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Tonight NanoVNA Saver started crashing a few seconds after I connect to the first gen NanoVNA I've been using for a long time. The program finds the serial port, and is stable until I connect. It says

According to information I found, the MS version will have a _M after the model number. Both my NanoVNA-H and NanoVNA-H4 do not have the _M after the model number so they are SI models. There is also

Tim and Dragan, Thanks for your inputs. I have now updated my H4 with the SI dfu file.

Several years old use SI version. MS version is for recent production units with MS on the back label. Roger

/g/nanovna-users/message/29639

I have a NanoVNA-H4 which is several years old. The back says HW version 4.2. The firmware lists contain either a "MS" or "SI". My 5351 says "BG008 006. Which version of firmware should I use? Thanks,

Did you get the answer to your original question and get the WIN7 software I posted working? Roger

It is practically impossible to brick these, even if you deleted the bootloader there are programing headers on the board. It should be explained in the community manual. [email protected]> wrote:

The MS/SI tag only came into being after there were two types. Those with no tag, iirc, are the SI. (Actually, unless this latest .14 build changed something, the code in the SI and MS builds is

Hi Roger, Thanks for your reply. The label of my back shell only says...HW Version 4.2, SN: SN:H$-xxx71290. I do not see nay mention of MS or SI. bought my unit from R&L Electronics in Sep '20. Could

On the NanoVNA-H and NanoVNA-H4, if MS5351M is used, the MS suffix is added to the version number on the label of the backshell, such as 3.6_MS or 4.3_MS. Roger

Thanks Hugen for your info. I think I'm missing something, it appears to me that there are two versions of each fw files an MS_xxxx and SI_xxxx, could you please guide me on which dfu file version I

https://github.com/hugen79/NanoVNA-H/releases/tag/1.2.14 Alex N7AWK

The video shows the driver in the BIN file in the program86 folder . FYI I got mine to talking, still get. Scattered lines after calibration. Trash can, bummer:(

I can't find 1.2.14 -- where is it? - John

I had the same issue using the DFuSe program on windows 10- the issue is in the download From STM v 3.06 the driver file is missing. I found it to download a generic drive and it worked very well- I

Of course you did! Win 98 was terrible!

Just FYI.. None of the highly qualified PC professional and or PhD gurus I know will allow Win 11 in their machines until it has had a few years on the market for Microsoft to work out the bugs. There

Well did clear config , did touch cal, screen cal , I did a actual calibration. This is what I get .

Thank you I will try that :) I basically gave up , I might be buying a rig expert zoom35 ?