i am trying to jailbreak or downgrade a friends iphone but i cant do it with redsn0w because i cant find the right firmware so basically anybody can tell how to

jailbreak

or downgrade

or give the right site for firmware 4.1 for iphone 3g ( dont tell me to use felixded.de i tryed)

it is a iphone 3g 32gig 4.1 firmware model



thanks for any help