(Englisch)HP Omen 17-cb1176ng - The CMOS Checksum is invalid - CMOS Reset 502 - Reparatur Repair

[@bomcimtube]

I have the same issue, never getting HP again.

[@bomcimtube]

Another issue with this laptop: After it starts and showing HP icon, screen goes black. If I connect to external monitor, I can see the windows screen and laptop screen is dark. I know screen works due to initial logo appearing. Go figure