BV7 How to clean dust on contrast screen?

Do you know how to dissasemble the front window.

Some dust is hinter the window?

thanks

Sometimes it's more trouble than what it's worth unless you are doing this in a static free environment.

This is really a job for a qualified service engineer that knows what to touch and what not to touch.

BTW you can gently pull the top edge of the 7 screen towards you and then you could use a blower to push the dust away.