Rune,
With all of the recent versions of nanoVNASaver (0.0.11, 0.0.12, 0.1.0, 0.1.1) I have been occasionally getting a pure white screen on the nanoVNA while making measurements using nanoVNASaver. I can continue to get good data from the device in nanoVNASaver once this happens; however, I see just a white screen on the display of the nanoVNA itself. I do not see this with other software that communicates with my device. I am not sure where the problem may be. This may be a bug in my firmware "NanoVNA-H__900_ch_20190924.dfu." Has anyone else reported this?
To restore the real-time screen on the nanoVNA I have to disconnect nanoVNASaver, restart nanoVNA, and then reconnect nanoVNASaver to the device.
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Bryan, WA5VAH