@anna said in System Settings don't work:

While I can open the system settings (and close them), they remain frozen: I cannot tap on any icons nor move the flight mode or rotation lock sliders. I don't now which version I'm using, it's the latest provided for the Volla Phone 22.
Is there any trick?

Try powering off and on. This is not the same as rebooting.

P.S. I assume you did not change the channel and are in stable channel.