OPPO A57 4G

OPPO A57 4G

Android 12.0

Turn use of PIN on your OPPO A57 4G Android 12.0 on or off

Read help info

The PIN protects your SIM from unauthorised use if your phone should get stolen. If use of PIN is turned on, it needs to be keyed in when you turn on your phone.

Step 1 of 9

1. Find "SIM card lock"

Slide two fingers downwards starting from the top of the screen.

Step 2 of 9

1. Find "SIM card lock"

Press the settings icon.

Step 3 of 9

1. Find "SIM card lock"

Press Password & security.

Step 4 of 9

1. Find "SIM card lock"

Press System security.

Step 5 of 9

1. Find "SIM card lock"

Press SIM card lock.

Step 6 of 9

2. Turn use of PIN on or off

Press the required SIM.

Step 7 of 9

2. Turn use of PIN on or off

Press the indicator next to "Lock SIM Card" to turn the function on or off.

Step 8 of 9

2. Turn use of PIN on or off

Key in your PIN and press the confirm icon.

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.

Step 9 of 9

3. Return to the home screen

Press the Home key to return to the home screen.

1. Find "SIM card lock"

Slide two fingers downwards starting from the top of the screen.

Press the settings icon.

Press Password & security.

Press System security.

Press SIM card lock.

2. Turn use of PIN on or off

Press the required SIM.

Press the indicator next to "Lock SIM Card" to turn the function on or off.

Key in your PIN and press the confirm icon.

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.

3. Return to the home screen

Press the Home key to return to the home screen.