If you have already ended up upgrading your iPhone 3G firmware 3.0 and feeling to downgrade back to Firmware 2.2.1 then follow below guide, however you must know you can only downgrade your iPhone Firmware 3.0 but not baseband 04.20.01.
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.
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after i did that my iphone stay in recovery mode because of the error 1013 and i cant seem to download the right quick pwn cause icant open it. it keeps saying cant use the application or whatever. if i use quick pwn will it jailbreak my phone? i dont want that to happen. are there other solutions so i can use my iphone already?
Did you try this in DFU mode or just recovery mode?
go suck some cock fagggs thiis shytt is a wast of tyme