320 How to update the NanoVNAH4 firmware using Windows 10 and DFU file

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Warning/Disclaimer: This is the specific process for my NanoVNA-H4, hardware version 4.2. I cannot vouch that this process will work for all units out there - proceed at your own risk. This video shows how to update the NanoVNA-H4 (H is similar) using .DFU firmware files and the Windows 10 DFuSE_Demo tool from ST. Table of Contents and links follow: • 0:00 - Introduction • 0:18 - Checking your firmware version • 0:45 - Firmware file formats • 1:06 - Obtain the DfuSe USB Demo updating tool • 2:12 - Find your .DFU firmware file • 3:20 - Starting the firmware update process • 3:42 - Put NanoVNA-H4 into DFU mode and connect to PC • 4:16 - Select the DFU file and update the NanoVNA-H4 • 5:26 - Re-calibrating the touch screen (if necessary) • 6:07 - Summary • DFUse_Demo: https://www.st.com/en/development-too... • groups.io page: https://groups.io/g/nanovna-users • Another good resource: • https://github.com/ylabrj/NanoVNA_Loa...

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