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iPhone 2G: How to downgrade 3.1 to 3.0.1

If you’ve accidentally upgraded to 3.1 on your iPhone 2G, all is not lost. I have been receiving a lot of requests for a solution.

Apple’s firmware releases have not had any detrimental baseband effects on iPhone 2G’s. So it really is just a matter of time before a jailbreak comes around or a downgrade is possible.

If you are part of the few who have upgraded and haven’t been able to use their iPhone and you have a 2G, you are in luck.

Downgrade my iPhone 2G from Firmware 3.1 to 3.0.1
1. Download iTunes 8.2 (MAC/WIN)

2. Shift Click + Restore to Firmware 3.0.1

3. Download/Use Redsn0w (MAC/WIN)

Note: Some people have had success restoring to an already Jailbroken/Unlocked custom firmware of 3.0.1 and then running Redsn0w.

Upgrading to Apple iPhone Firmware 3.1

Need You Ask?

Jailbreaking and unlocking Apple iPhone Firmware 3.1 is not available at this time. As with all new firmware updates, make sure to wait until there is a solution before inadvertently putting your unlocked and jailbroken iPhone into paper weight mode.