Nexus is unlocked and rooted. I get slow or poor locks with GPS status. Does this happen to anyone else?
I've only had the phone for a day, so I can't say that it was working well before or not.
I just opened Maps to test...I'm on a moving train and it locked on to me in about 7 seconds
Sent from my Nexus 5 using xda app-developers app
Compared to my Samsung S4, N5 gps lock is not as fast or strong in hardware only mode. It's workable but nothing remarkable.
My first lock (cold fix) took 23 seconds, Hot fixes are between 2 and 5 seconds. About 24 satellites in view, locks on to 11-13. I've done these "tests" at a window not outside... I can't say I'm not happy with it
update- I was able to get a lock this morning and it seems to lock a little faster. I know it's common with some phones that the first lock after reboot is the longest.
I'll keep an eye on it.
Related
Took a 300 mile each way car trip over the last 2 days. I had my Captivate and 4 year old Tom Tom XLS with 9 month old update. We didnt need the Tom Tom until about 10 miles from our destination. Turned it on at the same time as opening Navigation on the Captivate. It took around 5 minutes for them to get a satellite lock. The interesting thing was they locked at EXACTLY the same time.
Now, the Tom Tom (TT) usually locks in 30 seconds or less if I turn it on near home. If I'm over say 100 miles from home it takes several minutes to lock on. I had heard this is due to the TT looking for the same satellites or number of satellites as when it was last locked on.
So that said, when we were leaving, I turned on the TT and Captivate and did the same thing. TT locked in about 30 seconds, Captivate in about 5 minutes. When we were 100 miles from home I turned off the TT and Captivate. Turned on again at home and they both took exactly the same time to lock on again - about 5 minutes.
I noticed a similar lag with my Tilt 1 if I didnt download the quicksat updates. If they were installed, the thing locked on very quick.
So could the Captivate have no historical data of the last lock and thus is always trying to track and locate satellites that are not visible, gives up then locks onto new ones?
Am I smoking something?
With everyone complaining about the gps, I have had absolutely no trouble with it. Being very inaccurate with the famous blue circle around it is only when it does not have a CLEAR view of the sky. I bought a holder that sticks on the windshield and it locks on in about 2-4 minutes, and it deadly accurate from there. I have the cheap tom tom and the captivate is just as accurate as the TT. Actually locks on faster than my TT if Im moving. I've tested it a lot to see if I can have trouble, but unless I block its view.... I have 100% reliable operation out if it.
klloyd said:
With everyone complaining about the gps, I have had absolutely no trouble with it. Being very inaccurate with the famous blue circle around it is only when it does not have a CLEAR view of the sky. I bought a holder that sticks on the windshield and it locks on in about 2-4 minutes, and it deadly accurate from there. I have the cheap tom tom and the captivate is just as accurate as the TT. Actually locks on faster than my TT if Im moving. I've tested it a lot to see if I can have trouble, but unless I block its view.... I have 100% reliable operation out if it.
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2-4 minutes sucks bad for locking and needing a 100% clear view of the sky is also bogus. What happens if you don't live in the flat rectangle known as Kansas? The GPS on these flat out sucks. I have a 10+ year old "cobra" handheld GPS that locks faster and holds lock / is more accurate.
I live in that flat rectangle, and it still would get lost.
OP
I think you are on the right track. In addition to othe issues with the gps, such as incorrectly intrpreting the time zone and having GMT 5 hours off, regardless what other people say, it seems to be starting in"cold" mode always, whic means it needs to download all the positional data first, determine the satellites positions and the attempt to get a fix. This takes about 5 min in any gps, simply because the transmission rate of the gps satellites is very low.
Your tomtom attempts to take a shortcut assuming it's not too far from where it was turned off last time. If true, it can get a fix in 20 secs or less, if false, it would take 5 min.
Sent from my SGH-T959 using XDA App
Mine always locks in within 20 seconds, whether I am moving on stationary, hot start or cold start. I've even tried turning it on 100s of miles from my usual location and still locks and holds while driving to 32ft accuracy. I am already on my second captivate, the first one liked to turn off randomly. The first one didn't have a gps problem either.
I did do the supl.google fix to both though. They were slow with factory settings.
Under LbsTestMode do you have it set to HotStart and MS Based?
Sent from my SAMSUNG-SGH-I897 using XDA App
jmgelba said:
Took a 300 mile each way car trip over the last 2 days. I had my Captivate and 4 year old Tom Tom XLS with 9 month old update. We didnt need the Tom Tom until about 10 miles from our destination. Turned it on at the same time as opening Navigation on the Captivate. It took around 5 minutes for them to get a satellite lock. The interesting thing was they locked at EXACTLY the same time.
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I did notice the same thing when I was on a trip in Wyoming two weeks ago. I hadn't turned on either GPS (in this case the car one was a Garmin) and when I did both locked at the exact same time (probably after about 3-4 minutes after turning them on). It was quite surprising because I thought the Garmin would go much faster than my Captivate, but this was not the case.
I was extremely lost last night in the city with buildings all over on a cloudy night. Gps found me and directed me in about 1 min coming from a car garage .
I've noticed it locks faster if you back out of Google maps while its finding your location and go back in. It seems to get a lock quicker. Same goes for navigation, I enter a destination and hit navigate, if it don't find a lock within say 10 seconds like it usually does for me ill hit back once and then navigate again. Then it usually finds a lock fast almost instantly ..
I do get the blue circle while navigating sometimes , but it moves along perfectly . Ill even just use google maps without the navigation and watch myself move on the map nicely...
I usually get from 4 to 7 satellites out of 12 or so.
Works for me, if it can be better cool, but its done me well so far can't complain too much.
I tried using it last night. Not sure how many satellites it locked on to, but it did give me the accurate to 5 meters message in Maps.
That said, it was ever so slightly off (probably 6 or 7 meters instead of 5) and my compass is blown. Even after calibrating it, its still a few degrees off (15 - 20 maybe?).
Has anyone given the GPS a good test yet? Mine locks really fast, but I haven't gotten a chance to take a drive with it yet.
My first one did that, locked but still had the radius circle. This second unit locks in within an acceptable 5-10 seconds and is locked in.
Sent from MyTouch 4g via XDA App
Mine's taking significantly longer to lock than the G2, and even then it updates position far less frequently (sometimes taking 15 seconds between updates) - on the same stretch(es) of road, with clear view of the skies. Might be a dud?
-Moorebid
ok, i got to test it today and i'm impressed coming from the vibrant. Accuracy ranged from 6-20 ft while moving along the highway. I never got below 30ft on my vibrant.
So my gps works and gets a lock, just a little slower than other phones (5-10 seconds). When navigating, it is also usually a few seconds behind (ie, I turn on road 1 and 2 seconds later, it tells me to turn on road 1).
Has anyone used the galaxy s gps fixes on the nexus?
Sent from my Nexus S using Tapatalk
You may wanna try browsing this thread if you havent already, im sure they may have covered it
http://forum.xda-developers.com/showthread.php?t=875342
I came from a Vibrant and the GPS is so good on this thing I don't want go make any changes.
Sent from my Nexus S using XDA App
So has anyone tried?
Sent from my Nexus S using Tapatalk
hah2110 said:
So has anyone tried?
Sent from my Nexus S using Tapatalk
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....the GPS fix isnt needed
Out-of-the-box GPS devices typically need 15 minutes to get a lock for the very first time. The whole point of A-GPS is to shorten that time.
http://en.wikipedia.org/wiki/Time_to_first_fix
After acquiring a satellite signal, the receiver can begin to obtain approximate information on all the other satellites, called the almanac. This almanac is transmitted repeatedly over 12.5 minutes. Almanac data can be received from any of the GPS satellites and is considered valid for up to 180 days. Manufacturers typically claim the factory Time To First Fix to be 15 minutes.
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Of course old devices get a quicker lock than factory-new devices. The old device already has the necessary data, the new device has to start from scratch.
GPS lock in less than 30 seconds is actually impressively good. If you feel that this is too long, then you don't need GPS, you need magic.
And don't even think about returning the phone (or even complaining) before you have tried to get a fix for 30 minutes without any success. Standing still, outdoors, with a good, unobstructed view of the sky.
You guys can say what you want. I have had 10+ Android phones and [besides the Vibrant] have never had this bad of a GPS experience. It is slow to lock on (~10 seconds) and is constantly behind during navigation.
hah2110 said:
You guys can say what you want. I have had 10+ Android phones and [besides the Vibrant] have never had this bad of a GPS experience. It is slow to lock on (~10 seconds) and is constantly behind during navigation.
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Seems you're the exception rather than the rule. My Euro Galaxy S and vibrant sucked regardless. NS is immediate and accurate to single digits typically. Could not be happier with the GPS on this device.
hah2110 said:
You guys can say what you want. I have had 10+ Android phones and [besides the Vibrant] have never had this bad of a GPS experience. It is slow to lock on (~10 seconds) and is constantly behind during navigation.
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This post reminds me of Louis CK's bit on impatient people.
What kind of navigation software?
I found this kind of lag is the navigation software issue.
I am using Sygic Aura on HTC Desire, it is also sometimes behind few seconds than the actual situation. Then I turned off the POI display (it is useless anyway on Sygic Aura), and now it is OK (much better).
In the past, certain version of TomTom also has this kind of lag on my HTC Kaiser WM.
hah2110 said:
You guys can say what you want. I have had 10+ Android phones and [besides the Vibrant] have never had this bad of a GPS experience. It is slow to lock on (~10 seconds) and is constantly behind during navigation.
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As I'm waiting for my Nexus 5 I'm interested on GPS performance of this new phone. Anyone can take a screenshot showing GPS signal and how much does it take to lock in?
GPS Test on Play Store
Anyone?
No one? I'm guessing it uses, glonass gps.
Sent from my SPH-D710 using XDA Premium 4 mobile app
Mine took 10 seconds to get a lock on (19 in view, 11 in use) after clearing aGPS history in the app. This was done indoors about 5m from a window.
Hardly scientific, but hope this helps!
Sent from my Nexus 5 using xda app-developers app
Is anyone experiencing long delays (2+ minutes) while waiting to get a lock (subsequent locks are faster)? And once a lock is achieved, the accuracy is about 30 meters? Lock should only take a couple seconds, accuracy should be 10-20 meters, right?
GLONASS
Does Nexus 5 has GLONASS sensor?
Aerowinder said:
Is anyone experiencing long delays (2+ minutes) while waiting to get a lock (subsequent locks are faster)? And once a lock is achieved, the accuracy is about 30 meters? Lock should only take a couple seconds, accuracy should be 10-20 meters, right?
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no problem here.
indoor lock (near a window) takes less than 30 second, 23 sats in view, 14 locked, 5-10 meters precision.
Aerowinder said:
Is anyone experiencing long delays (2+ minutes) while waiting to get a lock (subsequent locks are faster)? And once a lock is achieved, the accuracy is about 30 meters? Lock should only take a couple seconds, accuracy should be 10-20 meters, right?
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I get long delays, and sometimes it doesn't lock at all.
Same here. Very long lock delays every time.
Sent from my Nexus 5 using XDA Premium 4 mobile app
Same Problem here.. Sometimes it only locks to five and the accuracy is bad.. Notably while playing ingress today
i went out running with mine last night, the gps was terrible, had it on high accuracy as well, nowhere near as good as the N4 or S3
I find it locks on very quickly. Fat far quicker than my old galaxy nexus
Sent from my Nexus 5 using Tapatalk
What is the difference?
So some of us are getting poor GPS on the N5 and others are getting great response as you would hope.
What is the difference? I got mine early out of Hong Kong and I am getting the slow variable quality lock.
In case it is relevant my build no is KRT16M, Baseband vers os M8974A-1.0.25.0.17 and Kernal vers is 3.4.0-g9eb14ba.
Happy to provide anything else if relevant.
Of course it might be something mis configured at my end, but there seems to be a group with poor experience.
Not as fast or stable as my Samsung s4
Very fast. About 10 secs or less.
Sent from my Nexus 5 using xda app-developers app
I noticed that mine is very slow indoors, but works faster outdoors. It still take a few seconds to lock.
I was driving in Salem, MA last night and constantly losing GPS signal. It was a clear night, and I'm not aware of anything that should have interrupted signal. I was streaming some music and connected to my car's head unit via bluetooth, neither of which should have affected it.
I used it the other day to find a hobby shop. It connected in about 10 seconds, I only had to go about 3 miles but it was perfect.
As long as I'm not hiding it under my desk of electronics, it gets a lock indoors in about 3 seconds, and resolves all the way down to about 10 feet of accuracy in less than 10 seconds. I haven't had it lose GPS once since I've gotten it on Tuesday, and I've used it every single day several times.
Vincent Law said:
As long as I'm not hiding it under my desk of electronics, it gets a lock indoors in about 3 seconds, and resolves all the way down to about 10 feet of accuracy in less than 10 seconds. I haven't had it lose GPS once since I've gotten it on Tuesday, and I've used it every single day several times.
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Good to know I rely on gps n wifi tether on att ... cant wait for ups to deliver it already
Right now I have a note 3 and I use GPS daily the problem is it sucks on my note 3. It will lock on for a while then just stop mid route. So how is it on the nexus any heavy GPS users in here??
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I've read some complaints about the GPS on the N5, but every time I've used it it has locked on extremely fast and never lost signal. It's the first phone I've had with a consistently good GPS, I've had other phones that locked on quick sometimes and other times could take up to several minutes.
Sent from my Nexus 5 using xda premium
My N5 GPS is wonderful. I get 10ft accuracy all the time, very similar to former galaxy S3. I had a crappy experience with Optimus G Pro which never had accuracy better then 33ft and would take 30-1min to lock in the GPS. the N5 GPS locks in immediately and has worked great even in Boston around tall buildings.
95Z28 said:
I've read some complaints about the GPS on the N5, but every time I've used it it has locked on extremely fast and never lost signal. It's the first phone I've had with a consistently good GPS, I've had other phones that locked on quick sometimes and other times could take up to several minutes.
Sent from my Nexus 5 using xda premium
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I have had 2 Nexus 5's already... and although they do lock extremely fast, they drop their lock at random... both phone displayed this behavior. i am a heavy Wazer and CAMSAM user...
Dead on for me (6 ft), also when driving i don`t loose my position.