Ipad 2 + 3G and the Jailbreak (SHSH Blobs)

[scav]

So I have a jailbroken 32GB AT+T Ipad 2 and have a question that I just can't seem to find a definitive answer to.

I have saved my SHSH blobs for 4.3.3 through TinyUmbrella but I have read in multiple places that I won't be able to downgrade to 4.3.3 once apple stops signing it and comes out with 4.3.4 because of the Ipad Baseband. Now that makes sense to me but what I am wondering is this: can I still restore my ipad that is on 4.3.3 with the 4.3.3 firmware and so not lose the jailbreak even after Apples stops signing 4.3.3.? I hope this makes sense, I am not talking about downgrading from 4.3.4 to 4.3.3 or anything like that, just restoring to the same firmware.

 

[hackthatphone]

You can make a custom firmware to go back to 4.3.3 even with ipad bb if you have the shsh for 4.3.3.

 

[scav]

ok I found something that explains this better I think

http://hermanbanken.nl/2011/07/02/ipad-2jailbreakme-3-0-faq/

I have an iPad 2 3G, what’s the problem?

Your iPad has a modem/baseband that runs a different firmware from iOS. It is being signed as well, but you cannot save the SHSH blobs for it. That is because each time you ask for a verification (when restoring), Apple will create “random” SHSH blobs, so you can’t actually reuse the SHSH blobs. This is a problem, because iTunes will not be able to sign the baseband, the bootrom will refuse to boot and give you a 1004 error in iTunes. Since all previous iDevices had a bootrom exploit, you could use TinyUmbrella and “Kick Device Out Of Recovery” to boot. This is not possible on the iPad 2 since it has the A5 bootrom which is not yet exploited. You will be stuck in Recovery Mode.

If I understand this well, does that mean that the SHSH blobs for the iPad 2 3G version are useless?

Yes and no. Right now, if Apple stops signing 4.3.3, you won’t be able to downgrade/restore successfully to 4.3.3. But they might find a work around for this baseband problem, and then your SHSH blobs will be useful again. Save them anyway!

So I suppose that means that people with a 3G iPad 2 have to be really really careful

sucks