How to save SHSH blobs for iPhone, iPad and iPod touch via TinyUmbrella beta and prepare for downgrades

Semaphone has recently rolled out a beta version of his popular TinyUmbrella tool for OS X and Windows. The tool, which helps downgrading to previous iOS version, has been completely rewritten and requires Java.

This release is quite significant for the jailbreak community. Using the TinyUmbrella beta you can save your SHSH blobs for your iPhone, iPad or iPod touch models.

Check out the following guide if to learn how to save SHSH blobs for your iOS device.

How to install TinyUmbrella beta

You should install iTunes on your system to use Tiny Umbrella

Step-1: Download the TinyUmbrella for your system. If you are a Mac user, mount the Volume and drag TinyUmbrella.app to your Application folder

Step-2: As TinyUmbrella requires Java, ensure that JRE 8.0 is installed on your machine. Click here to download the latest version of Java.

How to save SHSH blobs with TinyUmbrela beta

Step-1: Launch TinyUmbrella

Step-2: Connect you iOS device to the PC using USB cable. TinyUmbrella should automatically recognise it and start downloading the SHSH blobs for the firmware Apple is currently signing

You might force TinyUmbrella to pull an OTA SHSH blob by clicking the Fetch OTA button.

Note: TinyUmbrella will try to fetch all signed blobs on each startup.

Where to find blobs on the computer

The SHSH blobs are saved here; ~/.tu/.shsh

Types of SHSH blobs

There are three types of SHSH blobs you will find in TinyUmbrella beta which include

• Update (Restore)
• Erase (Restore)
• OTA

Each of these blobs is identified by the Type column in the list of blobs.

Why blobs did not download

TinyUmbrella can only download blobs for the firmware which Apple is currently signing. If your iOS device is on firmware such as iOS 8.1.2, TinyUmbrella will not download the iOS 8.1.2 blobs as Apple has blocked the window for this firmware.

How to clear TinyUmbrella history

Tiny Umbrella keeps a log of devices that are connected to your PC while the application is running. This in turn allows to pin Apple servers and download SHSH blobs without connecting a device to the PC. You can delete the history of devices that you have connected by navigating to the following location.

~/.tu/.known_devices

Downgrade not possible

As confirmed by Semaphore, the developer of TinyUmbrella, the tool will not be able to downgrade but you can save SHSH blobs for the firmware you wish to.

[Source: iDownloadblog]