QUOTE(azraeil @ Apr 20 2011, 08:06 PM)
Download TinyUmbrella (for Mac or Windows) http://thefirmwareumbrella.blogspot.com/
TinyUmbrella (TU for short) is a nifty little program, it can do many things but one of the main uses is to save your SHSHs. Usually, it is connected to Cydia as well so that it can recover SHSH that has been saved in Cydia but with the current problems with Cydia, you will need to save the SHSH locally. It's a small file but this file is extremely important.
Say that Apple comes out with iOS 4.4 and you/your friend/your girlfriend accidently upgraded to 4.4 and there is no jailbreak out for 4.4, then you can use TU in conjunction with the SHSH that you have saved locally to downgrade to 4.3.2 and then jailbreak that with redsn0w. Without the 4.3.2 SHSH, you will not be able to downgrade to 4.3.2 once the 4.4 is out. See why saving SHSH is important?
There are many instances where you will need a downgrade such as when Apple comes out with a higher firmware version and your iPhone dies or something went wrong with the phone. The only way to bring the phone back is to restore it to the latest iOS firmware (which, let's say for arguments sake is not jailbreakable at the moment), what do you do? You will need to downgrade and you will need to have the SHSH ready.
It doesn't hurt to save the SHSH, I save them all the time (even for my Ipad 2 even though there is no jailbreak for the iPad 2 at the moment coz you never know what firmware version the dev-team will be able to jailbreak in the future)
TinyUmbrella (TU for short) is a nifty little program, it can do many things but one of the main uses is to save your SHSHs. Usually, it is connected to Cydia as well so that it can recover SHSH that has been saved in Cydia but with the current problems with Cydia, you will need to save the SHSH locally. It's a small file but this file is extremely important.
Say that Apple comes out with iOS 4.4 and you/your friend/your girlfriend accidently upgraded to 4.4 and there is no jailbreak out for 4.4, then you can use TU in conjunction with the SHSH that you have saved locally to downgrade to 4.3.2 and then jailbreak that with redsn0w. Without the 4.3.2 SHSH, you will not be able to downgrade to 4.3.2 once the 4.4 is out. See why saving SHSH is important?
There are many instances where you will need a downgrade such as when Apple comes out with a higher firmware version and your iPhone dies or something went wrong with the phone. The only way to bring the phone back is to restore it to the latest iOS firmware (which, let's say for arguments sake is not jailbreakable at the moment), what do you do? You will need to downgrade and you will need to have the SHSH ready.
It doesn't hurt to save the SHSH, I save them all the time (even for my Ipad 2 even though there is no jailbreak for the iPad 2 at the moment coz you never know what firmware version the dev-team will be able to jailbreak in the future)
QUOTE(YoNgZ @ Apr 20 2011, 11:20 PM)
guyz can i know is it necessary to save shsh blobs? or i can just restore using the itunes restore? simple as that?
Read what azraeil posted. That is the main use of SHSH blobs
Apr 20 2011, 10:22 PM

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