General description.

For security reasons, the "Open" (US/DE/IT/ES/FR/UK users)or “Unlock” (CA/AU/MX users) function is disabled by default. You can enable it in the Alexa app device settings.

Method of enabling this option.

Please follow the figure below. (This function is only available for the Meross skill.) 

For US/DE/IT/ES/FR/UK users:

For CA/AU/MX users:

Regarding the “Unlock by voice” function, Alexa requires the user to set a 4-digit code. Alexa will verify this code each time you try to unlock the garage door. If you enter the code mistakenly three times in a row, the “Unlock” function will be disabled, and you will need to enable it again.