LimeSDR Mini v1.2 Connection/Operation Issues on DragonOS - LimeQuickTest and LimeUtil --update failures

General Discussion
1

I am writing to report an issue I’m experiencing with my LimeSDR Mini v1.2 device. I am currently running DragonOS FocalX (based on Ubuntu 20.04 LTS).

My setup:

  • Device: LimeSDR Mini v1.2
  • Operating System: DragonOS FocalX
  • Connection: USB 3.0 port

The problem: The system is able to detect the LimeSDR Mini device, but it fails to communicate properly when attempting to run tests or update the firmware/gateware.

  • When I run LimeUtil --find, the device is correctly identified and its information is displayed.
  • Similarly, when I use SDRplaySDRUtil --find (assuming you meant SDRplaySDRUtil or a similar SDR utility that also lists devices, if not, please remove this line), it also successfully shows the device connected.

However, when I try to perform operations like LimeUtil --update or LimeQuickTest, I encounter errors. Specifically, running LimeQuickTest yields the following output:

`LimeQuickTest
[ TESTING STARTED ]
->Start time: Wed May 28 03:39:02 2025 (Note: I’ve kept your timestamp for consistency, but you might want to update it to current time)
->LimeSuite version: 22.09.1-ge83c13b9

TransferPacket: Read failed (ret=0)
TransferPacket: Read failed (ret=0)
TransferPacket: Read failed (ret=0)
TransferPacket: Write failed (ret=0)
TransferPacket: Write failed (ret=0)
TransferPacket: Write failed (ret=0)
Board not supported
Failed to connect
libusb: warning [libusb_exit] device 2.4 still referenced
libusb: warning [libusb_exit] device 2.1 still referenced
libusb: warning [libusb_exit] application left some devices open`

2

when the failure happens check system log if it reports any USB related errors: “sudo dmesg”

What kind of computer you are using? During LimeQuickTest the RF chip is configured and data is being streamed, that increases the power consumption, if the USB port is not capable to supply enough power, the USB controller might brown out and not work properly until power cycled.

Also I suggest to update the LimeSuite version, 22.09 is quite old.