How to downgrade 6.1.3 to 5.0 untethered (iPod 4g, and iPhone 3g, 4g)

Redsn0w windows download: https://sites.google.com/a/iphone-dev.com/files/home/redsn0w_win_0.9.15b3.zip?attredirects=0&d=1 Redsn0w mac download: https://sites.google.com/a/iphone-dev.com/files Need Ios 5.0 restore ipsw.: http://iosdl.com/ Very important! You would need the SHSH file to downgrade. view "How to get SSHSH file": http://youtu.be/4iaZhYFy514 How to downgrade 6.1.3 to 5.0, 5.0.1, 5.1. and 5.1.1: http://youtu.be/UwIR9BUhJsc