Sund0wn downgrade iPhone 4 to any iOS 7 version with or without shsh blobs
A new software was released still not work in recent devices but can be very useful for icloud bypass iphone 4 locked in ios 7.1.2 this new software can downgrade any ios7 to any ios 7, or 6 version. Sund0wn is a program that allows you to downgrade your iPhone 4 to any version of iOS 7 by patching an ipsw file. In order to restore an IPSW that has been patched by Sund0wn you need to be in pwned DFU and iTunes must be 11.0.5 needs to be installed. In order to run Sund0wn .NET framework 4.5 or higher needs to be installed too. the good thing on this is you can downgrade your iPhone 4 to any iOS 7 version with or without shsh blobs. this is a tethered downgrade, what it means ? if you need boot your iphone, ipad, or ipod you will need Redsn0w jailbreak boot tethered to boot the device. tks to @iSuns9
Sund0wn Downgrade to iOS 7 for the first time!
Use Tinyumbrella to start TSS server and make sure to have iTunes 11.0.5 installed.
Downgrade iPhone 4 to any iOS 7 version with or without shsh blobs Sund0wn here is a screenshot and a download link :