![]() ![]() Step 2) – Once the TSS Server has been enabled you will need to launch iTunes. You will need to once again launch TinyUmbrella, plug in your iDevice into your computer and click the Start TSS Server button. Step 1) – When you have your SHSH blobs saved, and actually want to make use of them to downgrade your iDevice to a lower firmware version. Learning How To Downgrade Your iDevice With TinyUmbrella When you Uncheck Request SHSH From Cydia go back to step 1 and try saving your SHSH blobs again. Go into the Advanced Tab and uncheck the following: When you are sure your firmware version is still being signed by Apple you may need to do the following: You can double check this at the developer of TinyUmbrellas website. If you did not get success with saving your SHSH blobs you may need to double check that Apple is still signing your firmware version. If all went well, you have now saved your SHSH blobs for the firmware version you are currently running. When the process is complete you should notice a list of saved SHSH blobs. Step 4) – Once you click on your iDevice you will need to simply click the Save SHSH button in the top right hand corner of the screen and TinyUmbrella will begin saving your available SHSH blob. Upon doing so TinyUmbrella will detect it in the connected devices tab.Ĭlick on your iDevice in the connected devices tab now. Step 3) – The next thing you will need to do is plug your iDevice into your computer (if you have not already). Step 2) – Once you download TinyUmbrella to your computer launch it and you should be presented with the interface show below. You can do so by clicking here (scroll down to TinyUmbrella section and download the version that is bold). Step 1) – The first thing you will need to do is download TinyUmbrella to your computer. ![]() Learn How To Save Your SHSH Blobs With TinyUmbrella Now that you know a little bit more about SHSH blobs we will get right down into learning how to save your SHSH blobs. Thus, saving your SHSH blobs is the only way to trick this security system put in place by Apple (Thanks iPadForums). You see, each time you try and restore or update your iDevice SHSH blobs are compared to one-another to verify that you are not trying to downgrade your iDevice’s firmware. Meaning, in not so technical terms, SHSH blobs are the magic key to restoring or updating your iDevice. Each individual signature created is termed a SHSH blob, or blob for short. SHSH stands for Signature HaSH and it is a 128-byte RSA signature (a random string of numbers and letters), used in this case by Apple as a technique to verify if your iDevice can be restored or updated. What are SHSH Blobs and What Do They Stand For? Having the ability to downgrade your iDevice’s firmware is useful for a number of reasons the most important reason being if you accidentally upgrade to a firmware version that cannot be Jailbroken. Where if you did not save your SHSH blobs on the iOS 4.3.3 firmware you could not of downgraded back from the iOS 4.3.4 firmware to the iOS 4.3.3 firmware. You could easily downgrade back to the iOS 4.3.3 firmware. Meaning if you saved your SHSH blobs for iOS 4.3.3, but accidentally update to the iOS 4.3.4 firmware. Saving your SHSH blobs allows you to restore your iDevice to a lower firmware versions you are currently running. So, without further hesitation let’s get into a couple frequently asked questions and then we will get right down to business. Saving your SHSH blobs is not necessarily a complicated process, but with many new Jailbreakers joining the Jailbreaking Community everyday I thought it may be a good idea to write a generalized guide for saving your SHSH blobs with TinyUmbrella (I plan on doing a tutorial for iFath in the near future as well). ![]()
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