For all of you who wanted to get a taste of iOS 7 on your iPhone by putting your Beta 1 version but now you want to go back to iOS 6 there is a way and it is quite easy.
The following guide will show you how to downgrade from iOS 7 to iOS6. You can only do the latest versions of iOS 6 (ie 6.1.4 for iPhone 5, and 6.1.3 for iPhone 4S) You can not use SHSH Blobs on any A5 + device, they are (temporarily) useless.
Before you start the downgrade, do one backup all your data.
STEP 1o
Download the latest iOS firmware from here.
STEP 2o
Open iTunes.
STEP 3o
Put the iPhone in DFU mode. If you do not know set a video to see how it works
After you do this, you'll be thrown into a message that the iphone has entered recovery mode.
Your iPhone screen will remain black as shown below:
STEP 4o
When the message comes out that iPhone has been in recovery mode, press OK and select iPhone from the list of devices in iTunes.
Hold down Alt / Option (Shift in windows) and press the Restore iPhone button.
STEP 5o
Choose the firmware you downloaded earlier from the window that appeared and press the open button.
When asked for confirmation of the restore, click the restore button.
STEP 6o
ITunes will continue the process and after 10-15 minutes your iPhone will be back in iOS 6.
