Guide to Jailbreak 3.0 on windows
PLEASE NOTE THIS DOES NOT ACTIVATE.. YOU WILL NEED TO DO THAT MANUALLY.
NOTE - you will need to find your own custom firmware i cannot provide you a link
This was done on my 3G i cannot comment gaurentee this will work on any other phone.
What PC users gotta do after downloading this firmware is to get ahold of quickpwn RC3
get it here: http://xs1.iphwn.org/releases/QuickPwnRC3.zip
then you gotta get iphone OS 2.0.2
The reasoning behind this is that you want ot use quickpwn to put it in a special DFU mode to allow itunes to install the custom IPSW. most versions of quickpwn check the firmware installed onyour phone to make sure you're not making a critical mistake, but RC3 just does its thing "blindly." this is what we want beacuse we want quickpwn to put the iphone into the "special DFU mode" that itunes will like
Manually putting the iphone in DFU mode doesn't seem to work.
so once you got everything, quickpwn RC3 and the 2.0.2 firmware, connect your iphone, and select the 3G model, then browse to where you downloaded 2.0.2 then click the next icon.
follow the instructions to put the iphone in DFU mode, once quickpwn starts "uploading the bootloader" (its not the exact phrase but something close) quickly close quickpwn.
hopefully you should see something in windows saying that drivers were installed for Device Firmware recovery. your iphone screen should be blank.
now open itunes and SHIFT-CLICK restore and select your custom IPSW. itunes should now start prepping your iphone for restore.
you'll know you did everything right if your iphone screen turns to a solid white screen. if you see the USB cable and itunes icon on the screen, you'll have to start over from the Quickpwn RC3 part.
hope I didn't confuse anyone too much, but it defintetly worked for me and I was a huge skeptic with hours of failure until I used RC3 to put the iphone in the correct DFU mode.
Once I did that everything worked great!!