fire

I got this phone since a week now, but don't remember if all of the keys are working good at the beginning, but the ENTER and Del keys are used more often than others and I realize this yesterday. In my set up layouts, none of them has been selected... I can try to select one of them to see what happen!?!?! It was Default so I tied English US but no difference.. In red are the keys not working...

Really got problem. Some keys in right of the keyboard not working. Here all the keys; -_ , =+, Del and worst of it ENTER!!!

For me real problem. Got my phone last week and the ENTER does nothing! No apps work with the physical ENTER key. Please help...