Hello all, I'm at a loss. I was able to update firmware by going into DFU mode on my nanoVNA, but now that is not working at all since firmware version 0.5.4. The DfuSe Demo (v3.0.6) is not recognizing the nanoVNA"c when I enter DFU mode either via "Config", "Reset and Enter DFU" or by putting the short across the pins to force DFU mode. My PC recognizes the difference between my virtual com port (normal mode) and Universal Serial Bus devices, STM32 BOOTLOADER mode (DFU) mode.
I'm not sure what has changed. Any troubleshooting tips would be greatly appreciated!
Thanks,
Brian
Brian Garber