I have bought a Gear S Korean Version SM-R750 soft R750XXU2BOG2 and successfully paired with a Note 3. I would like to change firmware to a Spanish one. I've seen the newest Spanish rom is same rom R750XXU2BOG2 Spanish version. Can I flash it via Odin? Is there any problem if same rom but different country? Is better installing a newer European rom (new version European exists but not Spanish one)?

Thank you very much.