written by on 17/09/2014
I searched the internet for weeks looking for a free way to sim unlock my Samsung Galaxy S4 I337 4.4.2 on U.S. AT&T network. AT&T would not give me the unlock code needed for going abroad even though I have been a VALUED customer for 6 years. Never found a reputable way to do it for free online so I broke down and decided to pay for an unlock code. After placing the order, I was told it would take about 6 1\2 hours to get the code. I received an email with the code and VERY detailed instructions 3 hours later. I typed the code into my phone and voila, my phone was unlocked. Thank you gsmliberty!