Hi Maureen Akal,
I understand how frustrating it is when your mouse suddenly disappeared from Bluetooth devices, especially since the batteries are new and no button was found on the device. Since you've probably tried the common troubleshooting steps, it would help to identify the exact Surface mouse model before going further. Could you please provide:
- The exact model name of the mouse (check the bottom of the mouse)
- Photos of the mouse (top, bottom, including any labels, battery compartment)
- In addition, a photo of the battery compartment after removing the cover (if possible)
- If you still have the box or/and the manual of the mouse, it's also worth checking them.
Once we can identify the mouse model, we can provide more accurate troubleshooting steps. Right now, giving guidance would be generic solutions and likely won't help with your case. Also, it'll be helpful if you end up needing repair/replacement service.
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