Cardio Watch with Serial Number unknown

Fabio2602 Registered Users Posts: 2
Apprentice Traveler
edited January 24 in TomTom Sports
Hi all,
I have a Cardio Watch with a serial number startin with HNXXX.....

I have the USB cable probably broken , but I cannot open any issue to support since no serial number of any product starts with HN.

How can I solve it?

Thanks in Advance for the response