for your question

"how did you know that it is indian ?
and what is your code below the imei?"

because i bought it from india.( i was talking about my mobile)

firstly i don't promise that if you follow or do what i will say is 100% work for you.

i am only trying to say that when i bought my mobile i wanted to flash it. so tried a globle firmware but that gave me a red line on my sim card. so i think that i should try usa firmware(i know it is childish to flash an indian mobile with a usa firmware ) but i wanted my mobile look like as usa(because indian firmware is slightly different from others i.e it does not have folder in menu called "More" etc.)



Thus in both firmware (including global) i got same problem like you( a red line on sim card)


so it was my story.



Now what i think that if your mobile is not recognizing the firmware you are flashing with (even italy's firmware) it MAY work with other country's firmware(again this is not promise for you) but as a last resort before taking any action i think it worth a try.

kindly note I MAY BE WRONG
good luck!