ZHA TRADFRI signal repeater firmware update

Hi All,

I have connected an IKEA TRADFRI signal repeater via ConBee II and ZHA.
No deConz or other solution in place.
Is there a way (not necessarily via ota - free to use USB or other connection, too), to update the TRADFRI firmware?

I already found I can find the download url of the latest repeater firmware from here: fw.ota.homesmart.ikea.net/feed/version_info.json

But how do I flash it to the device?

Thanks for your help

awesome thanks - I was not able to find this through googeling :confused: