Touch screen replaced, iPad touch not registering fingerprints.

Replace touch screen in two stages, first took about 2 hours to remove old screen.

I was pretty meticulous and careful.

When I came back to place on the new display, my daughter had inadvertently turned the device on without my knowledge. Ahhhhhhhhhhhhhhhhhh!!!!!

So the rest was done live.

At no stage did I remove the home button from its motherboard connection, didn’t overstretch it. Was very careful.

Home button worked great so I completed installation, only to find that the fingerprint sensor was registering squat diddly. Yip, shouldn’t have completed assembly, but daughter had an appointment and I had to get home.

So tried the usual, delete fingerprint, turn touch id off/on, with power cycling in between the steps. Home button+Power button restart.

There must be some comms going on as when you try to add fingerprint, it gets to the “Place Your Finger” display, but touch id does nothing.

Factory reset worth trying? Or just accept its dead?

Have apple done an “update” that pairs the touch screen to the home button that I dont know about?