Iphone 3G GPS function

Hi,
Has anyone recently been having trouble with their Map App? The GPS function do not track me accurately... I could be 2 blocks away or 20 blocks away. It also does not smoothly track my position either, all over the map. Plus the range for the potential position is large as well. My area has great cell phone coverage, so GPS shouldn't be a problem.
Anyone else with this issue? Is there a fix to this?

I am having a similar issue with my 3GS.
The map app runs very slow, when loading my current location, trying to find a new address or getting directions between address. This happens on wifi or 3G network.
Also the map app has 'lost' it's accuracy to the location. Usually it is with in a 2 or 3 block radius, but on the old operating system it was much more accurate and quick.
I upgraded to iSO4 and had issues at first with the lost connection, and i got the error message to re-calibrate in a figure 8 motion. I re-synced last night to solve the 'fuzzy pictures' issue and now the map app is just slow.
Any one have a solution. Should I back up and restore. Advice???

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This is a feature that would really make the iPhone wonderful. I do already own a Garmin GPS and love it - the downside is the large bulk that it adds (it's almost like a (miniature) CRT: http://images.amazon.com/images/P/B000A5TAT2.01.SCLZZZZZZZ.jpg )
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It would likely be done through Bluetooth - I know SONY has a bluetooth accessory for their UMPC that does just that. The GPS receiver is also quite inexpensive (I've seen them for $100-130). I wouldnt have a problem spending $50 more or so on the software either (and with Google maps built in, it shouldnt be too tough).

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I turned it off and on again. waited a couple seconds outside (in the rain )
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Here is the sdk.. https://developers.google.com/maps/. Or do a search on stackoverflow.com and people have some examples of how to use it.

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Hi,
using "Find my iPhone", is GPS always on?
Kyky

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Can the user have their location detected via a WAP site without the use of GPS? In the case of search for nearby locations via a directory service on WAP without GPS functionality (when user cannot download app version).
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This cannot be done directly. Phones with GPS will have the 'network positioning' feature which helps to obtain a GPS fix if satellite signals are poor, but I'm pretty sure it can't be used as standalone location method.
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Message Edited by mccbleue on 06-Apr-2009 04:55 PM

Lenovo Helix GPS functionality

Hey there.
First of all, I have to say the ThinkPad Helix seems to be a pretty awesome piece of kit, however I seem to be having a few issues with the GPS functionality.
I have had a look on the forums however I haven't been able to find any specific information as to the problem that I am having.
The Helix I have is the version with the Ericsson C5621gw 3G network adaptor. From what I understand you have two different types of GPS - standard, and assisted (which uses Wi-Fi/network triangulation to report a semi-accurate location). As far as I am aware, the C5621gw uses standard GPS, however I have been unable to get any GPS to work, even within the Bing Maps app.
When opening Bing Maps as an example, it constantly reports the location as being in London, even when I'm the other side of the country. When the Wi-Fi is connected there is little issue, however when using the 3G the location is always way off to the point of being unusable. I know that the GPS is built in through the network card, and that COM ports aren't used within Windows 8, as it uses a separate geolocation stack to report information based on the Windows Location Provider.
Does anyone have any ideas what could be happening? If the C5621gw only uses assisted GPS based on mobile network location then I guess there is very little that can be done, as this may be a network dependent feature, however if it does use standard GPS then something is clearly wrong. I have location enabled within the OS, and all the drivers are installed as they should be. I have listed the drivers installed below.
On a different note, I also have an issue with the BIOS as well. When tapping to enter the BIOS before Windows starts, it automatically goes straight onto a blue screen and restarts itself. The BIOS has been updated, and I am using the stock OS that came with the device.
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Have disabled Windows location Provider, and went outside and waited for about 10 minutes. GPS did not appear to connect. Maps app does not respond when I try to go to 'my location'. Also installed a Win8 app called 'GPS Satellite' and it showed that the GPS was 'initialising' and would not find a location.
Then installed Visual Studio 2012 and the WDK so that I could run the Sensor Diagnostic Tool. I observe that the C5621 chip is staying in the 'initialising' state and doesn't seem to get out of that.
However, if I re-enable the windows location provider, then I see that:
- Maps now finds a location, albeit the wrong location
- GPS Satellite app now finds a location, same wrong location
- The sensor diagnostic tool still says 'Initialising'. Huh?
So I'm wondering if I'm looking at the right fields in the Diagnostic tool. Either I'm looking at the wrong thing, or the GPS is just not working.
Can you please take a look at the screenshot of Sensor Diag tool and tell me if the red circled field is what I should be looking at?
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IPhone 3GS GPS problems

I upgraded to a 3GS a month ago. I noticed on a trip with my family that my GPS wasn't working properly. The GPS wouldn't find my position accurately, there was no pulsating blue ring around the blue dot, and the GPS wouldn't track when we were driving. My brother and sister-in-law's GPS was working perfectly on their iPhones. Just mine wasn't tracking.
So I went to the AT&T store and they replaced my iPhone 3GS with another brand new one. The GPS still isn't working properly.
So I went to the Apple Store in SoHo and found that none of the iPhones on display would get an accurate coordinate either. All of them were about a block off with to the west or north and none of them had the pulsating blue ring around the blue dot.
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Message was edited by: fasheezy
Message was edited by: fasheezy

There's a lot of discussion about receiving the GPS signal indoors. As the USAF Frequency Manager, who licenses the GPS Satellites, I'd like to weigh in on this subject.
The GPS signal is extremely weak, too weak to be received indoors more than 5-10 feet from a window.
A GPS receiver must receive at least 3 GPS satellite signals to get a fix.
For those who believe you're receiving the GPS signal indoors, what you're receiving is the triangulation of the cell phone towers, which is why it's not accurate.
For those in NYC or other highrise building areas, your GPS signal will not be accurate, if even received, because of the reflection of the GPS signals bouncing off of the highrise buildings. As the GPS signals bounce around among the buildings, they're delayed, and therefore not accurate when the GPS receiver finally locks onto them.
Since upgrading to OS 3.1.3, my iPhone 3G GPS has been having fits as well. I'm in Los Angeles, but when it gets cold (sitting in front of the A/C vent in it's holder) it stops working and shows that it's in Boulder, Colorado. It becomes accurate again after letting it warm back up, or turning off 3G. Go figure.
Mike

IPhone 3GS GPS

Hi,
The GPS on my iPhone 3GS appeared to stop working. I traveled overseas recently and tried to locate myself with Maps app, and it failed to locate me. (I had cellular off, Wifi ON, LocationServices On, 3G off). The compass app also shows the previous GPS coordinates and never updates to the new location I am in at the moment.
I have tried rebooting my iphone numerous times, resetting network settings, resetting location services, tried different GPS mapping application, tapping the iphone against my hand, standing outside the house hoping to catch any GPS satellites, tried different combination of cellullar/3G/Wifi/LocationServices on/off states, and doing the steps that others suggested (after Google-ing) - all failed to provided me with a working GPS.
If I read "support.apple.com/kb/HT1975" correctly, then when I switch off both cellular and Wifi, iphone 3GS should be using the internal GPS to pinpoint me.
But, according to "support.apple.com/kb/HT1355", the GPS module is switched off if I switch off cellular...which contradicts the KB above..
I tried switch on & off cellular, but my GPS coordinates (as displayed in Compass app) remain wrong. Anyone has similar experience ? Do you think my iphone GPS module is faulty?
Any suggestions would be grateful. Thanks.
Information:
===========================================================================
"support.apple.com/kb/HT1975":
"If you're not within a clear line of sight to a GPS satellite, iPhone 3G and iPhone 3GS find you using Wi-Fi. If you're not in range of a Wi-Fi hotspot, iPhone can find you using cellular towers."
"support.apple.com/kb/HT1355":
"When airplane mode is on, [icon] appears in the status bar at the top of the screen, and no cell phone, radio, or Bluetooth signals are emitted from iPhone (and GPS is not available)."

Same problem here. On a trip abroad the GPS AND Compass completely stopped working. It worked for 7 days abroad before malfunctioning. It has been working flawlessly since I bought it 7 months ago. I´v tried all of the above measures and some more. At times the compass flickers around for a second before locking at Zero degrees North. Maps works as long as i dont try to locate myself. Then the blue haircross-button starts with the "spinning-Wheel" of loading, and just keeps going.
I´ve also noted that since this issue started last week the phone drains the battery a lot faster, even when I´m not fiddling around alot. I did a test some days before this issue and reached 20% in more than 5 days (>120h)!
The only test that I´ve read about and haven´t tested is the "rm -rf"-command witch requires a Jailbraked phone. I argue that I shouldn´t need to jailbrake it to get it to work properly.
So? Is it hardware or software?
Glad for responses.
Wisconxin, did you get it right?
/G

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Solved!
Go to Solution.

and no dice on the GPS for the 8530, nada.
1. If any post helps you please click the below the post(s) that helped you.
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3. Install free BlackBerry Protect today for backups of contacts and data.
4. Guide to Unlocking your BlackBerry & Unlock Codes
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PIN: C0001B7B4 Display/Scan Bar Code
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Hi! I do not know if it's possible, but I have the latitude and longitude and through my application would send to the iPhone's GPS, TOMTOM one example. It
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Accuracy in your example is between 17 & 21 ft.
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IPhone 3g - GPS No longer functioning

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I noticed a few days ago that I could no longer get a GPS lock using my iPhone 3G. Google Maps would provide a cross hairs location, but never a 'blue dot' indicating GPS lock. I have several other GPS apps installed, including iTrail, Trackthing and GPSKit. In each case these apps each showed no GPS lock, and no position accuracy greater than about 125 meters - which seemed to be location information based on wi-fi triangulation rather than GPS.
I originally attributed this to a software problem. I saw various references to turning 3G on and off / turning wifi on and off / resetting the network settings on the Phone etc. in these forums and elsewhere. I tried every one to no avail.
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Out of curiosity, how did they test/verify it? My GPS is no longer accurate, it gets the general location with an error circle of varying size, but rarely a nice radar blip lock. My local apple store is in the mall, so I don't know what kind of GPS accuracy they would expect in there anyway. I did take some screenshots of my big error circle while driving the major highway in the area.
Anybody know what would cause it to lose accuracy? Again, it gets my general area, but not nearly as well as it used to.
Thanks

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Question?
Answer.
If you don't have EDGE, or 3G, how is the iPhone MAP app going to download the map?
It won't, as it can't.
I don't believe they are built in.
You believe right.
This is why Apple needs to let someone build a true GPS app for the iPhone, which you can download the maps to the phone.
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Cunning1_
You are a legend!! I have spent countless hours uninstalling, reinstalling itunes, playing with firewall settings, reading articles on this problem!! I only have to un-sync my iphone 5 and then the airplay icon magically appeared!!! Maybe I have too many devices syncing via wi-fi, or maybe it is the Iphone syncing??
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Iphone 3G GPS function

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