Hi

For various reasons being the most prominent the fact that in my country (Portugal) many services are still unavailable .. I was thinking of changing my phones firmware to UK's firmware. I just don't know if it is possible without messing knox or any other kind of problems.

Anyone here has enough experience and/or knowledge to know if this is possible? If so should it clean flash it? Or just dirty flash it?

NOTE: Although I have some experience with custom roms and odin.. the experience is from the time of my S4.. so I'm kind of rusty.

Thanks in advance to anyone who can help..

Cheers