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Hello, I have a galaxy S4 sgh-i337,and for some reasoni can´t unlock carrier. I have a code from AT&T, bu bot working. can i swap mainboard with another model unlocked (not an AT&T)? help lease Thanks Vitor
You should be able to swap a t-mobile board into an AT&T s4. Other carriers boards will not fit. You should just sell your phone and then buy an unlocked s4, its much easier than trying to buy a motherboard.
help me usb way samsung SGH-I337 and charging problem
