Beware of cheap underperforming clones
As of 2023 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.
See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.
NanoVNA V2 Forum
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Firmware update error #v2 #features
YH 2023/04/27 22:20
Hello.
I am now using v4.
When I tried to update firmware, following error has occured
Exception: Invalid argument error is displayed, and update was no possible.
How can I fix this error?
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