Bosch Dimmer (BMCT-DZ): OTA updates not available despite recent addition to zigbee-OTA

[samsam963]

Hi all,

I own a Bosch dimmer (BMCT-DZ), which I have integrated in my Home Assistant setup via Zigbee2MQTT. I would like to update its firmware to fix some issues I have with the power up luminosity.

Until recently, this was only possible via a proprietary Bosch smart home hub, which I don't own. However, OTA files have been made available by Bosch and integrated into Zigbee2MQTT via PR: Add new Bosch OTAs #805. It's featured as MICROMODULE_DIMMER_0x21076A30_PROD.fw in the corresponding index.json. As far as I understand it, this should enable OTA updates for this device, correct?

I am on the latest Zigbee2MQTT version (2.6.0), but the device doesn't show up in the OTA overview. When trying to update the device via MQTT via topic zigbee2mqtt/bridge/request/device/ota_update/update, I get the following error message:
z2m: Device ... doest not support OTA updates

Has anyone managed to get OTA working for this device? And if yes, what am I missing?

Thanks for your help!

[Koenkk]

I've enabled OTA for this device!

Changes will be available in the dev branch in a few hours from now and in the next release which is every 1st of the month.

[samsam963]

Great, thanks for the update!