OTA update error: image not found

Hi

I get a notification for a new firmware version for my Nodon sin 4rs20 roller shutter controller, but when I press update,it fails with an error that claims the image is not available. 152.

ZHA, HA 2025.10.2, I have an extra line in my config that adds KoenKK GitHub OTA repository.
The firmware it has found is this one, I assume, which should be version 3.05? New Images for NodOn Devices by AlexisPolegato · Pull Request #893 · Koenkk/zigbee-OTA · GitHub
The notification tells met it is version 0x00031003, I’m not sure how that translates.

Does anyone have a clue what is going wrong?