H4 Firmware update error

Mark Jordan All Messages By This Member #39355 Tried to update my H4 with the app and got this error: Opening \\?\usb#vid_0483&pid_df11#206a31562031#{a5dcbf10-6530-11d2-901f-00c04fb951ed} ?open failed Device Manager shows NanoVNA-H4 is connected. What to do? Mark Jordan, PY3SS
DiSlord Member Profile All Messages By This Member #39356 NanoVNA App need use DFUSe driver for device in DFU mode, by default windows install driver for STM32CubeProgrammer (this driver allow flash in this software, but not work for NanoVNA-App or DFUSeDemo)
Mark Jordan All Messages By This Member #39364 I changed the driver and problem solved! ??? Thank you! ??? Mark Jordan, PY3SS toggle quoted message Show quoted text On 05-Feb-25 14:36, DiSlord via groups.io wrote: NanoVNA App need use DFUSe driver for device in DFU mode, by default windows install driver for STM32CubeProgrammer (this driver allow flash in this software, but not work for NanoVNA-App or DFUSeDemo)

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