1 Find "Touch ID & Passcode"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-d43ffe55-b190-4c28-bdbc-f7c9947aa804.png?width=306&height=440)
Press Touch ID & Passcode.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-d666472b-bbd7-4450-aacc-650f5308367d.png?width=306&height=440)
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/7070225-f-22d2493b-00fb-4dbf-b569-3a941ee4bdd8.png?width=306&height=440)
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/7070225-f-5cf53c04-0954-4b49-b7fb-41c2cfef87f0.png?width=306&height=440)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-1d569940-b23a-42f8-bc3d-2b6a67a97864.png?width=306&height=440)
4 Turn off use of lock code
Press Turn Passcode Off and key in the lock code.
![](http://wmstatic.global.ssl.fastly.net/ml/7070225-f-5cf53c04-0954-4b49-b7fb-41c2cfef87f0.png?width=306&height=440)
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/7070225-f-22d2493b-00fb-4dbf-b569-3a941ee4bdd8.png?width=306&height=440)