upgrading iphone from 1.0.2 to 1.1.3

[ben10]

have anyone successfully upgrading their unlocked iphone 1.0.2 to 1.1.3.
if so could you please let us know how you go about doing it.

i was browsing thru modmyfone and hackthatfone but they got too much info hence it is very confusing.

[Dr Mobile]

u have to upgrade to 1.1.2 then use the 1.1.3 upgrader to patch it

[ben10]

getting 1.1.2 to 1.1.3 is easy, getting 1.0.2 to 1.1.2 is the hard part.
but it's all good now.