MMDVM HS HAT Error - Failed to Init Device

[KI7UXT]

You're powering your Pi using the wrong USB socket, use the other one (the one next to the corner).

Thanks Daniel, I didn't know that and will use the USB socket by the corner. I did try both USB sockets, and didn't fix my Pi 0 + mmdvmhshat communication error.

[KI7UXT]

It is often possible to fix this but it involves removing the OLED panel as the TCXO in question is underneath it.

If you are not set up for this I would suggest returning the board for a refund if you bought it via ebay or similar.

Thanks Brian, the JumboSpot is almost 2 years old and I purchased it from Alli Express.

[f1rmb]

Hi Kell,

You're powering your Pi using the wrong USB socket, use the other one (the one next to the corner).

Thanks Daniel, I didn't know that and will use the USB socket by the corner. I did try both USB sockets, and didn't fix my Pi 0 + mmdvmhshat communication error.

Okay, maybe you can also redo the solder joints on the 2x5 headers on both boards.

Cheers.
---
Daniel

[KI7UXT]

Thank you KE7FNS and F1RMB (Daniel) for taking the time to try and help me. I truly appreciate the help in trouble shooting. I've learned a bunch, and even last night I thought I might as well try a new Pi image (which I have never done before), so I grabbed a spare micro SD card, dl the Pi firmware, and created a boot image. The JumboSpot fired right up, but unfortunately the mmdvmhshat still had the communication error message. I got a lot of good use out of this JumboSpot, and just like me, its older and things just go bad for one reason or another. I will replace it with a new one shortly. But I will surely try the suggestions of unsoldering and soldering, and maybe get access to the pins. Will be a good learning experience for me. Thank you again and 73 to you both.