Sony Xperia M - Locking and protecting your device

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Locking and protecting your device

IMEI number

Every device has a unique IMEI (International Mobile Equipment Identity) number. You

should keep a copy of this number. If your device is stolen, your network provider can

use your IMEI number to stop the device from accessing the network in your country.

To view your IMEI number

Turn off your device, then remove the battery cover and battery to view your IMEI

number.

Open the phone dialer on your device and enter

*#06#*

.

To view your IMEI number in the device

1

From your Home screen, tap .

2

Find and tap

Settings > About phone > Status.

3

Scroll to

IMEI to view the IMEI number.

SIM card protection

The SIM card lock only protects your subscription. Your device will still work with a new

SIM card. If the SIM card lock is on, you have to enter a PIN (Personal Identity Number).

If you enter your PIN incorrectly more times than the maximum number of attempts

allowed, your SIM card will become blocked. You need to enter your PUK (Personal

Unblocking Key) and then a new PIN. Your PIN, PIN2 and PUK are supplied by your

network operator.

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To enable the SIM card PIN lock

1

From the Home screen, tap . .

2

Find and tap

Settings > Security > Set up SIM card lock.

3

Tap

Lock SIM card.

4

Enter the SIM card PIN and tap

OK.

To change the SIM card PIN

1

From the Home screen, tap . .

2

Find and tap

Settings > Security > Set up SIM card lock.

3

Tap

Change SIM PIN.

4

Enter the old SIM card PIN and tap

OK.

5

Enter the new SIM card PIN and tap

OK.

6

Retype the new SIM card PIN and tap

OK.

To change the SIM card PIN2

1

From the Home screen, tap .

2

Find and tap

Settings > Call settings

3

Tap

Fixed dialing numbers > Change PIN2.

4

Enter the old SIM card PIN2 and tap

OK.

5

Enter the new SIM card PIN2 and tap

OK.

6

Confirm the new PIN2 and tap

OK.

To unlock a locked SIM card

1

When

Enter PUK and new PIN code. appears, enter the PUK code.

2

Enter a new PIN code and tap

OK.

3

Re-enter the new PIN code and tap

OK.

If you enter an incorrect PUK code too many times, the SIM card becomes locked. If this

happens, contact your service provider to get a new SIM card.

Setting a screen lock

There are several ways to lock your device screen. For example, you can use the Face

Unlock feature, which uses a picture of your face to unlock the screen. You can also set

a screen unlock pattern, a number-based PIN lock, or a text-based password.

To set a screen lock

1

From your Home screen, tap >

Settings > Security > Screen lock.

2

Select an option.

To set up the Face Unlock feature

1

From your Home screen, tap >

Settings > Security > Screen lock.

2

Tap

Face Unlock, then follow the instructions on your device to capture your face.

3

After your face is successfully captured, tap

Continue.

4

Select a backup lock method and follow the instructions in the device to complete

the setup.

The Face Unlock feature is less secure than a screen lock pattern, PIN, or password. Someone

who looks similar to you could unlock your device.

For best results, capture your face in an indoor area that is well lit but not too bright, and hold

the device at eye level.

To unlock the screen using the Face Unlock feature

1

Activate the screen.

2

Look at your device from the same angle you used to capture your Face Unlock

photo.

If the Face Unlock feature fails to recognize your face, you need to draw the backup pattern or

enter the PIN to unlock the screen.

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To disable the Face Unlock feature

1

From your Home screen, tap >

Settings > Security > Screen lock.

2

Draw your backup screen unlock pattern or enter your PIN.

3

Tap

Swipe.

To create a screen unlock pattern

1

From the Home screen, tap .

2

Find and tap

Settings > Security > Screen lock > Pattern.

3

Follow the instructions in your device. You are asked to select a security question

that will be used to unlock the device if you forget your screen unlock pattern.

To unlock the screen using a screen unlock pattern

1

Activate the screen.

2

Draw your screen unlock pattern.

If the unlock pattern you draw on the screen is rejected five times in a row, you can select to

either wait 30 seconds and then try again, or to answer the security question you have

selected.

To change the screen unlock pattern

1

From your Home screen, tap .

2

Find and tap

Settings > Security > Screen lock.

3

Draw your screen unlock pattern.

4

Tap

Pattern.

5

Follow the instructions in your device.

To disable the screen unlock pattern

1

From your Home screen, tap >

Settings > Security > Screen lock.

2

Draw the screen unlock pattern.

3

Tap

Swipe.

To create a screen unlock PIN

1

From your Home screen, tap >

Settings > Security > Screen lock > PIN.

2

Enter a numeric PIN.

3

If necessary, tap

to minimize the keyboard.

4

Tap

Continue.

5

Re-enter and confirm your PIN.

6

If necessary, tap

to minimize the keyboard.

7

Tap

OK.

To disable the screen unlock PIN

1

From your Home screen, tap >

Settings > Security > Screen lock.

2

Enter your PIN, then tap

Next.

3

Tap

Swipe.

To create a screen lock password

1

From your Home screen, tap >

Settings > Security > Screen lock > Password.

2

Enter a password.

3

If necessary, tap

to minimize the keyboard.

4

Tap

Continue.

5

Re-enter and confirm your password.

6

If necessary, tap

to minimize the keyboard.

7

Tap

OK.

To disable the screen unlock password

1

From your Home screen, tap >

Settings > Security > Screen lock.

2

Enter your password and tap

Continue.

3

Tap

Swipe.

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