There are hundreds of network operators around the globe that lock their phones onto their networks. So we unlock the SIM locks from the phone so that you can use any network you please.
Unlocking your phone will give you freedom to purchase or use a SIM card from another network in your own country or even worldwide. Unlocking your phone will give you the opportunity to change the SIM card to a local provider when abroad, allowing much cheaper calls. It will also increase the value of your phone if you sell it.