# GPS on Navigator?

**URL:** <https://discuss.bluerobotics.com/t/gps-on-navigator/15843>\
**Category:** Flight Controllers\
**Created:** [January 17, 2024, 6:28pm UTC](https://discuss.bluerobotics.com/t/gps-on-navigator/15843 "2024-01-17T18:28:07Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![FairweatherIT](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/fairweatherit/32/5545_2.png) [@FairweatherIT](https://discuss.bluerobotics.com/u/FairweatherIT)\
**Post date:** [January 17, 2024, 6:28pm UTC](https://discuss.bluerobotics.com/t/gps-on-navigator/15843/1 "2024-01-17T18:28:07Z")

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Greetings All,

I seem to have lost GPS connection on my Navigator in the BlueBoat after trying to update to 4.2.3 to 4.4.0, and then reverting back to 4.2.3. I have 2 BlueBoats and currently neither of them are getting any GPS location using the GPS units that came preinstalled with the BlueBoats. I have tried connecting them to the default Serial 5/I2C 6 port and also to the Serial 3 port, and no GPS info is being read by the boards. I have some old serial Here2 units that I tried as well, and these are not injecting GPS data either. Do you confirm that they were originally connected to Serial 3 or Serial 5, that these settings are correct?

 ![GPS](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/a/addee1fb9e24a02b3c60edc6f5fb7efe621e1907.png)  
 ![serial3](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/b/b92490713e0d253746e501bc8e9f60dd87bfadbc.jpeg)  
 ![serial5](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/7/72c2ac8d72e88f57b4dc4b2591f6567d9853851d.jpeg)

I even changed the serial 3 protocol to GPS and still nothing in QGC  
 ![image](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/5/539cbc22478542e5c41b39ab831fbfda0a9b22ee.png)

![image](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/c/c657a766362b3d87f880407fe0a1ca963f785d84.jpeg)

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<div class="post-metadata">

**Author:** ![FairweatherIT](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/fairweatherit/32/5545_2.png) [@FairweatherIT](https://discuss.bluerobotics.com/u/FairweatherIT)\
**Post date:** [January 17, 2024, 6:52pm UTC](https://discuss.bluerobotics.com/t/gps-on-navigator/15843/2 "2024-01-17T18:52:22Z")

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Personal blog here…lol…So when I had the GPS plugged into Serial 3, I got Magnetometer, AHRS, and pre-arm errors  
 ![image](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/e/e08853ba5e93dfbdbc22112493cff99d6a7af1d4.png)

When I connect back to Serial 5, these errors are gone (except for AHRS) but still no GPS data:  
 ![image](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/b/bd81835f8eb5d504a7d085bbbd13a3488e6b9265.png)

As a result I think that the GPS was plugged into Serial 5 from the factory…

This was confirmed…GPS into Serial 5 from the factory

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**Author:** ![tony-white](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/tony-white/32/13297_2.png) [@tony-white](https://discuss.bluerobotics.com/u/tony-white)\
**Post date:** [January 17, 2024, 7:47pm UTC](https://discuss.bluerobotics.com/t/gps-on-navigator/15843/3 "2024-01-17T19:47:13Z")

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Hi @FairweatherIT -  
~~We’ll continue to troubleshoot the GPS with you, but for those reading this…~~

~~**DO NOT UPDATE TO 4.4.0**~~  
Initial issues with 4.4.0 ArduRover have been resolved, it is ok to update!

Thanks!