blah... blah...

./ipsw iPhone4,1_6.1.3_10B329_Restore.ipsw iPhone4,1_6.1.3_10B329_Downgrade.ipsw -memory -bbupdate -ota iPhone4,1_9A406_10B329.plist

blah... blah...

idevicerestore -d -w iPhone4,1_6.1.3_10B329_Downgrade.ipsw

blah... blah...

-xerub
