iPhone 3G

[iMore Question]

Hi . Just bought a second hand iphone 3G ,when I got it home I found it locked. Went into iTunes and it tells me my sim is not supported
How do I unlock it to use my sim in the iPhone, thanks alan

 

[iHackPro]

Ouch, iPhone 3G.

What carrier are you trying to use, and is the phone carrier unlocked?