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Thursday, March 22, 2012

Chinese Hackers Reportedly Hosting SHSH Server that Allows Baseband Downgrade from 4.11.08 to…

Are Chinese hackers outsmarting Apple once again (after developing Gevey SIM, of course)? The server is rumored to allow downgrade of iPhone 4 baseband to 4.10.01 to allow unlocking with Gevey SIM.

I received an email from my suppliers this morning and they told me that there have been rumors of Chinese hackers hosting such SHSH server. The concept of hosting your own SHSH server is not new, but to have one that can downgrade your iPhone 4 baseband is.

If you're new to iPhone unlocking, you should know that you can never downgrade your baseband due to security mechanisms implemented by Apple called BBTicket. This page explains more about this.

The following was the email content I received:

The above text translates:

    "This service is available to those who have mistakenly updated to iOS 5.0 or 5.0.1 and stuck on baseband 4.11.08.

    Software downgrade service: Downgrades to firmware 4.3.5, baseband 04.10.01, no SHSH backup required.

    Guaranteed non-hardware type of downgrade, disassembling is not required, will not break your device in any way. You can put a tamper proof sticker on the screws (to prove that the iPhone is not taken apart)"

Other than that, there's no other description or explanation of how the whole mechanism works. I was also told that one of the parties behind this is probably the developer of Gevey SIM itself.

Come to think of it, this is really sensible because downgrading to 4.10.01 will allow continued sales of Gevey SIM which became obsolete after iOS 5.0 was released back in October 2011. Popular Chinese iDevice forum is also talking about this.

Whoever's behind this is either a genius or a good liar. Stay tuned while I dig more about this.

Post from my iPad 2


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