Laptop not holding battery and getting this error cmos 502 error

[Carlyel]

I have a Hp gaming pavilion laptop and all of a sudden it stopped working without it being plugged in. Its says 0% battery and this error code when turning on The CMOS checksum is invalid. The CHOS will be reset to the default configuration and will be rebooted. Please check your BIOS Setup options to see if they change • CMOS Reset (502) ENTER - Reboot the system For more information, please visit: http://www.hp.com/go/techcenter/startup

[Pallipurath]

Hi @Carlyel,

Welcome to the HP Support Community.

Thank you for posting your query.

If your HP laptop is experiencing a CMOS 502 error and also not holding the battery, here are the steps you can take to resolve these issues.

Reset the CMOS:

• Plug in the AC adapter.
• Turn off the computer and wait for at least five seconds.
• Press and hold the Windows key + V key.
• While continuing to hold these keys, press and hold the power button for at least two seconds and no more than three seconds.
• Release the power button but keep holding the Windows + V keys until you see a screen showing the CMOS Reset process or hear beeping sounds.

Update the BIOS:

• Ensure that your BIOS is up-to-date, as outdated software might affect battery performance.
•  Download any available updates from the HP Software and Driver Downloads page.

I hope this helps,

Take care and have an amazing day!

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Regards

Pallipurath.