Hello RohanKal,
Thanks for reaching out to the Microsoft Community. We're sorry to learn about this issue on your earbuds case. We'll do our best to help you out.
When you performed the reset, did you follow the Firmware reset instructed on Reset Surface Earbuds (microsoft.com)? If yes, and issue still persists, then we know it's more likely a hardware failure already. For any hardware related issue, kindly contact our support via Contact Us Microsoft Support to seek options for your earbuds and for further assistance. You can also contact them via phone, see Global Support Phone Numbers. For detailed instructions on how to contact our support, click here.
Hope this helps. Otherwise, don't hesitate to respond to this thread if there’s anything else that needs to be addressed.
Regards,
StevenK