So this is the first GPS device I'm using so bear with me.
Google Maps seems to get my location even without GPS. Cell network triangulation I guess. It says accuracy upto 100m.
Then if I switch GPS on, then I see the blinking GPS icon at the top. Does this mean GPS is locked? Or does it mean it's in the process of locking? It never seems to stop blinking. Anyway, I get around 'accuracy upto 70m' with GPS, and it never seems to update it's position if I'm say, going in my car.
Maybe I'm using it wrong, I dunno. Any help will be appreciated.
A blinking GPS icon signifies that GPS is not locked on. Try turning on GPS and then going outside. GPS lock insides can be a problem.
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Hmm I can't ever seem to get a gps lock.
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Try using navigation and driving around for a bit
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I also had problems with the GPS and i discovered that when I could not do a "lock" the phone has to be restarted.
After that i was able to do a "lock " quickly.
(using google translator, patience please )
I use my phone to track me while I run, and I have been very disappointed with the GPS accuracy of this phone. When I look back at the maps (I use Google My Tracks app), there are obvious mistakes and inaccuracies. Does anyone have any idea if there is specific information regarding the specs of the GPS used in the phone. There are settings I can tweak in the app I am using regarding GPS accuracy, but I need the specs of the phone's GPS to make sure I use the correct settings.
Thanks.
I use MyTracks for my job without issue and is about as accurate as it can get. You're never gonna have pin point accuracy with any GPS phone. It will get you within around 3 meters.
My advice is to make sure the GPS icon in the status bar is on and not blinking. If its not there it's using wireless to best guess your location. I've always had problems with GPS not activating properly with any ROM. Turning GPS off and on or even rebooting is the quick fix.
A good app to test GPS is called "GPS Fix" and its free in the Market.
Sent from my MB870 using Tapatalk
Thanks dude...
I went out today and it was better than in days past, so perhaps there was some anomaly the last time. I did turn location by wireless networks off with the phone, and I bet that was the biggest difference. I also changed the polling frequency to automatically adjust for best accurracy.
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I am using LG Net (P690) and have tried a few available roms but have been facing a constant problem in all of them, that is GPS won't work at all.
Tried GPS Status & Toolbox to clear the a-gps but nothing. It wont even detect the satellites.
Anyone with similar troubles..??
I am on CM7.2.3
First GPS fix may take an awful lot of time even with a-gps and good visibility if your phone does not have well synchronized time.
In case your phone is rooted, you might try fasterfix (available for free from the market) which enables you select physically close NTP server. For me, it helped getting the fix from sometimes more than 10 minutes to a couple of seconds.
thonzak said:
First GPS fix may take an awful lot of time even with a-gps and good visibility if your phone does not have well synchronized time.
In case your phone is rooted, you might try fasterfix (available for free from the market) which enables you select physically close NTP server. For me, it helped getting the fix from sometimes more than 10 minutes to a couple of seconds.
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Click to collapse
Thanx Thonzak, will try that..
didn't work...can it be a hardware problem.. ?how can I determine that its a hardware problem or software..??
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hi guys i have been testing my galaxy s3's GPS. i am using osmand app as my GPS app. sadly the app could not find any satellites and pin point my current location. even if i leave my S3's GPS active for a more than 5 minutes it could not get any satellites even if i am standing on a open area.
what should i do? how can i reset my GPS?
thanks in advance
Turn mobile data/wifi on and then try to use GPS. If GPS receiver doesn't have fresh AGPS data, cold start will take from 10 minutes to infinity.
YaDr said:
Turn mobile data/wifi on and then try to use GPS. If GPS receiver doesn't have fresh AGPS data, cold start will take from 10 minutes to infinity.
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Click to collapse
Agree with you. Turn mobile data on. GPS or Glonass receiver use mobile network to fix the signal. When your position is done, you can turn off mobile data.
oh do you really need the mobile data active? was it possible to get your exact location without the use of wifi or mobile data? just your GPS? because osmand can download the maps offline then just use the GPs data to pin point your location. have you guys tried using the osmand app?
thanks
GPS receiver needs to download some (4-5 kilobytes) of data from server. This is called A-GPS, Assisted GPS. Without it, GPS still will lock onto satellites, but it will be 20-30 minutes instead of 2-3 seconds.
bossrobo said:
oh do you really need the mobile data active? was it possible to get your exact location without the use of wifi or mobile data? just your GPS? because osmand can download the maps offline then just use the GPs data to pin point your location. have you guys tried using the osmand app?
thanks
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Click to collapse
U only need data/wifi for first location fix and to dl. extra GPS data.when your location is found,u can turn of data/wifi and never use it again if u got downloaded maps.
Its just to get faster location fix on first GPS fix
I just tested my s3's GPS today in open air and got a lock within two seconds. phone locked 15 satellites. My phone is running completely stock rom and kernel.
So as others suggested, you should turn wifi or mobile data on so that A-GPS could work.
If you are worried about your app downloading more data and cost you money eventually then you may try app named "GPS Test". Its a very simple app and gives you some key info like satellites in view and locked to plus accuracy etc. It doesn't download any maps etc. Once you get locked, you can close the app and open your desired maps app.
samydroid said:
I just tested my s3's GPS today in open air and got a lock within two seconds. phone locked 15 satellites. My phone is running completely stock rom and kernel.
So as others suggested, you should turn wifi or mobile data on so that A-GPS could work.
If you are worried about your app downloading more data and cost you money eventually then you may try app named "GPS Test". Its a very simple app and gives you some key info like satellites in view and locked to plus accuracy etc. It doesn't download any maps etc. Once you get locked, you can close the app and open your desired maps app.
Click to expand...
Click to collapse
hey thanks, because last night i was testing my s3's GPS if i have wifi connection my S3 can fix my current location around 2~3 seconds. i also saw my cousin's s3 and he also gets a fix location within 2~3 seconds. but i am not sure if his mobile data is active. that i would like to ask him again.
hehe thanks guys
Hi there,
I also have an issue with my GPS. Navigation is stuck at Searching for GPS.
Also when I run GPS test, it does not see any Satellites. I have my mobile data and WIFI on, and also tried to update the agps data with fastergps.
I have found different threads suggesting to uninstall maps but that did not help either.
Any ideas? (the issue existed on 4.0.4 stock, and also on latest aokp 4.1.1 build 3)
Thanks.
Also the GPS icon flashes briefly (like twice) and then disappears. Watching the notifications the same thing happens - Searching for GPS- appears briefly and then dissappears.
Is this the normal behaviour?
Watching the notifications the same thing happens - Searching for GPS- appears briefly and then dissappears.
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Click to collapse
That usually means the phone has stopped searching for satellites for any reason, these usually are app-related.
Please download GPS TEST from Play store and report if it can find and lock on any satellites. If not or if it keeps loosing the connections, then something is wrong.
Make sure you don't let the screen turn off during the fix since that will disable the GPS.
d4fseeker said:
That usually means the phone has stopped searching for satellites for any reason, these usually are app-related.
Please download GPS TEST from Play store and report if it can find and lock on any satellites. If not or if it keeps loosing the connections, then something is wrong.
Make sure you don't let the screen turn off during the fix since that will disable the GPS.
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Click to collapse
I have tried GPS Test and it sees 0 satellites. I have also tried a couple of other apps with no success.
Even with GPS test running, display on, I still observe the same flashing of the icon and notification popping up, then disappearing after 2 seconds and reappearing again...
Have same problem. I tried GPS test. It take about 5-10s to lock the GPS. However, it will dropped after sometimes.
If some of you guys are not running stock ROM, then there might be kernel related.
I tried Temasek's newest kernel yesterday on my AOSP MIUI ROM, but couldn’t get a gsp fix.
Went back to siyah kernel and got fix within seconds.
Also try setting your regional pool with fasterfix
mjolne said:
If some of you guys are not running stock ROM, then there might be kernel related.
I tried Temasek's newest kernel yesterday on my AOSP MIUI ROM, but couldn’t get a gsp fix.
Went back to siyah kernel and got fix within seconds.
Click to expand...
Click to collapse
I had the issue on stock Rom 4.0.4 before I flashed aokp build 3. But maybe I'll try a different Kernel then... just to make sure that this is not the problem
slaphead20 said:
Also try setting your regional pool with fasterfix
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Click to collapse
I have tried that, did not help.
Update:
Tried flashing latest Siyah kernel, but GPS is still behaving the same odd way,
Thanks for the suggestion anyways
manormachine said:
I had the issue on stock Rom 4.0.4 before I flashed aokp build 3. But maybe I'll try a different Kernel then... just to make sure that this is not the problem
I have tried that, did not help.
Update:
Tried flashing latest Siyah kernel, but GPS is still behaving the same odd way,
Thanks for the suggestion anyways
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Ok, me tried syriah and faster fix now. See any improvement
Fasterfix , faster gps and new kernel cant solve the problem.
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pah8000 said:
Fasterfix , faster gps and new kernel cant solve the problem.
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Click to collapse
Then its hardware return to service centre .
jje
Aluminum Case
I thought my GPS was busted as it showed which satelites were available (agps had downloaded) but it woudn't lock.
I then took my aluminum case off the phone and discovered that this was interfering with the GPS lock.
So take your case off before assuming that the GPS is buggered. *sigh*
"My gps wasn't working on my phone. I took it to the Verizon store after I had flashed back to stock, they messed with it for a little while and then ordered me a refurbished one. I received it the next day and when I powered it on guess what the gps didn't work. So I called tech support and to my surprise the person that answered the phone actually knew what she was talking about.
She told me the gps issue is a Samsung issue, (even though is only effects Verizon and sprint phones) they are working on an update to fix it. But in the mean time she told me how to do a work around to get it working. Here is what she had me do."
Go to Settings
Application manager
click all at top
go to Google services framework
clear data
go to settings
Application manager
click all at top
go to maps
clear data
uninstall updates
Go to location services
turn off VZW Location service(leave it off to)
Power cycle phone
update maps from android market
now the gps should be working.
I have caught it happening a couple times now, seemingly at random.
I am not running Maps, or any other app that needs GPS... I hit the power button to wake the phone, swipe to unlock, and notice the GPS icon in the notifications.
Taping the notification just takes you to GPS location settings. Checking battery use shows no apps running that need GPS. No other direct indications that I have found in settings as to what is polling the GPS.
Anyone know what app/service is opening it in the background?
The weather clock updates itself when you unlock causing gps to hit for a couple seconds.
I checked that first... the "last updated" message said a couple hours prior. (I have it set to update every 3 hours) So I ruled that out. But I guess I could be wrong.
Seems to me, using GPS is a bit of overkill for weather location.
Marine6680 said:
I checked that first... the "last updated" message said a couple hours prior. (I have it set to update every 3 hours) So I ruled that out. But I guess I could be wrong.
Seems to me, using GPS is a bit of overkill for weather location.
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How else does it figure out what city you are in at any given time?
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Its TwiX said:
How else does it figure out what city you are in at any given time?
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Click to collapse
Network location service...
It can tell where you are by knowing what cell tower you are connected to... as it knows the cell towers physical location due to a database.
This is actually how the GPS in our phones can lock on to positions in seconds rather than a couple minutes.
Cell phones have aGPS (Assisted GPS) where the cell tower info is used to get a rough position fix and speed up GPS lock.
Marine6680 said:
Network location service...
It can tell where you are by knowing what cell tower you are connected to... as it knows the cell towers physical location due to a database.
This is actually how the GPS in our phones can lock on to positions in seconds rather than a couple minutes.
Cell phones have aGPS (Assisted GPS) where the cell tower info is used to get a rough position fix and speed up GPS lock.
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Click to collapse
VZW location services (network location services) could be used, but it isn't for weather. Which is why I asked my question...
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Its TwiX said:
VZW location services (network location services) could be used, but it isn't for weather. Which is why I asked my question...
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Most apps that use location can use network location services... including weather apps... though maybe not the Samsung app. Which is why I am curious as to why it uses GPS vs network.
I never have the "Verizon location services" turned on, never have on other phones either, and other apps can use network location just fine... as "Google location services" can provide that.
Google Now checks when I'm away from home and tells me how long it takes to get back with traffic, probably using the GPS. Have you activated Google Now?
I've noticed this as well. It's not every time I unlock but I will see it come up randomly. I think it's the weather for my clock widget. I'm not too worried though since my battery life has always been fantastic.
No Google Now...
If its the weather... seems silly to use GPS over network location.