I bought a Galaxy S5 (G900F- International Model) two years ago. It was locked by carrier. I can't use any network sim from my country. So I spend some money to unlock the carrier (Country Unlock - This is what we name it). It was&is on Android Kitkat. Now I planned to upgrade it to latest marshmallow from official update using Odin and it's files. I just want to know Will it lock the carrier again?