Hi there, I keep getting an update available for Home Assistant Yellow Radio firmware that popped up a few weeks ago.
According to the update popup it is for EmberZNet Zigbee
Installed version 6.10.3.0
Latest version 7.4.4.1
with a point to the release notes Release v2025.04.04-1 · NabuCasa/silabs-firmware-builder · GitHub
However it is the first time ever I get this update and it seems quite a big version jump.
I am currently running on * Core2025.4.2
Supervisor2025.04.0
Operating System15.2
Frontend20250411.0
The update keeps failing with this error message
Failed to perform the action update/install. Failed to flash firmware
Does anyone has encountered similar issues and a possible fix?
I seem to be in a similar situation. I have the HA yellow as well and see the same update option. I tried to apply the update yesterday and it started, but must have failed or something. The update still shows as available, but when I try to update, I get the same error message.
Something must have gone really wrong with the update because all my automatons have disappeared, and the zigbee radio doesn’t seem to work. I did a factory reset and restored from a backup, but ended up in the same state.
I managed to fix my HA yellow by reflashing the radio firmware. Thanks to Jorg on discord for these directions:
Deactivate ZHA on the integrations Page
Install the Silicon Labs Flasher add-on
Go to the add-on’s settings, set it to /dev/ttyAMA1 and save the changes
Start the add-on and observe the progress on the logs page (it should finish with code 0)
Reboot once the add on is done
Reactivate ZHA on the integrations page
This got my radio working again. The radio firmware was still out of date, but I applied the pending update without any problems.
One problem I encountered was all the zigbee devices I had set up lost their firendly names. I’m not sure if this was caused by the initial firmware update failure, the successful flash, the reset/restore I did, or some other step. I just had to re-name all my devices, which gave me the opportunity to do it in a much more consistent manner.
Hopefully this helps you @diegofox82 or someone else in a similar situation.
I’ve tried the above process (multiple times now), and unfortunately it seems like my Yellow will not successfully initialize Zigbee anymore, despite debug logging showing the Silicon Labs Flasher flash it to 100% successfully multiple times
the 7.4.4.2 version is now out, and I blindly clicked update as is my way. Its been updating for 11 hours and is at 5%. Presumably interrupting it would be a terrible idea?
Sadly nearly the samme happend to my HomeAssistant Yellow. Zigbee died on the Update to 7.4.4.2. Now it won’t initialyze and all the mentioned methods failed.
It still shows an availiable Update but every try to flash it ends with “Failed to flash firmware”
And so far there seems no “low level” method to reflash a broken firmware, so it seems its dead for good. The Matter Radio still works, thats what confuses me a bit. I thought this is a combined radio
The Yellow only has one radio. You can flash it with Zigbee firmware, Thread firmware or Multi-protocol firmware. It is already a long time Nabu Casa has warned against the use of multi-protocol. If “The Matter Radio” still works (I assume Thread), and Zigbee no longer, seems you have a problem with the multi-protocol firmware.
My HA Yellow due to an update killed my Zigbee Home Automation. I don’t have any other integrations using default zigbee radio and the flasher doesn’t fix it. I honstly don’t what to do further.
I had same issue updating to 7.4.4.3. Restarting the system did not work alone.
Ended up disabling ZHA, rebooting the system and then the radio update went through fine. Seems ZHA somehow prevents the update from succeeding in some cases?
Only one process can use the serial port at the time. So either ZHA is using the port, or the update process is using the port. Both at the same time is recipe for problems.
