I am experiencing an issue with my Here3+ GNSS module where it fails to obtain a fix despite being outdoors with a clear view of the sky. I have already ensured that my firmware is up to date, and I have taken several troubleshooting steps, including:
Verified all connections are secure and undamaged.
Confirmed the GPS configuration in the flight controller software (Mission Planner/QGroundControl) is correct.
Tried connecting the GPS module to a different port on the flight controller.
Ensured there are no sources of RF interference nearby.
Performed a fresh compass calibration.
Verified that the GPS antenna is not damaged and properly connected.
Despite these efforts, the GPS module still does not obtain a fix.
Here are some additional details:
Model: Here3+
Flight Controller: [cube orange plus with arducopter 4.5.4 firmware]
Thank you in advance for your help!
Looks normal.
You have never got satellites on this module or was it working before?
If never, you can try soldering a wire from RF out of ublox to antenna directly and check. If it works then, some components on RF line have bad soldering.
i checked in the website that you have shared. so which version and file i have to download? gnss peripheral file in v1.14 for here4 or which file in v1.11 for here3+.
and in u-center i connected by network connection with the address tcp://127.0.0.1:500. i think it was connected successfully but i can’t see much info in monitor.
I’m about to lose it! This Here3+ GNSS module has been playing hide and seek with me for almost a month now. I’m at the point where I’m considering starting a support group for people haunted by GPS modules.
I also have face the same problem similar to yours.
What i have done is, make sure you are in correct mode, either CAN or I2C. Assemble your gps, get it connected to the pixhawk. This is the trick : Put your pixhawk and gps outside the lab, and make sure the GPS have clear sky. Connect the battery. Let it there for 5-10 minutes, so that it can get gps reception. And it is solved.
