release the button. Then the router will restart with the factory
default configuration.
LAN1~LAN4 Connecters for local network devices.
WAN1~WAN2 Connecter for local network devices or modem for accessing
Internet.
USB1~2 / USB Connecter for a USB device (for 3G/4G USB Modem or printer or
thermometer).
PWR Connecter for a power adapter.
ON/OFF Power Switch.
SIM Card Slot Connector for a SIM card.