Default Sm-n9005 confused with flashing kitkat

Hello guys. It's ma first time writing a post. Sorry if it's not the right place for it. So here's my story:

I am from Greece. I bought a note 3 sm-n9005 LTE. It came with 4.3 jelly. After I rooted with the wrong way messing up with the knox warranty. 01. I have no problem with that.

A few days ago cause I couldn't wait for the official kitkat, I flashed woth odin XXUEBN4 but from France XEF. everything seems to work fine.
Should I have to flash anything else more?
Was bad flashing another country's rom??

Later I was curious what will happen if I flash the GERMAN ROM. I had problems cause a message came PROBLEM WITH THE FIRMWARE UPGRADE. then I flashed again the XEF ( FRANCE) one.

How to root? I used cf auto root but when I tried to turn it on there was a problem with the recovery. So I flashed again the France rom again. Now I am OK.

Where is my mistake?

Waiting for your worthing answers
Thanks
Steve!

Sent from my SM-N9005 using xda app-developers app