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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.
It seems that the majority of people have absolutely no GPS issues. But I notice every time that I factory reset, I can't get a GPS lock, which is absolutely weird. I can't acquire location on GenieWidget either initially. If anyone else out there is having GPS issues or Location issues then try this.
How to fix for both:
1. Download GPS Test from the market (the free one)
Run it, and leave it running until the GPS On light turns green and it has satellites in use and tells you the meters accuracy. That means a lock. This can take a few minutes.
After this happens, GPS locks very quickly even after reboots, very weird.
Now even after this, GenieWidget still can't acquire location.
2. Turn on WiFi, but don't connect to anything, you don't have to.
When WiFi is on, go back to the GenieWidget and hit refresh.
It'll find your location even though you're not on a WiFi network.
Now disable WiFi and it'll be able to acquire your location every single time.
Weird stuff.
damn... sounds like Samsung is STILL failing with LBS. It's very frustrating on my Captivate.
I turned it on before and got a fix in about 45 seconds. About the same time as my Slide.
skinien said:
damn... sounds like Samsung is STILL failing with LBS. It's very frustrating on my Captivate.
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It's a one time issue though it seems. I think actually it all depends on getting that 'first' lock. The phone will go to sleep if you wait on maps too long. So I just use that app, go into settings, and hit Keep Awake then leave it sit til it locks. After that, I can get a lock in 1-5 seconds every time after reboots upon reboots.
It locks just as quick as my Evo, 10-15 seconds for me. I use my GPS so much if its not getting a good lock I would return the damn thing over and over until it work how it should. Even 45 seconds is a stretch...my G1 locks faster than that...
Anderdroid said:
It's a one time issue though it seems. I think actually it all depends on getting that 'first' lock. The phone will go to sleep if you wait on maps too long. So I just use that app, go into settings, and hit Keep Awake then leave it sit til it locks. After that, I can get a lock in 1-5 seconds every time after reboots upon reboots.
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Quite right. There's a big difference between "cold" and "warm" GPS startup.
When the phone is brand new, or after a hard reset, it will always be a "cold" start. The phone has no clue about where it is in the world, or even if it has the correct time. So the very first thing it does is to look around and try to spot any GPS satellites. Then it tries to download the almanac data.
For GPS to lock, quite a lot of data needs to be downloaded from the satellites. This takes between 30-60 seconds uninterrupted view of at least 3 satellites. If you're moving around, the view of the satellites may be interrupted, and the phone will have to start over again. This process can be speeded up a lot with A-GPS.
After the first lock, things go much faster. The almanac data is already on the phone, and the position of the last GPS fix is known.
The thing that confuses most people is that an Android phone will try to navigate by other means when there's no GPS lock. By cell tower, or by WiFi hotspot. Cell tower gives your location instantly, but with a very large margin of error. If your position is way off, then you're not navigating by GPS, but by other, less accurate means.
I actually can't get location from the cell towers >.< But yeah my GPS is locking in 1-5 seconds now.
Still no luck with above... will not turn green just stays yellow
Ok so my problem is whenever I leave my phone on for an extended amount of time the gps just will not lock at all but after I reboot the phone it locks within a couple of seconds. This has been happening with each radio Di01, dj05, and Dl09. I was just wondering if anyone else had this problem and whether or not it is a hardware problem?
Nope. With DI01 I had issue where it took forever to lock, if at all. With DL09 I have no issue at all. Connects quickly and just works.
Sent from my SCH-I500 using XDA App
yeah. I thought I was the only one noticing that.
If I go into the gps setup (Dial: *#1472365#) and then go to command and start the gps, if the phone has been running for a long time, it will just sit there and say Number of Satellites: 0
But if I reboot, it starts finding satellites immediately and gets a fix super quickly.
Di01 was a nightmare with GPS locks...took upwards of 10 min or so. With dj09, I lock within 5 seconds max.
Sent from my SCH-I500 using XDA App
anyone notice even though the GPS locks, it's off by a lot? went back to DJ05 for now....on the wife's Fascinate
I may be seeing the same thing as you Jaybap. Can you elaborate what a "long time" is since boot that you're seeing? 12hrs? 2 days?
I had horrendous issues w/ GPS on OEM DI01 prior to playing around with Adryn's local xtra.bin solution. I'm now on OEM DL09 and for a day or so after the install GPS would lock w/in 10-15 seconds outside. I leave GPS and VZ Assist on all the time. Accuracy is dead-on for me. I'm using GPS Test and GPS Status apps for testing.
I am now noticing that after some amount of time (at least more than 24-36hrs after installing DL09, no boots since install) that my GPS tests took longer to lock (>1 minute). The GPS icon in the notify bar wouldn't animate while searching for satellites and at one point GPS Status seemed to hang/freeze (no FC). So after i saw this thread I booted the phone. Now the GPS icon animation is back when initially searching for satellites and i get a lock in 10-15sec. So ya might be onto something...
BTW - I'm guessing the GPS icon animates when searching for satellites; becomes a static icon once a lock is achieved.
How do I dl and install DL09?
Having GPS capability was one of the reasons I upgraded from a non-smartphone to a smartphone. Just my luck that the smartphone I choose has serious GPS issues.
How might I go about dling and installing this fix for the GPS?
Thanks.
keena It's the same way with my phone the gps icon stops animating and this occurs after i leave my phone on for a few hours and it takes minutes to lock when it used to take seconds.
I have the same issues. I can get a lock in seconds after I reboot, but if my phone has been on for more than 10 min getting a lock can take as long as 45 min or more, if at all.
Sent from my SCH-I500 using XDA App
Did you guys get your phones in September because I have a feeling they launched some of these with faulty hardware and that's why these updates aren't helping us.
Jaybap said:
Did you guys get your phones in September because I have a feeling they launched some of these with faulty hardware and that's why these updates aren't helping us.
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Yeah, I nabbed mine on October 1st, so basically September.
But I'm still wondering if it's software related. Like maybe one thing (app? system?) in the background is trying to access the gps and won't let go of it for other apps to use.
Also, possibly unrelated: are you guys using Task Killers at all?
I also have the same issue as the OP. The only time I ever reboot my phone is right before I use Runkeeper... otherwise the Gps never locks.
I'm on dj05 using jt's clean rom & voodoo.
Sent from my SCH-I500 using Tapatalk
I bought my phone the 2nd week of December. I don't run any task killer or battery minder apps...basically just a rooted OEM DL09.
I noticed that if you turn on the GPS and leave it on all the time. It will always lock on fast whenever you turn on Google Navi/Maps. If you turn on the GPS, turn it off for a while, and later, turn on Navi, it will sometimes take forever to lock on.
So I the only thread I found on this was really old with no resolution so I'm starting a new one.
My gps will show like 0/24 on gps status immediately and not fix any. Earlier I got 2 satellites to fix ad that was all. This is outside in my car with a clear view of the sky. has anyone had any luck fixing gps issues?
Sent from my VS980 4G using XDA Premium 4 mobile app
th3drow said:
So I the only thread I found on this was really old with no resolution so I'm starting a new one.
My gps will show like 0/24 on gps status immediately and not fix any. Earlier I got 2 satellites to fix ad that was all. This is outside in my car with a clear view of the sky. has anyone had any luck fixing gps issues?
Sent from my VS980 4G using XDA Premium 4 mobile app
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Are you using the GPS Status app (developer MobiWIA)? I ask since that app allows you to add all the extra details in the notification bar while the GPS is searching for a lock. If so, have you tried getting a GPS lock in any other app (like Maps)? I can get a lock in all my other apps, as well as other GPS diagnostic app EXCEPT for the one developed by MobiWIA for some reason. I keep it installed though as I like to see the status in the notification bar.
I'd suggest downloading the GPS Status app if you already don't have it (the MobiWIA one), and go into Menu > Tools and click on Manage A-GPS State. Then click on Clear Cached GPS Data. Then click on the button that says Download Additional Files (well, says something similar to that). Then open up a different app and see if you can get a lock. I had to clear my GPS data and download those additional files before I could get a timely lock as well, but now I get a lock within 10 seconds while inside the house. This assumes that you haven't rooted tour phone. If you're rooted, you can do all this (and more) manually. Just clear GPS Cache and Data, and open up /system/etc/gps.conf to add any additional servers to the list, as well as tweak other GPS setting.
ya i tried those before, it's acting even dumber now, the top bad with the gps icon is solid indicating a lock. However any gps status app that I use will show no satellites locked. I get it to lock a couple after sitting there for a while on gps status sometimes though but its really shady
My past g2 did that, I returned it. Got a replacement, afraid to even root this beast.
unfaix said:
My past g2 did that, I returned it. Got a replacement, afraid to even root this beast.
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so after you replaced it the problem was solved?
Same issue. The GPS on this phone sucks. It'll be 4 miles off sometimes and that's even if I can get it to lock.
Sent from my VS980 4G using Tapatalk
Looks like the Verizon G2's GPS reception was compromised with the addition of wireless charging. T-mobile D801 here and I get a lock within a few seconds indoors.
th3drow said:
so after you replaced it the problem was solved?
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Nope, still as ****ty as ever.
Although it doesn't happen as often, it still more often than others.
I'm past the remorse period.
So yeah.
Here's one from yesterday where I needed to get directions while driving, it locked but didn't do jack ****.
unfaix said:
Nope, still as ****ty as ever.
Although it doesn't happen as often, it still more often than others.
I'm past the remorse period.
So yeah.
Here's one from yesterday where I needed to get directions while driving, it locked but didn't do jack ****.
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Well I guess atleast that means it most likely isn't completely hardware related.
Mine (T-Mobile) locks in just a few seconds, even indoors!
I always have data on, so it makes the process even faster (A-GPS makes use of the cellular antennas to acquire a lock faster). It works really well actually. I have at times the GPS off and even then, my location gets pin-pointed very quickly!
Cheers!
I have the GPS lock issue sometimes. What I have found to work for me is I turn airplane mode on let it sit for a second, then turn airplane mode off. By the time airplane mode is off and BT, LTE/CMDA signal notification are coming back to life my GPS has a lock and is working like it should.
YMMV on this, but it does work for me.