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Cannot update firmware on new NanoVNA-H4

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Hello,

My new NanoVNA-H4 arrived today. I immediately set out to update its firmware to the latest version (v1.2.29) but have been unable to get the DFuSe_Demo_V3.0.6 bootloader to "Choose" the DFU file (NanoVNA.H4.v1.2.29). I get a "This file doesn't have a correct format..." error every time I make the attempt. I therefore cannot update the firmware in my new NanoVNA.

How can I fix this problem?

See attached screenshot.

Thank you,

JS2OLO

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Peter BENSCHBest answer

ST Technical Moderator

See my answer here.

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Peter BENSCHBest answer

ST Technical Moderator

See my answer here.

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.