I haven't upgraded the firmware on my iphone since I bought it back in August of 2007.
The current firmware on my iphone is 1.0.2. More specifically when I go to Settings>General>About>Version, it shows this: Version 1.0.2 (1C28)
I would like to upgrade the firmware, so, is this possible? Does anyone know what the best method to do this is? I've read about ZiPhone... is this the way to go?