If you encounter an error while pairing your HomeKit device, please follow these steps:

a. Verify if the smart accessory has lost power supply.

b. Reboot your iOS device to clear the Home app cache, then retry pairing.

c. Power cycle the accessory. For a light switch, reboot it at the circuit breaker.

d. Log in to your Wi-Fi router to check if MAC filtering or Access Control is enabled. If so, disable it until the accessory is successfully added.

If the issue persists, please contact Meross Support.