I have a NanoVNA-H4, edy555 design, it says I have version 0.5.0 Feb 21-2020. I downloaded v1.0.39.rar, extracted it using 7 zip, am running the DfuSE demo softwate, I place the unit in DFU mode by pressing the multiswtich down while turning on. the software recognizes the device, I chose the extracted dfu file from the Upload Verify section. I chose upgrade.....it erases, then uploads, but when I restart the nano, its still version 0.5.0....what am I doing wrong?
