
Step 1. Download your iOS 6.0 IPSW corresponding to your device (you download it here)
Step 2. Download Redsn0w 0.9.15b3 (Mac or Windows)
Step 3. Right click on Redsn0w > go into properties > compatibility > run it compatible with Windows XP Service Pack 3.
Step 4. Now you can open up Redsn0w > click extras > select IPSW.
Step 5. Select your iOS 6.0 IPSW, corresponding to your...