Montag
I am trying to connect a Bosch Motion Detector II [+M] (BSEN-M2D) to a Bosch Smart Home Controller II. The sensor previously worked correctly via Matter/Thread in Home Assistant and has since been removed from Home Assistant.
After performing a factory reset, the status LED first lights up green and then starts flashing blue. In the Bosch Smart Home app, I scan the QR code and start the pairing process, but eventually receive the message: “Device not found / Check Zigbee key.”
When I follow the instructions in the app and press and hold the control button on top of the motion detector for at least 5 seconds, the status LED does not start flashing orange. Only the white orientation light at the bottom remains illuminated while the button is pressed. As soon as I release the button, the white light turns off and the status LED briefly lights up red.
The Zigbee EUI-64 and Install Code are printed on the sensor label.
Could you please advise how I can correctly switch the BSEN-M2D from Matter/Thread mode to Zigbee mode and pair it with the Bosch Smart Home Controller II?
Montag
Hey @Bart . It sounds to me like the factory reset didn't work properly. During the pairing process, the Bosch app switches the motion sensor from Thread to ZigBee.
Montag
@Bart please follow the steps from the video: Reset