Downgrade iPhone 3GS 3.1

[AaronE]

I have a friend with a 3GS and 3.1 software. Is it possible to downgrade to 3.01, jailbreak, and then upgrade and jailbreak 3.1?

I have no experience with the 3GS so I don't want to mess up their phone or lock it up.

 

[Knowlege Bomb]

I have a friend with a 3GS and 3.1 software. Is it possible to downgrade to 3.01, jailbreak, and then upgrade and jailbreak 3.1?

I have no experience with the 3GS so I don't want to mess up their phone or lock it up.

No.

Somebody can fill in on the specific reasons if they please. It's all over these forums though.

 

[AaronE]

Alright i just wanted to know since i didnt want to mess up their phone.

 

[jayjayn]

SORRY TO POST IT HERE ARONE , but im unsure how to private message i was interested in how u got ur m61pme-s2p hackintosh work ktext etc.. any help would be appreciated.. my email is jay@jayjayn.com thanks a lot.