iPhone OS 3.0.1 Final Firmware (Official Release)Note: This Update fixes a nasty SMS vulnerability.
[ Instructions ]
1. Open iTunes (make sure it's v8.2) and connect your iPhone.
2. Select iPhone under 'Devices' on the left.
3. If you're using Windows: Hold down the 'shift' key, and click on the restore button. If you're using a Mac: Hold down the 'option' key, and click on the restore button.
4. iTunes will pop up with a window which will let you browse for the .ipsw firmware file you want to install.
5. Wait while the OS 3.0.1 firmware is being installed.
[ Firmware Download ]
iPhone OS 3.0.1
Download Code:
http://appldnld.apple.com.edgesuite.net/content.info.apple.com/iPhone/061-6974.20090731.Cf4Tg/iPhone1,1_3.0.1_7A400_Restore.ipsw
iPhone 3G OS 3.0.1
Download Code:
http://appldnld.apple.com.edgesuite.net/content.info.apple.com/iPhone/061-6972.20090731.Zx3Rr/iPhone1,2_3.0.1_7A400_Restore.ipsw
iPhone 3G[S] OS 3.0.1
Download Code:
http://appldnld.apple.com.edgesuite.net/content.info.apple.com/iPhone/061-6976.20090731.Vgbt5/iPhone2,1_3.0.1_7A400_Restore.ipsw