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GPS Issues?
- Thread starter musqayan
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Still having issues. Took trip to grocery store and location was wandering all over the place. Will try the disabling cellular tip and see if ride home is more accurate.
Edit: it was doing well on the ride home for about half the trip. Sometime the little arrow was on and sometimes it was just a blue circle, but it stayed on the road. About halfway home, it simply lost its place. When I had an opportunity I checked the GPS diagnostic app and I was getting no satellite signal at all. When I got home and out of the car, the satellite signal reacquired and I had about 25% signal. My next step is to try to do the restore using the IPSW file and see if that improves things.
Edit: it was doing well on the ride home for about half the trip. Sometime the little arrow was on and sometimes it was just a blue circle, but it stayed on the road. About halfway home, it simply lost its place. When I had an opportunity I checked the GPS diagnostic app and I was getting no satellite signal at all. When I got home and out of the car, the satellite signal reacquired and I had about 25% signal. My next step is to try to do the restore using the IPSW file and see if that improves things.
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You bought GPS Diagnostic, right? What accuracy are you seeing on that when driving?
See the edited post just above yours (I added that info before I saw your question).
My car (2017 GMC Denali) always seems to have caused GPS issues for my phone. Makes me wonder if that’s part of the problem: the phone is having trouble with a weak signal, compounded by the vehicle’s own effective radiation shielding.
What surprises me more than anything is that CarPlay isn't making use of the vehicles own GPS hardware. That's a recent and high end vehicle so I would absolutely expect it to have a GPS unit present, whether or not Nav was actually optioned.Assuming that it does (and it is an assumption and perhaps one too far) it would make me wonder whether CarPlay is fully/correctly implemented in it.
I have the 2017 2500 Denali and have zero GPS issues with CarPlay. They do have their own internal nav as well, but the CarPlay is much nicer imo.
Interesting. Thanks for the data point.
I wasn’t referring to the Nav specifically above though. Just that it’s more and more common in recent, and especially in higher end cars, to put the GPS equipment in the car, regardless of whether Nav has been optioned. When that is the case, and the car’s CarPlay implementation allows it, iOS can use that GPS receiver, which is generally more accurate than the one in the phone.
You’re asking for a much harder implementation. You have to factor in the communication between the Car’s GPS and feeding that data to the iPhone. CarPlay has full control and the screen is just that, a screen. If Apple allowed the car’s gps to control the signal, they will have to handle an external vendor’s GPS hardware, whereas CarPlay can just rely on the phone’s hardware (known hardware).
I’m not asking for it. That’s how it works today. It’s part of the CarPlay protocol. The car also passes more basic information like “started”, “stopped”, “moving” alongside the GPS co-ordinates. I posted a link to some info earlier in the thread.
Yes, my Denali has onboard nav and (obviously) GPS. As I mentioned, I’ve had trouble with Apple navigation and CarPlay since I’ve had this vehicle, so you may be on to something.
Is the vehicle firmware user updatable at all? (though if it is, and it’s anything like Ford it’s a 50/50 chance of making it worse, not better!)
GPS tracked my 14 mile cycle ride to work this morning via Strava with no wonky data, very fast GPS lock too.
Could that of been buildings blocking the the GPS???
When I get into London where i work I always tend to get a bit of interference due to bigger buildings but not too much, just slightly off route.
I believe the shielding in windscreens are the reason why some cars built in gps receiver is used, when you hook up carplay. So checking the quality of the gps signal should always be done outside of your car.
If you are still experiencing gps issues on beta 3, try resetting all network settings. Who knows, something bad may be lurking there and this is by far the easiest way to clear it out
If you are still experiencing gps issues on beta 3, try resetting all network settings. Who knows, something bad may be lurking there and this is by far the easiest way to clear it out
My model is unfortunately not owner updatable. I may have an opportunity to have a dealer look at it this week so I may do that.
Only problem is I took the same route there and back. (There was right on, coming back I was off)
loads and loads of factors, one of them being that the GPS satellites are orbiting, so no surprise the result can differ depending on the moment you were at that location
I reinstalled beta 3 from an IPSW file. I seem to be getting a better GPS signal (based on GPS Diagnostics), even getting into the green indoors on occasion.
Here’s the app if anyone wants it.
https://itunes.apple.com/us/app/gps-diagnostic-satellite-test/id1020967894?mt=8 /[URL]
Here’s the app if anyone wants it.
https://itunes.apple.com/us/app/gps-diagnostic-satellite-test/id1020967894?mt=8 /[URL]
