Database Users

Xperia GPS malfunction

Hi
I wonder if someone has this same problem and know how to solve it...
Most of the times that i try to use tomtom or wayfinder, the gps can't get a fix, it locks on to the satelites with no problem, but only for 1/2 seconds, then loses the position and after some 10s it regains the position again for another 1/2s and loses it again...
The only i way can get the gps to function properly again is by turning the phone off, remove the battery and turn it back on. Then it works, but if i turn off tomtom and try to use wayfinder the problem returns, and sometimes also happens after i close tomtom and try to use it again later...
It's driving me nuts i did a hard reset and after instaling my programs the problem remains. It seems google maps works ok, tho i'm not sure as the program doesn't have the option to see to how many satelites it's locked on.
any ideas? I doubt it's from the programs i install cause the ones i use i dw them all from this forum...
Thanks

its probably your location, the satellites might not be abundant enough. GPS works fine for me, I'm using IGO8.

no, it's not that, cause when it happens i remove the battery and reinsert and turn on the phone again, and after doing that procedure the gps will lock with some 6/7 satellites and will not fail as long as i don't turn off the first program i try to use the gps with ...
If i use tomtom after doing that battery removal procedure, it will work flawlessly, if i turn off tomtom and use it right after, it still works ok, but, if i turn off tomtom and after i use wayfinder, or if i only use tomtom again after some hours, it will have that problem (and vice-versa), it does find the same satellites and gets the coordinates (in tomtom they get those blue level bars), but only for very brief moments every 10/15s which ofc makes it impossible to correctly use the navigation program
If the gps was broken or something it wouldn't work ok after i removed the battery... i guess i'll try another hard reset

Try to disable A-GPS.

possible corrupt quick gps file , run quick gps and downoad new file.

Hi,
If you have used Advanced Config and enabled A-GPS, disable it as it will cause issues with TomTom and other GPS navigation software.
Later...

hehe got it working now, i had tried that before, but seems i was using an older version of advanced config or something, i downloaded a new version, disabled a-gps and now the gps is working fine thanks for the help

Re elusivo
Elusivo, could post how you fixed your problem? Because I currently have the same problem, but no Idea how to fix it. You said something about using a new configuration with and old one? Can you please explain?

Search for the program 'Advanced Config' on the forum and install it and then run it. Go to the GPS section and if A-GPS is enabled disable it. A-GPS uses the phone masts to triangulate and get your position which causes havoc when you are trying to use the internal GPS

Thanks for that......Problem solved

hello
I do have the saame issue as you with my gps. I install Igo, tomtom, gps htc tools and gps skinner and it is always 20/30sec to get a fix but it loses it 1 sec after.
If I disable A-Gps, it will increase the time to fix satellites or is it just used for quiick gps to download ephemerids???.
I think we have to ask Customer support because it is unacceptable for such an ewxpensive phone to have to disable functionalities such as A-gps to get it to work

pyrofrag said:
If I disable A-Gps, it will increase the time to fix satellites or is it just used for quiick gps to download ephemerids???
Click to expand...
Click to collapse
A-GPS uses Cell Towers to guess where you are. It is not (on these phones anyway) linked to Quick GPS which is a lot better at getting you a fix on a cold start.
As others have mentioned for some reason with A-GPS enabled TomTom doesn't like it, and I don't know of any real reason to use it.

@artesea : I don't get why you said "I don't know of any real reason to use it".
Are you talking about Tomtom or about A-GPS function ??
Because if you are speaking about Tomtom, I do have similar problem with all software using GPS.
And if you disable A-GPS function you are going to have to wait may be 3 minutes or more to get a fix instead of 40seconds so I think this is a real reason to use it...

No I'm talking about A-GPS.
Have you tried a cold start using Quick GPS, I can get a location in under 30 seconds.

So I disable A-GPS and I got fix within 30/40 seconds and I never lost it.
I just think it is absolutely unbearable to have to disable A-GPS to get your GPS working properly. This mobile phone cost 700€
I just would like to know what is protocol version from people who can have A-GPS working properly.
Rom version : 1.02.933.3
Radio version : 52.43.25.24W

So you've gone from 20/30 seconds to get a fix but then it drops, to 30/40 seconds to get a fix and it work and you STILL have a problem???
Maybe there is a reason why A-GPS is disabled by default!

No when I disable A-GPS I don't have problem any more.
I just remembered that I may have enable A-GPS through Advanced Config.
Hard reset do not change this, I though it was a registry editor value but apparently it is more than that.
Anyway it is not Xperia X1 issue but Advanced Config compatibility with Xperia X1

having problems with gps now too :/ later it was working brilliant (fix in no time), but now, most of the time i dont even see any satellite...
but sometimes, especially after reset, it shows like 5-6 satellites, but cant get fix, after some time sats just disappear :X tried disabling/enabling a-gps, with/without quick gps file downloaded, still the same... and no answer anywhere...
i guess i'll have to use my warranty and get it serviced :/
edit: today reflashed radio one more time (as yesterday after like 5 radio flashes, i ended on the original version, not the newest one) and suddenly gps is working hope it lasts...

Epic GPS issues

I have had my Epic since it was released and for the original build and the first OTA update, my GPS worked fine but I have been trying to use it lately and its not finding satellites. I am wondering if there is a fix for this or if anyone else has been seeing this issue? I know people had issues on earlier builds...

Under what conditions is your GPS not working? Indoors? Outdoors? Assisted GPS enabled or disabled?

djcslice said:
I have had my Epic since it was released and for the original build and the first OTA update, my GPS worked fine but I have been trying to use it lately and its not finding satellites. I am wondering if there is a fix for this or if anyone else has been seeing this issue? I know people had issues on earlier builds...
Click to expand...
Click to collapse
Search for "Cold Start" workaround in this forum or any other Sprint Epic forum.
All Epic phones have GPS bugs. The worst one, which you have just experienced, occurs after a period when the GPS has not been used lately, and the phone has not been recently rebooted. This bug has been isolated to these conditions, and obviously is caused by poor internal handling of time-sensitive GPS cache data. The workarounds force a temporary refresh of the cache.
BTW, even though all Epic's have GPS bugs, officially Sprint and Samsung are still in the denial phase. The bugs may not get fixed, so you should learn the workarounds,

You can also download "GPS Status" which lets you clear your cache data and redownload without having to gimp your GPS in cold start mode (which is horrid if you're off network).

boomerbubba said:
Search for "Cold Start" workaround in this forum or any other Sprint Epic forum.
Click to expand...
Click to collapse
I recommend this cold start mode as well. Using GPS status to force cache only works part of the time and gimps out your GPS unless your are turning GPS status on and off a dozen times a day each time you want to use location application, not to mention background uses of GPS.

I'm having the same issue, my GPS used to work fine before the latest update and now it takes 2-5mins to acquire a single when im trying to navigate.

narn17 said:
I'm having the same issue, my GPS used to work fine before the latest update and now it takes 2-5mins to acquire a single when im trying to navigate.
Click to expand...
Click to collapse
1)Make sure "use wireless networks" is off
2) use cold start GPS workaround

I was having trouble with the cold start workaround being an intermittent fix. I realized, however, it was usually when I left my house with WiFi turned on.
Apparently the GPS doesn't work (at least on mine) if I have WiFi on even if it's not being used (not connected to an AP). I do not have "use wireless networks" turned on, either.
That really struck me as odd because why would the GPS have anything at all to do with Wifi?

othan1 said:
I was having trouble with the cold start workaround being an intermittent fix. I realized, however, it was usually when I left my house with WiFi turned on.
Apparently the GPS doesn't work (at least on mine) if I have WiFi on even if it's not being used (not connected to an AP). I do not have "use wireless networks" turned on, either.
That really struck me as odd because why would the GPS have anything at all to do with Wifi?
Click to expand...
Click to collapse
I don't think it is the GPS receiver that has a problem. It is the network-based refreshing of the GPS cache, which is what the Cold Start setting triggers -- that is a problem. Having WiFi on inhibits the cellphone network data connection, and after you leave the house your WiFi does no good.
I and some others have found that this cache refresh not only needs WiFi off, but also 4G off. The refresh occurs smoothly using 3G data. (This 4G behavior makes little sense to me, and I think it is itself another symptom of the Epic's bug.)
I use the Cold Start workaround. To make it work effectively, before I start the GPS I make sure WiFi is off. When I am outside and need to initialize the GPS, I temporarily toggle 4G off. Then I open GPS Test, which turns the GPS radio on, forces a Cold Start refresh of the cache, and confirms that I get good satellite locks. Then I turn 4G on again before using an app such as Google Maps.

[Q] Problem GPS

Hey guys no one has had problems with the GPS fix?
Thanks

Nope, it's working great.
Why? Do you have a problem with it?

i tested the GPS as soon as i got it. caught my position within 15 seconds to 10 metres from its first ever try.

jusba64 said:
Hey guys no one has had problems with the GPS fix?
Thanks
Click to expand...
Click to collapse
don't forget to turn on your data connection at all times when using gps (locations or maps) because otherwise, you will not get a gps fix
despite HTC's thourough promotion of the Locations app with "preloaded maps", you still need a data connection to use the locations program. Utterly ridicoulous but heck, what can you do...

matthiasdeblaiser said:
don't forget to turn on your data connection at all times when using gps (locations or maps) because otherwise, you will not get a gps fix
despite HTC's thourough promotion of the Locations app with "preloaded maps", you still need a data connection to use the locations program. Utterly ridicoulous but heck, what can you do...
Click to expand...
Click to collapse
It's not impossible to use Locations without data, it will just take longer to get a GPS fix.

matthiasdeblaiser said:
don't forget to turn on your data connection at all times when using gps (locations or maps) because otherwise, you will not get a gps fix
despite HTC's thourough promotion of the Locations app with "preloaded maps", you still need a data connection to use the locations program. Utterly ridicoulous but heck, what can you do...
Click to expand...
Click to collapse
I'll have to disagree. I only need data connection to get the AGPS data which speeds up fix. After that the Locations app works fine, even with data turned off. Have you downloaded maps to your SD card?

Well...
I am not sure if I i have a problem, but this is my situation:
Both me and my girlfriend own a DHD.
I have installed copilot on both devices and when I turn on copilot and turn on gps (but have data connection disabled), her GPS fix takes about 30 seconders - 2 minutes, and mine may take > 15 minutes.
Surely 15 minutes should not be acceptable, even with data turned of ,right??

paulus_01 said:
Well...
I am not sure if I i have a problem, but this is my situation:
Both me and my girlfriend own a DHD.
I have installed copilot on both devices and when I turn on copilot and turn on gps (but have data connection disabled), her GPS fix takes about 30 seconders - 2 minutes, and mine may take > 15 minutes.
Surely 15 minutes should not be acceptable, even with data turned of ,right??
Click to expand...
Click to collapse
Try downloading Gps Status from the market. Use it to reset your AGPS data and download new one. See if it makes any difference.

olivierlee said:
Try downloading Gps Status from the market. Use it to reset your AGPS data and download new one. See if it makes any difference.
Click to expand...
Click to collapse
Thx, will have a look when I am at home and let you know if it helped.
It can improve the GPS fix, even if I do not turn on the data connection thereafter?

i had a problem with the lock. i went to the market place and got a normal gps satelite info applcaition. i then waitied for about 20 minutes for it to get a fix(first time) when i then opened HTC locations it worked properly and gets a fix really fast. i guess its just the first time.
SO if you are not getting a fix, WAIT a while for the first time maybe even 30 mins and then it will be fine.

BTW, my GPS fix issue has now been solved....do not know why, but at least it fixes within 1-2 mins or so...

Sometimes it's all about waiting. GPS locating can be very dodgy since it depends on too many factors and is initially a veeeery old technology.
I heard that soon tho EU will launch their own positioning sistem (Galileo - worth 3.4 billion;] ) that's accurate to the meter and since in some way will cooperate with NAVSTAR ( the US current GPS ) will hopefully have better "reception".
Until then - we wait and rely on bloody AGPS

Why is our Focus' GPS so slow???

Why is the Focus' gps so slow? I don't know what's wrong with my focus, I mean it just takes so long to get the coordinates of my location. I even have to go to a open sky area then wait for few minutes before it can successfully get my coordinates. Its just so annoying, this is a post ipad product, how come an ipad 1 can get my coordinates even inside the room without any difficulty?
Is this a hardware issue or just a firmware fix is due?

my focus gets a very quick lock about 90% of the time, every so often it will take a mintute or so to lock, but i've had this happen with pretty much every phone i've owned, so it seems about average to good for me...
the ipad1 (unless a 3g + wifi model) uses your network to locate you, which is why it's quite fast.

We have 2 Focuses, one AT&T and one Rogers. With both I get about the same time to get a fix, and that's slightly under a minute, in my location (several tall buildings near).
With what app do you check your GPS? I recommend GPS App

It's an AT&T. My ipad is a 3G+Wifi. It gets gps coordinates via gps chip and not A-gps. Most of the time the ipad gets coordinates very fast in span of 20-25 seconds, boom you know where you are in the map.
I am using the built in MAPS software to track my location. Does the software matters? I mean if the chip is really weak, what can the software do ?

jtphl said:
It's an AT&T. My ipad is a 3G+Wifi. It gets gps coordinates via gps chip and not A-gps. Most of the time the ipad gets coordinates very fast in span of 20-25 seconds, boom you know where you are in the map.
I am using the built in MAPS software to track my location. Does the software matters? I mean if the chip is really weak, what can the software do ?
Click to expand...
Click to collapse
Sometimes it does. To give you an example why: GPS without efemerides take several minutes to get a fix. GPS with efemerides take 20s to 1 min to get a fix. Efemerides are downloaded via software.
As for the app I found it to be good enough for testing the GPS part.

I can agree with you. Sometimes while driving if I take a different route than the one the phone provided for me, it will either fail to locate where I am for a few minutes or just fail completely.
I think it's time for a small update.

Is it just a minor driver issue? I hope so , otherwise, we have to live with it or change to another device.

jtphl said:
Is it just a minor driver issue? I hope so , otherwise, we have to live with it or change to another device.
Click to expand...
Click to collapse
Again, other people (including me) haven't experienced any issues.
In fact, it works great for me with Turn by Turn Navigation, even inside the car on the passenger seat (not near the windshield).

Try changing some GPS settings in the focus diagnosis app
Sent from my SGH-i917 using XDA Windows Phone 7 App

what are the settings in GPS I have to adjust to make it perform beyond expectations? Which specific diagnostic option I have to tweak?

Did the OP ever find a solution to this? I'm having some slow locks and the occasional non lock.
I know in the diagnostic app you can get to the GPS with*#1575# but I'm unsure of what data can possibly be changed.

I'm having the same issue on my Focus (Rogers). It never connects to sattelite and always uses aGPS. It's very annoying. I tried many different gps apps and get the same behavior - very innacurate. Garmin allways says "Can't connect to sattelite", gMaps always shows cell tower icon. My phone is unlocked using original Chevron method (not Chevron labs). I also tired to change settings in *#1575# and turn ON/OFF TLS and GLONASS but nothing helps. Should I try hard reset?

Ecstatic12 said:
I'm having the same issue on my Focus (Rogers). It never connects to sattelite and always uses aGPS. It's very annoying. I tried many different gps apps and get the same behavior - very innacurate. Garmin allways says "Can't connect to sattelite", gMaps always shows cell tower icon. My phone is unlocked using original Chevron method (not Chevron labs). I also tired to change settings in *#1575# and turn ON/OFF TLS and GLONASS but nothing helps. Should I try hard reset?
Click to expand...
Click to collapse
I did a hard reset last night and it seems to have cleared up. I also installed this app, have to click the link in the post, searching for it didnt work.http://www.wpcentral.com/new-samsung-high-fidelity-position-enhances-gps-modifies-settings
Not sure if it's a placebo or not, but it seems to be working better.

is Focus GPS native chip or just a-gps?

Coelho_rj said:
is Focus GPS native chip or just a-gps?
Click to expand...
Click to collapse
Assisted GPS, which includes standard GPS in Standalone mode, so it's better than any native GPS.

after my hard reset the GPS locked much quicker for about a week, then it started acting up again.
my new solution seems to be much easier than a hard reset. Just briefly switch to airplane mode then re-enable your data and open maps up again. Been working great for me.

Faster solution that's been working for me. Turn on and off location services. My phone never locks without this, which is sorely annoying.

I had this problem on 7392 rom. After updating to mango 7720 and 8107, I get fix in 3 to 7 seconds in my room Tested with gpsinfo, it's real satellite data, not agps. I have also installed high fidelity position settings app. Don't know if it's helping.
Sent from my SGH-i917. using Board Express

No gps with Kyrillos v10 on i5800

I have flashed Kyrillos V10, but my gps didnt work My Gps see allot of satelites and connect also to them but it did not get a fix. Maybe because i put maps with data back with titanium backup. I dont know...
I know now that i get it fixed now
I install a app called GPS Status than i go to tools and A-GPS- status... , than klik Reset. That did the job for my GPS.
I hope it works for you to
Srry for my pour english

GPS issue if fixed with Kyrillos v10.1. I tested it myself yesterday.

Synchro77 said:
GPS issue if fixed with Kyrillos v10.1. I tested it myself yesterday.
Click to expand...
Click to collapse
what kernel do you use?

I use CM7_kernel_OC_1.4. I believe it came with the latest ROM. Yes, GPS works but it takes a while. When I had Kyrillos v9.5 installed the GPS lock was faster though.

Hello! I have the same problem. But I found a strange thing.
In the past when I used Froyo, GPS found my location with several satellites in use (more then 3). But now I see that it may found my location without any satellites in use. It's seems that something is broken because it's needed minimum 3 satellites to find the location.

But now I see that it may found my location without any satellites in use.
Click to expand...
Click to collapse
If GPS finds your location without any satellites the only explenation is that the phone uses internet connection to find your location. Maybe that is the case.

first_family said:
Hello! I have the same problem. But I found a strange thing.
In the past when I used Froyo, GPS found my location with several satellites in use (more then 3). But now I see that it may found my location without any satellites in use. It's seems that something is broken because it's needed minimum 3 satellites to find the location.
Click to expand...
Click to collapse
When your wifi is on (even if you're not connected to any network) your location can be determined to about 50m about
the networks near your location. At least in Germany. I think it's maybe through the google cars which also check the wifi networks when they took pictures for street view.
Doekus said:
I have flashed Kyrillos V10, but my gps didnt work My Gps see allot of satelites and connect also to them but it did not get a fix. Maybe because i put maps with data back with titanium backup. I dont know...
I know now that i get it fixed now
I install a app called GPS Status than i go to tools and A-GPS- status... , than klik Reset. That did the job for my GPS.
I hope it works for you to
Srry for my pour english
Click to expand...
Click to collapse
Thank you very much. GPS status helped me. Now I can get a fix with cold start in around 30s and with GPS on in just a view seconds. Great!
Sent from my GT-I5800 using XDA

Michael1101 said:
Now I can get a fix with cold start in around 30s and with GPS on in just a view seconds.
Click to expand...
Click to collapse
Are you in flight-mode while using GPS, connected to Wifi or to mobile networks (2G,3G)?
I use GPS mostly in flight-mode, and it still takes some minutes (5-10) to get a fix. Even with updated AGPS-data, but with no internet connection (afterwards, waiting for the fix).
Maybe you can show me your gps.conf from the /etc/ folder?
I think it's maybe through the google cars which also check the wifi networks when they took pictures for street view.
Click to expand...
Click to collapse
Nope... Here is a link how it works. (It's the same like in Google Maps: the my-location-button)
https://support.google.com/maps/bin/answer.py?hl=en&answer=153807