moved to a new location with existing yeelight 480

I got a new apartment where a Yeelight 480 Ceiling Light is installed.
When I try to reset it and add it to whatever you like to use Xiaomi App or Yeelight App it wont work. Even when switching into the yeelight WLAN.

For now I tried such a lot of things, that i got more or less by accident a message telling me that the hardware is only in China available and I have to switch my Region, but I cant switch it but Singapore worked so far.

Do you guys got any Ideas for me working on this. I really like those Lights, but without any option of adjusting the brightness its just way too much for me.

thanks in advance

push can anyone help me, please?