Newly bought ZBT-1 firmware cannot configured

marcomr · April 2, 2025, 5:13pm

I purchased new Home Assistant Connect ZBT-1 and received it today. I want to use it for Thread only ( I have SLZB-06M for Zigbee network set up).

When plugged in to USB (2.0) on Raspberry PI 5 running HA OS, it gets detected, but wizard always ends with error:

The radio firmware on your Home Assistant Connect ZBT-1 could not be determined. Make sure that no other integration or add-on is currently trying to communicate with the device. If you are running Home Assistant OS in a virtual machine or in Docker, please make sure that permissions are set correctly for the device.

I am currently running :

Core2025.3.4
Supervisor2025.03.4
Operating System15.1
Frontend20250306.0

When I restart Raspberry Pi, the stick is detected again…

Supervisor logs

2025-04-02 18:31:18.706 INFO (MainThread) [supervisor.hardware.monitor] Detecting add hardware /dev/bus/usb/001/002 - None
2025-04-02 18:31:18.733 INFO (MainThread) [supervisor.hardware.monitor] Detecting add hardware /dev/gpiochip14 - None
2025-04-02 18:31:18.735 INFO (MainThread) [supervisor.hardware.monitor] Detecting add hardware /dev/ttyUSB0 - /dev/serial/by-id/usb-Nabu_Casa_Home_Assistant_Connect_ZBT-1_3c88a6c543eced11b41f111d62c613ac-if00-port0

OpenThread Border Router log:

-----------------------------------------------------------
 Add-on: OpenThread Border Router
 OpenThread Border Router add-on
-----------------------------------------------------------
 Add-on version: 2.13.0
 You are running the latest version of this add-on.
 System: Home Assistant OS 15.1  (aarch64 / raspberrypi5-64)
 Home Assistant Core: 2025.3.4
 Home Assistant Supervisor: 2025.03.4
-----------------------------------------------------------
 Please, share the above information when looking for help
 or support in, e.g., GitHub, forums or the Discord chat.
-----------------------------------------------------------
s6-rc: info: service banner successfully started
s6-rc: info: service universal-silabs-flasher: starting
[18:57:49] INFO: Checking /dev/ttyUSB0 identifying Home Assistant Connect ZBT-1 from Nabu Casa.
[18:57:49] INFO: Starting universal-silabs-flasher with /dev/ttyUSB0
2025-04-02 18:57:49.872 homeassistant universal_silabs_flasher.flash INFO Extracted GBL metadata: NabuCasaMetadata(metadata_version=2, sdk_version='4.4.4', ezsp_version=None, ot_rcp_version='SL-OPENTHREAD/2.4.4.0_GitHub-7074a43e4' (2.4.4.0), cpc_version=None, fw_type=<FirmwareImageType.OPENTHREAD_RCP: 'openthread_rcp'>, fw_variant=None, baudrate=460800)
2025-04-02 18:57:49.872 homeassistant universal_silabs_flasher.flasher INFO Probing ApplicationType.GECKO_BOOTLOADER at 115200 baud
2025-04-02 18:57:57.088 homeassistant universal_silabs_flasher.flasher INFO Probing ApplicationType.SPINEL at 460800 baud
2025-04-02 18:58:01.749 homeassistant universal_silabs_flasher.flasher INFO Detected ApplicationType.SPINEL, version 'SL-OPENTHREAD/2.4.4.0_GitHub-7074a43e4' (2.4.4.0) at 460800 baudrate (bootloader baudrate None)
2025-04-02 18:58:01.749 homeassistant universal_silabs_flasher.flash INFO Firmware version 'SL-OPENTHREAD/2.4.4.0_GitHub-7074a43e4' (2.4.4.0) is flashed, not re-installing
s6-rc: info: service universal-silabs-flasher successfully started
s6-rc: info: service otbr-agent: starting
[18:58:02] INFO: Setup OTBR firewall...
[18:58:02] INFO: Starting otbr-agent...
[NOTE]-AGENT---: Running 0.3.0-b067e5ac-dirty
[NOTE]-AGENT---: Thread version: 1.3.0
[NOTE]-AGENT---: Thread interface: wpan0
[NOTE]-AGENT---: Radio URL: spinel+hdlc+uart:///dev/ttyUSB0?uart-baudrate=460800&uart-flow-control
[NOTE]-AGENT---: Radio URL: trel://end0
[NOTE]-ILS-----: Infra link selected: end0
51d.15:41:33.213 [C] P-SpinelDrive-: Software reset co-processor successfully
00:00:00.046 [N] RoutingManager: BR ULA prefix: fd28:bdb2:4024::/48 (loaded)
00:00:00.046 [N] RoutingManager: Local on-link prefix: fd9c:2aef:47c9:81cb::/64
00:00:00.066 [N] Mle-----------: Role disabled -> detached
00:00:00.080 [N] P-Netif-------: Changing interface state to up.
00:00:00.090 [W] P-Netif-------: Failed to process request#2: No such process
00:00:00.090 [W] P-Netif-------: Failed to process request#6: No such process
s6-rc: info: service otbr-agent successfully started
s6-rc: info: service otbr-agent-configure: starting
Done
00:00:00.336 [W] P-Daemon------: Daemon read: Connection reset by peer
s6-rc: info: service otbr-agent-configure successfully started
s6-rc: info: service otbr-agent-rest-discovery: starting
00:00:00.448 [W] P-Daemon------: Daemon read: Connection reset by peer
[18:58:03] INFO: Successfully sent discovery information to Home Assistant.
s6-rc: info: service otbr-agent-rest-discovery successfully started
s6-rc: info: service legacy-services: starting
s6-rc: info: service legacy-services successfully started
00:00:27.065 [N] Mle-----------: RLOC16 3000 -> fffe
00:00:27.355 [N] Mle-----------: Attach attempt 1, AnyPartition reattaching with Active Dataset
00:00:33.855 [N] RouterTable---: Allocate router id 12
00:00:33.855 [N] Mle-----------: RLOC16 fffe -> 3000
00:00:33.858 [N] Mle-----------: Role detached -> leader
00:00:33.858 [N] Mle-----------: Partition ID 0x3e86e2e4
[NOTE]-BBA-----: BackboneAgent: Backbone Router becomes Primary!
00:00:38.052 [W] DuaManager----: Failed to perform next registration: NotFound

It’s listed under all hardware (I believe):

Subsystem:
usb
Device path:
/dev/bus/usb/001/002
Attributes:
BUSNUM: '001'
DEVNAME: /dev/bus/usb/001/002
DEVNUM: '002'
DEVPATH: /devices/platform/axi/1000120000.pcie/1f00200000.usb/xhci-hcd.0/usb1/1-2
DEVTYPE: usb_device
DRIVER: usb
ID_BUS: usb
ID_FOR_SEAT: usb-platform-xhci-hcd_0-usb-0_2
ID_MODEL: Home_Assistant_Connect_ZBT-1
ID_MODEL_ENC: Home\x20Assistant\x20Connect\x20ZBT-1
ID_MODEL_ID: ea60
ID_PATH: platform-xhci-hcd.0-usb-0:2
ID_PATH_TAG: platform-xhci-hcd_0-usb-0_2
ID_PATH_WITH_USB_REVISION: platform-xhci-hcd.0-usbv2-0:2
ID_REVISION: '0100'
ID_SERIAL: Nabu_Casa_Home_Assistant_Connect_ZBT-1_3c88a6c543eced11b41f111d62c613ac
ID_SERIAL_SHORT: 3c88a6c543eced11b41f111d62c613ac
ID_USB_INTERFACES: ':ff0000:'
ID_USB_MODEL: Home_Assistant_Connect_ZBT-1
ID_USB_MODEL_ENC: Home\x20Assistant\x20Connect\x20ZBT-1
ID_USB_MODEL_ID: ea60
ID_USB_REVISION: '0100'
ID_USB_SERIAL: Nabu_Casa_Home_Assistant_Connect_ZBT-1_3c88a6c543eced11b41f111d62c613ac
ID_USB_SERIAL_SHORT: 3c88a6c543eced11b41f111d62c613ac
ID_USB_VENDOR: Nabu_Casa
ID_USB_VENDOR_ENC: Nabu\x20Casa
ID_USB_VENDOR_ID: 10c4
ID_VENDOR: Nabu_Casa
ID_VENDOR_ENC: Nabu\x20Casa
ID_VENDOR_ID: 10c4
MAJOR: '189'
MINOR: '1'
PRODUCT: 10c4/ea60/100
SUBSYSTEM: usb
TAGS: ':seat:'
TYPE: 0/0/0
USEC_INITIALIZED: '166319456678'

and also

Subsystem:
tty
Device path:
/dev/ttyUSB0
ID:
/dev/serial/by-id/usb-Nabu_Casa_Home_Assistant_Connect_ZBT-1_3c88a6c543eced11b41f111d62c613ac-if00-port0
Attributes:
DEVLINKS: >-
  /dev/serial/by-id/usb-Nabu_Casa_Home_Assistant_Connect_ZBT-1_3c88a6c543eced11b41f111d62c613ac-if00-port0
  /dev/serial/by-path/platform-xhci-hcd.0-usb-0:2:1.0-port0
  /dev/serial/by-path/platform-xhci-hcd.0-usbv2-0:2:1.0-port0
DEVNAME: /dev/ttyUSB0
DEVPATH: >-
  /devices/platform/axi/1000120000.pcie/1f00200000.usb/xhci-hcd.0/usb1/1-2/1-2:1.0/ttyUSB0/tty/ttyUSB0
ID_BUS: usb
ID_MODEL: Home_Assistant_Connect_ZBT-1
ID_MODEL_ENC: Home\x20Assistant\x20Connect\x20ZBT-1
ID_MODEL_ID: ea60
ID_PATH: platform-xhci-hcd.0-usb-0:2:1.0
ID_PATH_TAG: platform-xhci-hcd_0-usb-0_2_1_0
ID_PATH_WITH_USB_REVISION: platform-xhci-hcd.0-usbv2-0:2:1.0
ID_REVISION: '0100'
ID_SERIAL: Nabu_Casa_Home_Assistant_Connect_ZBT-1_3c88a6c543eced11b41f111d62c613ac
ID_SERIAL_SHORT: 3c88a6c543eced11b41f111d62c613ac
ID_TYPE: generic
ID_USB_DRIVER: cp210x
ID_USB_INTERFACES: ':ff0000:'
ID_USB_INTERFACE_NUM: '00'
ID_USB_MODEL: Home_Assistant_Connect_ZBT-1
ID_USB_MODEL_ENC: Home\x20Assistant\x20Connect\x20ZBT-1
ID_USB_MODEL_ID: ea60
ID_USB_REVISION: '0100'
ID_USB_SERIAL: Nabu_Casa_Home_Assistant_Connect_ZBT-1_3c88a6c543eced11b41f111d62c613ac
ID_USB_SERIAL_SHORT: 3c88a6c543eced11b41f111d62c613ac
ID_USB_TYPE: generic
ID_USB_VENDOR: Nabu_Casa
ID_USB_VENDOR_ENC: Nabu\x20Casa
ID_USB_VENDOR_ID: 10c4
ID_VENDOR: Nabu_Casa
ID_VENDOR_ENC: Nabu\x20Casa
ID_VENDOR_ID: 10c4
MAJOR: '188'
MINOR: '0'
SUBSYSTEM: tty
TAGS: ':systemd:'
USEC_INITIALIZED: '166319486254'

I also see under devices → Thread

However , restart of Home Assistant - “rediscovers” “Home Assistant Connect ZBT-1” again…

Does anybody has any idea what to try?

marcomr · April 2, 2025, 5:43pm

Just to answer my own question, if somebody else in future will have similar issue:

I have temporarily disabled ZHA, and disabled autostart on OpenThread Border Router and Matter Server add-ons.
Then I restarted Home Assistant, and went through same discovery and setup procedure. This time I did not get this error message about firmware.
I then re-enabled ZHA and autostart on add-ons.

Two times restarted Home assistant again, but no more re-discoveries, and it seems to me that now everything now works as expected.

I am not sure if everything I did is really necessary, perhaps only temporary disabling “OpenThread Border Router” (or only ZHA) would be sufficient…