For those who don't know - Apple added a new security system called ECID (Exclusive Chip ID) which is unique for all devices. iPhone 3GS, iPad, iPod Touch 3G, iPod Touch 2G MC and almost every upcoming iDevice is affected by this security. What this security does is when someone updates their iPhone 3GS, iPad, iPod Touch 3G, and iTouch 2G MC to a newer firmware without saving ECID SHSH blobs, they not only lose their jailbreak but also lose the ability to downgrade their iDevice to an older firmware. But if you have ECID SHSH saved for an older firmware, you’ll always be able to restore back to that firmware and then jailbreak\unlock your iPhone, iPad, iTouch.
The Spirit jailbreak for iPad 3.2, iPhone 3.1.3 and iPod Touch 3.1.3 is expected to release soon. GeoHot has also demonstrated iPad 3.2 jailbreak with blackra1n and we've heard of his recently registered new website limera1n. It’s the best time to save SHSH blobs for your iPad, iPhone 3GS and iPod Touch 3G to secure your future jailbreak because Apple may release a new firmware update soon after the jailbreak is out to patch the exploit used.
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In order to save SHSH blobs for iPhone 3GS, iPad and iPod Touch 3G, you can either use AutoSHSH RC2 or Umrella. AutoSHSH involves just a single click while the Umbrella utility involves a few steps to backup your ECID SHSH on file.
Download AutoSHSH RC2 here.
Follow the guides linked below:
- How to: Save SHSH blobs with AutoSHSH
- How to: Save SHSH blobs with Umrella
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