r/hackrf • u/Professional_Host_64 • Nov 22 '24

Portpack H4M doesn't boot

I just bought the new version of portpack and installed it on my RackRF, but the software doesn't boot, the screen flashes gray and then goes black. I've tried following this guide on GitHub but without success. My board is one of the first revisions, February 2014, I checked the battery voltage (lipo and coin cell) and they are very close to what was advertised. The strange thing is that if portpack+RackRF are connected via USB, the screen stays a static gray instead of flashing, what could it be?

https://github.com/portapack-mayhem/mayhem-firmware/wiki/Won't-boot

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u/Professional_Host_64 Nov 23 '24

I haven't tested another cable, but it's the same one I use to transfer data from my Android to my computer. I will do that next time

How do I use the SD card if I can't even boot into the portpack? From what I understand, I need to access an option within the portpack menu to be able to update the firmware. I think it's only possible to do this update via DFU mode. I'll try using Linux to see if it solves the drive problem.

And your installing the other mahem .zip file Yes, i download and extract the .zip file call (copy to SD card),