![Alcatel 1B (2020)](http://wmstatic.global.ssl.fastly.net/ml/7070823-f-98a51c92-122e-4c2e-8cbe-ff01eb633afb.png?width=150&height=320)
Alcatel 1B (2020)
Android 10.0 (Go edition)
1. Find "SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7070823-f-a6e5f4a8-c023-4979-b305-6d88a03f03ff.png?width=206&height=412)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7070823-f-e2862964-0b75-48ec-93ed-bf86b51359d0.png?width=206&height=412)
Press Security.
![](http://wmstatic.global.ssl.fastly.net/ml/7070823-f-791d1e4b-8905-4699-95ea-4ccfb703245b.png?width=206&height=412)
Press SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7070823-f-73ac9fe9-1562-459a-b713-93828741f34d.png?width=206&height=412)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7070823-f-a5f89c9e-986e-45fc-b6cd-008dfb9723c4.png?width=206&height=412)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7070823-f-a5f89c9e-986e-45fc-b6cd-008dfb9723c4.png?width=206&height=412)
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. 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/7070823-f-5dcf882b-74a5-498c-812d-ff0f86a2eb64.png?width=206&height=412)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7070823-f-a5f89c9e-986e-45fc-b6cd-008dfb9723c4.png?width=206&height=412)