how to jailbreak 4.2.1 iphone 3G ?

[Vansterdam]

i been trying to figure this out for the last 3 hours and have no luck.

i tried greenpoison,blackra1n with no luck.

just updated to 4.2.1 and the phones restored

now all i need to do is figure out what program i can use to jailbreak

[willystyle]

I used GreenPoison and it worked for me. Not sure what you did wrong.

[katt88]

try this http://www.iclarified.com/entry/inde...id=12949&laid=

[Vansterdam]

when i tried using greenposion it was asking me to locate the ISPW and i had no idea what or where it was

[skholla]

Originally Posted by katt88

try this http://www.iclarified.com/entry/inde...id=12949&laid=

The current greenpoison is only for 3GS and newer models...

Use the above method with redsnow. I just updated a 3G to 4.2.1 and used redsnow, worked great!
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