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Hi,
I've been using my nexus one for the last couple of weeks using google navigation.
I find on a journey (out in open space) that about about 5/6 times every 30 mins I get a large blue circle around the navigation arrow and an occasional gps signal lost message.
I've used by Blackstone/Touch HD in exactly the same areas before and never had this problem.
I also had a desire for a couple of weeks and never saw this occur.
Has anyone else had a problem like this?
Thanks
I don't know if you rooted or not, but after I installed CM 5.06 I have to put my phone in airplane mode then turn on GPS wait for a lock then turn airplane mode off, to get a lock.
Jack Everyman said:
I don't know if you rooted or not, but after I installed CM 5.06 I have to put my phone in airplane mode then turn on GPS wait for a lock then turn airplane mode off, to get a lock.
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Hi, thanks for the reply, no I've not rooted it. Don't have any problems like that, it's just it seems to keep loosing the lock every now and again before regaining it, not great when you are somewhere you don't know and it just stops for 30 seconds.
I guess nobody else has seen this?
Anybody else getting this. Don't want the hassle of returning it to HTC for fixing if other people have the issue.
I've had that happen driving down the highway. Seems to drop out for about 30 seconds or so. I always figures it was switching between satellites or something (I know little about GPS so this may be way wrong). It has happened when using maps and co-pilot.
I see the blue circle pop up every once in a while but I've never seen it lose the signal.
The blue circle just indicates that it doesn't have the optimal GPS signal to get a precise lock... but it's pretty close. I'm not sure why it does this though... once a GPS lock is acquired it shouldn't drop it just driving around on streets.
ive had this on my g1 as well... but it comes right back... its usually after u pass under a bridge or passover or something...
jonze5 said:
ive had this on my g1 as well... but it comes right back... its usually after u pass under a bridge or passover or something...
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Yes, I've always had that with things like bridges on previous gps devices or sometimes in urban jungles (ie lots of tall buildings), but not 5/6 times in a 1/2 an hour journey in open space.
this might sound silly, but if you have juice defender installed, disable it before you go on the maps app, when i have juice defender enabled, i cant use my gsp
aldaris652 said:
this might sound silly, but if you have juice defender installed, disable it before you go on the maps app, when i have juice defender enabled, i cant use my gsp
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No, I've got nothing like that installed, but thanks for the suggestion. I've had locale or tasker running some of the time, I know they use GPS, but that shouldn't cause loss of the lock.
Anyone having major GPS issues? Seems like it was worse than before. Took forever to get a lock while I was driving, had to stop and turn off GPS/back out of Google Nav, go back in. It got a signal for about 10s then lost it.. with full bars. Anyone else having this problem?
Mine still doesn't work at all. -_-
No problems here ... I usually have it off but whenever I need it, I've always gotten a lock immediately and flawless navigation using Google Maps. Absolutely destroys battery though
Took me 15 min to get a lock on a clear day outside on a fresh reboot and still was off on my location. My touch pro 2 never had this problem.. I could use it inside a building full of metal and still get a lock.. I love the Epic but I would not use the gps in its current state of function for navigation purposes..
Sent from my SPH-D700 using Tapatalk
I think for many, it's still having problems on cold boots. Once it locks, it seems to be fine. I never experienced this though, I only have problems getting GPS signal inside buildings.
nimaim said:
I think for many, it's still having problems on cold boots. Once it locks, it seems to be fine. I never experienced this though, I only have problems getting GPS signal inside buildings.
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No the opposite is true, the problem people are reporting, including those above, are on warm starts where, on occasion, old expired ephemris data is in cache and causes problem getting a lock in otherwise good conditions.
This is much tested and there is a good workaround. By setting the Epic to cold start you overcome this problem, it is stickied as the workaround on the large epic forums elsewhere:
Enter GPS debug/settings application by typing *#1472365#
click "Setup" tab
click "position mode"
Click "starting mode
Enable "Cold Start"
Back out.
Whats the difference between warm start and hot start
mine shows me and my wife in texas half the time and we live in florida, never did it before this update. seems to be picking it up from the wifi I use in my house, as thats ATT and they are SBC and i believe they are in texas, but i never rehooked her phone up to wifi and lattitude shows her in texas at different times and the thing shows me in texas as well, its like cell triangulation doesn't work worth a damn.
nimaim said:
No problems here ... I usually have it off but whenever I need it, I've always gotten a lock immediately and flawless navigation using Google Maps. Absolutely destroys battery though
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^ Same for me. Never an issue and even locks indoors. Yes it eats batteries for lunch though.
Sent from my wrist watch calculator
The GPS is worthless and can not be relied on. Yes, on occasion it does work and on that rare occasion, it seems to work well. However, on the five occasions that I have NEEDED it, it has failed me completely, NEVER locking on my location. These occasions have been outside with clear sky. When I use GPSStatus, it shows 9 sats but 0 lock. I just don't understand how it can see 9 sats and not lock at all. I have a >10 year old POS handheld GPS that with no network, no maps, no anything locks every time within one minute. Samsung must have actually had to try to f--- this up.
Yes I have applied the cold start "fix" and it has made no difference, sometimes the GPS works and most of the time (especially when I NEED it) it does not.
Using the cold start method posted by aero1, my GPS.... sometimes works. Sitting in my car on a clear day with full signal, the GPS can take up to 5 minutes to get a lock. If I'm moving, It will sometimes lock onto me but still say "searching for GPS" so it won't give me driving directions... even though it can see where I am.
In cases when it does work, it lags a LOT. Sometimes it won't update my position for a minute... which is useless if I have a turn coming up that I don't know about. It is always jumping to where I am every few seconds. Google nav on the EVO was perfectly smooth. It stuck with me around turns and never lagged. Always perfectly accurate. It is the only thing I miss from the EVO.
I've completely given up on the GPS and use my Garmin (/wrists) whenever I need something reliable
hydralisk said:
Using the cold start method posted by aero1, my GPS.... sometimes works. Sitting in my car on a clear day with full signal, the GPS can take up to 5 minutes to get a lock. If I'm moving, It will sometimes lock onto me but still say "searching for GPS" so it won't give me driving directions... even though it can see where I am.
In cases when it does work, it lags a LOT. Sometimes it won't update my position for a minute... which is useless if I have a turn coming up that I don't know about. It is always jumping to where I am every few seconds. Google nav on the EVO was perfectly smooth. It stuck with me around turns and never lagged. Always perfectly accurate. It is the only thing I miss from the EVO.
I've completely given up on the GPS and use my Garmin (/wrists) whenever I need something reliable
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Same results I'm having now. Using the workaround (cold start) it's hit or miss whether I get a lock or not regardless of how many sats my phone sees.
I put it to "cold boot" and am still getting shaky results. I used it to find my way back to my apartment but it kept putting me on the road NEXT TO the highway and jumping back and forth. Did this again when I was returning from work during lunch just to see if it happened again. Yep, gonna have to lug around my Garmin from now on.
Just sad.
Try this, weird but is working for me.
I installed an app from the market called GPS test to test my GPS signal strength.
Whenever I launch GPS test and then run google navigation it locks on within 10 seconds. If I don't launch GPS test after a cold boot then it takes forever to lock on.
So far this has been working for me for a couple of days. Might be a fluke though.
othan1 said:
Same results I'm having now. Using the workaround (cold start) it's hit or miss whether I get a lock or not regardless of how many sats my phone sees.
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I've got three epics which allow me to do extensive controlled testing.
before applying the cold start fix my results were as follows on all three when in perfect sat condensations:
a) about 75% of the time no problem with locks
b) about 20% of the time I was getting many sats seen and none locked (expired ephemeris);
b) 5% or less I was getting few sats seen where they should be seen (bad almanac)
I applied cold start method to one Epic and for several days never experienced a failure to lock. I applied cold start to second Epic and now both Epics with cold start applied have gone over two weeks without a single failure to lock. I am now testing some other methods of flushing out cache
Top me this points to main problem being cache which for me ahs disappeared with cold start -- although there are other GPS problems on epic)
Other issues -- not addressed by cold start fix -- are inherent low SNR, SNR thresholds, samsung hacking the difference between fine and coarse results (30 meter hardcoded), these can all cause problems with GPS.
That said there is absolutely a repair of the main cache problem with cold start, I now see my 3g light up every single time I invoke GPS, with non net based applications, reflecting an objective and factual assistance data download --and without cold start I often would see no data usage on invoking GPS meaning failure to pull assistance data.
Anyone else having issues getting a GPS lock? I'm sitting inside a building but my Hero would always lock here, especially after resetting the AGPS data with GPS Status program. Tried that with the Shift, and still not getting a lock even after a minute. Not sure what else to try.
Typically I keep mine turned off, but I just turned mine on and went to Maps and it locks my location in.
mine took a little while to initialize (indoors) but it locked in within 30 seconds.
No issues here. Inside my GFs apartment it locks very quick and is probably about 5-10 feet off according to google maps. My moments GPS never locked or worked so I'm extremely happy with the GPS quality on this phone.
The first lock took around a minute to get. Now it gets a solid lock in just a few seconds, if that.
A little off. Not as bad as my gfs Samsung Instinct, but it does often have me a few hundred meters from my actual location.
-NuAngel
Sent from my PG06100 using XDA App
Me and my girlfriend are having constant problems with the gps lock. Seems to work when it wants and disconnects randomly.
Sent from my PG06100 using XDA App
GPS is spotty for me as well. GPS Status won't even get it working for me when it won't work.
When it does work it is not as accurate as my Heroc was. Hopefully this gets some love in any updates.
GPS is great for me. The only issue I've run into is that when I go from Maps to Navigation, my SD card gets mounted as read-only for some reason.
I know a couple of days ago I tried to use my Google Maps/GPS and it couldn't get a lock on me. It was like going crazy or something. However, it was snowing and kinda foggy so maybe that had something to do with it. It worked the next day though when the sky was clear.
No gps lock on my end either. Also tried the gps status clear....nothing so far
EDIT: just opened maps for about a minute or so and it locked finally. Closed maps then opened again, locked within seconds.
Bumping this thread: I have issues with getting a GPS lock. If I open Google Maps, I'll never get a lock (at least not before the phone goes to sleep - 60 seconds). I open up GPS test, which I downloaded from the market. It gets one satellite to lock right away. Sometimes two. Then it takes forever to get 3-4 more (at least 60 seconds). I can then go into google maps, and it will get a lock within 15-20 seconds. But if I let the phone go to sleep, and open up maps again, I don't get a lock, unless I do the GPS test. And sometimes that doesn't even work. I've done the GPS Clear thing, via the epst codes (##GPSCLRX#), and that doesn't seem to do anything. I'm running the MikShiftG 1.1 rom. I'm going to make a nandroid backup, and see if that happens on a stock 2.3.3 rooted rom.
I received my phone yesterday and gps did just fine. I drained the battery and left it off while charging.
Today my gps won't work, I can't seem to get a single fix anymore (google maps, gps test, mytracks, nothing). I don't know what to do to fix it.
Also my battery drains extremely fast (5 hours and it's dead). Screen acounts for 63%.
I am having similar problems.
mainly with the GPS. it won't get a lock onto the satellites.
very dissappointing.
other than that it's a great phone.
hope it gets fixed with a firmware update soon!
Factory reset first step .
jje
Same problem here.
GPS sees like 10 satellites but just won't lock.
Factory reset does NOT solve the problem. rooted - not rooted does not fix the problem.
Me too, see like 10 satlellites but cant get it lock TT
Just curious, are you guys rooted now? Have been rooted before?
What firmware are you all running? i am on XWKDD. today i upgraded to XWKE1 but didn't have to a chance to see if it fixes the GPS issue just yet.
Same problem here, sometimes I have 10 satellites but it just won't get a fix, no root here.
I get a fix within a few seconds of firing up the GPS, every time.
Even in my rucksack the GPS tracked me for an hour and a half, within a few metres accuracy, whilst cycling a few days ago, no problem.
Shocky2 said:
Same problem here, sometimes I have 10 satellites but it just won't get a fix, no root here.
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I assume you're trying this outside without major obstructions around.
I would turn off: wifi, "Use wireless networks", and "Use sensor aiding". Run GPS Status. Under Settings > Tools > Manage A-GPS state, press Reset, then Download.
See if that helps.
Sensor aiding
samnada said:
I assume you're trying this outside without major obstructions around.
I would turn off: wifi, "Use wireless networks", and "Use sensor aiding". Run GPS Status. Under Settings > Tools > Manage A-GPS state, press Reset, then Download.
See if that helps.
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Can you explain to me what 'sensor aiding' actually does, as it's not really clear on the settings menu?
robot1000 said:
Can you explain to me what 'sensor aiding' actually does, as it's not really clear on the settings menu?
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I don't know anything more than the description it shows under Settings. I've seen theories that it uses the accelerometer, say for instance if you're driving through a tunnel. My experience is it makes my GPS accuracy worse rather than better, so I don't use it. But I'd suggest trying it both ways on the S2 to see if it makes a difference.
I went here:
http://www.google.com/mobile/navigation/
did a search on "sensor aiding" and got zero hits, so it seems Google doesn't want us to know what it is either.
usually over 50% of what people reporting that it isn't working is down to user error.
Have a look at this vid and do what this guy does on his SGS II. And see if it works for you
http://www.youtube.com/watch?v=JZzJyKtPkHw&feature=player_embedded
samnada said:
I assume you're trying this outside without major obstructions around.
I would turn off: wifi, "Use wireless networks", and "Use sensor aiding". Run GPS Status. Under Settings > Tools > Manage A-GPS state, press Reset, then Download.
See if that helps.
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Click to collapse
Yes I've done all that and yes I'm trying this outside, 10/11 sats in view but no fix.
Today i upgraded to XWKE1 and giv it another try. I have to wait around 4 minute and it get gps fix !!
himarmy said:
Today i upgraded to XWKE1 and giv it another try. I have to wait around 4 minute and it get gps fix !!
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So, is that the new normal with your phone? Are locks working faster now, or do they typically take minutes? Is the accuracy ok?
It is odd that there are such differences between individual phones. If problems continue I would get it replaced if possible.
dk206 said:
usually over 50% of what people reporting that it isn't working is down to user error.[/url]
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Really? How did you calculate that number?
Still same problem here. It takes full minutes to get a lock. Not sure what else we can try to fix this.
Sent from my GT-I9100 using XDA App
Having problems here too. tested today on the way to the supermarket, got a lock within a couple of minutes and worked fine for the duration of the journey. Didn't get a lock all the way back, GPS was definitely turned on, even stopped halfway home to reboot the phone and try again.
Just taken my wife's iPhone 4 outside which locked within 30 seconds, still can't get a lock at all with my GS2.
I've installed that GPS status application, but doesn't lock on to any satellites (at least not within two or three minutes anyway)
Not impressed
siksik6 said:
Having problems here too. tested today on the way to the supermarket, got a lock within a couple of minutes and worked fine for the duration of the journey. Didn't get a lock all the way back, GPS was definitely turned on, even stopped halfway home to reboot the phone and try again.
Just taken my wife's iPhone 4 outside which locked within 30 seconds, still can't get a lock at all with my GS2.
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Forget Apple, if you want "real results" grab a Nokia E-Series like the e71 or e72.
You get like 2 second instant lock, and that's indoors!...
ccrows said:
Forget Apple, if you want "real results" grab a Nokia E-Series like the e71 or e72.
You get like 2 second instant lock, and that's indoors!...
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This thread, and posts like this, are what make me so frustrated with Samsung over the GPS issue. They never fixed the SGS, and now with their flagship top-of-the-heap phone they still can't get it consistently right. Even the best reports I've seen on the S2 don't match what some other phones are clearly capable of. It's hard to imagine Samsung is truly technically incapable of making GPS work, so I have to conclude it's just not worth the cost to them. They sold 14 million SGS's, with abysmal GPS, so they've apparently decided most don't care if it works well or not. They may be right, but for some of us it's one of the absolute key features. Very disappointing. Maybe HTC will get it right on the Sensation...
So I bought a new (to me) T2 for one reason: to use as a hiking GPS. With a shatter proof screen, gigantic battery, and a LifeProof water-tight case I figured for around $170 I can get myself a top-of-the-line GPS for 1/2 the price of a half-as-good Garmin unit. The thought was to stick a 32gb card in it, freeze all the moto and google crapware, install Backcountry Navigator (BCNAV) and call it a day.
Well, that is not working out so well for me. The GPS is struggling maintaining a lock especially when running in the background in the my pocket. This was at 11000 ft elevation with wide open skies above me, no canyons or ravines in sight. Quite often I would pull out the phone and see the message "searching location" on the lock screen. The track recorded by BCNAV was choppy and reflected the occasional loss of GPS position. My Nexus 6P in contrast had no trouble maintaining a GPS lock the entire time. In fact, I am looking at the T2 screen right now sitting on my desk next to by 6P and after turning waking it up it was displaying "searching location" for about 15 seconds before it found a lock.
What is your experience with the T2 GPS lock? Is there something I can do to prevent the GPS "going to sleep" in the background?
The GPS is AGPS, if there is no internet connection, it can take a long time to get a lock
How's that side by side test on your desk work out if you connect the DT2 to wifi for Internet access?
mjones73 said:
How's that side by side test on your desk work out if you connect the DT2 to wifi for Internet access?
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Still issues with DT2. May have been due to Greenify though, I had turned on aggressive doze. Have not tested without it yet, will do so in the coming days
I have Force (T2 for non USA countries) and GPS works perfectly. Just recently I've figured out (when someone asked for GLONASS) that AGPS hasn't been updated for more than a month and GPS worked flawlessly. Locking in few seconds even when changing continent. Didn't have problems with GPS during hiking in the woods either.
Yup, it is aggressive doze
http://forum.xda-developers.com/apps/greenify/aggressive-doze-kills-gps-app-t3453283
No problems with GPS since disabling aggressive doze in tasker. Since I am using the phone mostly as a GPS will probably disable aggressive doze in Greenify all together.