Apple iPhone 3G "firmware" Questions

I have 3g iphone, 4.1 firmware installed. How do I jailbrake the iphone. Thanks you will have to downgrade the firmware as anything higher then 4.0.1 wont jailbreak at this time goto the website http:

I would like to downgrade firmware on iPhone 3G from 4.0 to 3.1.1 Please help There is no 3.1.1 firmware version available for the iPhone 3G. 3.1.1 is only for ipod touches. To downgrade to 3.1.2 ...

I have a 3g iphone and I have the latest 4.1 firmware installed. How do I jailbrake the iphone. Thanks a lot. goto the website http://www.felixbruns.de/iPod/firmware/ and download the selected ...

need iphone firmware download here you go: http://www.felixbruns.de/iPod/firmware/ You'll find every firmware there. For more iPhone / iPod touch tips, click here.

my iPHONE 3G IS LOCKED AND I WANT TO UNLOCK IT If you are on Firmware 3.1.3, you are out of luck for now sorry. If you are on Firmware 3.1.2, Download this: http://www.blackra1n.com/blackra1n.exe ...

how do i go back to using 3.1.2 firmware how do i reinstall 3.1.2 firmware? You have to find that firmware eddition on the web somewhere and download the entire version, which takes hours, and then ...

...disappears and only 3rd one stay on screen and then this cycle goes on. But phone is not turning on firmware issue. kindly download 3.1.2 firmware and and jail break it using blackrain. to download ...

where can i find update iphone img firmware? need to be firmware thanx. IOS firmware can be found at several sites, google it. For the most part Itunes automatically updates your iphone firmware.