Vince,
Place your Nano into dfu mode, connect the Nano to your PC, then in the device manager, delete the device AND driver that shows up.
Next, right-click and search for new devices. Your Nano should be seen in dfu mode.?
Finally, if that doesn't work, install the clear-memory dfu file (link below) and then reinstall the firmware you want.?
/g/nanovna-users/files/Firmware/All%20%28known%29%20publicly%20available%20NanoVNA%20DFU%20files%20from%20May%205,%202019%20through%20to%20Sept%2029,%202019/DMR
On Sun, 6 Sep 2020 at 3:16 PM, Vince Rooney<vince@...> wrote: Yea I saw that, I unfortunately can't connect to the unit in terminal mode to execute a clearconfig command. I can't see a com port for the device on windows 7 using the virtual drivers. It's sitting on the USB hub. Would be great if one could do a clearconfig from the menu. The DFU mode is great. No more jumping pins.
Is there documents on the feature ads for each firmware update? There are new options that I don't know how to use. I dropped down to 07 and it seems to be better.
