When flashing with the SONOFF Dongle Flasher, choose the Zigbee Router firmware, then start flashing.

⚠️Note：

1、After flashing the official Router firmware, the device will automatically reboot and enter pairing mode.

2、If you intend to use the ZBDongle as a signal repeater, you need to add it to the Zigbee network in ZHA or Zigbee2MQTT, following the same process as adding any other Zigbee end device.

3、To remove the device from the current network, press and hold the Boot button for more than 8 seconds, then release it. The device will re-enter pairing mode.