here is how to down grade the unit if you F up your upgrade or have missing info from your upgrade insert your disc in to your unit then go to settings tab find the menu that lets you change the language change the language to either french or spanish let let the dvd upgrade the unit after its done do it all over this time change the language back to english hit the eject button and insert your old 70's disc let it upgrade / downgrade to english or do what I did give Pioneer 120 bucks and upgrade to the 90's disk
Most of the torrents are crap any way and the dude In Flordia ( same guy o