With iOS 14, my finger ID on my iPad Air 4 was suddenly working nicely and reliably. However, with iOS 15, the problem comes back again. Even I just added a new finger ID, it is not recognizable right away.
It is quite frustrating.
iPad Air Wi-Fi
If you already tried (to no avail) ALL the steps provided in this support article:--> If Touch ID isn't working on your iPhone or iPad - Apple Support, I suggest that you make an appointment (*) and have your device inspected at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> Apple – Location Selector. After checking it out, they'll give you all the available options.
Regards
Giulio
(*) You can do it:
The problem of finger ID of the iPad Air 4 comes back again on iOS 15.
