how do i convert from 2.0.1 to 1.1.4 firmware?

[yiannos9]

i made the foolish mistake to jailbreak and unlock my 2G iphone to 2.0.1 firmware.
i used winpwn to do that.
im veru disatisfied with this firmware.
now i desperately want to go back to 1.1.4.
How will i do that now?????

 

[Insulin Junkie]

Download the 1.1.4 firmware from here
http://modmyifone.com/wiki/index.php/IPhone_Firmware_Download_Links

Open iTunes, press shift & the update button, this allows you to manually search for firmwares. Find your downloaded 1.1.4 firmware and install it.

 

[Flhusky]

Google is a good place to start or use winpwn to create a JB 1.1.4 ipsw to load while in recovery mode.
Heck I'd bet a forum search might yield the answer.

 

[daneoni]

Its quite a complicated procedure and you'll need to downgrade iTunes and use a combination of Pwnage tool 1.1 and iLiberty+

Anyway

these are the tutorials

Tutorial 1

Tutorial 2