Hi Darren_486,
Thank you for reaching Microsoft Community. I'm sorry to hear about the pairing issue you are having with your Surface Headphones 1 and we appreciate the time and effort spent to troubleshoot prior to posting.
When you press and hold the Power button for 5 seconds, is there some LED activity or none at all?
Please try doing a firmware reset on the headphones using the steps provided below (Reset Surface Headphones (microsoft.com)):
- Plug the USB cable into your Windows 10/11 PC or into a USB power adapter (not included) for a wall outlet.
- Press and hold the power button on your headphones.
- While still holding down the power button, connect the USB-C end to your headphones.
- Release the power button.
After doing the reset, try pairing again and see if it resolves the issue.
Kind regards,
Marrion