Does Apple Sign iOS 8.1.3 Or Not?
You might be lucky if you had time to save iOS 8.1.3 SHSH blobs with TinyUmbrella because Apple stopped signing iOS 8.1.3. What does it mean? You cannot downgrade from iOS 8.2 to 8.1.3 any more, sadly you are not able to do this even with blobs saved.
At the time there is no way for users with the iPhone or iPad to install a previous firmware version if it is not signed by the Cupertino-based giant. Why are you lucky then? TinyUmbrella creator, dev @notcom believes that it could be possible to perform downgrade in the future but only if you have the blobs saved.
Does Apple sign iOS 8.1.3? No, Apple has stopped doing this. If you are running iOS 8.1.3 which can’t be jailbroken right now you can easily update to iOS 8.2 [learn how to install iOS 8.2 on your iDevice] as you risk nothing since this version cannot be jailbroken as well.
Hackers are most likely working on jailbreaking 8.2 version. They have a big gathering in March where they might discuss the current issues and problems of this process. Apple is working hard to make its firmware unjailbreakable. When presenting the new OS it even mentioned that TaiG exploits were patched which also led to PP Jailbreak not working any more on 8.2 update.
With the soon arrival of the Apple Watch there will be iOS 8.3 upgrade with new features, specs and maybe the community is working on 8.3 jailbreak to present users with a solution to untether or tether this version of mobile operating system for iDevices. We will follow all the news and share information on this topic with you.