Call Of Duty Modern Warfare Keygen Download. Simply insert a SIM card from another vendor (you can order it for free from a phone or online store) and see if the name of the network appears on your handset. Here in Brazil it is illegal to lock the user a carrier so that they no longer lock phones (as far as I know), you only sign the x-year contract. But although cell phones have been a major part of our lives for the greatest possible degree of 20 years, confusion is still surrounded by the process I know. Samsung smartphones should not be locked again (that is, if you have already unlocked it should now be locked up permanently). In fact, many countries have mobile phone transfer laws that make it illegal for a company to lock a phone to a particular account (although these laws seem to change frequently).