No POST after HP firmware update thru Windows update

[Olsenbanden26]

Did the Windows update and saw that there was a HP System Firmware update and added that to my Windows updates.

I asked it to restart and walked away from the laptop. When I came back it had a "light blue" screen and nothing was happening.  I let it sit for about 3o min no change.  It looked to me like it was a issue with the BIOS as there was no POST.

I checked the net and found that if I were to hold the power button for 2-3 sec while holding Windows and V buttons (B button did not work) it would allow me to have the BIOS recovered. 10 sec. after you release the power button the power light comes on (Black Screen) and another 10 sec. later screen goes "light blue"  and then you get a screen that said: CMOS Check sum is invalid. CMOS will be reset to default. CMOS Error 502 . Then you hit Enter to restart the laptop and it should bring up the BIOS "repair screen". It did not.    I then found that I should download the latest firmware and to a USB flash drive and follow the same procedure as above. I did that but it gave same result.   I also saw that someone thought that the internal battery could be the reason if it was "dead" but the laptop stays on when the the power is removed so that should not be the reason.  The only time I see the CMOS Error 502 is if I use the above procedure. Except for when I removed the SSD hard drive. When the hard drive was removed I could get into the BIOS and I could connect a bootable usb flash drive and it would boot up on that. When the SSD hard drive is installed it is back to the scenario described above.  

I looked on the available pictures of the mainboard but I don't see any CMOS battery that I could remove to reset the CMOS.

Has any one else seen this???????    If you have not selected the HP Firmware from the Windows update yet, don't do it.