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‎11-26-2022 09:02 AM

HP Recommended
Product: HP Notebook - 15-da0194nl

I''m having this problem since a while. when i turn off the pc and close it then it won't turn on again without the power cable (just for the turn on, then it works without it). When this happen the pc tries to turn on a couple of time failing and after some tries it shows the error CMOS checksum invalid error 502, it reset all BIOS parameters to default  and after that the pc finally turn on. This happen every time i  turn it off and close it. After that the date and time seems not to be update, so i tought that i shouls replace the CMOS battery but i found out that my pc does not require it. I also tried to update BIOS but it did not change anything.

The main problem with it is the reset of BIOS parameters, for example it put virtualization off, so i can't use any VM, and stuff like that. Also not being able to turn it on without cable is annoyng.

Thanks for help

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