stops picking up touch and the home button still functions, that means the touch ID will never work again. The touch ID senor that came with the phone itself is the only one that is compatible with that iPhone. The best thing to try would be find a broken iPhone 6 on eBay and see about getting just the home button. Maybe a OEM Apple button will work.
