1. Find "Set up SIM card lock"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-82001f12-5ac0-4ab7-b54e-34f497279b52.png?width=214&height=454)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9f25ab5d-c924-433b-8496-01a61ec3eede.png?width=214&height=454)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0b7401f8-9273-4d35-a302-d5bb51a43fca.png?width=214&height=454)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-aab38e79-a506-438d-b5db-85ce20ef6b86.png?width=214&height=454)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-22c74476-cdd0-4538-a8a2-27905f32cf24.png?width=214&height=454)
2. Turn use of PIN on or off
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6e52fd5e-04d5-44c6-b193-2880684e713c.png?width=214&height=454)
Key in your PIN and press OK.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting customer services. Please note: If you key in the wrong PUK ten times in a row, your SIM will be blocked permanently. In this case, you need a new SIM from Vodafone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b4950403-9861-40e8-b9d2-ad25e975d24c.png?width=214&height=454)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6e52fd5e-04d5-44c6-b193-2880684e713c.png?width=214&height=454)