Maintaining a stable GPS signal is essential for Yarbo to function efficiently. While Yarbo’s advanced system ensures smooth operation, several factors can affect its GPS performance. This guide covers common causes of GPS signal loss and how to troubleshoot them effectively.
GPS Icon Colors and Their Meanings
- Green Icon: GPS is online and connected – Yarbo is functioning properly.
- Yellow Icon: Medium GPS signal – Yarbo is still operational, but performance may be affected.
- Red/Gray Icon: No GPS signal – Yarbo cannot receive a GPS signal and will not operate correctly.
Common Causes and Troubleshooting Solutions
1. No Halow or 4G Connection for Data Center and Yarbo Rover
Cause: The Data Center and Yarbo rover need Halow or 4G connectivity for reliable GPS operation.
Solution:
- Check the network settings for both the Data Center and Yarbo rover.
- If the problem persists, contact Yarbo Support for further assistance.
2. Satellite Signals Blocked by Obstructions
Cause: Objects like buildings, trees, or other obstacles can block satellite signals from reaching the Data Center and Yarbo rover antennas.
Solution:
- Move the Data Center or reposition the rover to an area with a clearer view of the sky.
- Swap the antennas on the left and right sides of the Yarbo rover to optimize signal reception.
- If the issue continues, contact Yarbo Support.
3. Loose Connections at the Data Center
Cause: The connections between cables and the Data Center may not be secure.
Solution:
- Check all cables and ensure the connections to the Data Center are tight and secure.
- If the issue remains unresolved, contact Yarbo Support for further guidance.
4. Technical Issue with the Data Center
Cause: An internal issue or error may occur in the Data Center.
Solution:
- Check the indicator lights on the Data Center for any error messages.
- If the indicator is in red, try to replug POE port and contact Yarbo Support immediately for assistance.
5. Components Malfunction in the Yarbo Device
Cause: Internal components of Yarbo may not be functioning properly, disrupting GPS signals.
Solution:
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Inspect all connections and cables between Yarbo and the Data Center to ensure they are undamaged and properly connected.
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Verify that all antennas are properly installed and tightened.
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Reset Yarbo and reconfigure default settings if necessary.
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If the issue persists, contact Yarbo Support for further help.
6. Incorrect Adjust Angle on the Diagnosis Page
Cause: The diagnosis page displays an incorrect angle value (e.g., -1 or something other than 1), indicating a calibration issue.
Solution:
- Drive Yarbo to an open area for 3–5 minutes to recalibrate the system by using odometry calibration feature in Yarbo APP.
- Reset the “mode base” process through the app to ensure proper operation.
- Contact Yarbo Support if the problem remains unresolved.
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For the number six item above, consider including some screenshots for the values and processes recommended.
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#6 Support ticket submitted. Everything has been normal until today. Everything in this list has been completed. Multiple Power downs, resets, DC, Core. Moving around. Still sitting on charging pad. A few hours here, and a few there. Back to the pad. All are know to have great GPS every time. 
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Check your RTK antennas. Maybe swap left to right and right to left. Assuming that you’ve already done a full power down for 5 mins in the data center and pulled the battery cable on the rover. And powered up DC first. Also I’m seeing connection status 3 on your DC connection. That usually means no internet connection. If it flips to 2 periodically, then it’s fine. I don’t see the GNGGA in the screenshot so I can’t tell if your DC looks ok or not. But if it has a long string of numbers there it’s probably ok. Looks like the rover does not.
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DC is good. I cut due to the location. 
I did the swap on RTK. Got the new ones from our buddy you hooked me up with. 3-7 days on the others to come in. But I can Power both down again over night if needed. Then start with DC first in the morning. Or again tonight to see if anything changes. DC is solid green outside. Ticket #100563 was put in for Support to check. I didn’t know if anything changed, or maybe a patch or bug fix might be needed if any other folks had any problems with the new update.
Ok good! And you already have a ticket and @Yarbo-Forum can have a look at it. You only need to power it down for 5 mins. For them to remote diagnose it, it needs to be on. Assuming it has connection to the network at all.
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I’m sorry to hear about the issue. I’ll follow up on your support ticket to ensure it’s resolved smoothly. Thank you for your patience and understanding!
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I did try again. But same issue. We tried. It’s back on again, so they can do a remote to diagnose it. Checked the router settings too. Everything is normal, and working as it was before this happened. Just when I got what I needed to get back at it. Down again. Always tomorrow I guess. Glad to see they just followed up, they will check on support ticket.
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For the last 3 days I have had the same issue. It all started right after I updated to new application on the phone. No GPS satellites at all. Yesterday finally Yarbo managed to update itself to the newest firmware as well. Still no GPS.
Done all the possible things excluding laying Taro cards and playing with moon cristals 
Have support ticket opened 100135. After explaining all what I had done I did get the message back that please restart the core and also the application. I thought it was a joke, but calendar is not somehow showing 1 of april today…
Good to know now that I’m not the only one having this problem. Most likely then it’s not hardware related and something (again) went wrong with the firmware.
Fingers crossed I will get the new reply from Yarbo and it’s not something like make a picture/video and stand on one leg while doing it and hopefully this helps getting back the GPS lock.
its really hard not to be sarcastic
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You have to cross your fingers and your eyes while standing on one leg to get the full effect.
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Those are the diagnostics screenshots
Your rover GNGGA is blank and no satellites are detected. This could indicate an antenna issue. You could try swapping your antennas from left to right and right to left and see if there is a change. BUT, I would try power cycling everything a couple of times. Pull power to both DC and Rover for 5 mins to 30 mins. Power up DC, then power up rover. Bounce the DC a few times and reboot the rover a few times and see if it clears up on its own. If not, you can try swapping the antennas. Document all of your attempts in your ticket so that they can move on to the next tier on the troubleshooting tree and eliminate some of the back and forth.
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Just got an email from support.
So I checked, as they are working on the back end I guess. So as of right now. I have Intermediate GPS, 27 satellites but now DATA Latency is bouncing all around not staying stable at 1. L2 is 14 Status is 4, Adjust angle back to 1 now. Connection still at 3 But new one, getting a battery overheating error. 100% charge. Sitting on the pad. Hope they find out what’s going on soon.
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Is your battery temp over 50? Or over 45?
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Hmm. Maybe you just need to clear the error with the app controller. Must be a bug. If clearing the error doesn’t work, try a reboot.
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I did a reset/reboot. Error is gone now. But the DATA Latency is bouncing all around not staying stable at 1. But, have Intermediate GPS still. This was like it was when I first got my Yarbo. Support thought it was my router if you remember. But checked it from there end, said my thing was rare. But whatever they did seemed to resolve the problem. Must be a bug.
I recall, and as I recall unplugging the LAN port on the POE injector stabilized the latency, no? You could try that again and see if your GPS and latency stabilizes in offline mode.
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10-4 will do a unplug the LAN port on the POE injector to see if it will stabilize the latency. The only thing they asked was to leave it online while they checked it from their side.
