Asset Tracker V2 No GPS Fix Troubleshooting

Troubleshooting
1

Hello,

I am trying to test out the Asset Tracker V2. I am not able to get fix using internal or external antenna. I have tried with multiple libraries from AssetTrackerRK,Particle Asset Tracker & also using TinyGPS libraries. But none of them works on this unit. I am not able to get GPS fix at all.

I had kept GPS under open sky overnight with different configurations and antennas but none are working. Tested the same firmware with my old Asset Tracker V1 kit and it works fine and in fact I get GPS fix within less than a min.

Has anyone ran into this type of situation, or can this be hardware issue?

2

Run the 7_DataDump example from AssetTrackerRK and check the output. If zero satellite are able to obtain a fix, then it’s probably a hardware defect. You can either paste the output here or include it in a support ticket.

3

@rickkas7 Thank you. I have checked the output from the example 7 datadump and also used your gpsdump.bin and same results from both. I verified that same file with v1 tracker and i was able to see gps data.

Below is the log from gpsdump.

$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
charsProcessed=748005 sentencesWithFix=0 failedChecksum=0 passedChecksum=26590
no location

$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
charsProcessed=749130 sentencesWithFix=0 failedChecksum=0 passedChecksum=26630
no location

$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
charsProcessed=750255 sentencesWithFix=0 failedChecksum=0 passedChecksum=26670
no location

$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
charsProcessed=751380 sentencesWithFix=0 failedChecksum=0 passedChecksum=26710
no location

$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
charsProcessed=752505 sentencesWithFix=0 failedChecksum=0 passedChecksum=26750
no location

$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
charsProcessed=753630 sentencesWithFix=0 failedChecksum=0 passedChecksum=26790
no location

$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
charsProcessed=754755 sentencesWithFix=0 failedChecksum=0 passedChecksum=26830
no location

$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
$GLGSV,1,1,0065
$GNGLL,V,N7A
$GNRMC,V,N4D
$GNVTG,N2E
$GNGGA,0,00,99.99,56
$GNGSA,A,1,99.99,99.99,99.992E
$GNGSA,A,1,99.99,99.99,99.992E
$GPGSV,1,1,0079
charsProcessed=755880 sentencesWithFix=0 failedChecksum=0 passedChecksum=26870
no location
\

1 Like
4

Yes, it’s not able to see anything. Even obstructed it will typically see at least one satellite even if it can’t get a full fix, so go ahead and submit a support request at support.particle.io and include a link to this post and we can get you a replacement.

1 Like
5

Thank you Rick. Will do so.

1 Like
6

Hi vsmonk
I have exactly the same problem. Could you fix it? Is it a hardware defect or some mischief in the libraries/software/otherstuff?
Thanks

7

Hello renegm,

After some debugging as mentioned by Particle support we came to a conclusion that there was fault with hardware. Please contact particle support, they would be able to help you more. In my case I got a replacement which worked with the same code.