IPhone 3g firmware upgrade from 2.2 to 3.0

[np141592]

I have and iPhone 3g currently with v2.2 firmware. Is it possible to upgrade only to v3.0 not to v3.1?
Tnx

 

[jamesus]

You would need to find the 3.0 firmware and hit shift+restore in iTunes (windows machine).

 

[np141592]

Tnx for the reply. If I understood you correctly I need to download iPhone 3G Firmware version 3.0 (only for 3G models) and use iTunes 9.0.1 to restore the downloaded firmware. This should not update the baseband and I should be able to jailbreak/unlock it. I am trying to avoid v3.1 for iPhone 3G since I understand you cannot jailbreak/unlock at this time.

 

[np141592]

I have tried this last evening and it worked fine. It is now @v3.0 and jailbreak was applied.
Tnx for support.