Change Original Country Code (ISO)

[Serpher]

I have a S25+ with EUX/GR codes. How can I change it to Poland (PL)?? I flashed Polish firmware PTR but it did nothing... I'm loosing my mind.

[Piper123]

I'm afraid we don't recommend flashing alternative software on to Samsung devices within this forum.

It can create all sorts of problems for users who may not have enough knowledge to do it properly and can trip Knox and void warranty.

[Moiramon]

You can't change it. You can flash the firmware or change the CSC code but it won't change the original country code.

[Serpher]

My problem is that Caller ID and Spam protection in the Phone app is gone. Apparently it's due to country code, that's why it is unavailable. I know that there's separate Hiya app or Google Phone with that ability but Samsung Phone always worked great and in this day and age of spam calls, this function is priceless.