Right. A hard reset is a prescribed fix for troublesome Chromebook keyboards. Here’s a link https://support.google.com/chromebook/an... I wasn’t aware of this until I sent my relatively new Asus Chromebook to the Asus service center for repair. My Chromebook came back, fixed by this user level procedure.

Character keys on the right side of the keyboard do not work. For instance; On the number row keys 9, 0, -, = do not work. On the QWERTY row keys o, p, [ do not work. On the ASDF row keys l, ;, ' do not work On the ZXCV row keys the period key, and backslash key do not work Character keys on the left side of the keyboard work OK Modifier keys like esc, enter, shift, ctrl, alt work fine. Same for page left, right, up, down keys. Top row function keys are all OK This Chromebook has been Powerwashed as per Google support. Keys noted above are still dead. Next step will be to open the case and look inside.