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- HP Community
- Notebooks
- Notebook Boot and Lockup
- Re: Product information not valid

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09-16-2020 01:54 AM - edited 09-17-2020 03:40 AM
When starting up my laptop, a black screen appears saying "product information is not valid". The following product information programmed into the system board is missing or invalid:
- Product Name
- Product Serial number
- Product number
- System board CT number
When opening HP PC Hardware Diagnostics, it is clear this product information is missing. How can I fill in this information and where can I find this information?
My problem is also described on this page: https://support.hp.com/us-en/document/c01443496
What can I do to solve this problem?
09-18-2020 12:05 PM - edited 09-18-2020 12:05 PM
Thank you for posting on HP Support Community.
Don't worry as I'll be glad to help,
You might see this message after the system board is replaced. The message indicates that the serial number was not entered, or was entered incorrectly, after replacing the system board or other component.
To resolve this issue, contact HP using the Contact Support tab at the top of this screen. You will be asked to provide the fourteen-digit System Board Commodity Tracking (CT) Number. Use the steps in one of the following sections to find the CT Number:
Find the CT Number in System Information
Turn off the computer.
Turn on the computer and immediately press the Esc key repeatedly, about once every second.
Press F1 to view System Information.
Find the System Board CT Number listed on the System Information screen.
Figure : System Board CD Number
Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
ECHO_LAKE
I am an HP Employee
09-20-2020 11:38 AM
When I start my laptop, the black screen with text appears immediately. If I press the esc key repeatedly, nothing happens. The black screen with text is still there. Pressing the f1 key also does nothing.
After pressing Enter, my laptop starts normally and pressing the Esc key has no effect.
What I am doing wrong?
09-22-2020 04:50 PM
Thank you for posting back.
This sounds like hardware related issue,
Since you have already tried most of the troubleshooting steps to resolve this issue,
I would request you to reach out to our Support and our Support Engineers should be able to check the available service options in order to diagnose the computer physically. HP Support can be reached by clicking on the following link: www.hp.com/contacthp/
Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
ECHO_LAKE
I am an HP Employee