I recently replaced my Conbee II stick with a Sonoff one and started with MQTT.
I wondered how you might reuse that CONBEE II stick as a repeater somewhere in the house?
Do I need to modify the stick somehow, i.e. Flash it and config it?
Any help would be greatly recommended.
You would need router firmware, but as far as I know there is no router firmware for the Conbee II
You could try posting a feature request for the option to reconfigure it into a Zigbee Router via serial interface to Dresden-Elektronik here → https://github.com/dresden-elektronik/deconz-serial-protocol/issues or via their other channels found here → https://phoscon.de/en/support