HP Pavilion 15-CW1002UA
S/N 5CD0251CBC
P/N 7KE54EA

Hello guys!
I have a strange issue with my laptop keyboard and I'm lost trying to detect what's wrong - the KB9028Q-C or the keyboard itself.
It powers on OK and has no other issues except the following:
  • CAPS LOCK does not work at all
  • Fn button toggles Flight Mode
  • When I press 't' or '5', it produces 't5', and when I press 'y' or '6', it produces 'y6'
  • (with SHIFT pressed: 't%' and 'y^' respectively)
I initially thought it was a keyboard malfunction (internal short, etc.),
but when I press and hold...