As we know Apple has released iOS 4.3.1 for iPhone 3 iPhone 3GS, iPad 1 & 2 and iPod Touch 3G & 4G. Notcom has updated his Tiny Umbrella tool. Now it supports the latest iOS 4.3.1 firmware. TinyUmbrella 4.30.05 allows you to save SHSH blobs of iOS 4.3.1. Find the download links below.
According to the developer, it seems like they have closed iOS 4.3 signing. Its better and recommended to save SHSH blobs of the current version.
This is what the developer has updated on his blog:
TinyUmbrella now supports 4.3.1 for the relevant devices. Currently only iPhone 4 for verizon does not have 4.3.1 support (as there is no 4.3.1 available for the verizon iphone). Enjoy!
For the people who are unaware of what are SHSH blobs and why saving them is important:
What are SHSH Blobs?
For the people who are not familiar, SHSH Blob is a signature verification file against Apple Server. It verifies that the iDevice is running the latest version of iOS. Saving SHSH blobs will allow you to restore to previous version. While doing so Apple will stop you doing the restore process. To make this happen you have send a request to different servers which forwards SHSH blobs to iTunes by just showing it that its a new version of iOS. This is how TinyUmbrella or iSHSHIT works to help you save SHSH blobs.
Download TinyUmbrella 4.30.05 for iOS 4.3.1
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