A. 1. Ensure that your iPhone's Bluetooth is updated and compatible with the mask. Check the mask's manual for specific Bluetooth version requirements. 2. Try resetting your iPhone's network settings by going to Settings > General > Reset > Reset Network Settings.
B. 1. If you have other Bluetooth devices, try turning them off to see if that resolves the issue. 2. Test the mask with another iPhone to determine if the issue is with the mask or your device.