So what’s the point of saving iOS 5.0.1 SHSH blobs? Well, as everyone know, Apple will release iOS
5.0.2 5.1 in the next few days to kill pod2g’s jailbreak exploit and prevent iPhone 4S and iPad 2 jailbreak again. So in case that happens (and it will), you must have iOS 5.0.1 SHSH blobs saved to be able to downgrade back (or update) to iOS 5.0.1 which is the only firmware after iOS 5.0.1 that can get untethered jailbreak.
How to Save SHSH Blobs for iOS 5.0.1
Run the TinyUmbrella that you downloaded in the Step 1.
(Mac users: Copy the app to your desktop or you’ll get repeating password prompts if you ran the app from within the DMG)
Now Connect your iPad, iPad 2,iPhone 4, iPhone 4s, iPhone 3Gs, iPod Touch 3G to your computer.
TinyUmbrella will auto detect your connected device and its ECID.
Now Simply Hit the Save SHSH button and TinyUmbrella will grab SHSH blobs for your device.
This will also generate a ticket to save SHSH blobs to Saurik’s server.
All Done! You have secured your future jailbreak by saving SHSH blobs for iOS 5.0.1 using TinyUmbrella.
You can find the saved SHSH file under:
MAC: /Users//.shsh (ex: /Users/gdeluxe/.shsh)
WINDOWS XP: :Documents and Settings\.shsh
(ex: C:Documents and Settingsgdeluxe.shsh)
WINDOWS 7: :Users\.shsh (ex: C:Userssemaphore.shsh)