Develop Bugs

[Q] GPS not working CM 7.2

So my GPS is not working on my Gio with CM 7.2 RC-1 Patch 4. Doesn't show my location. Used 2 different programs to see if it works : Endomondo, Google Maps latest version.

Works fine here! Download GPS Test app and then connect GPS. See if it detects and locks satellites or not.

Downloaded GPS test app and it doesn't show anything ...

Jyrx said:
Downloaded GPS test app and it doesn't show anything ...
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Make sure you're connecting while your outside or at roof top; under open sky.
If you still don't see any activity in gps test app then download another app named FasterFix. Open it and select the server closet to you. You might get a quicker lock. Without that, gio takes a bit of time in connecting.

Okay thank you. I DL'd FasterFix. Got some readings on GPS Test. Still not showing my location on GMaps though. I'll let it search for half an hour or so under my window and then i'll see if works or not.

Jyrx said:
Okay thank you. I DL'd FasterFix. Got some readings on GPS Test. Still not showing my location on GMaps though. I'll let it search for half an hour or so under my window and then i'll see if works or not.
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You're welcome. GMaps will show you your location once satellite gets locked and detects you. I'd advice you to go outside for better signal reception. When satellites will get locked, you'll see bars on GPS Test turning yellow/orange and on right side it'll show you number of satellites locked below "in-use".

Ok, went for a walk outside and got ~12 satellites and it was using 6-7 of them. So I know now that my GPS works

GPS is suddenly EXCELLENT!

My GPS has all of sudden started working FLAWLESSLY. I have changed nothing on my phone in the last couple of weeks. While sitting sitting in my living room today, I decided to turned on my GPS as I do often in the same spot. The only difference, instead of picking up zero satellites, I picked up at least 5 and Google maps is working great.
Has anyone else noticed sudden improved GPS?? I hope this lasts...
Sent from my SPH-D710 using XDA App

I can't offer much historical performance, as I just got my Epic yesterday, but I was able to quickly get a gps lock at my house last night, and while driving today. I leave GPS on all the time.

I'm pretty sure this is due to me wearing my tin foil hat.
You're welcome.

Maybe this is a dumb question, but how do you check?

SRT300 said:
Maybe this is a dumb question, but how do you check?
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You can do this a few ways.
1) Make sure GPS is on, and go into Google Maps. See if it finds your location when you are indoors.
2) Make sure GPS is on, and download GPS test from the market. It will tell you how many satellites you are connecting to, and how strong the lock is. It also tells the accuracy of your location, in meters.

http://www.spaceweather.com/

GPS Status & Toolbox is another great free app from the market. Tells you how fast the GPS locks in seconds, number of satellites, longitude, latitude, compass bearing, etc. It will let you clear and download A-GPS data as well which one should do regularly.

tokuzumi said:
You can do this a few ways.
1) Make sure GPS is on, and go into Google Maps. See if it finds your location when you are indoors.
2) Make sure GPS is on, and download GPS test from the market. It will tell you how many satellites you are connecting to, and how strong the lock is. It also tells the accuracy of your location, in meters.
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These are the methods I use.
Sent from my SPH-D710 using XDA App

perhaps a neighbor cut down a tree which has been blocking the gps signal to your phone. haha.

Awesome!!!!
Mine says I'm at home too... Even though I'm currently at work about 10 miles away.
The GPS on this phone stinks!!!! But everything else is flawless.

I noticed a huge improvement a week or two before el29 went officially OTA. I was already running the leaked el29 modem/kernel mind you. Maybe Sammy/sprint changed something to play nice with the new release *shrugs*. Before this it would take awhile for GPS Status to lock on sats, now it usually locks in under a minute!
Sent from my SPH-D710 using XDA App

crzchn said:
http://www.spaceweather.com/
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^^this
The massive solar storm probably had a lot to do with it.

Not sure how the epic touch works, but I believe most phones do not use true GPS. The GPS module is usually assisted by the cell radio. Sprint probably improved cell coverage in your area.
Sent from my SPH-D710 using Tapatalk

Yes the phones do use the towers as a "rough location" while searching for satellites.

and if we have no tower signal.. we get no GPS
GPS should work.. cell signal or not. boooo A-GPS.

autoprime said:
and if we have no tower signal.. we get no GPS
GPS should work.. cell signal or not. boooo A-GPS.
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You should be able to uncheck the option to use the cell network to assist with GPS lock. I think it's under Settings, Location, or Security. It will then only use the GPS antenna to determine your location. It will probably take about a minute to get a lock, however.
I haven't tested this out, so it's all theory, but on paper, the theory should be sound.

My old Samsung phone had major gps issues but once I got a good lock and started using gps regularly it worked fine till I started trying out different roms. This phone gps seems to be working fine so far

I've never had a problem with GPS, but I live in an area with good cell coverage

[Q] is your gps working with the wifi location disabled?

For some reason and before I system update the tablet once more... Is your GPS working at all? so far I cannot lock to any satellites with GPS hardware enabled and google access turned on?! I do have the wifi location disabled do I need that enabled to make the built in GPS work?
I havent rebooted yet after initial boot and first system update and have the icon in top left corner saying there is another 55.1mb update...
everyone elses gps working without wifi location enabled?

i think enabling wifi allows gps to get a more accurate single by pinging the access points but it should still work with wifi disabled.

slyr114 said:
i think enabling wifi allows gps to get a more accurate single by pinging the access points but it should still work with wifi disabled.
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So far its still not working need verification from a new owner and gps test and gps status

skyhawk21 said:
So far its still not working need verification from a new owner and gps test and gps status
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Powered off tablet and back on, finally got a gps icon searching, didnt find satellites at my desk where my galaxy s3 and sero 7 pro tablet get 9-17 locks..
Went by window and got 3 satellites not locked. quit gps status tried gps test and the gps icon is gone again and gps wont come on although its enabled. What gives? defective nexus 7? anyone else with same or similar issues?

No issues, using gps test, it locked on within 15 seconds or so, 12 of 17 sats. indoors.

Got it working finally, took awhile... Had to follow the directions here:
http://productforums.google.com/forum/#!topic/maps/q24Cq4sQAtc
did not update maps from the stock one installed already.. went by window waiting 2 minutes and it finally downloaded AGPS data and finally saw 19 sats and locked on to 6-10 of them.. Now when I test with GPSTEST and GPS STATUS and MAPS everything is working like it should and it finds my location in about 15 seconds or so and its dead on 3-5 meters in MAPS and pointing correct direction for magnetometer sensor inside..
So if anyone else has issues try the instructions above!

skyhawk21 said:
Got it working finally, took awhile... Had to follow the directions here:
http://productforums.google.com/forum/#!topic/maps/q24Cq4sQAtc
did not update maps from the stock one installed already.. went by window waiting 2 minutes and it finally downloaded AGPS data and finally saw 19 sats and locked on to 6-10 of them.. Now when I test with GPSTEST and GPS STATUS and MAPS everything is working like it should and it finds my location in about 15 seconds or so and its dead on 3-5 meters in MAPS and pointing correct direction for magnetometer sensor inside..
So if anyone else has issues try the instructions above!
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Is there a notification showing the agps data was downloaded?

No notification and still having gps issues who else out there is?

skyhawk21 said:
No notification and still having gps issues who else out there is?
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I'm still having issues too. Followed the map uninstall and data clear steps in your linked post. Works for about 30 minutes then goes back to no signal.
Sent from my Nexus 7 using xda app-developers app

blckngldhwk said:
I'm still having issues too. Followed the map uninstall and data clear steps in your linked post. Works for about 30 minutes then goes back to no signal.
Sent from my Nexus 7 using xda app-developers app
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Try this
Knock on Wood, I think I got the gps problems nipped in the butt!
I had to reset the tablet from system settings after having both updates installed, when setting up tablet (initial boot) enable all location stuff except for the new android 4.3 wifi location while off option.. Also make sure to disable backup and restore options while doing the initial install.
Now so far GPS has been working steadily ever since first initial boot, no need to reset and power up again and after trying it for an hour all gps apps back and forth its still finding signal sometimes instant sometimes 20 seconds or so but no issues like before this time...
Working like it should now! I guess a hard reset after all updates was needed to reconfigure things!

skyhawk21 said:
So far its still not working need verification from a new owner and gps test and gps status
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Click to collapse
WiFi allows a quick load of the agps almanac data. Without it, it may take several minutes with a clear sky view to get a complete load of the satellite almanac once loaded, it should be good for a rapid fix for several days. If used often enough, it will keep the almanac current and always get a fix within seconds..

problem with GPS Offline

Hi all, I'm experiencing a lot of issues with my brand new phone using offline navigation.
It simply doesn't find any GPS signal. I tried 2 different apps for offline nav: Navmii and Here.
Using google maps under 4g signal it works but when I change country I use one of the 2 apps mentioned above (so that I don't pay roaming) and simply it doesn't find any satellite to connect.
Do you think it's an hardware problem?
I've also tried the application "GPS Test" and it's always on "NO FIX" status.
Usually my zone has a very good signal and I never had a problem with other GPS nav or smartphones, during 3 hours travel last week on an autoroute in north italy I never had signal.

joshthemajor said:
Hi all, I'm experiencing a lot of issues with my brand new phone using offline navigation.
It simply doesn't find any GPS signal. I tried 2 different apps for offline nav: Navmii and Here.
Using google maps under 4g signal it works but when I change country I use one of the 2 apps mentioned above (so that I don't pay roaming) and simply it doesn't find any satellite to connect.
Do you think it's an hardware problem?
I've also tried the application "GPS Test" and it's always on "NO FIX" status.
Usually my zone has a very good signal and I never had a problem with other GPS nav or smartphones, during 3 hours travel last week on an autoroute in north italy I never had signal.
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In settings > location is it set to high accuracy mode?

jollywhitefoot said:
In settings > location is it set to high accuracy mode?
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Yes it is!
I did 2 more tries few minutes ago using google maps offline (I set up the current location where I am now yesterday evening), and gmaps is able to locate me.
Why Here and Navmii are not able to use it? I've downloaded all the necessary maps on both the apps.
thanks a lot for your reply!

joshthemajor said:
Yes it is!
I did 2 more tries few minutes ago using google maps offline (I set up the current location where I am now yesterday evening), and gmaps is able to locate me.
Why Here and Navmii are not able to use it? I've downloaded all the necessary maps on both the apps.
thanks a lot for your reply!
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Sorry. I don't know those apps and that was my only idea. Maybe someone else can help you out.

jollywhitefoot said:
Sorry. I don't know those apps and that was my only idea. Maybe someone else can help you out.
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The strange thing is that even with "GPS test" application I was not able to get a stable signal...

I am running CM 12.1 on a Samsung Galaxy Note 8.0, and also can't get Navmii to see the GPS info. GPSstatus, gmap, osmand, and some nautical apps all work fine. I found that Navmii has had this problem before, about a year ago, so that is where to become suspicious. Lollipop 5.0 and then 5.1 broke a lot of things with their changes so this is not too surprising - just disappointing.

CarinaPDX said:
I am running CM 12.1 on a Samsung Galaxy Note 8.0, and also can't get Navmii to see the GPS info. GPSstatus, gmap, osmand, and some nautical apps all work fine. I found that Navmii has had this problem before, about a year ago, so that is where to become suspicious. Lollipop 5.0 and then 5.1 broke a lot of things with their changes so this is not too surprising - just disappointing.
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I solved it 2 days ago. Problem was my metal cover which was causing a shield around the device. All other functions were working fine but the GPS.
Thank you anyway (do not purchase metal cases)

I have an M9 phone, exactly the same problem.
only he does not have a case.

Waze GPS signal dropping.

Folks, hello!
I'm having this issue as shown in the video:
https://www.youtube.com/watch?v=OnHveA_vk08
The GPS signal in Waze (and only Waze) keeps floating, on and off, on and off... I can barely follow a route.
Curious that GPS signal is perfect, I don't have any problem with other apps like Google Maps, Here WeGo etc., only Waze.
Btw, already re-flashed ROM (Jaguar r14) and tried all apps like GPS status & toolbox, with no success.
Anyone else experiencing something like this?
Regards.

luws said:
The GPS signal in Waze (and only Waze)...
Curious that GPS signal is perfect, I don't have any problem with other apps like Google Maps, Here WeGo etc.
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May be it will be more effective to ask this question to Waze devs?!

I've tried waze forums, no luck