Cmos 502 checksum error

[Marinaras]

Hello guys,

My name is marinos and my laptop got the 502 checksum error. I usually get it when I let my laptop charge for 2 or more hours shut down. After this screen I can press enter and it boots normally but the issue is annoying. I have taken it to warranty and they said they updated the bios and checked the battery levels and that if I get it again there must be a corrupted system file. What should I do?

[sandytechy20]

@Marinaras 

Welcome to the HP support community.

I understand that you are getting a 502 checksum error on the notebook, I am glad to assist you.

Follow the steps mentioned in this HP document to fix the issue:- Click here

Keep me posted.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.

[Marinaras]

I've ready seen this article and tried it too and when I press enter the laptop starts normally but the problem is that it is annoying and that it messes my avs network firewall.

[Rainbow23]

Hi @Marinaras,

Welcome to the HP Support Community. 

This issue might require one on one interaction over the phone to fix it.

I've sent you a private message with the steps to talk to HP Support. In order to access your private messages, click the private message icon on the upper right corner of your HP Support Community profile, next to your profile Name or simply click on this link

Take care and have a great day ahead!