Complete reset of Snom M400

Hello,

I have a question about the Snom M400 DECT base. After a reset using the reset button, the logs are still displayed in the web interface. 

I would like to pass on the base to an other person and would therefore like everything to be completely reset.

How can I do/achieve this?

In addition, the Configuration Server Address was still displayed after a reset. After the 5th or 6th reset, this is now also reset.

Why is the address only reset after so many reset attempts ?

Thank you for any help !

IT user