Upgrading a 2G from 3.0 to latest.

[dobdob]

Hi guys.

I'd like to upgrade a previously unlocked iphone 2G to the latest firmware.
(3.0 -> 3.1.3)
Before I do it, I just want to check that I understand the process correctly:

* Upgrade via itunes
* Run redsnow, following the directions.

Is it this simple?

An aside:
Yesterday a friend came to me with an iphone 2G that she had upgraded via itunes. I used redsnow, and the phone is now unlocked and fully functional.
Here's the interesting thing though: it didn't work the first time.
First, I used the version of redsnow from the official site: redsn0w.com. Using that version, I didn't get past an error complaining about mismatching .ipsw files. I updated to the latest beta, from the dev-teams google site. That didn't work either. Same error. I finally a version that was later then the version from redsn0w.com, and not marked as a beta.
That version worked.

So anyway, my question is simply:
Can I just upgrade via itunes and run redsnow, and expect the process to work?
Are there any gotcha's that I should be aware of before I begin?

Thanks.

 

[Applejuiced]

Yes, update to official 3.1.3 and then use redsnow to JB and unlock.
You might have to point redsnow to the 3.1.2 2G ipsw incase it doesnt recognize the 3.1.3 ipsw.
Everything else should be easy.
Good luck.