region and os

Hi. I have a Galaxy Note 4 N910C that is bought from U.A.E (United Arab Emirates) it was given to me but was rooted. So I cannot update it via OTA. So decided to just flash a rom manually via odin. I'm quite new to flashing but I know how to do it. So I went to Sammobile for firmwares. Before...

Hi, could someone tell me how to find out what os and region I have on my GT-i9300 as I need to flash a stock rom, thank you