Hi @martin181818
Looks like the R1 revision doesn't have one, but instead has the boot button.
I suggest pressing the button, then plugging in the USB cable and releasing the button after. This should boot the device into USB mode which will make it act like standard non-poe device.
Flashing should remain the same, just make sure to select NETWORK bootloader (not AUTO or USB). To ensure proper BL is flashed and that ETH capabilities are enabled after flash.
Thanks,
Jaka
