iPhone 4S Repair

Fifth generation of iPhone. Repair of this device is straightforward, and requires screwdrivers, prying tools, and patience. GSM/CDMA / 16, 32, or 64 GB / Black or White.

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How to identify which carrier a logic board is

I need to replace a logic board in a iPhone 4S CDMA/Verizon. I wanted to know by looking at the logic board how can i identify what carrier it is for.

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Carrie, if you mean you are looking to see if the board is Verizon, Sprint etc. You can not. That is part of the firmware.

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Ahh man that sucks. So you're telling me I have to try each board to find out?

by Carrie

that is correct, you will not see any difference on the board.

by oldturkey03

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You can look at the serial number. If the last 4 characters are the same, then it's the same model.

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Carrie will be eternally grateful.