- If your iOS device is currently jailbroken, you’ll need to backup everything and do a fresh restore of iOS 5.1.1 and complete the setup and restore your backup.
- If you got over excited and already updated to iOS 6, you would need to downgrade to iOS 5.1.1. Plug your iOS device into your computer with iTunes and boot into Recovery Mode by holding both home and lock buttons until the screen goes entirely black. Release the lock button while holding the home button until iTunes pops up with a message. Perform a restore to iOS 5.1.1 from there.
- Download iOS 6 Beta 1. Google it or download it here: http://iphonehackiosdev.blogspot.com.au/2012/06/ios-6-beta-1-firmware-direct-download.html
- Following instructions tested on iTunes 10.6.1 for Windows and upgraded from iOS 5.1.1 on iPod Touch 4G.
- Open up iTunes and connect your iOS device using your USB cable
- Once you see your iOS device on the left panel, click it.
- Hold down on the Alt+Option (Alt+Ctrl or Shift for Windows users) buttons and click the Check for Update button on the main panel
- Select the .ipsw for iOS 6 Beta 1 you just downloaded from the mirror.
- Click OK and let the iTunes do all the work.