Firmware update an old Skyconnect dongle

[dusky valve]

I've got the Skyconnect which i bought in early 2023.
At https://toolbox.openhomefoundation.org/home-assistant-connect-zbt-1/install/ they say
Firmware update through web flasher is available for all Home Assistant SkyConnect devices, and for Home Assistant ZBT-1 devices purchased after October 20, 2024.

What would be the best way to update mine?

[somber gazelle]

The SkyConnect with the old logo can be updated via the webflasher.
Just the faulty earlier batch of the ZBT-1 with the new logo cannot.