Smart 4G Controller 4 relays SM4-WLTE

[@rubeneduardorojassanta]

What to do when an "operation fail" error message appears when adding the device

[@annzou2788]

Hi， To set up the APN, the device's signal light flashes every 2 seconds before you can add it.

[@carlosborja3261]

Is there any way to activate roaming? Need to use it with simbase cards

[@annzou2788]

Hello, what country are you in? The device will automatically enable roaming