Somethings's really wrong with my FP2! (display and touchscreen)

My Fairphone 2 is behaving really strange, it happens occasionally: the display shuts itself off, shows distorted image or the touchscreen ceases to work at all. A few times I’ve had to restart it by taking out the battery. Is it a hardware issue? What can I do?

A post was merged into an existing topic: Fairphone 2: Crazy touch inputs (touchscreen issue) - workaround (for some): increase touch & hold delay