[UN32J5205] How to change Menu Language

[rana]

I did some research and found out how I can change the SMART HUB region
but this isn not what I wanted, I was looking for a way to change the TVs Menu Language,
since this TV was bought in the USA the actual possible selections in the MENU -> System -> Menu Language
are only English, Spanish and France. I would prefer to set it to German.

I also found out that POWER OFF -> MUTE .. 1 .. 8 .. 2 -> Power On, will bring me to the Service Menu
but the actual Location/region Setting is "grayed out", so I can't change anything.

Anyone who has an idea how this setting can be switched ?

Thank you