downgrade question for 3g

[foreveraudio]

i have a 3g 4.0.2
want to downgrade it to 3.1.3

how do i go about that, thanks all

[iYeow]

Put iphone into DFU and shift + restore to 3.1.3 and use exit recovery from TU to error out 1015.

[brick121]

ok im a noob and i was wondering g how to put my ipod on dfu(if i even have to) and how to "exit recovery from TU to error out 1015."

ok im a noob and i was wondering g how to put my ipod on dfu(if i even have to) and how to "exit recovery from TU to error out 1015."

i have it in recovery mode but it wont downgrade... never mind i figured every thing out