sci daq module firmware update failsI followed the instructions for the firmware update in the sci daq module wiki step by step, but the update doesn't start.After dragging the .uf...

sci daq module firmware update fails

I followed the instructions for the firmware update in the sci daq module wiki step by step, but the update doesn't start.
After dragging the .uf2 file on the RPI-RP2 drive, nothing happens. The screen stays black.
After a while I restarted the sci daq and checked the version number: It is still V1.0.1 and not V1.0.3
Because I thought maybe I got a single faulty product, I bought another one from a local dealer (botland). Unfortunately, the new one cannot be updatetd as well! :-(
Is the boot loader malfunctioning?