[Q] Anyone Elses GPS Aweful? - Eee Pad Transformer General

I have never had my GPS locate me via google maps. My Phone has no issues. Anyone else have GPS issues? any tips? Hopefully a software update fixes it? I have a friend who has the same issue.
[Should have read "awful", not aweful]

Nothing wrong with my gps. Have you upgraded to the latest firmware? Downloaded the A-GPS data (you can get this by using an app called GPS status)? Switch OFF wifi after you do, then leave it to get a full signal lock (takes up to 15minutes or so with a clear view of the sky).

toddmp said:
I have never had my GPS locate me via google maps. My Phone has no issues. Anyone else have GPS issues? any tips? Hopefully a software update fixes it? I have a friend who has the same issue.
[Should have read "awful", not aweful]
Click to expand...
Click to collapse
Make sure you are outside with a clear view of sky when you test. It can take any GPS up to 10 minutes to acquire the ephemeris information (satellite position at a certain time) and lock up. You phone cheats this by using the cellular network to provide a general location of where your are and therefore where to look for certain satellites.

thanks so much for the info guys. I had a feeling it had something to do with no cell phone band helping out. thanks!

GPS works fine here, as other have said the closer you are to the sky/window the better.

yeah..give your TF a few minutes to lock up sat positions (if you've never done this)..
this applies to most pure gps devices..cellphones can use cellular network signal to quickly locate your position but the data isn't really from gps itself.

http://forum.xda-developers.com/showthread.php?t=1088120
Hope this helps
Acid lestitious 2.0. Fugumod 2.4 800 mhz

jerrykur said:
Make sure you are outside with a clear view of sky when you test. It can take any GPS up to 10 minutes to acquire the ephemeris information (satellite position at a certain time) and lock up. You phone cheats this by using the cellular network to provide a general location of where your are and therefore where to look for certain satellites.
Click to expand...
Click to collapse
I wonder if it does the wifi cheat like maps for android phones, where it uses the known APs to determine location? I say that because when I first fired up my transformer yesterday, after connecting to wifi, I screwed around on maps and it found me inside my house in less than 30 seconds.

toddmp said:
I have never had my GPS locate me via google maps. My Phone has no issues. Anyone else have GPS issues? any tips? Hopefully a software update fixes it? I have a friend who has the same issue.
[Should have read "awful", not aweful]
Click to expand...
Click to collapse
its the reverse for me! in the same room of house i often cannot get a fix on my Optimus 2x. i use GPS Staus app. but i often get fix within 30secs. as a test i have both machines running the app next to each other and the transformer always gets regular fixes.
..... hmm just realised as i type this that i have a phone called optimus and tablet called transformer, and they both run android!!!

I get fixes with no wifi (ie: only GPS) within 30 seconds.

Quite the opposite, mine is extremely accurate. After it gets a fix on maps that little google person is standing right in my front yard in the satellite view! Better than my Droid!

Mine is almost instantaneous. Just tried it at home based on this thread and had a read in probably 5 seconds.

I have not been able to obtain a GPS lock until today when I set my location to use wireless networks. To me this is really stupid because the GPS shouldn't have to use any location settings to obtain a lock in my mind. That is if the GPS chip in the TF is a true GPS chip it should not to rely on a wifi signal to obtain a lock. If the GPS is turned on then it should lock.

I tested sygic gps navigation 11 and signal lock and quality was better than my galaxy s was pretty accurate
Sent from my Transformer TF101 using XDA Premium App

Works fine for me, apart from one minor detail. When I switch from Google Maps to another app, even for a few seconds, then the tablet has to get a lock all over again. There appears to be no way to set the GPS to keep a lock while Google Maps isn't the active program.
That, for me, makes Google Maps near-useless in a moving vehicle. Hopefully other third-party apps won't have this issue.

Google Maps is prety much useless on the Transformer for GPS navigation as a data connection is need. I have heard of people caching a route before hand but ..... Copilot Live 7 is out for android so that is one option. However if the GPS relies on a wifi signal in order to obtain a lock then it is about useless too.

toddmp said:
I have never had my GPS locate me via google maps. My Phone has no issues. Anyone else have GPS issues? any tips? Hopefully a software update fixes it? I have a friend who has the same issue.
[Should have read "awful", not aweful]
Click to expand...
Click to collapse
Gps works fine on mine....unlike my icons or Samsung...both returned

gps does use wifi to help gps locate, theres options to turn this off in settings, i went to pick up my dock today and couldn't get a gps lock while in the car with the transformer in my lap(gps status app showed 3 sats but none would lock) just lifting it up 12 inches closer to the windshield made 7 satellites pop up and instantly started getting locks
i think proximity to a window/line of sky is a big factor, and the transformer does have a true gps chip for those who seem to doubt it, also the navigation app keeps running in the background, its better to use that than google maps

No issues with gps here. The bastard finds me every time!

jadesse said:
However if the GPS relies on a wifi signal in order to obtain a lock then it is about useless too.
Click to expand...
Click to collapse
It doesn't rely on WiFi for a lock, it just uses it to allow a faster connection if you don't already have current ephemeris data downloaded. That's a limitation of all GPS receivers -- it takes a fair while to download the ephemeris data if you're out of date or have travelled a significant distance, and without it the device can't get a GPS fix.
You can think of the WiFi location system as analogous to a cellphone being able to use tower locations to help position itself while waiting for GPS ephemeris data.

Related

HTC Snap, GPS not detecting satellites

I can't get a satellite lock on my HTC Snap.
I have enable "use GPS" in google maps. google maps will search for satellites and after sometime come back saying weak signal & some recomendations to look for clear view of the sky.
Garmin XT also can't search GPS satellites. I install GPS Test, it seems that there's a GPS hardware but somehow the signal reception is super weak.
I have sent my Snaps to HTC service center and the best thing they can do is change the mainboard. This also show no result.
Anybody, please help. i'm starting to get frustrated with this GPS issue...
Bing GPS
I use the Bing app and have similar issues establishing GPS signal. This is my first GPS device so I'm not sure if this is normal, or if the phone is crap for GPS, or if I'm doing it wrong. I try to keep the QuickGPS updated, but that doesn't seem to help. I thought AGPS was supposed to be fast, but faster compared to what? Maybe this is 'fast' for GPS. I have seen friend's full on GPS devices and they seem to pickup pretty quick. So... who knows?
One thing to definitely try is make sure quickgps is up to date and automatically downloading. garmin could NOT find my location without that up to date and it would show one red bar signal strength. once i loaded up quickgps, updated it, and ran garmin again, full green signal.
It's The GPS Hardware ...
I've tried it all with my Dash 3G -- and concluded that it's the GPS in the phone that is garbage. I've since switched back to my trusty OnCourse Bluetooth GPS and I get a lock in Google Maps in less than 30 seconds and in Garmin XT in less than 10. IMHO, the GPS is certainly a weakness on this phone.
It finally sunk in for me when I lost signal 9 times while walking a few miles down Beacon Street in Boston. Holding the phone in my hand it kept dropping the signal over and over again. So I gave up. Built in GPS is handy in a pinch (when you have 30 minutes to wait for it to find a signal) but for serious navigating I use my Bluetooth GPS exclusively now.
No true at all. the gps in the Ozone is amazingly fast.
drewcam888 said:
No true at all. the gps in the Ozone is amazingly fast.
Click to expand...
Click to collapse
I completely agree. Simply because something is not working like it should for these others does not mean that the GPS is not good. I use garmin xt with my ozone and its is extremely fast at updating my position as i'm driving along.
Problem solved
Let say that i'm in a really bad luck. this is my first GPS device and its not working. After the 2nd time come out from the service center (2nd concecutive mainboard), then the GPS is functioning, normaly....
my maple can get lock on GPS signal quite fast. with AGPS updated, it can get signal lock within seconds (given you have a clear sky view). i found that it could takes some time for Garmin XT to get GPS signal, so I use GPS Test to speed up the process then start the Garmin XT.
so for those who can't get GPS signal. it's definitely your hardware. I also found that the online customer service officer at HTC is just a mere lips service / useless. they keep telling me to be patient and patient without real action.
There's a free GPS testing tool for Windows Mobile called GPS Test. Once that set up, you can find out which serial port is used by the GPS receiver in your Windows Mobile, and set Google Maps GPS setting accordingly. Once it's set up, Google Maps can easily find multiple satellites if you're on open space. Once it's using GPS, your location on Google Maps will be a pin point, rather than a large circle denoting your approximate location.
PS: Found out with GPS Test that my GPS receiver in my Snap is using COM4 port at 9600 bps
Sincerely,
Paul Pambudi
WIND Mobile HTC Maple users not getting GPS working PLEASE READ!
I went through four HTC Maples (two accounts each 1st phone was a warranty exchange for another non-related problem). Each of the four Maples could not lock in single GPS satellite. WIND tech support had no clue after many calls and tests run at their tech support offices in Toronto. WIND recommended that I get in contact with HTC directly to see if they might have a solution.
One call to HTC started the ball rolling and setup a trouble ticket. Within 3 days and about seven call backs to trouble shoot, HTC had the solution and both of our Maples now have fully functioning GPS with Google Maps.
The problem was in the ROMs that had an old version of Google Maps (both their WM 6.1 and WM 6.5 HTC Maple ROM for WIND accounts).
Solution: using the Maple's browser go to m.google.com/maps and install the latest version. Problem solved!
HTC customer service in North America ROCKS!!!!!!!!!!
Will I buy another HTC product? HELL YA!!!
Here's a gem!
My Snap used to take 30-40 seconds on a cold start to get a location lock (with aGPS turned on).
I installed the attached CAB (which just adds some registry keys, also found here: Here), which makes the phone use Google's aGPS server, and got a cold start GPS lock in 7 seconds... indoors!
arpitp said:
Here's a gem!
My Snap used to take 30-40 seconds on a cold start to get a location lock (with aGPS turned on).
I installed the attached CAB (which just adds some registry keys, also found here: showthread.php?t=544421), which makes the phone use Google's aGPS server, and got a cold start GPS lock in 7 seconds... indoors!
Click to expand...
Click to collapse
The thread you listed for registry key changes doesn't appear to work.
Any chance you might be able to list it again?
Thanks.
AE!
AquiEsta! said:
The thread you listed for registry key changes doesn't appear to work.
Any chance you might be able to list it again?
Thanks.
AE!
Click to expand...
Click to collapse
Sorry, the link was bad. I'm used to posting links in that format from another forum. Anyhow, it's fixed in the last post, and here it is as well:
http://forum.xda-developers.com/showthread.php?t=544421
arpitp said:
Sorry, the link was bad. I'm used to posting links in that format from another forum. Anyhow, it's fixed in the last post, and here it is as well:
http://forum.xda-developers.com/showthread.php?t=544421
Click to expand...
Click to collapse
Thanks for updating the link.
I have tried both of the CABs for the non Nokia and both make no difference if you
can't get a GPS lock. AGPS simply does not work using the latest Google maps CAB
available.
The "FF Ultimate aGPS Tweak_supl.google_Generic.cab" actually makes Google Maps
take forever to just start up after being installed and still no location is updated
indoors. Also, the phone will not snyc now with the desktop and this is after three
soft resets.
Even worse is the fact the phone now runs slow as hell. Everything takes forever
to open and is VERY sluggish.
Installed the other CAB "FF Google aGPS Settings Generic.cab" and still the same
problems. What could be the problem?
Finally got fed up with the POS CAB and uninstalled it. So far I've notice that the
phone has recovered its speed opening items and the right ones not like before
with that POS CAB which would cause all kinds of problems. Snyc now works
and so this looks like I'm back in business minus the fact I still can't get the aGPS
to work.
Oh well, you can't win them all...
AE!

Locations not working on my Omnia 7

It worked once when I first tried it but ever since then for example when I go into maps, it's always searching and searching. the local filter in the bing search doesn't work either...
What can I do? Anyone have the same issue?
I've managed to bring up my location but it's highly innacurate. I downloaded the GPS app that is available in the marketplace and it's showing the wrong latitude/longitude coordinates as well.
Highly annoying.
Do you have Weatherbug installed? This app seemed to break my location service too. Sometimes it showed my location a few hundred miles away... I then uninstalled Weatherbug and somehow, after a while, it was working again -strange.
Now it's very accurate and fast.
Then go into settings -> "find my phone" and check the upper box for "saving the location".
It could also be a problem with your carrier -the location service first takes the location via A-GPS which is you provider's responsibility.
GPS might take a few minutes to determine the exact location.
I called 3 and they said I could arrange a door to door exchange but first they advised me to go to the 3 store nearby and use my SIM in another omnia 7 to see if it works.
Surprise surpise, after the call, the GPS is now perfect. I wonder if they did something at their end lol.
So after a few days use, I have come to the conclusion that the GPS doesn't seem to work well indoors, but as soon as I go outdoors, it's tracking me just fine.
digger1985 said:
So after a few days use, I have come to the conclusion that the GPS doesn't seem to work well indoors, but as soon as I go outdoors, it's tracking me just fine.
Click to expand...
Click to collapse
GPS will absolutely NOT work indoors because it needs nearly line-of-sight to the GPS satellites above. The roof of a car might work but the roof of a house won't.
Indoors the phone is using A-GPS, the triangulation of cell towers of your network operator. It's very inaccurate and might get no location at all.
See my post here: http://forum.xda-developers.com/showpost.php?p=9417735&postcount=2

[Q] GPS - Does it Really Require Wifi? [SOLVED/ANSWERED]

Does the Tablet Really Require the Wifi to be On to use it? Only way we can get it to work is if we turn the Wifi on and then it uses AGPS.
Downloaded GPS Status and it sorta seems to confirm this. Ive read other sites of people returning the product and getting another and GPS works outta the box w/o Wifi?
Thoughts? Solutions?
--Solved -- Issue seems defective Equipment. GPS works Fine in Airplane Mode with GPS on. Tablet was returned for another and now works.
Haven't checked this, but it seems a bit silly. Why would you need a (static) wifi connection when u use the GPS (for moving around). Doesn't make any sense. I will test this tonight.
spaanplaat said:
Haven't checked this, but it seems a bit silly. Why would you need a (static) wifi connection when u use the GPS (for moving around). Doesn't make any sense. I will test this tonight.
Click to expand...
Click to collapse
With the one we have here I can Confirm the only way i can get it to work is with WiFi on. And Acer Support confirms this..
But there is so much conflicting information out there that Id like to see if it can get cleared up.
If people are returning them and their new ones are working fine with normal GPS then did ACER have a Bad Lot? Or are these folks just making rumors.
I've just quickly checked this with Chartcross GPS Test. With WIFI on I could see one satellite indoors. I switched off WIFI and then saw four satelites, so it would seem that WIFI does not have to be switched on for GPS to work. However, having a data connection is always a good thing to get AGPS data with.
Sent from my A500 using XDA Premium App
From my experiance, no it doesn't . I have been using mine with the wifi off with no problems. I use Copilot Live USA to get around all day at work. One thing is, is that Copilot freezes on me if I try to go into the settings menues.
Acer Says Yes
I chatted with an Acer rep this morning and was informed WIFI or 3G is designed to work with the GPS. GPS will not work if there is no data signal. Being hardheaded I called hoping to find someone with more knowledge on this matter and was told the exact same thing, NO WIFI/3G = NO GPS. With this set back I have decided to return.
But I am curious why some peoples are working and others are not?
Im sure my Buddy will post here soon.
but he called Acer and they are saying that it requires Wifi for GPS by Design.
So if everyone else is able to do it.. and he isnt and Acer says thats the way it should be..
Then either some folks have an "added' feature design flaw or they are Fibbing about it. Or Acer just dont know what they are talking about and my buddy has a defective one.
I do not seem to need to be connected to Wifi for GPS to work. I did notice something interesting while researching this though. 22% of my battery usage was coming from cellular. Thats a huge amount of power being used up to poll for a cellular signal that a wifi device isn't doing anything with.
I added about two hours to my battery life by turning the tablet on Airplane mode and then enabled Wifi. Thankfully the little airplane icon in the status bar is only there for a few seconds
The issue is not GPS need WiFi. It is the map need WiFi or 3G datalink in order to be updated with the GPS signal. Your tablet does not preloaded a map like a portable Garmin or TomTom GPS device does.
The GPS does not require Wifi to work, however if you are using an app like Google Maps, this app DEPENDS on wifi to download map and pois. Google Maps is not like your GPS software on your TomTom or Garmin GPS, it downloads the data using the cell modem or in this case the wifi on the device.
To summarize, if you use an app like Copilot or another GPS app that has maps predownloaded then the GPS works just fine on it's own without Wifi.
I hope this clears it up.
john0dean said:
The issue is not GPS need WiFi. It is the map need WiFi or 3G datalink in order to be updated with the GPS signal. Your tablet does not preloaded a map like a portable Garmin or TomTom GPS device does.
Click to expand...
Click to collapse
Neoprimal said:
The GPS does not require Wifi to work, however if you are using an app like Google Maps, this app DEPENDS on wifi to download map and pois. Google Maps is not like your GPS software on your TomTom or Garmin GPS, it downloads the data using the cell modem or in this case the wifi on the device.
To summarize, if you use an app like Copilot or another GPS app that has maps predownloaded then the GPS works just fine on it's own without Wifi.
I hope this clears it up.
Click to expand...
Click to collapse
Then Why Doesn't Foursquare, Gowalla, Or even the GPS Icon Activate.. Or Even using GPS Status.. Using GPS Status It wont do anything unless WiFi is on.
Totally Understand that you need wifi For Map Downloading. But when you have a Static Predownloaded Map using like MapDroid or Even TomTom Software the Maps are preloaded nothing to download.
So you all Are SERIOUSLY saying that your GPS works Fine with out WiFi I ask you to download GPS Status and Try it with out Wifi Being on and See if you can get your GPS to come on and get a Lock.
Because Acer Support has already said that the GPS is WiFi dependent.
sammyboy405 said:
Then Why Doesn't Foursquare, Gowalla, Or even the GPS Icon Activate.. Or Even using GPS Status.. Using GPS Status It wont do anything unless WiFi is on.
Totally Understand that you need wifi For Map Downloading. But when you have a Static Predownloaded Map using like MapDroid or Even TomTom Software the Maps are preloaded nothing to download.
So you all Are SERIOUSLY saying that your GPS works Fine with out WiFi I ask you to download GPS Status and Try it with out Wifi Being on and See if you can get your GPS to come on and get a Lock.
Because Acer Support has already said that the GPS is WiFi dependent.
Click to expand...
Click to collapse
Ok, this is what I did. Turned off wifi and ran GPS status. It locked on to 3 of 6 sat so I guess it works. With wifi on it seems to locate more sat and locks on quickee.
Just to make sure in settings you do have GPS on under location and security correct?
Reply
I tried using MapDroyd with all preloaded maps, it would not give me a Red X for location until I flipped on wifi. That was the only reason I contacted tech support and both chat and phone told me the same thing. There is no power to the GPS until 3G/WIFI is active. Sounds stupid I know, I like the tablet and what nothing more than to keep it but I just refuse to keep something that is configured in such a way. I can live with the AdHoc issue since I know that can eventually be resolved.
Disclaimer - These are not my words but the words directly from Acer tech support.
Trust me I was very clear that I had maps pre-downloaded and the person on the phone was very clear what they told me about how the hardware was configured.
michaelg1030 - YES
T0yman said:
I tried using MapDroyd with all preloaded maps, it would not give me a Red X for location until I flipped on wifi. That was the only reason I contacted tech support and both chat and phone told me the same thing. There is no power to the GPS until 3G/WIFI is active. Sounds stupid I know, I like the tablet and what nothing more than to keep it but I just refuse to keep something that is configured in such a way. I can live with the AdHoc issue since I know that can eventually be resolved.
Disclaimer - These are not my words but the words directly from Acer tech support.
Trust me I was very clear that I had maps pre-downloaded and the person on the phone was very clear what they told me about how it the hardware was configured.
Click to expand...
Click to collapse
Not sure I believe what they said.
I just did one more test. I turned wifi off. Reset my tablet. Made sure wifi was still off. Opened up GPS Statues and it locked on to 5 of 7 sat in less than a min indoors. I dont have any nav software with maps so I can't test that. If GPS status shows nothing with wifi off for you I'd exchange it for a new one.
sammyboy405 said:
Then Why Doesn't Foursquare, Gowalla, Or even the GPS Icon Activate.. Or Even using GPS Status.. Using GPS Status It wont do anything unless WiFi is on.
Totally Understand that you need wifi For Map Downloading. But when you have a Static Predownloaded Map using like MapDroid or Even TomTom Software the Maps are preloaded nothing to download.
So you all Are SERIOUSLY saying that your GPS works Fine with out WiFi I ask you to download GPS Status and Try it with out Wifi Being on and See if you can get your GPS to come on and get a Lock.
Because Acer Support has already said that the GPS is WiFi dependent.
Click to expand...
Click to collapse
None of those programs work without a data connection. Once you use a program that works without requiring some sort of data, the GPS will work.
I don't really care what Acer says - if you call acer and ask 10 people the same question, there's a possibility you'll get several different answers.
I know what I've experienced, and that is that the gps works with wifi disabled.
I'm confused on what you're debating exactly though, are you saying that the gps does not activate/work without wifi or that it doesn't lock on to satellites?
If you want a simpler test to see if it works/activates simply refresh your weather widget manually and with no wifi connection - you'll see the gps icon pop up and it will say searching for satellites. It won't work, since the weather can't update without data but you'll see that it activates the gps.
In essence, the gps in the A500 works exactly like our cell gps, there's no difference. It's Assisted GPS (aGPS) and requires a data connection to locate the satellites quickly vs. standalone or autonomous GPS found in our Garmin/Tom Tom/etc. Without data it's going to take you 10m-20m to find a lock, with data, 3-5m. This might be what's messing with people. The good thing is if you lock on when you get into your vehicle with help from your wifi for example, then you won't have to wait for it to lock on at some other point. Since my gps is on in the tablet all the time, it's locked in and I suppose that's why I'm not having a problem in my tests.
Another thing to keep in mind is that the GPS in use on these devices uses aGPS (assisted GPS) - which uses a combination of cell tower info (if using 3G) and/or known WiFi hotspot locations to help nail down the starting location and speed up the discovery of satellites.
Y'know, the stuff that Apple & Google are getting in so much trouble for having recently
michaelg1030 said:
Not sure I believe what they said.
I just did one more test. I turned wifi off. Reset my tablet. Made sure wifi was still off. Opened up GPS Statues and it locked on to 5 of 7 sat in less than a min indoors. I dont have any nav software with maps so I can't test that. If GPS status shows nothing with wifi off for you I'd exchange it for a new one.
Click to expand...
Click to collapse
OK I will be heading that way for an exchange and update the info once I am back home. Thanks everyone for your input, like I said I like the tablet but the no GPS thing just never made since.
T0yman said:
OK I will be heading that way for an exchange and update the info once I am back home. Thanks everyone for your input, like I said I like the tablet but the no GPS thing just never made since.
Click to expand...
Click to collapse
Good Luck.
you can get app fasterfix from market t
it worked great for me.
i also can not keeo co-pilot from crashing locking up sent them email hope its fixed
soon
Replacement
Ok I am back home after going to BestBuy and picking up a replacement Acer A500. This one grabs my current location using current setup.
Airplane Mode On
WIFI Off
GPS On
I will be going in to the city tomorrow and run a few more tests, will post a new update after but this is looking promising. Thanks again for the feedback!

Why is our Focus' GPS so slow???

Why is the Focus' gps so slow? I don't know what's wrong with my focus, I mean it just takes so long to get the coordinates of my location. I even have to go to a open sky area then wait for few minutes before it can successfully get my coordinates. Its just so annoying, this is a post ipad product, how come an ipad 1 can get my coordinates even inside the room without any difficulty?
Is this a hardware issue or just a firmware fix is due?
my focus gets a very quick lock about 90% of the time, every so often it will take a mintute or so to lock, but i've had this happen with pretty much every phone i've owned, so it seems about average to good for me...
the ipad1 (unless a 3g + wifi model) uses your network to locate you, which is why it's quite fast.
We have 2 Focuses, one AT&T and one Rogers. With both I get about the same time to get a fix, and that's slightly under a minute, in my location (several tall buildings near).
With what app do you check your GPS? I recommend GPS App
It's an AT&T. My ipad is a 3G+Wifi. It gets gps coordinates via gps chip and not A-gps. Most of the time the ipad gets coordinates very fast in span of 20-25 seconds, boom you know where you are in the map.
I am using the built in MAPS software to track my location. Does the software matters? I mean if the chip is really weak, what can the software do ?
jtphl said:
It's an AT&T. My ipad is a 3G+Wifi. It gets gps coordinates via gps chip and not A-gps. Most of the time the ipad gets coordinates very fast in span of 20-25 seconds, boom you know where you are in the map.
I am using the built in MAPS software to track my location. Does the software matters? I mean if the chip is really weak, what can the software do ?
Click to expand...
Click to collapse
Sometimes it does. To give you an example why: GPS without efemerides take several minutes to get a fix. GPS with efemerides take 20s to 1 min to get a fix. Efemerides are downloaded via software.
As for the app I found it to be good enough for testing the GPS part.
I can agree with you. Sometimes while driving if I take a different route than the one the phone provided for me, it will either fail to locate where I am for a few minutes or just fail completely.
I think it's time for a small update.
Is it just a minor driver issue? I hope so , otherwise, we have to live with it or change to another device.
jtphl said:
Is it just a minor driver issue? I hope so , otherwise, we have to live with it or change to another device.
Click to expand...
Click to collapse
Again, other people (including me) haven't experienced any issues.
In fact, it works great for me with Turn by Turn Navigation, even inside the car on the passenger seat (not near the windshield).
Try changing some GPS settings in the focus diagnosis app
Sent from my SGH-i917 using XDA Windows Phone 7 App
what are the settings in GPS I have to adjust to make it perform beyond expectations? Which specific diagnostic option I have to tweak?
Did the OP ever find a solution to this? I'm having some slow locks and the occasional non lock.
I know in the diagnostic app you can get to the GPS with*#1575# but I'm unsure of what data can possibly be changed.
I'm having the same issue on my Focus (Rogers). It never connects to sattelite and always uses aGPS. It's very annoying. I tried many different gps apps and get the same behavior - very innacurate. Garmin allways says "Can't connect to sattelite", gMaps always shows cell tower icon. My phone is unlocked using original Chevron method (not Chevron labs). I also tired to change settings in *#1575# and turn ON/OFF TLS and GLONASS but nothing helps. Should I try hard reset?
Ecstatic12 said:
I'm having the same issue on my Focus (Rogers). It never connects to sattelite and always uses aGPS. It's very annoying. I tried many different gps apps and get the same behavior - very innacurate. Garmin allways says "Can't connect to sattelite", gMaps always shows cell tower icon. My phone is unlocked using original Chevron method (not Chevron labs). I also tired to change settings in *#1575# and turn ON/OFF TLS and GLONASS but nothing helps. Should I try hard reset?
Click to expand...
Click to collapse
I did a hard reset last night and it seems to have cleared up. I also installed this app, have to click the link in the post, searching for it didnt work.http://www.wpcentral.com/new-samsung-high-fidelity-position-enhances-gps-modifies-settings
Not sure if it's a placebo or not, but it seems to be working better.
is Focus GPS native chip or just a-gps?
Coelho_rj said:
is Focus GPS native chip or just a-gps?
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Assisted GPS, which includes standard GPS in Standalone mode, so it's better than any native GPS.
after my hard reset the GPS locked much quicker for about a week, then it started acting up again.
my new solution seems to be much easier than a hard reset. Just briefly switch to airplane mode then re-enable your data and open maps up again. Been working great for me.
Faster solution that's been working for me. Turn on and off location services. My phone never locks without this, which is sorely annoying.
I had this problem on 7392 rom. After updating to mango 7720 and 8107, I get fix in 3 to 7 seconds in my room Tested with gpsinfo, it's real satellite data, not agps. I have also installed high fidelity position settings app. Don't know if it's helping.
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[Q] GPS lock problem after kk

Seems to have GPS lock problems after kk update. Very difficult to get lock, and even when lock is eventually found, signal drops off easily. Anyone with this problem and have a solution for this?
koj012 said:
Seems to have GPS lock problems after kk update. Very difficult to get lock, and even when lock is eventually found, signal drops off easily. Anyone with this problem and have a solution for this?
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To be honest I have seen that on my 4.3, where GPS lock takes more than twice longer (sometimes 5-10 times) than on my S3 - there is another thread on that somewhere. I was hoping 4.4 to come with improved firmware on that one, but apparently not so much
i'm not on kitkat, but i have problems with gps.
however, problems occurs only when recording a track with "my tracks" from google.. as navigation apps works fine, no issue with the signal. only my tracks is giving me huge gaps between checkpoints..
I dont have gps locking problem in kitkat, but with directions while navigation, gps marker points in opposite direction.
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xclub_101 said:
To be honest I have seen that on my 4.3, where GPS lock takes more than twice longer (sometimes 5-10 times) than on my S3 - there is another thread on that somewhere. I was hoping 4.4 to come with improved firmware on that one, but apparently not so much
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I have actually had the same problem, I thought it was only me. I ran stock Italy ROM 4.3, but don't see any improvement under 4.4.2 Poland. Even GPS Status app does not seem to help.
xclub_101 said:
To be honest I have seen that on my 4.3, where GPS lock takes more than twice longer (sometimes 5-10 times) than on my S3 - there is another thread on that somewhere. I was hoping 4.4 to come with improved firmware on that one, but apparently not so much
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Interesting, my GPS lock in MapsWithMe Pro is almost instantaneous. About 5 seconds, usually. Unless I'm indoors, but you can't blame a phone for the laws of physics.
N9005 DBT 4.3 MK2/MJ7/MK2
If I use Google Maps, it will only triangulate if I turn on 'Use WiFi', 'Allow Google Location' and more of that rubbish, and even then it takes about 5 minutes to get a lock.
My advice: Stop using Google Maps.
ShadowLea said:
Interesting, my GPS lock in MapsWithMe Pro is almost instantaneous. About 5 seconds, usually. Unless I'm indoors, but you can't blame a phone for the laws of physics.
N9005 DBT 4.3 MK2/MJ7/MK2
If I use Google Maps, it will only triangulate if I turn on 'Use WiFi', 'Allow Google Location' and more of that rubbish, and even then it takes about 5 minutes to get a lock.
My advice: Stop using Google Maps.
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1. I almost NEVER use Google Maps (OK, maybe for testing stuff) - and I can only wonder how you got that idea anyway Generally I am very happy with Sygic and I also use GPS Test for quick testing, also Accurate Compass (for very quickly calibrating the compass).
2. I have now tested MapsWithMe for like 2 days and I can guarantee you that the "instantaneous GPS lock" is COMPLETE bullsh*t - the program is only caching your last position (which generates huge problems if you move between locks), then it tries to use location data from your WiFi connection if that is active; if not it then tries to use some very basic and EXTREMELY INACCURATE positioning based on GSM cell towers (at which point the error displayed for my position was in the order of 1-2 km); during all those steps the program also fires-up the GPS - but it acquires the lock EXACTLY with the same speed (or complete lack thereof) as any other program attempting GPS lock
3. What still remains a little surprising for me is that sometimes (like well over 50% of time but NOT 100%) my GPS lock is MUCH, MUCH faster (in any program) if I have the Mobile Data connection active (which normally I rarely have); once I have the GPS lock I can then stop the Mobile Data connection and the lock remains perfectly good. EDIT: However the WiFi connection does NOT seem to make ANY difference on GPS lock whatsoever.
Isn't this basicly what AGPS should be doing. It requires a data connection to get the positioning fix faster than just using the GPS. once it gets the location it does not need the data that much. Except for google maps to download the map and navigation information, and this is why it needs a data connection all the time.
Sygic does not need a data connection for the map nor navigation. But, of course, having a data connection well get the fix faster.
y2kkingboy said:
Isn't this basicly what AGPS should be doing. It requires a data connection to get the positioning fix faster than just using the GPS. once it gets the location it does not need the data that much. Except for google maps to download the map and navigation information, and this is why it needs a data connection all the time.
Sygic does not need a data connection for the map nor navigation. But, of course, having a data connection well get the fix faster.
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Oh, I had no surprise from the fact that aGPS can work
What I might have not mentioned above (fixed that now) was:
- a WiFi connection never improves things
- my old i9300 never needed the mobile data connection (or any kind of connection - that made basically no difference on it).
Those two seem to suggest that the Note3 "GPS driver stack" is worse than the old i9300. Also the fact that the mobile data connection does not improve things in 100% of the cases was IMHO interesting to note.
xclub_101 said:
1. I almost NEVER use Google Maps (OK, maybe for testing stuff) - and I can only wonder how you got that idea anyway Generally I am very happy with Sygic and I also use GPS Test for quick testing, also Accurate Compass (for very quickly calibrating the compass).
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Ah, miscommunication. I did not mean you used Gmaps, I meant people in general. Gmaps is a nightmare, on 50Mbps LTE it still barely loads... Even on my homenetwork of 120Mbps WiFi it takes ages to load the map itself, surely the packages are not 1GB a piece?
2. I have now tested MapsWithMe for like 2 days and I can guarantee you that the "instantaneous GPS lock" is COMPLETE bullsh*t - the program is only caching your last position (which generates huge problems if you move between locks), then it tries to use location data from your WiFi connection if that is active; if not it then tries to use some very basic and EXTREMELY INACCURATE positioning based on GSM cell towers (at which point the error displayed for my position was in the order of 1-2 km); during all those steps the program also fires-up the GPS - but it acquires the lock EXACTLY with the same speed (or complete lack thereof) as any other program attempting GPS lock
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I travel an average of 600KM a day.
Yes, MWM caches the last position. Which is hilarious from time to time, last week it thought I was still in Zurich when I was actually in Berlin. If you click the gps icon three times again, it repositions. Waiting for it to refix automatically takes ages.
I do not have WiFi on the Autobahn, (If only! ) and 70% of the journey I do not even have a mobile signal.
3. What still remains a little surprising for me is that sometimes (like well over 50% of time but NOT 100%) my GPS lock is MUCH, MUCH faster (in any program) if I have the Mobile Data connection active (which normally I rarely have); once I have the GPS lock I can then stop the Mobile Data connection and the lock remains perfectly good. EDIT: However the WiFi connection does NOT seem to make ANY difference on GPS lock whatsoever.
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Nothing suprising about that. It uses the celltowers to triangulate by sending a data package, as opposed to attempting to connect to three satelites. If the network is fast enough (UMTS and above) it is much easier to get an accurate position. GPRS doesn't work all that well, nor does having 1 bar of signal on anything but LTE.
WiFi only helps if there are active points nearby (no need to connect to them, detecting them is sufficient) and you have 'use wireless networks' enabled under Location Settings.
I just tested: WiFi and Mobile Data off, No network signal, on the Fyra (Highspeed train. Or as much as the NS can manage, anyway.) from Schiphol Airport to Breda @160kph. Got a lock with SpeedView in 15 seconds, detected 24 sats. Not instantaneous, but then you can't ask for that at such speeds.
I do have to say, on the previous firmware it took much, much longer. About 1-2 minutes. And I tried a Dutch Note 3 yesterday, it required almosylt a minute on the same firnware version.
The weather also influences the signal, clear skies vastly improve things. As does solar activity. Last October you could wait an hour and not get a lock, due to a solarstorm causing too much magnetic interference in the atmosphere. Even my GPS locator itself took almost half an hour.
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ShadowLea said:
...
Nothing suprising about that. It uses the celltowers to triangulate by sending a data package, as opposed to attempting to connect to three satelites. If the network is fast enough (UMTS and above) it is much easier to get an accurate position. GPRS doesn't work all that well, nor does having 1 bar of signal on anything but LTE.
...
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Actually original aGPS doesn't quite work that way at all - here is some info from some of the guys doing some of the Linux kernel drivers for aGPS devices (I can not guarantee it is 100% accurate but fits OK with other info that I have seen):
http://wiki.openmoko.org/wiki/Hardware:AGPS
And another thing to remember when testing GPS - after a successful GPS lock it is very likely that you will have a MUCH faster 2nd GPS lock for up to about 2 hours. So any such immediate 2nd lock should be see in the above context, also the lack of it
Least this problem isn't just me. Always used to track my rides with Endomondo without a hitch but I went out for the first time since KitKat and I couldn't tell you how many times it dropped out on that 2 hour ride ... but it was alot
Xalies said:
Least this problem isn't just me. Always used to track my rides with Endomondo without a hitch but I went out for the first time since KitKat and I couldn't tell you how many times it dropped out on that 2 hour ride ... but it was alot
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Seems to be a very common problem. Read somewhere that this is a software issue and there is a fix if the phone is rooted by flashing a patch on it. But I'm not about to root my phone and lose the warranty. SAMSUNG please release an update quickly that fixes this problem.
koj012 said:
Seems to be a very common problem. Read somewhere that this is a software issue and there is a fix if the phone is rooted by flashing a patch on it. But I'm not about to root my phone and lose the warranty. SAMSUNG please release an update quickly that fixes this problem.
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I am rooted (with knox 0x0 ) and I have looked into that patch - the one that I saw only sets a different AGPS server address and has minimal or no impact - actually I have a strong feeling that there is something in the CSC that overrides it, which explains why the AGPS server only improves things for me when connected only on mobile data and not over wifi.
IMHO that seems to be mostly a firmware / software driver issue - on my old S3 it looked like there was a lot more "caching" of the "GPS almanac" and slightly more pre-calculation of the "GPS ephemeris", possibly on the application CPU on the phone (which has humongous general-computing power compared with the CPU used inside the GPS circuit, which however is highly more specialized). On the Note 3 it seems to work in a "safer" approach in which older (than like 2 hours) GPS almanac data is considered inaccurate and so is the time otherwise used to pre-calculate GPS ephemeris (which time to be honest I have seen WILDLY inaccurate on some carriers, something like 27 seconds away; and of course if the time is not carrier-set the phone time can easily be tens of minutes away ).

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