I currently own a 4.0'd 3GS and I'm not happy with 4.0. Unfortunately, I didnt save my ECID with saurik 
(I will in the future!) so I'm stuck here. I was thinking about buying a new 3GS off ebay which is still @ 3.1.2. If I do that, how do I go about activating the new one and deactivating the old one? Is it as simple as swapping SIM cards? Or is there more involved? Thanks in advance.
(I will in the future!) so I'm stuck here. I was thinking about buying a new 3GS off ebay which is still @ 3.1.2. If I do that, how do I go about activating the new one and deactivating the old one? Is it as simple as swapping SIM cards? Or is there more involved? Thanks in advance.