[Q] update from Poland 4.4.2. KITKAT to German version topic

Hi,

I am now on the 4.4.2 from Poland, rooted, no CWM, everything runs fine. I was wondering whether I could switch to the new German release. OTA says "System modified", Kies says "This is the newest firmware".

So, is there a way to switch or to set the system status back to official to get OTA update?

Thnx