I get this error when trying to add the ZHA integration for SLZB-06:
UI: Unknown error occurred
Console:
fetch-with-auth.ts:20 POST http://homeassistant.local:8123/api/config/config_entries/flow/01JY9AC385Z0X03JY8237GFB9D 500 (Internal Server Error)
HA
Installation methodHome Assistant OS
Core2025.6.1
Supervisor2025.05.5
Operating System15.2
Frontend20250531.3
SLZB-06
core firmware: v2.9.2 (up-to-date)
zigbee firmware: 20221226 (up-to-date)
Any ideas?
francisp
(Francis)
June 21, 2025, 1:48pm
2
Upgrade the zigbee firmware to 20240710 or at least 20230507. 20221226 is for sure not the latest.
1 Like
In that case, I’m not seeing the latest in the UI. I’m seeing this instead. Any idea how to force a refresh?
SLZB-06 Zigbee firmware Up-to-date
Installed version
20221226
Latest version
20221226
francisp
(Francis)
June 21, 2025, 1:57pm
4
Don’t have a SLZB-06 myself, I know LiQuid_cOOled runs 20240710 on his.
check here:
1 Like
I always use the SLZB’s built-in UI for firmware updates. It’s accessible via the device’s IP or http://slzb-06
Go to Settings and Tools and select Firmware Update
I currently running Firmware version: 20250325 with v2.9.2
1 Like
I’ve updated via the web interface for the device (thanks for the suggestion!).
It now reads:
Firmware: core: v2.9.2 / zigbee: 20250325
Unfortunately this does not solve the problem - I still see the same 500 internal server error when setting up ZHA.
Ok, I restarted HA, which seemed to get me a bit further in the process, but ultimately I still ended with the same error. I’m wondering if I’ve setup auth on something that I shouldn’t have. Not sure, but digging in.
francisp
(Francis)
June 21, 2025, 4:54pm
9
Longshot, but you don’t have Zigbee2mqtt installed?
1 Like
This was a great shout. I didn’t have Zigbee2MQTT installed, but I did have the Mosquito Broker Add-on. Removing that, fixed it. Thank you!