![Samsung Galaxy Z Flip3 5G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-107f9c9b-1dd3-4e9a-b656-ccca235a111a.png?width=150&height=320)
Samsung Galaxy Z Flip3 5G
Android 11.0
1. Find "Set up SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2c58e84a-a234-4e12-a183-86356108a319.png?width=186&height=454)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e0b5e3d9-fdfb-4613-a51d-77d8dd79b1e8.png?width=186&height=454)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9ef35884-2bec-49e7-9cbc-c6a2b81bf3f0.png?width=186&height=454)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d7698798-2bc0-4a7b-af95-d27f44d27b97.png?width=186&height=454)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e6528484-33ef-4a79-9d52-2f70aafc7d7f.png?width=186&height=454)
2. Change PIN
Press Change SIM card PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-04554f2c-d49f-489d-b404-687aa6054458.png?width=186&height=454)
Key in your current 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. You can get the PUK by calling customer services on 191 from a Vodafone mobile phone. If you're using a land line, you need to dial 03333 040 191. 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/7151223-f-ee7b3f47-0eda-437f-b090-ff3f00fcbefc.png?width=186&height=454)
Key in a new four-digit PIN and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a73c5bb8-0cb9-4ade-a73f-63a07c490b6e.png?width=186&height=454)
Key in the new PIN again and press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-be17ddf4-475c-48cf-a1f9-1faf6947a291.png?width=186&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/7151223-f-04554f2c-d49f-489d-b404-687aa6054458.png?width=186&height=454)