Originally Posted by kastr0GR

Works 100%!

What a mission, Bootcamping in and out on Windows and Mac.

The low-down: I'm a non-dev using a factory unlocked iPhone 3G.

Q-
Why do I have to do Step 5? Can't I just leave it in 2.2?

ohh yea..... it worked!!!
non dev here activated on 3.0

First off thanks for the help it worked perfectly and its much appreciated!!!

Originally Posted by xtronic

iUtilites.. google it (With iUtilities, I managed to change system version to 2.2 after Jailbreak OS 3.0beta2
zSHARE - iUtilities.rar
Follow these Steps :

1-Update to 3.0 iphone 3G or even restore
2-Use Quickpwn 3.0 Beta and select Jailbreak ONLY. when finished the phone will be jailbroken and screen is in pink color waiting for activation ..close iTunes.
3-Open iUtilites if some error show or ask for any thing iqnore it and select (String Editor) a new windo will open then look for the CHANGE SYSTEM VERSION..CHANGE it to 2.2 and Type in the space Below it 5G77 buid 5G77 click ok... restart iPhone and your system version is now changed in iPhone to 2.2
4-Connect to iTunes and activate.iTunes will activate any version below 3.0 for non DEV as long as you have inserted the correct sim card.
5-back to iUtilities and redo process by typing the correct version for 3.0 build 7A25g then restart.
Do a fresh update or restore >>
This process fake iTunes and activated iPhone as if it was 2.2 and You will have a full fuction 3.0 Beta without beeing an Apple Dev....

Now, do I have to do a Fresh update/restore ? or can I just continue as is and transfer from my back up and stuff.....

also can u show or link me to somewhere where I can get cydia to work, I mean Icy is really lightweight but I have no sources and I dono where to get them from yet.....

thanks again

Guys RELLY DON`T UPDATE TO 3.0 VERSION IF YOU DONT KNOW WHAT ARE YOU DOING!!!

I have updated to 3.0 and I strugeling to 2 days to go back to versin 2.2.1 to work. Now I finally get my IPhone work and I say it one more time!!! DO NOT UPDATE TO 3.0 VERSION!!! It may be your worst nightmare! But if you do it follow ecsactly they steps:

How to Downgrade iPhone Firmware 3.0 to 2.2.1
1. Connect your iPhone to your Mac or PC and select your iPhone from the list of devices in iTunes

2. If iTunes does not detect your iPhone then you will need to put it in DFU (Device Firmware Upgrade) mode.

3. Browse the Summary Tab,

Mac Users,

Hold down Option and press the “Restore” button

Windows Users,

Hold down Shift and press the Restore button

4. Now browse the folder where you have the iPhone firmware.Select the firmware & hit the restore button and cross your fingers for 5 minutes.

5. Ignore error message like 1011, 1013, 1015 (Actually the firmware 2.2.1 is already successfully installed)

6. Use QuickPWN 2.2.5 to Jailbreak iPhone Firmware 2.2.1

Steps to put iPhone in DFU mode

1. Connect your iPhone to your computer.

2. Turn iPhone off.

3. Hold power and home together for 10 seconds (exactly).

4. Release power but keep holding home until the computers beeps (observed on a PC) as a USB device is recognized.

5. A few seconds later iTunes should detect your iPhone.

Please Note :- If you encountered with error message like 1601, 1602, 1600 or anything else then try putting the

iPhone into DFU mode and try again.

If it fales try in different computers. Works to my after 2 days straceling. GOOD LUCK!!! And sorry my poor english.