1 Find "Touch ID & Passcode"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7150124-f-1c5e1eed-89e0-40fd-b906-da3392e716bb.png?width=304&height=436)
Press Touch ID & Passcode.
![](http://wmstatic.global.ssl.fastly.net/ml/7150124-f-ee9dce70-d3a9-4865-9cb7-680602cc077e.png?width=304&height=436)
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/7150124-f-f015d776-3952-4486-bb7d-26f1c43514b9.png?width=304&height=436)
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/7150124-f-4b6a1bc3-a230-4915-9331-7239ab10fcbb.png?width=304&height=436)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7150124-f-7ddf6ad8-1ee6-4ea0-91e4-8ab2b5b7dbe4.png?width=304&height=436)
4 Turn off use of lock code
Press Turn Passcode Off and key in the lock code.
![](http://wmstatic.global.ssl.fastly.net/ml/7150124-f-4b6a1bc3-a230-4915-9331-7239ab10fcbb.png?width=304&height=436)
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/7150124-f-f015d776-3952-4486-bb7d-26f1c43514b9.png?width=304&height=436)