ZBT-1 FW 7.4.4.5 update issue | Home Assistant | Page 1

lost snow Nov 25, 2025, 5:42 PM

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HA shows a new FW is available for ZBT-1 (running 7.4.4.3). However when hitting the update button I'm getting an error right away.
Is anyone else battling with same issue?
HW: HA Green

Logs:

2025-11-25 19:36:49.897 INFO (MainThread) [universal_silabs_flasher.flasher] Probing ApplicationType.GECKO_BOOTLOADER at 115200 baud
2025-11-25 19:36:49.897 DEBUG (MainThread) [zigpy.serial] Opening a serial connection to '/dev/serial/by-id/usb-Nabu_Casa_Home_Assistant_Connect_ZBT-1_c4611b20f511f011823a0114773d9da9-if00-port0' (baudrate=115200, xonxoff=False, rtscts=False)
2025-11-25 19:36:49.909 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection] [281471408161632] Error during service call to update.install: Failed to flash firmware

jolly creek Nov 25, 2025, 5:47 PM

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Are you running Zigbee2MQTT?

jolly creek Nov 25, 2025, 6:04 PM

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If so, stop Zigbee2MQTT before starting the firmware update.

#ZBT-1 FW 7.4.4.5 update issue