TinyUmbrella now supports iOS 4 firmware. So, using TinyUmbrella you can save SHSH blobs of iOS 4 for iPhone 3GS and iPhone Touch 3G, 2G. In this guide you’ll learn how to save SHSH blobs for iOS 4.0 firmware with TinyUmbrella in both Windows and Mac OS X (Linux release is little buggy).

What is TinyUmbrella?

TinyUmbrella is a unified version of Firmware Umbrella and TinyTSS. For more details, click here.

Why to Save SHSH Blobs?

If you jailbreak your iPhone/iPod Touch or want to do so in near future, it’s a good idea to save SHSH blobs for iOS 4.0 to secure future jailbreak. The developer of the TinyUmbrella has explained why to save SHSH blobs in details here. Whenever a new firmware comes out Apple stops signing the older firmware which cannot be restored then. But if you’ve SHSH blobs for a firmware, you can always restore back to that one no matter how many firmwares are released after that. Apple will stop signing the current iOS 4 as soon as the new iOS firmware is released, so it’s best time to save SHSH blobs for iOS 4 using the guide below.

This TinyUmbrella guide applies to:

• iPhone 3GS
• iPod Touch 3G
• iPod Touch 2G (with model number MC)

***TinyUmbrella can now save iOS 4.0 SHSH regardless of whether your iDevice is jailbroken.
***You can save SHSH blobs for iOS 4 even if you’re on OS 3.1.3 or older.
***iPhone 3G  and older devices including iPod Touch (Non-MC) users do not need to save SHSH blobs.

Follow the Steps mentioned below to save SHSH blobs of iOS 4 firmware for iPhone 3GS, iPod Touch 3G and iPod Touch 2G (MC).

How to Save SHSH Blobs for iOS 4

Step 1

• Download TinyUmbrella
• Download iTunes 9.2 (iTunes version between 9.0 to 9.2 should work)

Step 2

Windows Users:

Go to start Menu and search for notepad. Run it as administrator.

This will open up the Notepad.exe. Now go to File Menu > Open and browse to the following directory: C:\Windows\System32\drivers\etc

Select the Hosts file from that directory. (Make sure you have chosen to show all files. See the screenshots below.)

Remove any line which contains gs.apple.com, remove it or comment it out by adding # in front of that line then save the file and exit.

Mac Users:

Run the Terminal app from Applications > Utilities and input the following command and hit the enter key:

sudo /Applications/TextEdit.app/Contents/MacOS/TextEdit /etc/hosts

If asked, input your admin password.

TextEdit will open the Hosts file. Remove any line which contains gs.apple.com, remove it or comment it out by adding # in front of that line and save the file then exit.

Step 3

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 iPhone 3GS, iPod Touch 3G or iPod Touch 2G (MC) to your computer

(Click to Zoom)

Step 4

TinyUmbrella will auto detect your connected device and its ECID.

Now Simply Hit the Save My 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.

(Click to Zoom)

All Done! You have secured your future jailbreak by saving SHSH blobs for iOS 4 using TinyUmbrella. You can find the saved SHSH file under User Documents > .shsh folder