thank You both for hints – I was able to restore Hibernation button and mode… looks like it is working – hibernated and restored my pulpit as it was before hibernation… so ok here 🙂
But major problem persists – for some reason I can’t normally (re)start device – if I choose Shutdown or Restart same happens – I have to try at least 5 times to long hold power button before it finally starts to boot. When I’m doing it diode above left-top corner flashes ones per whole process… after n-th try pushing power button it finally just starts like nothing happens! 🙁
What could be the reason? I’d like to try flashing BIOS but which is the correct one for me?