ZHA fails with newer Conbee II firmware

Configuration Zigbee
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1

My ZHA does not seem work with newer firmwares of Conbee II. Restoring to older firmware makes it work again.

I have HA running on Synology NAS VM, and I have a Conbee II, that I used with Deconz on a Rpi3, but it didn’t work well. I learned that it did not report many entities. And some new devices did not work at all.
So, I move the Conbee II to the USB port of the NAS, linked it in VM to HA, and now I am running ZHA.
It works okay. But I noticed that some devices still don’t report all the entities. Like some don’t report power usage, just the energy usage.

The firmware of the Conbee II is 0x26660700, and if I update it to 0x26780700 the ZHA intergration can’t find the Zigbee interface. No matter what I try.

But when I load the original firmware version back again. And reboot and stuff. It connects fine and show my stuff again.
I tried the “migrate to a new radio” option, as I thought it might see the new firmware as a new radio, but it warns me that the original firmware should be 0x267xxx, which it is not. And it didn’t work anyway.

I tried all the versions between 0x26660700 and 0x26780700 , but none work.
The only one that makes ZHA load is the original version 0x26660700. which is over 3 years old.

Should I just trash the Zigbee interface and get some other zigbee interface that works with ZHA? I don’t like to wast money.

2

How are you updating the firmware? I updated my Conbee II a couple of months ago to 0x26780700 without issue using these instructions:

How to update ConBee/ConBee II firmware in Windows 10 - Flemming’s Blog (flemmingss.com)

Note I just used the GCCFlasher executable and did not have Phoscon installed. I updated the Conbee II on a windows laptop and not my Home Assistant computer.

Output of debug:

    "application_state": {
      "node_info": {
        "nwk": 0,
        "ieee": "**REDACTED**",
        "logical_type": 0,
        "model": "Conbee II",
        "manufacturer": "dresden elektronik",
        "version": "0x26780700"

So I am an example that it can be done successfully.

3

I updated using a Windows 10 computer as well.
And it when through the process nicely (After I changed the comport from 8 to 1).

What version did you update from?
And were you using the Conbee with old version before you updated?
Or did you start using it only after you updated?

4

I’m not sure what version it was originally on, I purchased it about 2 years ago. I ran for over a year on the firmware delivered on the device. I upgraded to the current version after purchasing a spare device and had confidence I could recover should something catastrophic happen.

Probably been running the new firmware for 4-6 months. No real noticeable differences, ZHA was pretty stable for me before upgrading.