Downgrade iPhone Firmware 3.0 To 2.x.x

Submitted by admin on Sat, 03/21/2009 - 15:02.

• Apple
• Downgrade iPhone 3.0 To 2.2
• Downgrade iPhone Firmware
• Downgrade iPod Firmware
• Downgrading From 3.0 To 2.2.1
• Downgrading iPhone
• Downgrading iPhone Baseband
• Download QuickPWN Latest Version
• Hack Firmware
• How To Downgrade
• iPhone
• iPod
• QUICKPWN

Despite all the warnings if you upgraded your iPhone to the latest iPhone OS 3.0 Beta without a developer account you must be locked-out from normal phone functionality, downgrading your iPhone to an earlier version is pretty straight-forward but downgrading your baseband (which is responsible for the unlock being not functional anymore) is not possible with newer versions, You can downgrade iPhone OS 3.0 To earlier 2.2.1 version using the following guide.

1. Power-off your iPhone and enter DFU mode using instructions below.
• Push and hold Home and Power buttons on your iPhone simultaneously for 10 seconds.
• Release the Power button but keep holding Home until the computers beeps recognizing the USB device.
• You should be in DFU mode now.
2. Launch iTunes and restore your iPhone to an earlier firmware version like v 2.2.1, 2.2, or 2.x.x.
3. Your restore should result in errors numbered - 1011, 1013 or 1015 because iTunes is unable to restore-back from the newer 3.0 baseband, if you receive any error other then the ones above try again entering into DFU mode correctly.
4. Download QuickPWN 2.2.5 for Windows or MAC.
5. Launch QuickPWN and follow onscreen instructions using the 2.x.x firmware file.
6. You should now have an iPhone with older firmware but newer 3.0 baseband (which is sadly still unlockable), if you have an iPhone 2G you should have the older baseband as the new 3.0 beta does not update the baseband on 2g iPhone.