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Bad GPS lock with WIFI off.

My GPS stopped doing accurate readings when i flash roms with the ziggy gps fix. the only way that it gets accurate(within 20m) is with wifi on and connected, if its off it says accurate within 3700m. Thats not too accurate if i might say, anyone else having this problem/ found a fix for it?

Check the following thread:
http://forum.xda-developers.com/showthread.php?t=1025631

I've done that, and it knocks my gps off completely. Any clue why its attached to Google location services?
Sent from my ADR6400L using XDA App

Interesting, I attempted the same thing and I am unable to get a lock when I disable the Google Location Services.
I'm running on Das BAMF 1.3.2 with the kernel update 3a which includes gps fix/enhancement from Ziggy.
I've been testing how quick I get locks when using the Navigation and I am still seeing a considerable amount of time before it finds a GPS signal. I've also used GPS Status from the Market to reset and download GPS data but I haven't really seen a difference.

DRGilroy said:
Check the following thread:
http://forum.xda-developers.com/showthread.php?t=1025631
Click to expand...
Click to collapse
Used this method and Ziggy's GPS mod and I get a lock within seconds as opposed to 10 minutes. If I turn on Google Services it goes back to a 10 minute lock time so I think it has more to do w/ the Google Services rather than modifying the GPS Config through Root Explorer.
Edit: I will add that initially my phone will say "GPS Location is Currently Unavailable" and 2 seconds later it gets the GPS lock /shrug

Well mine stays searching when the Google location is off, never gets a signal. What is the stock gps server so I can switch it back?
Sent from my ADR6400L using XDA App

Well I just found that as long as WiFi is toggled on, the gps will lock on no matter if there's a connection or not. Tied into he WiFi somehow?
Sent from my ADR6400L using XDA App

Joanni said:
Well I just found that as long as WiFi is toggled on, the gps will lock on no matter if there's a connection or not. Tied into he WiFi somehow?
Sent from my ADR6400L using XDA App
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Click to collapse
That is odd that WiFi affects the GPS locking. I'm trying to find anything I can on this. "Searching for GPS..." in Navigation is annoying as heck.

I also had a sneaking suspicion that toggling wifi on and off caused gps lock issues, I was using another rom at the time, but for some reason, all of those problems ceased when I flashed TeslaCoil and completed the gps conf fix.
Not withstanding, gps should lock quickly using only stand alone, and right now, my gps works splendidly
Sent from my Thunderbolt using Tapatalk

Where can I find that gps conf fix at? I wanna give that a shot.
Sent from my ADR6400L using XDA App

Joanni said:
Where can I find that gps conf fix at? I wanna give that a shot.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
You can grab it here:
Improve GPS lock - credit Ziggy471
It edits the gps.conf so the NTP_SERVER=us.pool.ntp.org

That comes default on the roms I use tho. Still attached to WiFi switch. What's the closest lock you can get with your gps?
Sent from my ADR6400L using XDA App

i was having GPS issues with the last two bamf kernels. google maps seemed to lock onto my location after a few seconds or a minute, but other apps that tried to use the GPS would never lock on. i noticed when you go into google mapls, the GPS icon/animation appears on the status bar.
the GPS icon would never appear for other apps that tried to use GPS when using the bamf kernels.
with the stock TB kernel, all is well.

Ok, gps is definitely tied in to WiFi. Without WiFi on its 3400m away and with it on is within 20-50m. That only happened with the ziggy fix so maybe if anyone could show me the original settings for the stock gps server file I could change back and forth and test what the problem is.
Sent from my ADR6400L using XDA App

So I rewrote the gps.conf back to the original north-america setting and that fixed the problem. Any clue why ziggys rewrite of a word in that setting would mess it up so much? And how is it ppl are supposedly getting improvements with that, like what exactly?
Sent from my ADR6400L using XDA App

I don't know what the rhyme or reason would be for this gps issue, because it's so random, there is no pattern to this mess:
1. Got the phone, gps worked great.
2. Rooted phone, still worked great.
3. Flashed first rom, Virus to be exact, still worked great.
4. Several days later, with no rhyme or reason, I noticed that Cardio Trainer had not picked up location
5. Factory reset, problem still persisted, could not lock on to any birds, confirmed with gps test app.
6. Flashed CWR of stock rom post root, still not working.
7. Flashed RUU stock from fastboot, working again perfectly.
8. Have flashed 2 non stock roms since, BAMF 1.3.1 and first TeslaCoil (current) and gps still working perfectly
I can't think of what could have possibly caused this, but now that gps has been stable for about one week and I haven't been using wifi, over the weekend I'm going to toggle between wifi and 3g and see if it causes any issues.
Sent from my Thunderbolt using Tapatalk

I'll be trying the new Das BAMF 1.4 to see how it behaves. Wish me luck!

Joanni said:
Ok, gps is definitely tied in to WiFi. Without WiFi on its 3400m away and with it on is within 20-50m. That only happened with the ziggy fix so maybe if anyone could show me the original settings for the stock gps server file I could change back and forth and test what the problem is.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
Joanni, I'm having the exact same issue that you've been having. With Google services on, I get the wide area. If I turn it off, I get nothing. The only way I get a lock is with WiFi on. I'm currently running Virus ROM.
I know enough to be dangerous when it comes to digging into my phone. I generally just follow well polished instructions. How would one go about trying your fix?

GutterIsATool said:
Joanni, I'm having the exact same issue that you've been having. With Google services on, I get the wide area. If I turn it off, I get nothing. The only way I get a lock is with WiFi on. I'm currently running Virus ROM.
I know enough to be dangerous when it comes to digging into my phone. I generally just follow well polished instructions. How would one go about trying your fix?
Click to expand...
Click to collapse
Joanni just edited the gps.conf file to read NTP_SERVER=north-america.pool.ntp.org
That was the original setting. It has been said that changing the setting to us.pool.ntp.org has fixed peoples GPS locking issues but in my testing I found no benefit either way. What I have found, is that turning WiFi on will enable the GPS to have better accuracy in finding your location (20 meters to 50 meters in my case). This is exactly what the popup says, the first time you launch Google Maps.
If you wanted to check what your gps.conf file has set as the server, you can use Root Explorer and browse to /etc/gps.conf
There is also an app in the Market called FasterFix that will change the server to north-america.pool.ntp.org for you.

Gps issues

Has anyone else been having issues with there gps? I have it turned on and often times maps will only be like 1000m accurate. Sometimes it gets like 10m accurate, but it can take forever to get a fix. And sometimes it doesn't.
Sent from my ADR6400L using XDA App

are you rooted? if so, what ROM?

I am rooted, but on the stock ROM still. I have location services on all the time. Could that be messing with it?

do a search...there are threads that offer some "tips" to cure the GPS problem

Two quick things:
I did two quick things, both suggested elsewhere on this board, and now get gps lock within seconds.
First, I disabled the Google location services, but saw no appreciable difference in lock speed.
Second, I downloaded "GPS Status" app. Menu > Tools > Manage A-GPS state > select 'Reset', then follow the menus again and select 'Download'. This resolved the issue for me.
I am also running a custom ROM that changed the GPS setting to US from North America (again, as suggested elsewhere here), but that alone did not fix the problem for me.

Nobody's Hero said:
I did two quick things, both suggested elsewhere on this board, and now get gps lock within seconds.
First, I disabled the Google location services, but saw no appreciable difference in lock speed.
Second, I downloaded "GPS Status" app. Menu > Tools > Manage A-GPS state > select 'Reset', then follow the menus again and select 'Download'. This resolved the issue for me.
I am also running a custom ROM that changed the GPS setting to US from North America (again, as suggested elsewhere here), but that alone did not fix the problem for me.
Click to expand...
Click to collapse
+1 Same things fixed it for me....

I fixed mine. It needed to be flashed with a gps file to fix it. I think the file can be found on one of the forums. I'll try to post it tomorrow.
Sent from my rooted Thunderbolt, Das BAMF

What has helped for me is to change the servers back and forth in the instructions for the GPS fix in the dev section... ie the GPS.conf file... Switch it to the suggested server to fix... Reboot... Test your locks with GPS Test app... If still not working... Switch back to North America server, reboot, and test again. Right now I'm on Virus rom, which comes with the server in the GPS fix... But i was still having lock issues... Switched back to the North America server and rebooted... Now it locks quickly and with 6.6 feet accuracy.
Sent from my Thunderbolt using Tapatalk

Ok cool. Thanks guys. I'll try this out and see if it fixes it.
Sent from my ADR6400L using XDA App

Hi
I did what u say, but my gps still a bit off. But better than before....
thanks

You are welcome... Secondly, if your GPS is still flaky and you're running a 09 rom might want to flash a 06 rom and see if that helps. Best of luck...
Sent from my Thunderbolt using Tapatalk

Nobody's Hero said:
I did two quick things, both suggested elsewhere on this board, and now get gps lock within seconds.
First, I disabled the Google location services, but saw no appreciable difference in lock speed.
Second, I downloaded "GPS Status" app. Menu > Tools > Manage A-GPS state > select 'Reset', then follow the menus again and select 'Download'. This resolved the issue for me.
I am also running a custom ROM that changed the GPS setting to US from North America (again, as suggested elsewhere here), but that alone did not fix the problem for me.
Click to expand...
Click to collapse
This did it for me too. However, you MUST wait for the swirling circle to stop spinning and get a "lock on" which will then show your lat/lons. Be advised this can take several minutes! Be patient.

Problems with GPS

Hey guys, i had a question, and forgive me mod's if there is already a thread for this. Let me know and i'll post in there. But i was wondering if anyone else was having this problem. My shift's gps is not working, nor has it since i got it about a month ago. I've tried everything from downloading gps toolbox, to trying to to update the gpsone tab in qpst. Now, when i go to enter in the server ip address in gps, and the other settings, i write them to the phone, try turning on gps toolbox, standing in one place for 5 or so mins, nothing, not one damn satelite. I go back into qpst, and all my settings in gpsone tab are gone. Wtf? Anyone having this same problem?
Sent from my PG06100 using xda premium

When you flash a rom, do you first thing connect up to your wifi before you sign in to your google account?
Sent from my PG06100 using xda premium

FdxRider said:
When you flash a rom, do you first thing connect up to your wifi before you sign in to your google account?
Sent from my PG06100 using xda premium
Click to expand...
Click to collapse
Usually, yeah
Sent from my PG06100 using xda premium

In GPS settings turn on "Use wireless networks". Problem solved.

VICODAN said:
In GPS settings turn on "Use wireless networks". Problem solved.
Click to expand...
Click to collapse
I wish it was that easy. My phone picks up no satelite whatsoever

cbernardo13 said:
I wish it was that easy. My phone picks up no satelite whatsoever
Click to expand...
Click to collapse
I figured out GPS for the most part. Please read my earlier post:
VICODAN said:
2) After spending lots of time on GPS I found that getting the first lock is the most important thing and then it just works.
As of this time my opinion on GPS is that I am still unsure as to whether or not fasterfix changes anything but wireless assistance is definitely needed to get a good first lock and is used by some apps in acquiring location.
If you don't get more than 2 satellites in GPS status and it takes a long time to get those 2 satellites GPS hasn't gotten it's proper first lock yet.
This has nothing to do with having the GPS getting a lock in sense. It seems the GPS needs to use wireless assistance first to get the lock (contact sprint servers or something) and then it works pretty well. Still experimenting to figure out how exactly the GPS works and what the optimal settings are for it.
Click to expand...
Click to collapse
So yeah, try fasterfix and set to north america NTP Server and then in GPS status hit the menu button -> tools -> reset AGPS data and then menu tools -> download gps assistance data

VICODAN said:
I figured out GPS for the most part. Please read my earlier post:
So yeah, try fasterfix and set to north america NTP Server and then in GPS status hit the menu button -> tools -> reset AGPS data and then menu tools -> download gps assistance data
Click to expand...
Click to collapse
Hey, Vicodan, thanks buddy. I'll give that a shot a little later tonight and let you know. Thanks a lot
Sent from my bad ass Supreme Shift - gtalk [email protected]

cbernardo13 said:
Hey, Vicodan, thanks buddy. I'll give that a shot a little later tonight and let you know. Thanks a lot
Sent from my bad ass Supreme Shift - gtalk [email protected]
Click to expand...
Click to collapse
Haha no problem and good luck! Make sure you keep us updated! GPS has frustrated the heck out of me for the past month. That's the best I can come up with at this point. Need to have wireless assistance on and the first time you boot the phone on any rom you should be outside and get a good lock with a clear view of the sky. After that it's good to go.

VICODAN said:
Haha no problem and good luck! Make sure you keep us updated! GPS has frustrated the heck out of me for the past month. That's the best I can come up with at this point. Need to have wireless assistance on and the first time you boot the phone on any rom you should be outside and get a good lock with a clear view of the sky. After that it's good to go.
Click to expand...
Click to collapse
So, should I flash my rom again? and avoid setting up google account, then run the apps?

cbernardo13 said:
So, should I flash my rom again? and avoid setting up google account, then run the apps?
Click to expand...
Click to collapse
No just go to GPS settings, turn on use wireless networks, use faster fix, then open maps and try and get your location while outside and with a clear view of the sky. The GPS icon will stop flashing in the status bar when it has a lock. It will stay in the status bar as a solid icon, meaning that it is locked.
Then run GPS status and see how many satellites you get. You should get at least 4-5+ (up to 9) when GPS is working properly.

VICODAN said:
No just go to GPS settings, turn on use wireless networks, use faster fix, then open maps and try and get your location while outside and with a clear view of the sky. The GPS icon will stop flashing in the status bar when it has a lock. It will stay in the status bar as a solid icon, meaning that it is locked.
Then run GPS status and see how many satellites you get. You should get at least 4-5+ (up to 9) when GPS is working properly.
Click to expand...
Click to collapse
any idea how long it takes to get a lock? i've literally waited 5 to 10 minutes before

cbernardo13 said:
any idea how long it takes to get a lock? i've literally waited 5 to 10 minutes before
Click to expand...
Click to collapse
No longer than 30 seconds if you have good reception.

Spoke with OP via IRC, he is flashed on Metro PCS. Seems like he isn't flashed properly and also doesn't have MMS working. If anyone has any Metro PCS knowledge please feel free to chime in.

Weather Widget Not Showing Current Location...

Over the last week or so the Weather widget and app show my Current Location to be 'United Kingdom' rather than the city I am in.
I have tried refreshing many times, updated location on Google Maps and even reflashed my rom but still no luck. Has anyone had this problem and know a fix for it?
Many thanks.

Have you already clear data from Google Maps, Clock Widget, Weather, HTC weather sync provider and Weather Provider? After you delete all of these data, then try to update your location in google map by GPS and mobile data.

likuku said:
Have you already clear data from Google Maps, Clock Widget, Weather, HTC weather sync provider and Weather Provider? After you delete all of these data, then try to update your location in google map by GPS and mobile data.
Click to expand...
Click to collapse
Tried everything suggestd but still no luck. Added the clock widget from Beautiful Widgets to see if this would make any difference but this widget just says "Null" instead of "United Kingdom"

dr9722 said:
Over the last week or so the Weather widget and app show my Current Location to be 'United Kingdom' rather than the city I am in.
I have tried refreshing many times, updated location on Google Maps and even reflashed my rom but still no luck. Has anyone had this problem and know a fix for it?
Many thanks.
Click to expand...
Click to collapse
I have the same problem. Wrote about it some days ago. It shows only Finland. Installed beautiful widgets, changed weather provider to : google, now it's fine.
Sent from my HTC Sensation Z710e using Tapatalk

dr9722 said:
Tried everything suggestd but still no luck. Added the clock widget from Beautiful Widgets to see if this would make any difference but this widget just says "Null" instead of "United Kingdom"
Click to expand...
Click to collapse
Did Google map detect your location while using GPS and mobile data?

likuku said:
Did Google map detect your location while using GPS and mobile data?
Click to expand...
Click to collapse
Yes Google Maps shows my exact location with no problems (GPS and Mobile Data).
Ive done what invisiblebm has done and change the weather provider to Google in BW and now the widget is fine but it still shows UK on the weather lock screen

I'm having the same problem and I've done all the above steps too.
If you open the htc weather app and press more details online, it will load the web browser with correct location.
Therefore, I think the problem is kernel/rom related.
Btw, I'm running the Virtuous Rom with the 1.6 beta6 Brick kernel.

Since ARHD 4.1.7+Bricked v1.5 I have ever got the same problem too, but after I tried a solution from above reply that I have wrote.It's works fine for me.

abs_rio said:
I'm having the same problem and I've done all the above steps too.
If you open the htc weather app and press more details online, it will load the web browser with correct location.
Therefore, I think the problem is kernel/rom related.
Btw, I'm running the Virtuous Rom with the 1.6 beta6 Brick kernel.
Click to expand...
Click to collapse
I think you may be right. This only started happening to me when I moved from ARHD 3.6x to ARHD 4.1x. Is Virtuous Rom with Sense 3.5?
Im wondering if the problem is Sense 3.5 releated?

No it uses Sense 3.0
I'm going to try stock kernel and see if it makes any difference.

dr9722 said:
Yes Google Maps shows my exact location with no problems (GPS and Mobile Data).
Ive done what invisiblebm has done and change the weather provider to Google in BW and now the widget is fine but it still shows UK on the weather lock screen
Click to expand...
Click to collapse
Did you changed the weather provider from BW not from any HTC weather app?

abs_rio said:
No it uses Sense 3.0
I'm going to try stock kernel and see if it makes any difference.
Click to expand...
Click to collapse
Think it may be more Rom related that Kernel. Ive been using Bricked 1.5 for a while now and it always use to work.
Please report back though if you find stock fixes it. Does yours always show the country or does it sometimes report the correct city? Mine seems to be very intermittent...

Now this is really strange. I've tried this on both stock and bricked kernel.
I followed all the steps in post 2. I had to go outside to get gps signal in google maps, and it showed the correct location in weather widget.
However, when i go back inside, the location is back to United Kingdom. It seems as though a constant gps signal is required in the background.
This was never the case on the stock rom.

likuku said:
Did you changed the weather provider from BW not from any HTC weather app?
Click to expand...
Click to collapse
I only changed the weather provider in BW. As far as im aware you cannot change it for the HTC app.
abs_rio said:
Now this is really strange. I've tried this on both stock and bricked kernel.
I followed all the steps in post 2. I had to go outside to get gps signal in google maps, and it showed the correct location in weather widget.
However, when i go back inside, the location is back to United Kingdom. It seems as though a constant gps signal is required in the background.
This was never the case on the stock rom.
Click to expand...
Click to collapse
Something very weird is going on. Im at work at the moment and it's showing the correct location but I know as soon as I get home tonight it will change back to United Kingdom. Perhaps its a problem with Accuweather?
If it is rom related then I guess the only way to test this theory is to go back to stock and see if this makes any difference.

dr9722 said:
Im at work at the moment and it's showing the correct location but I know as soon as I get home tonight it will change back to United Kingdom.
Click to expand...
Click to collapse
Spoke to soon......just changed back to United Kingdom after a refresh!

Think I may be getting somewhere here.
With WiFi connected weather shows as United Kingdom - with WiFi disconnected weather shows correct location.
Can someone else test this to make sure...

I do have a nand backup of the stock rom which came with the phone. Contemplating whether to give it a try!
EDIT:
Just saw your post now. When you disconnect the WIFI is your data connection then turned on?

abs_rio said:
I do have a nand backup of the stock rom which came with the phone. Contemplating whether to give it a try!
EDIT:
Just saw your post now. When you disconnect the WIFI is your data connection then turned on?
Click to expand...
Click to collapse
Yes once WiFi is disconnected the mobile data comes back and correct location is shown.

Yea the same happens with me, with the data connection it reports correct location.

abs_rio said:
Yea the same happens with me, with the data connection it reports correct location.
Click to expand...
Click to collapse
How strange. I cant say I have ever noticed this before - Im sure I would have as I use WiFi all the time so I wonder if it is a recent bug.
Well at least we got to the bottom of it!

GPS won't lock anymore

It can get my location but never locks on. Its always like 100 meter range or so. Can't do turn by turn nav. And it can't really find me while driving. GPS lock apps never lock on but it does see satelittes. What can I do to get it to lock again. I see this on cm or touchwiz/stock ROMs. Please and thank you

bump. any advice?

mikexmayhem said:
bump. any advice?
Click to expand...
Click to collapse
I recommend getting from the play store GPS STATUS & TOOLBOX then after running the app go to the menu and select "Manage A-GPS state". It will wipe all cache gps data and download assistant data to speed up your gps lock. It has help my gps issues across various phones and ROMs. Well worth the price if you want to get the pro version.

mrrobc97 said:
I recommend getting from the play store GPS STATUS & TOOLBOX then after running the app go to the menu and select "Manage A-GPS state". It will wipe all cache gps data and download assistant data to speed up your gps lock. It has help my gps issues across various phones and ROMs. Well worth the price if you want to get the pro version.
Click to expand...
Click to collapse
ive tried every gps fix/lock app i could find. none of them work.
i am going to try flashing back to stock through odin and running a sensor test to make sure the hardware is even working correctly.

which rom are you on?
if you are on 7.1, there is a gps fix you will need to flash in recovery.