Originally Posted by waranty92
Is it possible to unlock Samsung SM-G900A - from AT&T and use different sim card in another country
I'm not sure, but maybe you can ask the AT&T customer care to give you the unlock code as well as the method to do it.
That's what I tried for my S2 and S3. I had them under contract. And if you buy it without contract, shouldn't it be unlocked already? Just curious!
I'll ask about the unlock process to AT&T tomorrow and let you know if the same trick works or not
Unless I'm not mistaken, you are not talking about rooting the device already, are you!