It seems like such a long time ago that we could downgrade our iOS devices to an earlier firmware and some users didn’t understand why we wanted to do it; only those who made use of Cydia saw the sense. All of those will be very familiar with a tool called TinyUmbrella, a very small yet very powerful tool. Tiny Umbrella was the means to saving our SHSH blobs so they could be turned into custom firmware files to aid in the downgrade.
This was possible because of a loophole in the iOS that Apple patched some time ago. While this app can no longer be used for downgrading, at least not right now, it can still be used for saving the iOS blobs and it has been updated with support for the latest iOS versions. To be ready for when that update comes, for the time when we can downgrade again, we need to start saving our SHSH blobs now.
How to Save SHSH Blobs :
TinyUmbrella app supports Windows and Mac so download the version that corresponds to your computer:
Using it is easy:
- Connect your iPhone or iPad to your computer and launch the app
- Wait for it to detect your device , if this doesn’t happen, disconnect it, and try again
- When your device has been detected, the app will automatically detect and save any SHSH blobs on your device to an external file.
Things to Remember :
- The app can only download SHSH for a firmware that Apple is still signing. So, if you are running an old iOS firmware that has been superseded by another then you cant save the blobs for it. You must get into the habit of using the app immediately you update the firmware on your device.
- The app saves all your blobs into one external file called ~/.tu .shsh
- This app also records details of known devices. You can find this at ~/.tu/ .known_devices
- Lastly, there are three different type of SHSH blob – OTA, Update (Restore) and Erase (Restore).
Please keep in mind that TinyUmbrella is awaiting an update that will allow you to start using your blobs to downgrade your firmware. We don’t know when that update will happen, only that the developer is actively searching for the right downgrade method. Until then, use the app every time your firmware is updated and stay in touch with the latest developments by following us on Facebook.