keyboard keys diagonal from the "8" "i" "k""," do not work
about a month ago, these keys "8" "i" "k""," started to every now and then not work. Now none of those keys work. HP chromebook was new as of OCT 2015.
It sounds like the keys were shorted out or the ribbon could have came loose.
I suggest re-seating or possibly replacing the keyboard.
Here is the instructions to do so. HP Chromebook 14-Q010DX Keyboard and Touchpad Replacement
9 times out of 10 it is the ribbon that has come loose. 9 screws on the bottom 4 of which are behind the rear gummies.. (foot pegs) I don't know why, but HP decided to put the tape on the ribbon cable to tight and it pulls out very easily.
Same, I know your pain