sorry for the insipid question. i know it must come up here daily.

but, i have an old 1.3 2G which has been unlocked and jailbroken with ziphone back when 1.3 was the current os.

now this phone is so old it is hard to find info specific to it.

is it possible to upgrade to the current iphone os? can someone please point me in the right direction?

Code:

Follow this guide

PS. Stay away from ziphone.

thank you!