Good day to you. I have a problem: I bought on ebay two Galaxy S IV i337 for me and my friend (we live outside the U.S. in Ukraine). When they arrived I took the instructions to unlock to use with our sim cards ( here is it http://www.droidviews.com/how-to-sim-unlock-t-mobile-att-galaxy-s4-sgh-m919-sgh-i337/ ), but I do not quite succeed. On one phone worked and I was able to turn it on with the sim card of our service. Other one did not work - is constantly request the unlock code. Help please. Thank you.
You're not going to get any help on these forums. Unfortunately AT&T only supports unlocking for their customers (and even then there are quite a few restrictions). On top of that, unsanctioned unlocking has been made illegal in the US. Your best bet would be checking over at XDA forums.
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