hp pavilion cmos checksum is invalid cmos reset 502

[sksdesign]

Hey,

I got this error message on startup and im lost into it.

Ive already checked the accepted solution here: https://h30434.www3.hp.com/t5/Notebook-Software-and-How-To-Questions/CMOS-reset-502/td-p/2438401

Reset CMOS, BIOS, Update BIOS and already changed battery.

Even with a"new" battery I get this cmos issue.

The Main-Battery serves also as a "cmos battery" but I dont know how to fix this now.

[Sneha_01]

Hi @sksdesign ,

We apologize for the inconvenience, but it seems that the issue needs a hardware repair.

Unfortunately, there are no further actions we can take through this channel. I recommend reaching out to our phone support for further assistance.

They can help you with the unit repair or part replacement.

I request you talk to HP Phone Support and they will help you to sort it out as it requires advance support or repair.

1. Click on this link -  https://support.hp.com/us-en

2. Select the country.

3. Enter the serial number of your device.

4. Select the country from the drop-down.

5. Click on "Show Options".

6. Fill out the web form. A case number and phone number will now populate for you.

Please feel free to contact us here anytime you need any further assistance.

Have a great day!

Rachel571 

HP Support