1. Find "Touch ID & Passcode"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140624-f-d0e94727-3748-45d2-a04c-325de3c738f4.png?width=336&height=448)
Press Touch ID & Passcode.
![](http://wmstatic.global.ssl.fastly.net/ml/7140624-f-a9934f20-8d2f-4d25-bcbe-9609f7642de0.png?width=336&height=448)
2. Turn on use of lock code
Press Turn Passcode On and key in a lock code of your own choice twice.
![](http://wmstatic.global.ssl.fastly.net/ml/7140624-f-e2e06002-562f-4290-8ae6-f66521c68d4f.png?width=336&height=448)
3. Turn deletion of data on or off
Press the indicator next to "Erase Data" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140624-f-93504209-8c79-488d-89fe-7e04c655d561.png?width=336&height=448)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7140624-f-4a2cdc7d-4dd5-4c8d-a3be-5ab64d2ed32a.png?width=336&height=448)
4. Turn off use of lock code
Press Turn Passcode Off and key in the lock code.
![](http://wmstatic.global.ssl.fastly.net/ml/7140624-f-93504209-8c79-488d-89fe-7e04c655d561.png?width=336&height=448)
5. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140624-f-e2e06002-562f-4290-8ae6-f66521c68d4f.png?width=336&height=448)