Database Users

Maybe our GPS isn't so bad after all..

DROID with network based location off, GPS based location on
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Vibrant with network based location off, GPS based location on
Same story for one DROID X at this store even with it's AGPS on (there is an option within the location menu for enabling or disabling aGPS on the X), but another DROID X got a quicker fix than both of those DROID's however I suspect it was polling GPS before I opened up maps. The Vibrant pulled that location in about 10 seconds, no "Location Unavail." Msg at all and it was all indoors.

ha thats the same store i bought my vibrant from i can tell your by rainbow and 215 but yeah i havent really had issues with my gps at least that i know of it seems accurate to me

Side by side comparison with my G1 shows me (at least) that the 2 Vibrants I've tested take about 10x as long to get a fix and use about 1/10th the number of satellites.

I haven't had a single gps error since before the vibrant was even released but judging by how many people are I suspect certain batches were defected

Maxy6 said:
Side by side comparison with my G1 shows me (at least) that the 2 Vibrants I've tested take about 10x as long to get a fix and use about 1/10th the number of satellites.
Click to expand...
Click to collapse
Same story for me, except my Vibrant side-by-side with my Blackberry 8900 (can't confirm # of satellites but I can confirm time to get a lock).
Anecdotal evidence isn't convincing me that Samsung is dragging their feet here.

Maxy6 said:
Side by side comparison with my G1 shows me (at least) that the 2 Vibrants I've tested take about 10x as long to get a fix and use about 1/10th the number of satellites.
Click to expand...
Click to collapse
That sounds bad but can we get some guesstimates in time? 1secondx10=10 seconds. 10secondsx10=100seconds..
In MS-Based mode under LBSTestMode (whether or not this actually makes any changes to GPS behavior, that's what I have it in) It takes no time to get a lock.

gps works great for me. I get a lock in doors instantly..... Its a little off though in doors but out doors its spot on. I dont need to find a pot of gold so within 20 feet is good for me.

Locational services work, maybe, one out of five times for me. When they try to locate me, it shows me in a neighboring city for at least five minutes. If I wait forever, it will sometimes finally update with the correct location.

So im at work in a huge brick building. With just my location on it puts me about 10 blocks away. I went outside on the deck at work in a open view, opened google maps again and saw I was still 10 blocks away, I pulled down my notification bar and turned gps on, within 4 seconds it found me right dead smack center of my work building.
I dont know, I dont have any issues though. Thing works great for me...

The thing is, it sometimes works quite well. I haven't been able to nail now a pattern with it. Turning on AGPS helps a lot, sometimes. Other times it fails to download the data for AGPS and drops to standalone mode, which is what it should do, but why would the download seem to fail when the G1 sitting next to it works fine? I've tried various settings for the server and such, all of them work sometimes.
The other irritating thing is when it seems to download the almanac, then proceeds to sit there "seeing" only one satellite (SNR bars in GPS Test). It knows which ones are in the sky, it should use that to get the GPS chip tracking all of them at once, as it has the channels. It's acting like a single channel receiver sometimes. That's a big reason why AGPS is so fast, it knows which channels to listen on, no need to search for signals.
I didn't have the G1 before the GPS was fixed, but it sounds a lot like our issue. The way the SGS acts leads me to think it's software related, likely the GPS driver or firmware. The actual RF performance seems pretty good, sometimes better than the G1 going by the SNR reported. It's just acting like it's often getting poor instruction from the driver/OS level.
My biggest complaint is that Samsung and TMobile are trying to act like it's not a problem. If Samsung can't reproduce it, they aren't trying or they have programmed the GPS chip in such a way that it works in their location. Samsung is a global company, there's no excuse for not testing a flagship device in multiple countries. And in todays market, there's no excuse for not being upfront and honest with your customers. Nor is there one for not beta testing with real customers in every major market you want to enter.
If I were running things over at Verizon, I'd be laughing my way to the bank and telling Samsung to keep their busted SGS. They were smart enough to get more than one manufacturer with a "superphone" and don't need Samsung. Between the Droid X and the Incredible, they have got TMO and AT&T spanked hard.

Yea, how long until their competitors start running ads poking fun at it, like the no jacket required ads last week making light of the iPhone antenna problems? HTC and moto should be all over this.

I am unable to get a lock indoors and outside it takes 20sec to a minute or more to lock on and then it turns on and off sporadically. It will seem to be fine and then it just does not function and then in awhile it seems to be better. I have the MS etc. fix enabled and before that it was not functioning with any kind of regularity or accuracy. I get 1 of 12 in use at the most and most of the time I get zero in use.The accuracy after it finally gets a lock is adequate but not great.I use Cardio trainer on a daily basis several times per day and it is just awful as it locks on and off and leaves me with terrible accuracy. Indoors it shows me about 2 to 3 miles away and most of the time it picks up no location at all. An email I received back from Samsung after complaining stated that they have not found the cause of any problem and they are continuing to try and find the cause and resolve the issue. I called tech supp and they at least mentioned that there might be an issue and could give me no other information. That is not very reassuring to me as the device has been out internationally for some months now and out of the box has had GPS issues. Really makes me question my decision to purchase this device. I do love it but the GPS is a integral part of my usage and it does not look like there is any help anytime soon. I am just past the 14 day period so a refund is not possible. I was holding on to the hope that Samsung would act quickly or even just act on this issue and I guess I was betting on a tired horse.I guess Samsungs track record speaks for itself and it is not too pretty. I really do prefer using it to my N1 it has tremendous potential to be as good or better than any phone on the market.

How's the GPS?

How is the GPS on the G2/Desire Z?
Is it fast? Can it lock quickly on the signal? Is it accurate?
I'm currently using a SGS I9000, and let just say it is quite crap.

GPS is pretty ****ty for me. Not as bad as (I assume) the GalaxyS line, but still pretty ****ty. 30m is unacceptable when my Droid (1) can get me walking around my house.
edit: Lock on takes for-frickin-ever indoors (if at all), and is decent outdoors. Yes, I've run gps status and cleared/redownloaded gps data, before anyone asks, lol.
Again, spoiled motodroid former user. I'd go back but vzw rapes with charges, and I like the G2 aside from the horrid (imo) gps. Ymmv.

zerosx's report is the first negative report i've seen re the GPS - mine's on the money (usually within 10') and 40-45 seconds from cold start to a lock on 4-9 satellites. not unusual to see a lock on 11 sats out of 11 in view
below is a screen capture of GPS Sat map i took, while in the house. It actually had me located withing 10 feet of where i was, until i plugged the phone into the usb port to take the screen capture and it jumped back 10 feet more at the instant i plugged it in.
did a "my tracks" log on a short trip across town - none of the path that looked like a drunk had drawn the lines like on my Vibrant, no cutting across corners at turns, no driving 75 feet off to the side of the road, etc
check the forums - you won't see any threads on the GPS - there just haven't been any issues
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Meh, maybe I got a bad one? I really don't know, I seriously can't get the damn thing working.

i wasn't attacking the credibility of your report, just stating it was the first one i've seen
you might consider taking it back for exchange cause mine is eerily spot on - i say "eerily" cause after the vibrant, being located on the right block of my subdivision while outside, was a lucky day. Inside the house, it wouldn't even lock on one satellite

I have had issues with it picking up GPS in my house as well. Right now I have been looking at the GPS Test app and it still displays 0 satellites. When I go to Google maps my location is close but about 10 m off or so. When I am outside I have not had a problem with it. Yesterday I was able to pick up 4 to 6 satellites within about 40 sec. I'll try out the Tracks app later today and see if it is accurate.

This! GPS Status shows no satellites indoors. It's quite frustrating.
Larry - haha no prob. I didn't give it a second thought, and you're pretty much describing my former iphone4 to the letter. It was... creepy.

The GPS works fine if I just want to lock down where I am but the moment I start trying to use it in my car for turn by turn it goes south quick. It loses all signal and is stuck on "Searching for GPS..." for about 2 minutes then comes back and gives me about 30 seconds of information before freezing up again.
It's an improvement coming from the Vibrant but still not as solid as my Nexus One.

Mine is flawless, locks up withing seconds and it's super percise. The native nav app also works rather well.
GPS is one of the strongest points of my phone.

Mine is pretty accurate.

gps is all good here

Mine Locks way way faster then my old ass G1

GPS is fantastic. Locks about twice as fast as my nexus one does. 5ft-10m accuracy generally.

The GPS has been the best I have had. It locks a lot faster than my N1.
Sent from my T-Mobile G2 using XDA App

Well, today I haven't been able to use GPS at all. No lock. I cleared everything through GPS status and still no joy. Earlier in the week I had trouble, but that was due to a setting I had turned on in Beautiful widgets. I turned it off, and everything was fine. Its still turned off so now I'm left scratching my head. Granted, we're experiencing ****ty weather today due to a Nor'easter, but it isn't that bad, as I'm having no issues with my satellite tv signal. Typically I've been able to acquire lots of satellites (8 or more typically) anywhere in my home, so I'm a little worried, especially since I just past my remorse period and am now into t-mobiles "go **** in a hat" part of phone ownership. Any suggestions? I've done two battery pulls today and GPS is still dodgy. Stuff like this makes me miss tin cans and string.

since you've already noticed one app affecting your GPS, have you thought about backing all your apps up to your SD card (OnTheFLy backup app) and then un-installing them, doing a factory reset and seeing if GPS functionality comes back?

Yeah, I thought about that. Gps started working again a short while ago. I'll probably give the backup/wipe deal a shot tomorrow. Out of all of the apps I've installed that have options concerning control of gps the beautiful widgets home weather widget is the only one that appears to knacker gps functionality. We shall see.
Sent from my T-Mobile G2 using XDA App

if its the beautiful widgets with animations, iirc some folks have complained about that update version
i'm still running the first version, with no problems

It works very well with in 5 feet. I believe the G2 is A-GPS it uses cell towers
and other means too track your location.

I used it in LA all last week when visiting. It was awesome and there was only one time where it navigated incorrectly.

Google Maps current position accuracy problem

I bought a Evo recently, overall I'm very happy with it except the battery.
I have some trip recently so I began to use the gps and google maps,i found the latitude and longitude reported by the gps chip has a fixed accuracy error of about 300 meters to the correct value.
I have a Huawei C8500, whose gps can be called perfectly correct, it can show my position correctly within 5 meters, always,it helped me to go out of some mountainous area without road correctly.
I compare the data reported by the application gps status,i see the data on the two phones always have a little difference.
My evo is hardware version 0004, the latest 3.70.651.1 stock sprint rom.
I've known that it use rtr6500 chip from qualcomm,i will try to find the datasheet to check, but as I have seen online that somebody have good accuracy on evo, so I guess it's not chip problem.
Any good suggestion?
Sent from my PC36100 using XDA App

I use google earth today, it always show the current position within 5 meters, and the time delay is maybe within 100 ms,i checked it on a road on a mountain area with a turn every 20 meters in average today, google earth can even show each turn correctly in a unnoticeable delay, and it has full 3D support,it can even show the road just shown as what I see when I'm in the car driving, and even some look around function to check the environment in 3D, it's way better than google maps.
The shortcomings is that earth has no much info about the name of the place than google maps.
Sent from my PC36100 using XDA App

My GPS says it's correct up to 5-10 meters. So far it's always pinpointed me exactly.
As far as battery life, mines pretty decent. I'm running Myns with Kings #9 kernel
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I checked the difference of the gps data of the 2 phones carefully today, in fact both the latitude and longitude difference are within 0.00005° most of the time, and the largest difference are just 0.00015°, with a calculator and a little knowledge of the earth geometry, the difference are just within 5 meters most of the time, and 15 meters at most, so the gps data of my evo is correct, the problem is google maps show the current position some hundreds meters afar always.
what may be the problem of google maps on my evo?i used nexus one for 10 months, google maps works correctly on it too.
I have no much incentive to use some hacked rom by now, as I have no interest to the system programming on android now to customize my own rom, and I don't like to waste a lot time to try the rom of others endlessly, no much fun after doing this kind of things with other phones in the past, what I want is just a phone that just do whatever I want to do.
I bought a 9600mAh/3.7V external battery,i can charge my evo fully 3 times by it now ( maybe it can charge more times after more usage) without charging the external battery, it's acceptable for now.
Sent from my PC36100 using XDA App

Try running and downloading the GPS ephemeris data with the GPS Status app in the market.. see if that helps

izico said:
...the gps data of my evo is correct, the problem is google maps show the current position some hundreds meters afar always.
Click to expand...
Click to collapse
Google Maps obeys the phone's location settings for determining what method to use (GPS vs. cell and/or wifi signals). Check your global location settings and make sure GPS is enabled, and consider turning off "Use wireless networks", at least temporarily. I do not believe Google Earth obeys these settings, using GPS all of the time, but I could be mistaken.
I believe with both settings checked, Google Maps will initially use cell tower and/or wifi signals to estimate your location until it can resolve your true GPS location. It may even continue to factor in the cell/wifi signal information, which is why I suggest turning that option off while comparing locations between Maps and Earth.
Good luck.

It does not help about the accuracy, but google maps will pinpoint my position to another place about some hundreds meters away now.
This is really weird so I try to find if I have installed something that interfere with google maps, maybe found it.
I have installed street view on google maps in the past, but this application does not work without any indication that it exists, and it can't be either uninstalled or opened, it looks like a zombie in the system now.
I guess it's still working when google maps run, it only do some wired thing to make maps malfunction now.
Do you know a way to uninstall this zombie totally? If there's no way in stock sprint rom,i need to learn to root and flash my evo then, I really don't feel much fun in this now.
Sent from my PC36100 using XDA App

[Q] CM7 RC4 + Which radio = Working GPS?

So which radio version do I flash with RC4 to get the GPS to work? It seems like I flashed all the radios but my gps doesn't work.

I'm using CyanogenMod 7 RC4 as well and I've found that GPS has been fine with the stock radio (see my sig -- that's the stock radio from Bell).
Have you tried using the GPS Status app to reset and redownload the A-GPS data?

I have a tmobile phone, so I don't know what my stock radio is. And no I haven't. Is that a free Market app?
EDIT: How do I even know if my GPS works or not? The way I am testing is by using IGo My way GPS application, which doesn't detect where I am, so I assume that my GPS doesn't work.

convolution said:
I have a tmobile phone, so I don't know what my stock radio is. And no I haven't. Is that a free Market app?
EDIT: How do I even know if my GPS works or not? The way I am testing is by using IGo My way GPS application, which doesn't detect where I am, so I assume that my GPS doesn't work.
Click to expand...
Click to collapse
Yes, you can find GPS Status on the Market.

It seems that GPS status works, Google Maps work, but IGoMyWay doesn't detect my position. Why is that?

theSpam said:
Yes, you can find GPS Status on the Market.
Click to expand...
Click to collapse
That's right, the app GPS Status & Toolbox will tell you whether the GPS is working or not. Just install for Market and open the app. If you are in clear view of the sky and a working GPS, you should see the app starting to pick up the satellites within a couple minutes or less. You will see points starting to pop up on the circular compass display, indicating the positions of the satellites. Below that, green bars will start to pop up, indicating signal strength with each satellite (maybe not the exactly correct terminology here, but you'll see what I mean). Once the GPS has locked onto enough satellites, you will see the lat/long coordinates pop up. This also means that other apps, like Google Maps, or any other map/nav programs you prefer, can start using your GPS position.
If the GPS is "broken" you will so absolutely no activity on either the circular display, or the bar graph.
GPS Status & Toolbox will also download A-GPS data, which can help get faster locks onto the satellites. The A-GPS data is regularly updated information on the positions of the different satellites, making it a bit faster for the GPS to find them.

Help me redpoint! I downloaded CoPilot and it also could not detect any GPS signals, even though I turned on GPS! Only the GPS status detected satellites.
WHHYYYY??!?! I AM SO FRUSTRATED!!
RABBLE RABBLE RABBLE RABBLE!
lulz but yeah, I don't want to spend unnecessary money on an actual GPS device if I don't have to.
EDIT: GPS status does not work anymore. It worked before. I had RC4 for both when it worked and when it stopped working. What the hell?

Have you tried this:
http://forum.xda-developers.com/showpost.php?p=12635790&postcount=20
I had the GPS issue on RC1, and this fixed it. RC2 for me worked fine as-is. I haven't tried RC3 or 4 yet. I've pretty much decided CM7 is cool if you want the latest and greatest bells and whistles, but its got more than its fair share of bugs. Right now, its Virtuous for me.

It doesn't work.
I also tried flashing the radios. They don't work either...
This is strange. I guess the last resort is to ditch CM7 and go back to CM 6.1.1? Or Virtuous?

Sounds like you got the GPS running for a bit, but now its not? What worked?

Try the OTA stock .26 TMobile radio and format the sytem, data, and cache partitions before flashing new ROMs. I haven't had GPS problems since I started doing that.

@ ra990: Do you mind directing me to the download source?
@ redpoint: The first time I turn on the GPS it would work, but after that any subsequent time I use it, it doesn't work.
EDIT: Google Maps works when I am connected to wifi at home and GPS is on. I then close Google Maps and start up GPS status and it won't detect satellites. I then proceed to open up CoPilot and the program won't detect any GPS signals. I then open google maps again and it still works. I then turn my wireless off and watched my position on Google Maps suddenly change and becomes inaccurate (IE, moves my location to a place that I was not physically at from a place where I was physically at, but was not that far off.)
EDIT EDIT: I tried 3 different roms, 1 stock gingerbread, 1 gingerbread sense, 1 virtuous. All failed on me.
EDIT EDIT EDIT: I tried ra990's version. In fact, I tried all the versions and I followed this as well:
http://forum.xda-developers.com/showthread.php?t=1021463
Nothing works.

GPS status is not accurate in measuring if it works for me. Becuase back when i did not have a lock the gps status was working but my navigation was not picking up anything nor the gps symbol showing. After reflashing the .26 radio my gps works.

Just to check, how long should I wait for it to pick up a signal before I say it "doesn't" work? Cause I've been waiting for like 5-10 minutes for it to pick up a signal each time I test.

convolution said:
Just to check, how long should I wait for it to pick up a signal before I say it "doesn't" work? Cause I've been waiting for like 5-10 minutes for it to pick up a signal each time I test.
Click to expand...
Click to collapse
If the GPS is "not working" due to the CM7 bug, you will not get a lock, or even any activity on GPS Status, no matter how long you wait. If you are getting a lock at all, or any communication with the satellites, this seems like a different issue than the CM7 bug I've seen.
If you haven't used the GPS in a while (couple days) or your location has changed significantly (like getting off a plane) its not unusual in my experience to take a few minutes, maybe 5, to get a lock. That is because the locations of the satellites in the sky would have changed enough, that it takes some time for the GPS to find and lock onto them. But if you have used the GPS recently (maybe within a couple hours, but certainly if you turn it off and go back in a few minutes) it should lock pretty quickly, within a couple minutes, maybe faster.

And does collecting them signals get that much affected by being indoors as opposed to outdoors? Will the time vary significantly?

convolution said:
And does collecting them signals get that much affected by being indoors as opposed to outdoors? Will the time vary significantly?
Click to expand...
Click to collapse
Absolutely!!!! Have you been trying to do this indoors? Go outside and try it. And with as much a clear view of the sky as possible, so an area with a minimum of trees, buildings, etc.
Although the Vision is better at getting a GPS lock in my house compared to my past 2 phones (Touch Pro 2, Kaiser), it usually only works by a window for me. And in some buildings, I never get a lock. Results will vary depending on the type of building, being by a window, etc. In the car tends to work pretty well too, but I will usually put the phone on the dashboard to get a lock, where it has a better view of the sky thru the windshield.
Although it might work indoors, its much better to exclude the building interference from the equation while you are troubleshooting.

Oooooh. That might be the problem. I will try and go outdoors and report my findings.
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Good news, everyone! It worked!
What I did was flash a radio (to be honest I forgot which one, it's either the .26 or .28b one) and I also matched it with that automatic radio matcher zip you flash. And it can pick up signals now if I am outdoors or sticking my phone out of the window in my house!
Thx everyone for all ur help!

Barometer gives spurious readings - just me?

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Pictures paint a thousand words. As can be seen above I have been getting unusual readings from the barometer sensor on my new note 3. I have run the self test on the barometer sensor and it passed. This is not surprising since the odd readings are intermittent. I am obviously using the app SyPressure, but have also had spurious readings from other barometer capturing apps as well. At this stage I have no idea whether this is a hardware or software issue or if the sensor is still calibrating. This all worked fine on my Note 2.
I wanted to ask if there are any other Note 3 barometer users out there who have had anything like this or is it just me, i.e a hardware fault on my device?
Thanks
Device: Note 3 - GT-N9005 brought sim-free unlocked.

ph0b0s123 said:
View attachment 2421088
View attachment 2421089
Pictures paint a thousand words. As can be seen above I have been getting unusual readings from the barometer sensor on my new note 3. I have run the self test on the barometer sensor and it passed. This is not surprising since the odd readings are intermittent. I am obviously using the app SyPressure, but have also had spurious readings from other barometer capturing apps as well. At this stage I have no idea whether this is a hardware or software issue or if the sensor is still calibrating. This all worked fine on my Note 2.
I wanted to ask if there are any other Note 3 barometer users out there who have had anything like this or is it just me, i.e a hardware fault on my device?
Thanks
Device: Note 3 - GT-N9005 brought sim-free unlocked.
Click to expand...
Click to collapse
Obviously I am interested if anyone else is using SyPressure or another app that stores the barometer readings on their note and not having a problem. This will be evidence that it is a hardware issue just with my Note 3.

Hi!
I've had some simmilar issues with my Barometer over the past few days. The readings are sometimes incorrect and they bounce around values. I noticed this behavior using AndroSensor as well as the test app integrated in the device (*#0*# one), I've tried factory resetting it without any luck. My phone is using the MJ7 firmware version. I have not yet rooted it or tripped the Knox Warranty. I am certain that the Baro worked before since the day I bought it I ran the same test app and the phone even managed to give me it's altitude corectly (which is a first considering neither my Nexus 4 or SIII managed that). I thought it's a firmware bug but I didn't saw people complaining about it.
So my question for you is: did you fixed the issue or you returned the phone?

I have the same problem using sypressure or any other App. I believe the spurious occure if the GPS is being activated or engaged. That's obvious with the App "Barometer & Altimeter" from Alessandro Rossi. Here you can observe the pressure while turning on GPS in parallel. Doing that, the pressure reading jumps all over the place and it recovers immediately once GPS is turned off again.
To me, this seems to be a HW flaw.

Thank you both Dirk7767 & blackdeath09 for replying. That you are in the same boat as me has actually made me happy. It means that it is not a hardware fault unique to my note 3. I was not looking forward to having to go through the process of convincing Samsung the device was broken due to this one intermittent error.
So no blackdeath09, I did not return my phone.
What I did do was test other weather applications. I did find an App called 'weather station' by a-minor. I have used this for a week with updates every 30 mins and have not had any 'odd' readings, this has been while using the GPS in my note 3 for navigation.
I did go back to sypressure and some other apps that gave odd readings during this time and still got the odd readings.
Dirk7767. I normally disable my GPS when no navigating, in the icons in the top pull down notification bar. I ran sypressure overnight last while my GPS was disabled and still got odd readings. I will do some more testing.
Thanks for both replying. It's nice to I am not alone.
Anyone else?

I also noticed that some apps make the barometer more stable than others. I also decided not to return my phone because just as you said I would have a hard time explaining them what is wrong and because it isn't something that stops me from using the phone after all. In the end, because of the variation of readings I get from apps, I've grown to believe it is a software issue that could be fixed by an update (I think it has to do with some voltage jumpiness of the baro but I am not sure - it's just a theory based on the voltage the baro has in GS3 and Nexus 4; also noticed the way you manipulate the phone affects the readings on some level but that is normal - another theory of mine is that since it is a big phone, manipulating it affects the baro and the internal parts in general - it "flexes" more).
And I also haven't found out a relation between the GPS and Barometer. It seems like if it wants to work it just works. If it wants to jump around it jumps.