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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 and Privacy

Scroll to and select Security and Privacy
4

Scroll to and select More security settings

Scroll to and select More security settings
5

Select SIM card lock settings

Select SIM card lock settings
6

Select Change PIN

Select Change PIN
7

Enter your Old SIM PIN and select OK

Enter your Old SIM PIN and select OK

Old SIM PIN

8

Enter your New SIM PIN and select OK

Enter your New SIM PIN and select OK

New SIM PIN

9

Confirm your new SIM PIN and select OK

Confirm your new SIM PIN and select OK

Confirm new SIM PIN

10

Your SIM PIN has been changed

Your SIM PIN has been changed
11

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

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

Select Screen lock

Select Screen lock
13

Select Pattern

Select Pattern
14

Draw an unlock pattern

Draw an unlock pattern
15

Draw the unlock pattern again

Draw the unlock pattern again
16

Enter the answer and select Done

Enter the answer and select Done
17

Your phone is now secure with a screen lock

Your phone is now secure with a screen lock
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Secure phone

Vivo Y91i

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