Let’s face it, saving SHSH blobs is no longer an active topic that most people care about.
I remember back in the day (before iOS 7) we received a lot of jailbreak releases and was recommended to use TinyUmbrella to save our SHSH blobs.
Since then, a lot have changed. Apple continues to drop more and more changes to iOS while Jailbreak utilities are always behind. Not everyone here has the most recent iPhone models. Some people still uses older models like the iPhone 4.
That being said, Apple has begun to close signing window of iOS 7.1.1 and soon 7.1.2 will be next brand new operating system.
Luckily, TinyUmbrella was updated on time for this event, which means it now has support for iPhone 4 running iOS 7.1.2. TinyUmbrella 7.12.00 will let iPhone users save their SHSH and use the blobs file to downgrade even if Apple decided to stop signing their firmware.
semaphore aka notcom wrote on his blog:
Finally 7.1.2 iPhone 4 support
Sorry for the delay. TU will now save your (hopefully final) iphone 4 shshs. Let’s hope apple does not ruin the party by releasing a maintenance version of iOS 7!
With 7.1.2 shshs you should be able to permanently jailbreak your device with signed custom 7.1.2 firmware.
Keep those 7.1.2 shshs safe for your iPhone 4!
You can download the latest update of TinyUmbrella for Windows and Mac from here.
How to save SHSH blobs using TinyUmbrella
Step 1: Use the given link we provided earlier and download the latest version
Step 2: Launch TinyUmbrella and Connect your iPhone or iPad to the computer
Step 3: You will see that the tool is now recognizing your device, showing previous blobs as well as downloading all available SHSH blobs being signed by Apple, and Fetch OTA.
As described above, these blob files that you have saved can be used for restoring, updating, or building custom firmware. Additionally, you can also put your iPhone into recovery mode with one of the options included in TinyUmbrella.
Keep in mind, though, just because you have saved your SHSH that doesn’t necessarily means you can downgrade anytime you want. Some restrictions and timing can contribute to this. There are many other alternatives like Beehind, which help you downgrade iOS without blobs.
If you run intro any trouble while using this utility, do check out this video from Jeff Benjamin of iDownloadblog. It will give you a better understanding of how to use TinyUmbrella.