Touchscreen not responding anymore

This morning at first my phone was working alright but after I wanted to snooze the alarm for the second time the touchscreen stopped working. Since then I can’t use the phone anymore. I tried taking out the battery, using a different battery, taking out and replacing Sim and SD cards. I also tried recovery mode but it just comes up with a screen stating no command. Does anybdy have an idea what else I could try or did somebody have a similar problem and managed to solve it?

Have you tried this:

I tried the touch screen tests but none of them work. I can’t even get a single dot to be drawn on my screen.

I suggest to contact support. They will tell you the further steps.