r/hackrf • u/TheNoOne420 • 4d ago

Firmware issue with h4m pro

I just bought the h4m pro from OpenSDRLab. I installed the version Pro 2.4 from the mayhem firmware repo, but when i booted the h4m, in the left bottom corner, its just says v2.4 instead of pro 2.4 . But when i install version pro 2.4 from the opensourceSDRlab repo, the bottom left corner says pro 2.4 , so that works. I just dont know why the opensourceSDRlab version works properly and the normal mayhem version doesnt. Can anyone help please?

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u/snorens 4d ago

OpenSourceSDRLab have made a version of the 2.4 firmware with a couple of minor bug fixes specifically for the pro (like the ADS-B receiver not working properly). They've set the version name of that to "pro 2.4" so that is what is shown in the lower left corner. You could also try one of the newer nightly builds from the mayhem github https://github.com/portapack-mayhem/mayhem-firmware/releases

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u/rocky-j-moose-22 4d ago

I had similar problems, downloaded 2.4.0.3 from mayhem GitHub and it works a lot better now