You will need
  • The IMEI number of your phone; a special program that generates codes; the set of cables; programmer; emulator card Clone Card.
Search the Internet fresh software generation and download you need for your phone (in General, these programs pay).
Connect the dedicated cable to the phone, enter all the necessary parameters, and the program itself will give the command to removing SIM-lock.
For some phones you will need to desolder the ROM memory, then read it with programmer, to find a piece of "firmware", which is responsible for the SIM lock, and to correctly fix it.