Instructions on how to use the code and how to unlock Samsung Galaxy S6 Edge handset: After you receive the code, all you need to do is to insert another SIM card into your phone and wait for your phone to read âEnter unlock codeâ or âPin Network Unlock Codeâ.Then insert the code and your phone will be unlocked.Recent unlocked phones: 1  A853.fter you receive the code, all you need to do is to insert another SIM card into your phone and wait for your phone to read âEnter unlock codeâ or âPin Network Unlock Codeâ. Then insert the code and your phone will be unlocked. Recent unlocked phones: 1  A853.