@bee-a-trice
I reviewed your post and I understand that the HP pen is not working.
Don’t worry, I assure you I will try my best to get this sorted.
I recommend you follow the steps in the below article and check if it helps.
https://support.hp.com/in-en/document/c04706945
For the warranty claim, you need to contact support and they will assist you in this regard.
Here is how you can get in touch with support.
1)Click on this link – www.hp.com/contacthp/
2)Select the product type.
3)Enter the serial number of your device or select let HP detect your product option.
4)Select the country from the drop-down.
5)You should see the HP phone support number or Chat option listed.
Let me know how it goes and you have a great day!
P.S: Welcome to the HP Support Community 😊
If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!
Cheers!
Stay Home – Stay Safe
The_Fossette
I am an HP Employee