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1

Before you start

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

2

Swipe up

Swipe up
3

Select Settings

Select Settings
4

Scroll to and select Security

Scroll to and select Security
5

Select Screen lock

Select Screen lock
6

Select Pattern

Select Pattern
7

Draw an unlock pattern and select Next

Draw an unlock pattern and select Next
8

Draw the unlock pattern again and select Confirm

Draw the unlock pattern again and select Confirm
9

Select your preferred option and select Done

Select your preferred option and select Done
10

Your phone is now secure with a screen lock

Your phone is now secure with a screen lock
11

To change the PIN for the SIM card, go to the Security menu and select More security settings

To change the PIN for the SIM card, go to the Security menu and select More security settings
12

Select SIM card lock

Select SIM card lock
13

Select Change SIM PIN

Select  Change SIM PIN
14

Enter your Old SIM PIN and select OK

Enter your Old SIM PIN and select OK

Old SIM PIN

15

Enter your New SIM PIN and select OK

Enter your New SIM PIN and select OK

New SIM PIN

16

Confirm your new SIM PIN and select OK

Confirm your new SIM PIN and select OK

Confirm new SIM PIN

17

Your SIM PIN has been changed

Your SIM PIN has been changed
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Secure phone

Sony Xperia 10 IV

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