System board is missing or invalid ct number

[rodriblack]

I'm using hp hp 15 ac026tx notebook and i recently updated bios now
My laptop also does not recognize my power cord. (when its on )
However, when I turn it off and leave it plugged in, the battery is full when I turn it back on after a few hours.
But when the laptop is on and plugged in, it looks as if it is not plugged in and functions of of the battery.
AND my laptop is super slow all of the sudden. , i tried bios downgrade also but the win key + B thing is not actually working like its just in the black screen but i can hear the beeps

HOW can this be fixed? I'm not a techy, so please tell me things I can actually do 

However that doesn't fix that "System board is missing or invalid ct number ..." message at startup.

[KrazyToad · Accepted solution]

@rodriblack

If you are getting the System board is missing or invalid ct number message, then you need to get the Notebook serviced 

Please contact HP Support for Service Options

Click on this link - https://support.hp.com/us-en/contact-hp?openCLC=true and select your Country to get the Contact details for HP Support

Thank you

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