Zigbee2mqtt with Connect ZBT-1: I really cannot make it start

Configuration Zigbee
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1

Hello,

I have recently installed Home assistant in a Raspberry Pi4 and added a Zigbee antenna (Connect ZBT-1)

  • Core 2025.5.0
  • Supervisor 2025.04.1
  • Operating System 15.2
  • Frontend 20250507.0

I have tried to follow multiple YT vides, even red the official documentation, but no luck at all!

Here the followed steps:

  1. Installed Mosquitto broker Add-On and started (with default setting)
  2. installed Zigbee2Mqtt Add-On, added the Device URL and started

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This does not start the add-on

The strange things are:

  1. no Log appear in the add-on log page

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  2. In Settings → System → Log, I have an error as per picture below

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My internet researches + ChatGTP have not resolved the issue…

anybody can suggest what is the error and how can I fix it?

2

Not sure if you got the device parameter from AI or a really bad YouTube video, but that option doesn’t exist in Z2M.

Wouldn’t it have been better to simplify follow the official Z2M docs instead of trying randomly suggested stuff?

3

Thank you for your suggestions…

I have performed the followings:

  • Uninstalled the zigbee2mqtt add-on
  • Unplugged the Home Assistant Connect ZBT-1 and re-plugged into another USB port
  • Reinstalled zigbee2mqtt add-on
  • Started the zigbee2mqtt add-on
  • Followed the "On-Boarding: steps:

  1. selected the zigbee antenna from the drop down

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  2. Kept all the other settings as default

  3. Starter the Service

and got the following error:

[2025-05-18 00:10:41]error: 	z2m: Error while starting zigbee-herdsman
[2025-05-18 00:10:41] error: 	z2m: Failed to start zigbee-herdsman
[2025-05-18 00:10:41] error: 	z2m: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start_crashes-runtime.html for possible solutions
[2025-05-18 00:10:41] error: 	z2m: Exiting...
[2025-05-18 00:10:42] error: 	z2m: Error: Adapter EZSP protocol version (9) is not supported by Host [13-16].
    at EmberAdapter.emberVersion (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/adapter/emberAdapter.ts:1417:19)
    at EmberAdapter.initEzsp (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/adapter/emberAdapter.ts:670:9)
    at EmberAdapter.start (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/adapter/emberAdapter.ts:1548:24)
    at Controller.start (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/controller/controller.ts:133:29)
    at Zigbee.start (/app/lib/zigbee.ts:70:27)
    at Controller.start (/app/lib/controller.ts:104:13)
    at start (/app/index.js:149:5)

anybody has the same error? shoucl I really downgrade the zigbee antenna firmware?

if yes, how can I do it remotely? (I have install Home Assistant on Raspberry Pi 4 and i access it with Cloudflare add-on…)

thank you all

4

No, you need to UPgrade the coordinator (antenna) firmware.

That error shows you a troubleshooting page. You are specifically looking for this part

5

now have:

  • uninstalled zigbee2mqtt
  • deleted zigbee2mqtt config file
  • restart HA
  • reinstalled zigbee2mqtt
  • re-filled in the onboarding page
  • started zigbee2mqtt and suddenly nothing…

the add-on does not work and the log is empty

what could it be?

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6

in /config/zigbee2mqtt , rename coordinator_backup.json to coordinator_backup.bak

7

None of what you did is what I recommended you do. You need to upgrade your coordinator, not reinstall zigbee.

8

I do not have any folder for config… form fle editor add-on…

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