Buttons & LEDs

GL-S20 has two buttons, IoT and Reset.

IoT Button

The IoT button allows you to perform these actions:

Function	Instruction
Join Thread network	When the device is not connected to a Thread network, press and hold the IoT button for 2 seconds. Release the button when the IoT LED starts flashing green slowly.
Create Thread network	When the device is not connected to a Thread network, press and hold the IoT button for 8 seconds. Release the button when the IoT LED starts flashing green slowly.
Start Commissioning	When your device is connected to a Thread Network, press and hold the IoT button for 2 seconds. Release it when the IoT LED starts flashing yellow slowly.
Disable Thread network	When your device is connected to a Thread Network, press and hold the IoT button for 8 seconds. Release it when the IoT LED starts flashing yellow slowly.

Reset Button

Reset button function	Instruction
Reset Thread/Wi-Fi/Ethernet configuration	Press and hold the Reset button for 2 seconds. Release it when all 3 LEDs start flashing slowly.
Restore factory settings	Press and hold the Reset button for 8 seconds. Release it when all 3 LEDs start flashing rapidly.

LED description

Device Status	Power LED	IoT LED	Network LED
System starting	Green flashing	-	-
Device not initialized	Solid Yellow	-	-
Firmware upgrading	Fast Green flashing	Fast Green flashing	Fast Green flashing
Restoring factory settings	Fast Yellow flashing	Fast Yellow flashing	Fast Yellow flashing
Repairing firmware	Red flashing	-	-
Device abnormality	Solid Red	Solid Red	Solid Red

Network Status	Network LED
Network connected	Solid Green
Network disconnected	Solid Red
Network is connected but connectivity check failed	Solid Yellow

Thread Network Status	IoT LED
Thread Uninitialized	OFF
Thread working normally	Solid Green
Joining Thread network (Thread Router)	Flashing Green
Thread network disconnected (Thread Router)	Flashing Red
Thread Commissioning enabled	Flashing Yellow