Hello Roberto, even I had the same problem. Purchased from Banggood.
I'm attaching the screenshots of my FW as-received as well as after the
upgrade I did (from the files section).
Unit is working well, though.
73,
Prem
VA3UMA
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On Tue, Oct 26, 2021 at 5:15 PM Roberto <rlugli@...> wrote:
I recently purcheased an SAA-2N nanoVNA from Amazon.
The device I received works properly but there are two strange issues
-The metal case is not correctly engraved. The writings are practically
not visible.
- The fw version (June 9 2021) as well as the information screenshot are
unusual.
Searching on internet I did not find much about it.
Regards
Roberto - IK2DID