To perform a factory data reset
To avoid permanent damage to your device, do not restart your device while a reset
procedure is underway.
1From your Home screen, tap .
2Find and tap Settings > Backup & reset.
3Tap Factory data reset.
4If you also want to erase data such as pictures and music, which is saved to
your device's internal storage, mark the Erase internal storage checkbox.
5Tap Reset phone.
6To confirm, tap Erase everything.
Locking and protecting your device

IMEI number

Every phone has a unique IMEI (International Mobile Equipment Identity) number. You
should keep a copy of this number. If your phone is stolen, your network provider can
use your IMEI number to stop the phone from accessing the network in your country.
To view your IMEI number
•Remove the cover to view your IMEI number.
•Open the phone dialer on your device and enter *#06#*.
To view your IMEI number in the phone
1From your Home screen, tap .
2Find and tap Settings > About phone > Status.
3Scroll 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.
To enable the SIM card PIN lock
1From the Home screen, tap .
2Find and tap Settings > Security > Set up SIM card lock > Lock SIM card.
3Enter the SIM card PIN and tap OK.
To change the SIM card PIN
1From the Home screen, tap .
2Find and tap Settings > Security > Set up SIM card lock > Change SIM PIN.
3Enter the old SIM card PIN and tap OK.
4Enter the new SIM card PIN and tap OK.
5Re-type the new SIM card PIN and tap OK.
114
This is an Internet version of this publication. © Print only for private use.