Save iOS 6.1 SHSH Blobs For Future Software Downgrade

By Anu Passary email: a.passary@mobilenapps.com | Feb 07, 2013 11:43 AM EST

Tags jailbreak, evasi0n, iOS 6.1, Apple, iPhone

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The eagerly awaited evasi0n untethered jailbreak for iOS 6.0/6.1 was released recently and you would do well to safeguard existing jailbreak apps and tweaks for future use by saving the SHSH blobs.

In case you're wondering what are SHSH blobs, for the uninitiated, these files are must haves if you ever want to downgrade to iOS 6.1 once a newer firmware is released. In case the SHSH blobs are not saved, then you wouldn't be able to restore the original firmware and get back the older jailbreak apps and tweaks.

Apple has been pretty proactive in releasing software updates for iOS and closes the firmware signing window quickly as well. Therefore, once the new firmware for iOS is released, you could be too late in saving the blobs.

Here is a step-by-step guide to help you through the process of saving iOS 6.1 SHSH blobs.

Step 1: Download TinyUmbrella for Windows, Linux, or Mac to your PC.

Step 2: Next, save the downloaded TinyUmbrella file to your desktop. Next, double-click the app icon to start initialization, which may take a couple of seconds.

Step 3: Next, connect your iDevice (iPad, iPhone, or iPod touch) to the PC with the USB cable to save its SHSH blobs.

Step 4: Go to the top-left-hand corner of TinyUmbrella app, and under Connected Device you will see Select Device. Click on the Select Device.

Step 5: Next, tap Advanced tab and uncheck the following options:

- Save ALL Available SHSH

- Request SHSH from Cydia

Step 6: Next, change the save SHSH directory to SHSH folder on the desktop, which will help you to find the backed up SHSH blobs easily.

Step 7: Next, click the Log tab so that you can view the status of the save attempts for SHSH blobs.

Step 8: Proceed to saving the blobs. Clock on save SHSH and TinyUmbrella will try to save the SHSH blobs for iOS 6.1 (or the latest iOS firmware) to the directory you created in Step 6. You will receive a message that reads "SHSH SUCCESSFULLY SAVED" if everything worked correctly.

Step 9: Next, open the SHSH folder on the desktop (created in Step 6) and verify if the required SHSH blob is available. Check to see if the blob is named correctly with the right device name and firmware version number.

The instructions provided in this tutorial are valid only for currently signed firmware only. It does not recover previously saved SHSH blobs that Apple is no longer signing. However, in case you want to recover previously saved SHSH blobs that Apple is not signing, you can keep the options in Step 5 checked.

We suggest that you back up the folder which contains SHSH blobs periodically and to a safer location. In the scenario your device becomes inaccessible; you can restore the SHSH blobs from the backed-up location.

For additional help on how to save the SHSH blobs, check the video tutorial below.