The unlocking operation of your phone is performed by the phone carrier company from where you bought it. In some countries this is a free server but in the others you may have to pay a small fee to get it done. Another way to solve this problem is by visiting a phone service store where a qualified technician can unlock it again for a very small fee. The phone doesn't support a utility publicly available for users used to unlock it in a simple way. Also if you manage to get the unlock code from a paid service then use these steps to unlock your phone:
- Insert the blocked SIM card
- Power on the phone and it will display
Phone restricted
- Select
Cancel
and it will require you enter restriction code
- Enter the code you received
- Select
OK
and the phone is now unlocked
- Power on the phone with your original SIM car
- Enter
2945#*180#
- A menu will pop up, then select
UNLOCK USIM
then Network
- Enter the received code and press OK
- Now your phone is unlocked.