Re-flash ZBT-1 - Any ideas?

Does anyone know how to get the ZBT-1 to use the Zigbee firmware? Whenever I try I get the following :

image

I’m using the latest HAOS - 13.2, with the current HA release 2024.11.1

I have removed the Thread/Open Thread integrations and the Open Thread Add-on. Restarted the whole unit. It refuses to go any further. Is there maybe another way to flash the Zigbee firmware on to the stick?

Currently it’s just a useless blue device :frowning:

Found a solution - the Silicon Labs Flasher add-on!