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afterdawn.com > forums > mobile devices > iphone - unlocking and hacking > possible to upgrade 4.1 to 4.2.1 without shsh?
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Possible to upgrade 4.1 to 4.2.1 without SHSH?
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random999
Member
_ 		21. March 2011 @ 23:23 _ Link to this message    Send private message to this user   
I've done a bit of searching and have done some reading on the subject of jailbreaking. I am currently running iOS 4.1, but have not backed up any SHSH blobs. My understanding is that since Apple has stopped signing 4.2.1, does that mean that I'm SOL and might as well just upgrade to iOS 4.3 and back up that SHSH for the future? Or can I still upgrade to 4.2.1 using Green Poison's untethered jailbreak?
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youeatpoo
Junior Member

1 product review
_ 		26. March 2011 @ 13:48 _ Link to this message    Send private message to this user   
I would also like to know if there is a method that allows to restore 4.2.1 without blobs as i didn't know you couldn't do a data wipe on the phone only which makes the phone need a restore if you are jailbroken. If there is no such possible way is there a way to downgrade from 4.3 without blobs? Or is it possible to use the blobs of another phone to install 4.2.1?
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This message has been edited since posting. Last time this message was edited on 26. March 2011 @ 13:49
DA5101
Newbie
_ 		28. March 2011 @ 21:54 _ Link to this message    Send private message to this user   
Originally posted by random999:
 I've done a bit of searching and have done some reading on the subject of jailbreaking. I am currently running iOS 4.1, but have not backed up any SHSH blobs. My understanding is that since Apple has stopped signing 4.2.1, does that mean that I'm SOL and might as well just upgrade to iOS 4.3 and back up that SHSH for the future? Or can I still upgrade to 4.2.1 using Green Poison's untethered jailbreak?
Yes same issue aswell i had saved 4.1 and 4.3.1 and 4.3 SHSH Blobs and downgraded to 4.1 but would like to upgrade to 4.2.1 for some unkown reason Tiny Umbrella couldnt find 4.2GM 4.2.1GM 4.3b1 4.3b2 4.3b3. Can i upgrade to 4.2.1 without apple signing 4.2.1 anymore without the blobs.
Want to use 4.2.1 jailbreak.
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Lethal_B
Moderator
_ 		27. April 2011 @ 22:58 _ Link to this message    Send private message to this user   
You can't use the blobs of another iPhone. Additionally you can't back up the blobs once Apple ceases signing them. So the key really is to upgrade when the untethered jb comes out and save your SHSH blobs, allowing you to change firmware versions as you please.

DA5101, you won't be able to upgrade to 4.2.1 without saved blobs. Currently Apple is only signing the latest, 4.3.2 version of iOS.

I upgraded to 4.3.1 with redsn0w rc12, and it was cack, so downgraded back to 4.2.1.
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afterdawn.com > forums > mobile devices > iphone - unlocking and hacking > possible to upgrade 4.1 to 4.2.1 without shsh?
 

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