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‎02-02-2025 12:31 AM

HP Recommended
Operating System: Microsoft Windows 11

Because i have been recieving a text on my screen "The CMOS checksum is invalid". Also if i try to power reset it just stay at the black screen 

Category:
1 REPLY 1

‎02-02-2025 11:41 AM

HP Recommended

No.

 

It does not have a CMOS battery.

 

"The CMOS checksum is invalid" means that the BIOS is corrupt.

 

Download the BIOS update  on another Windows laptop or desktop PC.  Use it to create a BIOS flash drive.

Boot to the flash drive on the laptop and the update should correct the issue.

This may or may not not work, since you have installed an unsupported operating system

https://support.hp.com/us-en/drivers/hp-pavilion-15-cs3000-laptop-pc-series/model/31127998

 


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