ModalAI Forum

Hi @will-huang-oksi Are you willing to share some pics? Might be a cabling issue (GND loop or lack of a common GND), or some other intermittent connection causing your problems. It really is hard to debug without seeing the setup. Thanks! Vinny

@Alex-Kushleyev Thank you so much for the detailed explanation! I will keep you posted with the update shortly.

Hello @Nathan-Raras and @Nathan-Raras , I don't see any Qualcomm device with running "lsusb". I also have confirmed that the USB-C cable is able to access another VOXL device. So I have submitted the RMA [image: 1748968811422-d45c5737-8bf3-4c8b-9e7d-851acbfe82a8-image.png] Please let me know if any questions or suggestions. Thank you very much for supporting.

@Eric-Katzfey Very sorry for the late response and thank you for pointing out the mavlink-router approach, https://github.com/mavlink-router/mavlink-router. I will try it and keep you posted here. Thank you for answering my quesiton.

@Eric-Katzfey From other discussion, I add qshell gps start -d 7 -b 115200 and get the GPS now. Here is my setting and please let me know if any questions. Thank you for your precious time on this matter. AIRFRAME=MULTICOPTER GPS=AUTODETECT RC=CRSF_RAW ESC=VOXL_ESC POWER_MANAGER=VOXLPM AIRSPEED_SENSOR=NONE DISTANCE_SENSOR=NONE OSD=DISABLE DAEMON_MODE=ENABLE SENSOR_CAL=ACTUAL ARTIFACT_MODE=DISABLE EXTRA_STEPS=( qshell gps start -d 7 -b 115200 )