Bought the phone one year ago. I'm very satisfied but since two days the touch screen is not working any longer in the whole area of the navigation bar. It seems to be a hardware problem, since it sometimes works again if I knock the display with my fingers. May I get a new touch screen within warranty?

Hi there! Yes, it definitely looks like an hardware fault. To get your phone repaired under warranty you'll have to contact your seller, as he's the only one who manages warranty terms.