Backed up 3gs before ios6, can I get blobs from it?

[nedkelly]

So as the title says I backed up my iPhone 3gs to my MBP via iTunes before I updated to ios6, I did not do any shsh blob backups before (wish I had now), I want to downgrade to ios5 because my phone is running slow now.
Is there anyway that I can get the blobs from the backup?

 

[willerz2]

If your device was jailbroken and you ran Cydia at least once back in iOS 5, you can retrieve your SHSH blobs from Cydia's server using TinyUmbrella.

 

[nedkelly]

Not good, was hoping I could do it from the backup as I had not used Cydia on it.

 

[Thomasjtsi]

Not good, was hoping I could do it from the backup as I had not used Cydia on it.

Unfortunately no, your iTunes backup does not save SHSH's. Cydia's server does it automatically when you're JB & you can do it manually using TinyUmbrella. Those only apply to when Apple is actually signing that particular iOS version. Which iOS 5.x.x is no longer being signed.