Unbelievably simple! I am going on maternity leave in 2 days and switching carriers as I will no longer have my business cellular plan. The guys in the mall shops want $99 to unlock a phone, I decided to look online and found cellunlocker for substantially less. It took only 25 minutes in between submitting my payment to having an email sent me to with the unlocking code. Once I had the code, it took less than a minute to unlock my phone and have it connected to my new network. I will definitely be back if I need another phone unlocked in the future.