1. Find "Touch ID & Passcode"
Press Touch ID & Passcode.
2. Add fingerprint
Press Add a Fingerprint....
Follow the instructions on the screen to add your fingerprint. If you haven't previously selected a lock code, key in a code of your own choice twice.
3. Select Touch ID settings
Press the indicator next to "iPad Unlock" to turn the function on or off.
If you turn on the function, you can use your fingerprint to turn off the lock code.
Press the indicator next to "iTunes & App Store" to turn the function on or off.
If you turn on the function, you can use your fingerprint to authorise iTunes and App Store purchases.
4. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.