First of all you need to understand that Apple knows everything you do with your iPhone and iTunes. Yeah, not such a major privacy invasion as it sounds but still… No matter if you do a upgrade, recovery, downgrade of the firmware, the entire process starts to communicate with the Apple servers via iTunes. In case of the iPhone 3Gs, iTunes sends to Apple a certificate in order for the phone to be verified. If, during this “test” , the certificate fails to respond clearly , the server tells iTunes to return an error. If the certificate responds as it should, the firmware is installed flawlessly
You already know that when it comes to jailbreking the iPhone 3Gs, you wont have nothing but headaches. ECID file, IBSS and IBEC files… omg the pain!!! To tell you the truth i wasn’t quite sure what all this means , but i had a vague idea. I asked around, and decided to pass the informations to you guys, as simple and clear as possible.
As you know, i dont have a 3Gs yet, and if this BS will continue, and jailbreaking will continue to be such a hustle, i will pass this model and ill wait for the next model: 64 gigs. I really can live without upgrading ( the only feature that excites me, is that 3Gs can (natively) video record ). Anyway, all the information you will find in this article is related ONLY to the iPhone 3Gs. If you own a EDGE/3G you can chill and just read this for your own knowledge.

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