antenna search
1

Before you start

If you would like to change the SIM pin code, start from the next step. If you would like to set up a lock screen on your phone, jump to step 11. Make sure you have your Public SIM PIN before you start the guide.

2

Select Settings

Select Settings
3

Scroll to and select Security & Privacy

Scroll to and select Security & Privacy
4

Select More security settings

Select More security settings
5

Select SIM card lock settings

Select SIM card lock settings
6

Select Change PIN

7

Enter your Old SIM PIN and select Confirm

8

Enter your New SIM PIN and select Confirm

9

Confirm your new SIM PIN and select Confirm

10

Your SIM PIN has been changed

11

To activate your screen lock, go to the Settings menu and select Fingerprint, face and password

To activate your screen lock, go to the Settings menu and select Fingerprint, face and password
12

Select Enable the lock screen password

Select Enable the lock screen password
13

Enter lock screen password and select Continue

14

Re-enter your new passcode

15

Your phone is now secure with a screen lock

Your phone is now secure with a screen lock
To Top

Secure phone

Vivo iQOO Z1x

Please select your country and operator below to see Device Guides for your operator.

Please note: Your operator does not offer Device Guides.

Some phones, tablets, guides, settings and other features will be unvavailable or incorrect.