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My N1 is very difficult to fix GPS.
When indoor, I lost all stas, and when outdoor, with out cloud, it take about 3-4 min for fix GPS with 6-8 stas.
I try some solutions in here, but no lucky.
my N1 rom: cyanogen nightly build (last)
radio: 5.08....
Plz help me
Indoor fix will always be difficult to impossible. Nothing out of ordinary.
For quick outdoor fix - do you have data connectivity? Or you're not using 3G data? If not - that's the reason for a long fix time.
If you do have cellular data, try going into your APN settings and changing your primary one so that the APN type says:
default,supl
This greatly improved my lock time.
Sent from my Nexus One using XDA App
Cyanogen 6 definitely has a GPS issue: http://code.google.com/p/cyanogenmod/issues/detail?id=2090
While AGPS settings improve the performance, something is still wrong. I remember stock Froyo to be a 5-20x times faster at getting a GPS lock (I've had cases with a clear blue sky where it's taken 120 seconds to get a GPS fix, before it was a max of maybe 10 seconds).
Also I notice that with GPS Status, I see 1, 2, then 3, 4 satellites show up, then they all disappear... and it starts again, until it gets around 7-8 satellites and gets a lock with 32m accuracy and then the precision slowly increases...
I wish someone could tell me 1) what change Cyanogen has implemented that causes this behavior 2) how to revert back to the old GPS code.
Strange. Your experience doesn't match mine. CM6 here on an AWS Nexus One, with the newer radio. I can get a lock in seconds on GPS Status.
Sent from my Nexus One using XDA App
ever since my switch to cyanogen i have had same problem
Cmstlist, turn off your data (3G and wifi) and try getting a lock with GPS Status so you can see the progress. I'm running the Rogers/AT&T version, and this bug drives me crazy. I'm running the 9/20/2010 nightly, but even RC3 had this bug.
Well if you remove access to aGPS, of course you'll take longer to get a lock.
My guess: stock N1 gets a faster lock because it has a supplementary cache of offline GPS info supplied by gpsonextra. The urls for gpsonextra appear in /etc/gps.conf in CM6 but I'm betting it doesn't function properly on an AOSP firmware. Can anyone prove my instinct right or wrong?
Sent from my Nexus One using XDA App
I've checked on Enomther's build I'm running, which is also AOSP ROM. The most significant correlation of GPS lock time I've noticed was only with data connectivity rates. I've used GPS Status, and it took ~5-10 seconds to lock both in the open near my house and on the moving train at 150km/h in a significantly changed location, with the only thing being common - there was good 3G reception in both areas. Both times it locked in 2 "batches", 3 satellites being locked in the 1st one, and another 5-6 in the 2nd one. The first "batch" is probably strong satellite signals that were locked after Almanach download almost immediately, and the other "batch" might have been post- Ephemeris download. Either that or it has gpsonextra functional - but in any case, the lock is super-fast when the data rates are good.
On the other hand, the data registered on Traffic Info is only 40k download and 20k upload - even on GPRS it won't take long. But the base station needs to support aGPS - that's also something to consider.
With my Cappy, I use GPS Status and it tells me sometimes its 10 metre accuracy but the blue circle on maps is bigger than that. WTF?
It depends if you're using relative GPS or proper GPS.
If you search around you can find out how to use LBSTestMode (which will tell you how accurate and how quick the GPS fix on your position). I'd tell you what the code is to get into that, but it's different depending on what version of Android you have at the moment.
I am running Serendipity 6.2 do i still have access to that?
Yep, you should.
Go to the phone dialer, and put in *#3214789650#
You should see the GPS menu there.
thanks. I got in there now. What do you mean by relative GPS vs proper GPS
Your GPS will get a really rough "guesstimate" of your location really quickly, but it usually takes a while to get your proper location (within 5~40 meters).
There are (at least) two apps which will help you to see what your GPS is doing and why it is reporting what it is reporting. Both can be found in AppBrain and both are in the Market:
Chartcross GPSTest
GPS Status
In addition, GPS Status allows you to refresh the A-GPS data which speeds up the GPS finding satellites from your current position. (I don't think A-GPS data is refreshed automatically by Android; it was in my HTC WinMobile phone).
I think GPSTest is the easier to understand app and you can see the instant a lock is established with each bird. GPS Status reports to you how long it takes to get its first reliable position reading (which takes a minimum of three birds). Although there is overlap in their functions, the two apps together make one fantastic app!
Overall, for the most reliable GPS information, with full position information and fast position updates WiFi should be on and A-GPS data recently updated (which can be kept updated through WiFi). See this: http://en.wikipedia.org/wiki/Assisted_GPS
The way accuracy is determined is by an algorithm which looks at the number and location of the satellites to which the GPS is locked. In general, the more "locked on" birds, the better accuracy will be. The accuracy reading can be misleading. If you have four birds locked and loose two, it will take several seconds to report the change in accuracy. If you are moving and lose and re-lock birds repeatedly, the accuracy value can be 'way off.
BTW, it is the forth "locked on" bird that makes it possible to report altitude.
If where you actually are and where the GPS says you are are not the same, the fault is not exactly attributable to the GPS. What causes this is most likely lost and regained locks on a minimum of three birds. When you are looking at Google Map (for instance) you really don't know what your GPS is doing. At any point in time, Maps could have no consistently useful GPS data (due to the inability of the GPS to "see" three birds). Probably what should happen is the blue triangle should simply disappear unless the GPS is locked on three birds but maybe Google thought that would be un-nerving. So, the blue triangle "wanders" as the GPS "wonders" where you are. Of course, a better SNR in the thirteen receivers which are the GPS would help. When Maps doesn't report where you are correctly, you can see what your GPS is doing with GPSTest. Hope this helps.
Since the JB update, my phone can never get a GPS fix. I have used both GPS Status & GPS Test which, after 30 min outside in an open area, briefly found up to 7 satellites but no GPS fix. Maps and Nav refuse to work without a proper GPS fix. Suggestions?
EDIT: Here is a video of how I got it working, which seems hardware: https://www.youtube.com/watch?v=c6XyGOrO6-4
Hi,
I've done a fair amount of searching on here and google regarding the gps issues with this phone. Tightening the screws definitely helps with the lock time, but I am still having issues with the device dropping gps lock when the display is off.
I have an S3 Mini running stock Android 4.1.2 and mainly use Viewranger for mapping and the GPS status app. Both apps work fine while the display is on, but when it goes off, gps lock is lost after an indeterminate amount of time. Setting GPS Status to 'Use gps when screen is dimmed' makes no difference.
I use both of the above GPS apps on a HTC Wildfire and a Galaxy Tab 8.9 and neither drop GPS lock when the screen is dimmed, so it is definitely an issue the S3 mini.
Here's hoping for a fix on this otherwise great device!
TIA
fourth ooplotel
Maybe I should rephrase the question
Is anyone here *not* having a problem with GPS lock when the display sleeps?
Ta
I hav the same problem which means I'm unabble to use running apps.... Have you found a solution?
No fix yet unfortunately, and it's looking increasingly like there never will be one.
I've been taking a GT8.9 in my backpack for GPS on walking trips. I'll also keep my old wildfire in case I need a pocket-sized GPS device that actually works!
elshiftos said:
No fix yet unfortunately, and it's looking increasingly like there never will be one.
I've been taking a GT8.9 in my backpack for GPS on walking trips. I'll also keep my old wildfire in case I need a pocket-sized GPS device that actually works!
Click to expand...
Click to collapse
Hi, i've just purchased the S3 mini phone and I have the same problem. Previously I had a Wildfire S one and I've never had any problem, even taking into account I use GPS to track my trip when I sail on the sea. I'll try to summarize some clues I've found:
- Samnsung Galaxy S3 mini with Android 4.1.2
- I usually use "Marine" app, from Navionics join "GPS Status"
- The problem only appears with "track" option, after stand-by, but after an indeterminated amount of time.
- Once we check the GPS is not working, I can see on GPS Status the satellites but no one providing position (i.e. value of 0/12 on pos/sat field). Finally I need to restart the app, GPS Status and the GPS to get the connection again.
- In other forums I've ridden about not to switch off the screen to avoid Android turn off the GPS because of energy safe mode. With tracking function should not be necessary do it.
I hope anyone can give us some light.
jesvig said:
Hi, i've just purchased the S3 mini phone and I have the same problem. Previously I had a Wildfire S one and I've never had any problem, even taking into account I use GPS to track my trip when I sail on the sea. I'll try to summarize some clues I've found:
- Samnsung Galaxy S3 mini with Android 4.1.2
- I usually use "Marine" app, from Navionics join "GPS Status"
- The problem only appears with "track" option, after stand-by, but after an indeterminated amount of time.
- Once we check the GPS is not working, I can see on GPS Status the satellites but no one providing position (i.e. value of 0/12 on pos/sat field). Finally I need to restart the app, GPS Status and the GPS to get the connection again.
- In other forums I've ridden about not to switch off the screen to avoid Android turn off the GPS because of energy safe mode. With tracking function should not be necessary do it.
I hope anyone can give us some light.
Click to expand...
Click to collapse
I have the same problem and think I have the solution (I am still testing, but sofar so god).
Use Keep My GPS Alive (testing) or GPS Keeper Lite / Keep Alive (still to try). Look for them in google play.
miguel.bo.martins said:
I have the same problem and think I have the solution (I am still testing, but sofar so god).
Use Keep My GPS Alive (testing) or GPS Keeper Lite / Keep Alive (still to try). Look for them in google play.
Click to expand...
Click to collapse
Thanks for the suggestion but I tried both of those apps and neither prevented the gps dropping lock when the screen was off. In fact, my gps/map application would stop tracking my location when the screen was on and either of the above were running in the background, so they actually made the situation worse!
jesvig said:
- Once we check the GPS is not working, I can see on GPS Status the satellites but no one providing position (i.e. value of 0/12 on pos/sat field). Finally I need to restart the app, GPS Status and the GPS to get the connection again.
Click to expand...
Click to collapse
Have the same problem. Often 0/12 with "strong" signal. But no FIX. And it happens short time after 11/12 (or so).
This happens with various ROMs (all based on Stock)
bye,
thegrobi
Hello everybody,
i would like to get some estimations regarding the quality of the GPS.
Please on the hardware- and the software end.
Last years i used a samsung I9300 and the GPS was fine.
Then i switched to an Elephone P9000. I think from the hardware end GPS was fine, but
it didn't work very well, maybe due to bad software? And it seems to be a common mediatek problem?
I didn't find anything in the internet, what do you think, does the GPS in p9 plus work well?
THX a lot,
Henning
As per my experience my P9 Plus has one of the best GPS I've ever experienced and it even works in the airplane pretty much accurately when comparing to airplane instruments. I'm based in SE Asia and have reception of American, Russian and few Chinese satellites and fix is pretty fast. No complaints here whatsoever.
Yes. GPS is great...
Hi,
in the meantime i also bought this phone.
I can confirm now that the GPS is very good.
It is even possible to see the two tracks on the road next by next if you drive
to a destination and come back the same way.
Also, had never this accurate GPS before...
lg
Henning
Model number?
Great to hear that you all have a good gps signal. I just bought the p9 plus too. But strangely the gps signal seems like "not so good" , in my opinion. The story has to begin with my previous Huawei's phone.
I had previously owned the mate 7, which it was came with KitKat version and the GPS worked flawlessly. I updated it to lollipop then and the GPS still work perfectly, once turn on the gps, it takes only seconds (yes, it's really seconds, less than 5 seconds to be more appropriate...) to locate where I am. Those day I enjoyed using the gps as it was super fast and accurate. But things changed after I updated it to marshmallow recently. It became very unstable, very inaccurate. So I install the app "GPS test" and found that the accuracy is upto 150 feets which is very inaccurate (I can assure that the accuracy on KitKat and lollipop were only few feets or the most 10 plus feets, It was really super fast and accurate previously....). I know that weather, such as cloudy situation will affect the accuracy, numbers of satellites working etc so I tried to find out if that's the case but nope, I compared it with my cheap Elephone gps and under the same time same condition, I open the app and tested the gps, Elephone gave me the accuracy of 12 feets !
Sometimes when I try to use maps, it even can't detect where I am and if it does, it shows a wrong location. So I thought it is the problem of marshmallow as I searched on other forum and discovered that people also facing gps issue on Nexus phone with marshmallow version. I tried fixing it with another app "gps status & toolbox" , and also found out that "use wifi to improve accuracy" had to be turned on but the accuracy still only about 50 plus feets.
Then I bought the p9 plus, and hope that everything shall be very good just like the mate 7 KitKat and lollipop version, but it is not! The accuracy is also 50 plus feets after doing all the improvement work as above. So dear fellows I would like to ask what is your version of marshmallow and what is the accuracy of your p9 plus? Mine is VIE-L29C20B100. I am thinking if my version is not updated to the latest? And if there is a latest version , does the gps work good?
Hey guys!
I´m not really pleased with the performance of the GPS on my P9 plus ... but the app itself could be to blame. I was traveling on the highway and the navigation got confused and thought i´m traveling on the road parallel to the highway (surely minimum 100m distance between them). I´m using OSMand+ for navigation and it worked fine with other phones so far. Which app are you using?
I use Google maps, it works great imho, I came from a Galaxy S5
Try to create a new user profile on the phone. Switch to the new user and check if the GPS still behaves as you mentioned.
Hi all,
just to give some updates on my findings. Recently I went through a youtube video comparing mate 9 and p 9 plus (https://www.youtube.com/watch?v=_0impUegGO0&t=2s), at time 10:32 it showed exactly the GPS app that I use to test the GPS signal and it also showed exactly the same results as my p9 plus. This being said, I believe there is no way we can further improve the GPS accuracy and I suspect it is due to mashmallow problem (as I had said KitKat and lollipop run very well in accuracy and Nexus user with mashmallow also complain their GPS accuracy is not good), not because phone GPS not good. So maybe we will have to wait till Huawei release firmware update for android Nougat and see if it improves the GPS accuracy.
However, having said that, I didn't really find the GPS signal "not good" in real life. I mean, when u use the GPS app test the GPS it gives "not good" accuracy, but when I open the map for navigation, what I experience so far is EXTRAORDINARY GOOD. I turn on the GPS and immediately switch on the map app, it instantly locate where I am, not even trying to "looking for GPS signal", really really fast, really instantly locate where I am. And it is super accurate. So I think maybe the GPS app is not something that we should use to gauge whether the phone GPS quality good or not, the real life performance will tell more truth. Just like Antutu does not always really reflect the real performance of the phone.
So for those who are having GPS problems when using map, I will suggest u all try to use another map app, maybe the problems really came from the map itself but not phone GPS problem. So for this moment I will stop looking for solution to improve the GPS accuracy (on the GPS app wise), and enjoy using my p9 plus, hope u guys too
Hi, as you say, forget tests, how does it actually work in real life.
Bought my wife one a few days ago and last 2 days testing gps driving around was only seconds to fix and no dropouts in about 1 hour driving. Thats my test.
Great phone by the way, and top quality finish.
If only it had an FM radio...
Sent from my HTC One_M8 dual sim using XDA-Developers mobile app
I find it's slow to lock or find a location, compared to my previous phone (Z Ultra).
If I'm somewhere (even outside, away from buildings, with clear view of the sky) it will take a good few seconds to lock onto my location. Old phone, and even my tablet, are almost instant, taking no more than 1-2 seconds.
This is using Google Maps.
Just a minor niggle, but can be annoying when in the car and needing to find directions quickly.
djyoshii said:
I find it's slow to lock or find a location, compared to my previous phone (Z Ultra).
If I'm somewhere (even outside, away from buildings, with clear view of the sky) it will take a good few seconds to lock onto my location. Old phone, and even my tablet, are almost instant, taking no more than 1-2 seconds.
This is using Google Maps.
Just a minor niggle, but can be annoying when in the car and needing to find directions quickly.
Click to expand...
Click to collapse
Staying outside, especially without any buildings around or an empty land, could be harder for the gps to locate you. I am guessing... This sounds not logic but let me tell what I found again...
Recently I use an app which provide public transport info. This app needs gps in order to locate where are you and provide the info for the public transport at the area you are standing at. Just when I switch on the app and yet to switch on gps, my gf helped me to press the "locate me" button and I was telling her don't do silly things as I haven't turn on gps. But right after that the phone located where I was! I was like ehhh...... how come.... I double check and confirmed that I didn't switch on gps!
So again, recently I am adjusting the phone settings hoping to lengthen the phone battery (even though it's already very good. I can use it for 2 days per charge ). I found something very annoying in one of the setting - location services. Numeral time I have chose the 1st option "use gps, wifi and mobile networks (high accuracy)" and it keeps set it back to the 2nd option " use wifi and mobile networks ". I thought it was a bug of the phone but then later when I relate it to the event happened earlier (the public transport event mentioned above), I was thinking could it because I never turn on gps? then I turned on gps and yes, it automatically switch to the 1st option, and when I switch off gps, it auto switch to 2nd option again.
I then realized that other day when the phone located me without turning on gps, I was close to the MRT station which provide free wifi. And I am not sure do you guys ever experience that sometimes when you switch on the map app without turning on gps, the map itself locate where u r (maybe not very accurate but it's at the bearby area), just that when u try to use the map it will ask u to switch on gps.
That being said, I suspect the phone continuously locate where we are by using the wifi router(if any, at the nearby place) because wifi router is location specific? (not sure, maybe expert know this...) and that's why when u don't switch on gps, it is already "pre-locate" where u r and only if u switch on gps it will immediately give u the accurate position. And that also means if u stay outside without any buildings (and so without wifi too), the phone could not pre-locate u and it will solely rely on gps and that's why take some time to locate where u r?
Anyway this weekend I will be going for a long distance trip and will test the gps to see if the phone give good gps signal
just back from the long journey vacation. The phone gps works flawlessly without dropping off at all. And time to locate also excellent within 2 seconds