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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 Apps

Select Apps
3

Select Settings

Select Settings
4

Scroll to and select Security & location

Scroll to and select Security & location
5

Scroll to and select SIM card lock

Scroll to and select SIM card lock
6

Select Change SIM PIN

Select  Change SIM 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 Security & location menu and select Screen lock

To activate your screen lock, go to the Security & location menu and select Screen lock
12

Select Pattern

Select Pattern
13

Select your preferred option

Select your preferred option
14

Draw an unlock pattern and select NEXT

Draw an unlock pattern and select NEXT
15

Draw the unlock pattern again and select CONFIRM

Draw the unlock pattern again and select CONFIRM
16

Select your preferred option and select DONE

Select your preferred option 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

HTC Desire 12s

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