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Under the General Category of the Settings Tab on the iPhone 4, I see that the Model is listed as MC318LL/A. Will this model number support the repair kit purported to work with the GSM/CDMA model? I need a black back unit and a front screen.

Kevin B, what you have is a Apple iPhone 4 (GSM). Here are the parts that ifixit has for your phone. Hope this helps, good luck.

look on the back at the bottom. Find the letter/number combination, eg. A1349, A1387, etc. Look it up in a search engine