I found a 3g 16gb iPhone that someone is selling for $200. The screen is in awesome condition, and has a shield. Jailbroken and unlocked. But the only thing is that he says there is a screw loose on the sim HOUSING so it wont register any sim cards. But he tells me its an easy fix, and he'll give me the tool set to take it apart and fix it. I plan on buying it, fixing it, and reselling it. Can anyone tell me how hard of a fix this is? And would it be worth it for me? I just sold my 3g 16gb for $340. So I could make some decent money fast. Thanks for the help.