-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Notebooks
- Notebook Operating System and Recovery
- CMOS Checksum 502 Invalid Error

Create an account on the HP Community to personalize your profile and ask a question
01-03-2025 01:13 PM
Laptop: HP Victus 15 RTX 3050
Windows 23H2
Every time I turn on my laptop, the power button blinks and Cmos blue screen Error pops us stating it has detected change in Bios settings and will be reset to default since 1 month. The date and time settings stay out of sync. My laptop doesn't contain a separate CMOS battery. Hence, am unable to figure out what to troubleshoot.
Recently the issue has escalated with the laptop not even turning on. Only the power button blinks and stays like that. After trying around 10-15 times, it boots for once.
I have tried reinstalling the BIOS whenever the laptop turns up. Even did all the updates. Tried turning on by removing the battery.
01-05-2025 01:54 PM
Please use the following Guides to fix
https://support.hp.com/si-en/document/ish_4209641-3226345-16
Regards
***
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.