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- HP Community
- Printers
- Printer Setup, Software & Drivers
- Serial Number

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02-18-2025 10:06 AM
Keep receiving error “enter valid serial number” after typing in the characters following S/N - can’t move forward to get help with 1st problem
New Printer 1st time printing - just want to print page 1 of an 11 page document
have now been working 45 minutes for a solution
appreciate any help guidance - there is no way that I can find to talk to customer support
thank you
02-21-2025 07:55 AM
Hey @Need2print2, Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
It sounds like you're dealing with two issues:
Issue 1: "Enter valid serial number" error
- Double-check the serial number format: It usually consists of letters and numbers (no spaces). Look for "S/N" on the printer label.
- Use HP Support Assistant or HP Smart App: These tools might detect the serial number automatically.
- Try entering in lowercase: Some users report that lowercase letters work.
- If your printer is enrolled in HP Instant Ink, check your HP account: The serial number may be listed there.
Issue 2: Printing Page 1 Only
- If using HP Smart App, go to Print > Choose Document > Select Range: Page 1.
- If using Microsoft Word/PDF viewer, go to Print settings and choose Page Range: 1 before clicking Print.
- If using a mobile device, check the print preview screen for page selection options.
I hope this helps.
Take care and have a good day.
Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
Max3Aj
HP Support