How can I tell if my iPhone is CDMA or GSM?
Hi, I purchased an Unlocked iPhone 4. How can I tell if it is a CDMA or GSM before I buy the screen replacement?
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Rick, The GSM phone has a SIM card, the CDMA does not. The SIM card tray is located on the right side of the mid-frame. There is more on how to identify your phone on here. Hope this helps, good luck.
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CDMA phones have no sim tray on side and a model number on rear case tha reads 1337 or 1339.
GSM phones have a "micro" sim tray on the right hand side of case and carry a model number of1332 on the rear
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If your sure it's a 4 and not a 4 s the way to tell is if it has a sim card tray on the side of the phone it would be a GSM phone. Another way to tell would be to use the Apple web site to ID it using your serial number on the back.
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