iPod touch Ipod Touch 2nd Gen MC model- IOS4

[Blazing angel]

I have a MC model which i'd love to jailbreak, but i am not sure if i should leave it at 4.0 or if i should update to 4.1 or 4.2.1 and then jailbreak it?
Is it even possible to update it to 4.1 anymore. Also, can i safe the SHSH of ios 4 still?

 

[tablo13]

You can update it to 4.1 if you use the Shift+Restore method rather than click update in iTunes.

 

[Blazing angel]

Ok, it's on 4.1, but now even when in dfu, greenpoison nor limerain recognize it. They both say "retry" (its in dfu, but they wont pick it up)
I just j/b'd my #g too....
ima downgrade it now...