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Re: nano vna h black screen

 

Thank you, Thank you… that did the trick. Your help and patience is much appreciated, I learned something today, now if i can just remember it. This technologically challenged old F er really appreciates you taking the time to help. Thanks again.
Cheers

On Mar 2, 2025, at 8:07?PM, Stan Dye via groups.io <standye@...> wrote:

?You must use only the upgrade/verify portion of dfusedemo. If you first used the upload function, you overwrote your firmware file with the content of the nanovna, trashing it before you used it for the upgrade/verify function. [The dfusedemo program uses the "upload" term to refer to fetching data from the nanovna].

So it is worth trying again with a fresh copy the H4 file newly downloaded.
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