Once Apple will close the firmware that is signing for windows then it will not be possible for the users to upgrade or to downgrade to iOS 8.3 as Apple will not allow this. Therefore the users will have to settle for the current firmware being offered which is usually the most earlier and latest one. As a result, users who are to be the jail breakers will be willing to downgrade back to 8.3.
Although there is no way out to downgrade to iOS 8.3 version there are a few things that can still give some hope to the users. These ways will ensure a chance to ability to downgrade. The SHSH blobs shall be saved in order to accomplish this goal.To downgrade to iOS 8.3 and protect SHSH blobs you will have to follow the steps stated in this article.
Firstly, if you do not have TinyUmbrella in your device then you must download it in order to accomplish what you have started. TinyUmbrella is a tool that is a combination. Make sure you have iTunes and Java installed in your devices if you are to use TinyUmbrella otherwise it will not work. It is a popular tool which helps to save SHSH blobs and also facilitates in the downgrading process. Once you have successfully downloaded TinyUmbrella, you will see an option to Run it, tap on it and follow the next step. Your iOS device doesn’t necessarily need a jail break for this, just simply connect the device with TinyUmbrella.
Now TinyUmbrella will get to the main work of fetching the SHSH iOS 8.3 blobs and automatically saving them. All of it is saved to one file by the tool and in order to reach that file you might have to find them through the locations mentioned below:
To be on the safe side you must save the blobs before Apple blocks signing the iOS version 8.3. The best is to save the fi 8.3les to a back system as well.