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Hi,
I just received my NanoVNA V2Plus4 and have been exploring its behaviour with the NanoVNA-Saver and NanoVNA-QT software. I've encountered some interesting observations which I have reported to HCXQS as follows:
1. If I flash the NanoVNA V2Plus4 with an older version of firmware, 20211227, then NanoVNA-Saver recognizes the V2Plus4 and runs. This points to a problem with the latest firmware release, 20220301 which appears to corrupt the USB interface, rendering the Saver application unusable with the V2.
2. Unfortunately when I try to capture data using the older firmware, 2021122, the data is corrupted and is not usable. Capturing data using the latest firmware, 20220301 gives good results.
At this time, this leaves me with no alternative other than to use NanoVNA-QT and the current firmware. Obviously I look forward to your NEXT firmware release.
In minutes I received an email response from HCXQS thanking me for my comments and indicating that they will look into the problem. Whether the fix lies with a V2 firmware update or with Saver itself is their decision. In the meantime I will keep an eye open for new updates.
Hope this helps.
73
Dave VE3TLY