S/N for new keyboard is not recognised

[Quickiller]

I buyed HP mechinical keyboard from Amazon named as MK400f

S/N: [edited]

But for some reason when i put sn no. for registering its warranty it says invalid product sn no. Is there any way or different website to register keyboards warranty? 

Yes i tired your AI watsapp support it shows support for only printers and desktops.

Yes Email support do not reply i hope to find some help here.

[Deep_World]

Hi @Quickiller,

Welcome to the HP Support Community!

Thanks for reaching out!

We're thrilled to have the opportunity to assist you and provide a solution.

I’m sorry you’re going through this; I understand the concern and don’t worry I’ll help you with this.

To better understand the issue, could you please provide a few more details?

1.Exactly where are you entering the S/N on the global HP registration page, or a region‑specific one ?

2.Did the Amazon order invoice come with a separate “serial number” field, or did you copy the serial from the keyboard box/label?

3.What date did you purchase the keyboard was it very recent, or has some time passed?

4. Try entering the serial Number over here in this link : https://support.hp.com/in-en

I hope this helps 

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 

Take care and have an amazing day ahead! 

Best regards,

Deep_World

[Quickiller]

1. On the link you provided below shows the same problem 

2. I tried S/N: which your website says is behind the keyboard or product and even every numbers on Amazon invoice.

3. Date of purchase: 2/12/2025

4. Did try regional while selecting India, as well still no use product is shown as invalid.

[Deep_World]

Hi @Quickiller,

Thanks for your response. It looks like you’re still having issue finding the details of the serial number. 

To get you the best assistance, we need to take this conversation to a private chat. We're inviting you to a private message to protect your privacy and ensure that any sensitive information remains confidential. 

To access your private message, just click the little blue envelope icon on the upper right corner of your HP Community profile, next to your profile name. Alternatively, you can click on this link. 

You can use this link as well: 

Private Messages - HP Support Community

We're looking forward to helping you resolve this issue! 

Stay tuned, and thanks for your patience! 

Best regards,

Deep_World