Touch ID stopped working on IPad Air 4th Generation
Just stopped working. I did a reset updated to version 17.1.2
iPad, iPadOS 15
The iPad User Guide describes the straightforward process of setting-up TouchID:
Set up Touch ID on iPad - Apple Support
If you are having difficulty setting-up TouchID, refer to this support page:
If Touch ID isn't working on your iPhone or iPad - Apple Support
If you continue to experience difficulties, you might be well advised to seek assistance directly from Apple Support. You can contact the Support Team using the Support link at top-right or bottom-left of this page. Alternatively, you can initiate and manage your support cases from Apple devices using the excellent Apple Support App. If not already installed, the App can be downloaded from the App Store:
https://apps.apple.com/app/apple-support/id1130498044
You might also visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to test and assess your iPad: