[Q] Resetting state and choosing a firmware

Pkmns

Member
Feb 22, 2013
48
7
0
Hello everybody,
My phone has had various problems lately and I thought that reverting to factory settings and then installing an official OTA update was a good idea.
I did a factory reset from the settings and unrooted the phone with Super SU, but it keeps telling me that the phone has been modified. I figured out I should flash a stock firmware through ODIN, but which one should I pick? I currently have I8190XXAMA4, which seems to be an Iranian firmware (WTF? I bought this phone in Italy!). The latest Italian firmware ends with ANI4, can I flash that one? Will it allow me to update OTA after that?