I propose that one of these GPS problem threads be made sticky since we cannot simply search "GPS" here and the GPS problems seem to be accumulating.
With that said, I would have to say that my GPS performance is pretty terrible. At first, it felt like doing the QuickGPS thing and/or deleting the xtra.bin file helped. For the most part, though, getting a lock has proven quite sporadic. What should the expectation here be? Should I expect the GPS to work reliably indoors? What about if I am near a window? Why would it work in some buildings near a window and not in others?
My personal opinion is that the GPS should work within 15-20 feet of a window. Using Chartcross GPS Test, even when the GPS is locked, I am getting mostly yellow bars. I am not exactly sure what a good reading looks like on Chartcross, but there appears to be a 25%, 50%, 75%, and 100% bar. Maybe the 25% bar is 100%? In any event, I rarely have a satellite that is getting above what I suspect to be 30%.
Is there a thread somewhere that details what the various fields mean and/or should read in Chartcross or a similar utility? I am coming up on my 30 days to return the phone, so if someone thinks that my device may be defective please speak up!
Thanks as always XDA-ers!
GPS signals are not strong, you have to be near a window (e.g. less than 50cm) or outside to get it to work properly. Inside I get 8 sats with too little to lock, outside I can get up to 11 locked. I use modified GPS settings to improve the lock. I've created a CAB for you.
http://rapidshare.com/files/179766394/X1_GPS_Enhancements.cab.html
Try them and then tell me how it works.
No you cant use it inside, but this has nothing to do with windows. Think of it this way:
To use the GPS, you need a line of sight to the sky, small barriers it will work through (like car roofs). So even a "line of sight" to a window, wont help you because of the thikness of the house roof. To be able to use GPS inside, you need something else, like a big antenna
Anyways, the GPS is for outside/car use only.
CantoX1i said:
No you cant use it inside, but this has nothing to do with windows. Think of it this way:
To use the GPS, you need a line of sight to the sky, small barriers it will work through (like car roofs). So even a "line of sight" to a window, wont help you because of the thikness of the house roof. To be able to use GPS inside, you need something else, like a big antenna
Anyways, the GPS is for outside/car use only.
Click to expand...
Click to collapse
That is partially true. The signal can "reflect" off surfaces as well, though - as with light - weaker. And it does have to do with windows simply because a window has a lot (lot!) less density than say, a brick wall. Less density means easier path for the signal. Being near a window does indeed increase the chance of signal lock.
Angelusz said:
That is partially true. The signal can "reflect" off surfaces as well, though - as with light - weaker. And it does have to do with windows simply because a window has a lot (lot!) less density than say, a brick wall. Less density means easier path for the signal. Being near a window does indeed increase the chance of signal lock.
Click to expand...
Click to collapse
hah, I did not know that! Thanks for informing me
I have a lock when I am inside all the time, usually about 5 satellites or so... out side that jumps considerably, in fact I was very impressed with the speed and sensitivity when compared to my Kaiser/TyTN II/MDA Vario III and I havent used quick gps yet... of course now I said that its going to be sods luck and it will [email protected] out on me...
Shadowdh said:
I have a lock when I am inside all the time, usually about 5 satellites or so... out side that jumps considerably, in fact I was very impressed with the speed and sensitivity when compared to my Kaiser/TyTN II/MDA Vario III and I havent used quick gps yet... of course now I said that its going to be sods luck and it will [email protected] out on me...
Click to expand...
Click to collapse
Well, it depends on several factors. If your home is made of wood instead of brick, that'll make a difference. If you live higher above sea level, it might make a difference. If you live on the countryside, that will definitely make a difference. I happen to live below sea level in a brick house in the middle of an average sized city. My reception won't be something to write home about
Angelusz said:
Well, it depends on several factors. If your home is made of wood instead of brick, that'll make a difference. If you live higher above sea level, it might make a difference. If you live on the countryside, that will definitely make a difference. I happen to live below sea level in a brick house in the middle of an average sized city. My reception won't be something to write home about
Click to expand...
Click to collapse
Ah see, I live on a hill in the country in a house made of straw... well not straw, its brick but still in the clear when it comes to being surrounded by other houses... this probably makes the diff... cheers
I've only had signal ONCE so far with my X1
It was at my living room window.
After that, no signal, ever. Not even out doors.
Im in NYC, plenty of buildings, but cmon somethings gotta be wrong. I even tried a hard reset to get it to work again. Nope... Bastard GPS ):
Nippero said:
I've only had signal ONCE so far with my X1
It was at my living room window.
After that, no signal, ever. Not even out doors.
Im in NYC, plenty of buildings, but cmon somethings gotta be wrong. I even tried a hard reset to get it to work again. Nope... Bastard GPS ):
Click to expand...
Click to collapse
Run quickGPS and install my cab. Try again and let us know!
Nippero:
you wont get any signal (or good accurate location) if you are in a big city.... your best bet is using google map w/ agps and let the cell tower locate where you are at
another thing I want to point out.... I tried using the gps on x1 when I was on the plane... while it was always able to lock on to a couple sats... it wasnt able to locate where I was at .... and the worst part is after I get back on the ground... the gps stop working and I had to hard reset my phone .... I tested it twice and both seems to be the case... so if you dont want to hard reset your phone.... I suggest you not to try it next time when you are on the plane
You guys must have really big houses to need GPS to work indoors
Angelusz said:
GPS signals are not strong, you have to be near a window (e.g. less than 50cm) or outside to get it to work properly. Inside I get 8 sats with too little to lock, outside I can get up to 11 locked. I use modified GPS settings to improve the lock. I've created a CAB for you.
http://rapidshare.com/files/179766394/X1_GPS_Enhancements.cab.html
Try them and then tell me how it works.
Click to expand...
Click to collapse
I really appreciate the quick reply and cab file. I will load it shortly. Is my understanding correct that A-GPS is turned off by default? If so, does this cab enable it? What improvement did you see with your cab file? Lastly, do you use Chartcross GPS test? I'm trying to figure out what the different fields/values mean in it.
Thanks!
Careful with changing the A-GPS to on by default. You can do this through Schapman's advanced configuration tool too, but I've had nothing but bad luck with it.
I use iGO8 and after I turned A-GPS on, the gps signal would drop every few seconds and would have a hard time finding satellites. Switching everything back to factory "defaults" and just using quickgps updates, I've had zero issues. Apart from the initial sat discovery, it's always fast to start and fast to pick back up (maybe 2-3 seconds) again.
jhoffa said:
Careful with changing the A-GPS to on by default. You can do this through Schapman's advanced configuration tool too, but I've had nothing but bad luck with it.
I use iGO8 and after I turned A-GPS on, the gps signal would drop every few seconds and would have a hard time finding satellites. Switching everything back to factory "defaults" and just using quickgps updates, I've had zero issues. Apart from the initial sat discovery, it's always fast to start and fast to pick back up (maybe 2-3 seconds) again.
Click to expand...
Click to collapse
Speaking of iGO8, does 8.1 work with the Xperia or only 8.3?
Dead link....
Hello everyone !
Can someone repost the cab file ? as it was uploaded to a limited RS account it is not downloadable anymore.....
Thanks a lot in advance !
Angelusz said:
GPS signals are not strong, you have to be near a window (e.g. less than 50cm) or outside to get it to work properly. Inside I get 8 sats with too little to lock, outside I can get up to 11 locked. I use modified GPS settings to improve the lock. I've created a CAB for you.
http://rapidshare.com/files/179766394/X1_GPS_Enhancements.cab.html
Try them and then tell me how it works.
Click to expand...
Click to collapse
Per RapidShare...
Error
This file is neither allocated to a Premium Account, or a Collector's Account, and can therefore only be downloaded 10 times.
This limit is reached.
To download this file, the uploader either needs to transfer this file into his/her Collector's Account, or upload the file again. The file can later be moved to a Collector's Account. The uploader just needs to click the delete link of the file to get further information.
odobo said:
another thing I want to point out.... I tried using the gps on x1 when I was on the plane... while it was always able to lock on to a couple sats... it wasnt able to locate where I was at .... and the worst part is after I get back on the ground... the gps stop working and I had to hard reset my phone .... I tested it twice and both seems to be the case... so if you dont want to hard reset your phone.... I suggest you not to try it next time when you are on the plane
Click to expand...
Click to collapse
GPS is only able to keep a lock under a certain speed. Airplanes are fast, so you will lose the lock. Once on the ground you can get a lock again by running QuickGPS. As your location has changed tremendously (depends on how far you fly ofc), the sattelites aren't where your phone thinks they are.
ohiosux said:
I really appreciate the quick reply and cab file. I will load it shortly. Is my understanding correct that A-GPS is turned off by default? If so, does this cab enable it? What improvement did you see with your cab file? Lastly, do you use Chartcross GPS test? I'm trying to figure out what the different fields/values mean in it.
Thanks!
Click to expand...
Click to collapse
You're welcome. My CAB does not enable aGPS, as it sometimes causes problems like quoted below. It changes some registry settings that basically tell your phone to keep looking for a better lock, for a longer period of time.
jhoffa said:
Careful with changing the A-GPS to on by default. You can do this through Schapman's advanced configuration tool too, but I've had nothing but bad luck with it.
I use iGO8 and after I turned A-GPS on, the gps signal would drop every few seconds and would have a hard time finding satellites. Switching everything back to factory "defaults" and just using quickgps updates, I've had zero issues. Apart from the initial sat discovery, it's always fast to start and fast to pick back up (maybe 2-3 seconds) again.
Click to expand...
Click to collapse
Do not that your individual experience with aGPS doesn't generalize to everyone. I've personally tried aGPS here. It made 0 difference (as far as I could tell), so turned it off again.
If you wish to try aGPS, feel free to do so, as it can be disabled as easily as it can be enabled, a hard-reset should not be neccesary.
ragnascroutch said:
Hello everyone !
Can someone repost the cab file ? as it was uploaded to a limited RS account it is not downloadable anymore.....
Thanks a lot in advance !
Click to expand...
Click to collapse
Yet again: http://rapidshare.com/files/180048557/X1_GPS_Enhancements.cab.html
As I don't have a better rapidshare account, it's yet again a 10-DL limit CAB. If anyone can mirror it for me, that'd be nice.
My iGO works fabulous after installing Angelusz's cab. GPS connection is now very fast even in my apartment.
What did u do man....?
Many thanks !
Angelusz said:
Yet again: http://rapidshare.com/files/180048557X1_GPS_Enhancements.cab.html
As I don't have a better rapidshare account, it's yet again a 10-DL limit CAB. If anyone can mirror it for me, that'd be nice.
Click to expand...
Click to collapse
Thanks a lot for the upload mate, i'll share some feedback when i'll have some time to test...
Cheers.
Related
I bought the HTC Touch HD a few weeks ago and noticed that the accuracy is not just bad, but atrocious. It can't even locate me within a 300 meter radius. Is that normal? Does anyone else have this problem? I am using the latest Google Maps.
Thanks in advanced.
I would try a proper GPS program and see if it is the same, if so your HD is faulty.
No problem here. .Maybe silly question, but did you click on "Use GPS"?
--cheerios
skotler said:
I bought the HTC Touch HD a few weeks ago and noticed that the accuracy is not just bad, but atrocious. It can't even locate me within a 300 meter radius. Is that normal? Does anyone else have this problem? I am using the latest Google Maps.
Thanks in advanced.
Click to expand...
Click to collapse
Are you sure you have a satalite lock? Google maps also determines position from cell towers and gives an estimate to your location within approx 500M. Once gps is activated and satlites have been aquired, a more accurate position is displayed (and i get a blue triange above the location - i guess to indicate actual position).
The little blue trianlge shows the direction you're moving - so the GPS is pretty accurate! Sometimes it doesn't get a lock for a while (it'll say at the top-right when it has active satellites) - if not, then it just uses that cell tower triangulation thing which gets it within about 500m as mentioned above.
aabye said:
No problem here. .Maybe silly question, but did you click on "Use GPS"?
--cheerios
Click to expand...
Click to collapse
Ya, it is on.
It can get working when I'm on the move, but as soon as I am still, it screws up. For instance, I can be driving to work and it works fine as far as telling me where I am at the moment. As soon as I close it and reopen it at work, it tells me I am somewhere 300-500 meters from work.
I guess I don't understand how it can work so well on the move, but as soon as I need an accurate reading, it is way off. Does this happen to anyone else?
skotler said:
Ya, it is on.
It can get working when I'm on the move, but as soon as I am still, it screws up. For instance, I can be driving to work and it works fine as far as telling me where I am at the moment. As soon as I close it and reopen it at work, it tells me I am somewhere 300-500 meters from work.
I guess I don't understand how it can work so well on the move, but as soon as I need an accurate reading, it is way off. Does this happen to anyone else?
Click to expand...
Click to collapse
Once it's closed it loses the "Use GPS" setting and you have to turn that back on and wait for the Satellites to be located all over again.
Well i think there is a gps delay issue with the latest HTC phones as blackstone, Raphael and diamond and i believe there is a little on the x1. Well there will is always ways to tweak settings in the registry i guess. well you'll probably find something here at xda...
Ok, I see what you are saying...sa we speak, I am trying to get the location of where I am at on my phone. The status has been on "Seeking GPS satellites (0)" for about 3 minutes now. It just relocated my location nowhere near me.
Ok, I just got a message telling me that my "GPS receiver is having trouble tracking GPS satellites." It's a very clear night in southern California, no clouds, no trees, etc...If it is because I can't get a satellite, is there a way to configure it?
Can it be because I am inside my house? If so, that is absurd!
skotler said:
Ok, I see what you are saying...sa we speak, I am trying to get the location of where I am at on my phone. The status has been on "Seeking GPS satellites (0)" for about 3 minutes now. It just relocated my location nowhere near me.
Ok, I just got a message telling me that my "GPS receiver is having trouble tracking GPS satellites." It's a very clear night in southern California, no clouds, no trees, etc...If it is because I can't get a satellite, is there a way to configure it?
Can it be because I am inside my house? If so, that is absurd!
Click to expand...
Click to collapse
Well i suggest you to go out and test it.. well also i suggest you to always keep your quick gps application updated so you'll get a quick fix locked to sattelites.. my Raphael locks on around 20-30 seconds and sometimes even less....
no problem here!
i've tested head to head with my old Asus P535 SirfIII (wich is pretty good as gps) on a 300km trip and they react in the same way.
no lag, no errors.
i use iGO8!
Well i found this on youtube: omnia vs HD in gps...
i am aware of that greek clip
what can i say? they have their experience, i have mine.
from my experience i say the gps of hd is good enough, as long as i don't make maps and i don't need precision on cm level
GPS works great on HD. Tested with IGO8 and latest TomTom, as well as Google Maps - all have accuracy within 5m range, wich is more then enough for normal navigation use.
I also tested my HD along side with Garmin car navigation unit - they were literary synchronized to the very second, even the voice instructions came at the same time, it was actually very funny
If you're having problems, I suggest you look up here on the forum for HTC GPS tool.
Well just to say, I agree with you guys eventhough i have a Raphael.. well i guess the gps chipset are the same.. (correct me if im wrong though) .. well many people in the Raphael community is talking about 50 - 100 yards lag but i only experience 5m, the most ive experienced was 10m but that was just once..
GPS doesn't work inside. Not just on the Touch HD but on any GPS device.
At the most, my lag is a car's length. I think my Trinity was slightly more accurated but not by much.
As far as getting a lock from inside, I can occaisionally get a lock if I am sat by my West facing window, but otherwise not a chance!
Ok, I got it working! I guess it just takes a couple minutes without touching any keys to acquire the satellites.
So in conclusion, to impatient people like me, don't touch any keys for a good minute or two. Thanks, guys!
HandGrip said:
GPS doesn't work inside. Not just on the Touch HD but on any GPS device.
Click to expand...
Click to collapse
Mine does. Can take about a minute/minute and a half to lock to the satalites, usually finds about 9 of them, and from google maps when zoomed in to max you can see roughly where abouts in the house the handset is.
The cell tower lock is useless. I'm in the north west of england. The cell lock feature keeps telling me I'm in Russia!!
like all gps i have used, sometimes getting a fix is hard work, regardless of apparent sky conditions.... i guess thats what happens when technology (the gps sats) are made by the lowest bidder
if you have a "your postion within 300-500m" message displayed, then that is using the cell mast to get your position, you never see this message when using GPS
some progs and some roms prefer to have the gps ports mapped, i do it manually for all my gps progs using com4 and bit rate of 9600k... seems to offer best situation
afaik, no civilian GPS can assure an accuracy of greater then 15m, although some units some of the time seem to be more precise
i dont see lag, i see the limitations of GPS (outside of military application... but then again, we've seen how accurate smart bombs are not!!)
My Gps on Google maps is tripping -=- tells me -=- location temporarily unavailable .............................
anyone else with this issue??
Yeah, I'm getting it too.
Seems to be common to all galaxy s phones. I'd link you, but I can't!
Try samsunggalaxysforumDOTCOM/samsung-galaxy-s-how-to/gps-problem/
socal_brandon said:
Yeah, I'm getting it too.
Seems to be common to all galaxy s phones. I'd link you, but I can't!
Try samsunggalaxysforumDOTCOM/samsung-galaxy-s-how-to/gps-problem/
Click to expand...
Click to collapse
thanks let me gpo read up on it if u find a fix plz post
Neffstarr said:
thanks let me gpo read up on it if u find a fix plz post
Click to expand...
Click to collapse
are you on a vibrant or galaxy s?
Go to
Setting>check use wireless networks and gps. Download update for google maps and you good to go. Also install speech synthesis. Btw this is on the vibrant.
My gps works good and fast as soon as i click google maps for the first time it knew my exact address
guys thank for ur replies ..i have the Vibrant & the GPS is working now... i did nothing to it ..but i am happy also be looking out for my wallpapers coming tonight for the VIbrant
I'm having problems with the GPS.
I have two G1s and got two Vibrants to replace them.
The G1s CPS lock easily and give you 12 feet precision very fast.
The two Vibrants take forever to lock and stay at 35 feet precision, sometimes going down to 30 feet.
G1s are miles ahead in the GPS department.
I'm dissapointed.
^ I'm not seeing those results and my Vibrant locks in quicker.
If you're going to compare it to another phone, then clear all of the google map cache before you start comparing.
My G1 and Vibrant took about 1 minute to fully lock on into my location and both were accurate. Sometimes the G1 is slower though.
Yeah maybr Cellular Data enables A-GPS instead of regular GPS. Not sure but now I get a lock in my house! Phones always suck without AGPS. 10 minutes to acquire a signal without it.
my gps has been snappy... interesting that there have been problems (compass has a slight jitter... but its almost imperceptible)
Nevermind Think I got it
i have yet to have GoogleMaps successfully find my location, both inside my apt and standing outside. My GoogleMaps updated itself this morning. Any tips?
Have you enabled cellular networks for location services?
heygrl said:
Have you enabled cellular networks for location services?
Click to expand...
Click to collapse
This shouldn't be necessary. I know aGPS helps, but pure GPS should work anyway, albeit taking more time to lock.
I bought two Vibrants and left hem out in the backyard for 1 hour, over a table, and they could not lock on the satellites. One hour!
The GPS ship in these unites are either second class or there is a bad batch.
The old G1 locked in 15 seconds.
heygrl said:
Have you enabled cellular networks for location services?
Click to expand...
Click to collapse
sadly, i did not. I'm very very new to android and didnt know something like that wouldnt be on. That certainly did the trick, thanks!
P.S. anybody put in the gps test code and play around with skyhook? i just turned it on. In addition anybody know what changes the accuracy value does (default is 50)?
nricci said:
This shouldn't be necessary. I know aGPS helps, but pure GPS should work anyway, albeit taking more time to lock.
I bought two Vibrants and left hem out in the backyard for 1 hour, over a table, and they could not lock on the satellites. One hour!
The GPS ship in these unites are either second class or there is a bad batch.
The old G1 locked in 15 seconds.
Click to expand...
Click to collapse
15 seconds without aGPS is better than a standalone GPS system. You must've had aGPS on..
@jblade1000 Yeah I didn't even think to check it. I think it was left off unintentionally by T-Mobile or Samsung. It works for me. We might not even have standalone GPS. It's not out of the question.
My GPS won't lock for the life of me. Thought it might be due to being inside, but I went out in the middle of a field and got no lock.
copualt3 said:
Go to
Setting>check use wireless networks and gps. Download update for google maps and you good to go. Also install speech synthesis. Btw this is on the vibrant.
Click to expand...
Click to collapse
Worked perfectly after I did this.
Just to clarify for everyone:
Settings -> Location and security -> check use wireless networks and check use GPS satellites..
I keep reading the problems with the GPS. Not doubting it, but I use the piss out of mine and never have a problem. I just put CM6 on my brothers EVO and we played with his GPS, comparing them. Mine is way faster and smother.
I want to know what to look for to see what the problem is?
Please help me, understand, your pain... ; )
My GPS Just Works™ too. I haven't had a problem with it yet and I hope it stays that way!
Literally sitting here holding mine in the windowsill. Approx 2 minutes and absolutely nothing in Maps. This was without the wireless networks option, which I'm turning on now. With it on I get a quick fix but it is inaccurate to the point of being unusable. My location which it claims is accurate to 70 meters is a solid 5 blocks to the southeast.
All this done with the brand new froyo leak. Doesn't bode well.
EDIT: I kinda wonder if my GPS settings are messed up from all the screwing around. Could one of you punch *#1472365# into your dialer and tell me what your settings are?
Set wi-fi to never turn off and use it frequently for a couple days, then try your GPS.......Samsung has totally messed up the GPS on this phone.
viperacr99 said:
Set wi-fi to never turn off and use it frequently for a couple days, then try your GPS.......Samsung has totally messed up the GPS on this phone.
Click to expand...
Click to collapse
If I had a nickel for every "fix" people have posted on these boards... Frankly I am just giving up on anything non-official until someone can put up some hard evidence of what they did and why it worked.
Can't say that I ever did anything to fix it. I just wanted to know if there was a test. No fix. I wish I could share what it is.
I sit here right now in my living room. I found an app that tells me the number I see and use. Right now. 9 to 10. 6 used. I'm in a one story house. I start Nav and click Map and within 5 to 10 sec... the arrow is on the street in front of my house. I never turn off the GPS icon. Why turn it off at all?
I feel like I need to share something to help, I just don't know what.
Sent using the Epic 4G
a454nova said:
Can't say that I ever did anything to fix it. I just wanted to know if there was a test. No fix. I wish I could share what it is.
I sit here right now in my living room. I found an app that tells me the number I see and use. Right now. 9 to 10. 6 used. I'm in a one story house. I start Nav and click Map and within 5 to 10 sec... the arrow is on the street in front of my house. I never turn off the GPS icon. Why turn it off at all?
I feel like I need to share something to help, I just don't know what.
Sent using the Epic 4G
Click to expand...
Click to collapse
It's not your responsibility, it's Samsung's. You don't need to do anything.
Poryhack said:
If I had a nickel for every "fix" people have posted on these boards... Frankly I am just giving up on anything non-official until someone can put up some hard evidence of what they did and why it worked.
Click to expand...
Click to collapse
I use nothing but wifi when at my house, and wifi has not been disabled by me since I bought the phone, and I get locks near instantly. They are ridiculously inaccurate, but I get locks fast. I get probably 70ft accuracy, which is a pain when driving as the GPS has to figure out what the wildly crazy inaccurate data means, but it works for the most part. Gotta make it more accurate samsung.
muyoso said:
I use nothing but wifi when at my house, and wifi has not been disabled by me since I bought the phone, and I get locks near instantly. They are ridiculously inaccurate, but I get locks fast. I get probably 70ft accuracy, which is a pain when driving as the GPS has to figure out what the wildly crazy inaccurate data means, but it works for the most part. Gotta make it more accurate samsung.
Click to expand...
Click to collapse
What do you mean you get "locks" fast? Do you mean you have some indication that it is receiving a signal from satellites? Is the GPS icon still flashing?
No, it locks in on GPS within a few seconds. It is still only accurate to 98ft, which is the best I can ever achieve, but it is definitely a GPS lock.
muyoso said:
No, it locks in on GPS within a few seconds. It is still only accurate to 98ft, which is the best I can ever achieve, but it is definitely a GPS lock.
Click to expand...
Click to collapse
It's not locked on a gps satellite..... you're having a false positive.
J3ff said:
It's not locked on a gps satellite..... you're having a false positive.
Click to expand...
Click to collapse
A false positive that follows my exact location within 98 ft across 4 states? Im gonna go out on a limb and say that its not a false positive.
muyoso said:
A false positive that follows my exact location within 98 ft across 4 states? Im gonna go out on a limb and say that its not a false positive.
Click to expand...
Click to collapse
Even though it is following you, I think you are basically having the same problem as a lot of other people. It shouldn't have that much error, especially all the way across 4 states.
+ or - 98 feet across 4 states = NO GPS LOCK.
98 FEET IS A HELL OF A LOT!
lol.
A real gps lock has the arrow + or - ONE or so feet for me on ALL my other phones. Hell My touch Diamond knew which room of the house I was in!
A real gps lock also is not bouncing all around. It smoothly follows every road you're on.
It's ok that you just don't realize it, but don't sit there and say that your GPS WORKS PERFECTLY when it can't even get a real lock on where you are.
Again, 98 feet + or - is not a real lock.
If the user is showing the estimated accuracy of 98 ft, there is a satellite lock. One of the GPS bugs on the Epic is that all units always report an estimated accuracy of 30.0 meters (98.4 feet) when a lock is achieved, instead of dynamically calculating the estimate as a variable. This is not the same as the actual accuracy, which is typically pretty good.
The bogus estimate shows up in GPS Test, for example. But without a lock, the estimated accuracy is reported as 0 meters (or 0 feet).
This is not the most serious GPS bug. That bug has different symptoms -- no lock on multiple satellites because the phone fails to refresh the time-sensitive GPS cache data over time. A variety of user behavior, including very frequent use of the GPS, or frequent reboots, will prevent the onset of this bug by causing the cache to be refreshed or cleared.
The Cold Start workaround works by forcing the cache to be refreshed each time when the GPS starts. A complication is that the workaround seems not to work when WiFi or 4G is enabled.
Hi,
I'm using I-9500 and noticed that my GPS is not as accurate as my previous phone (Motorola droid).
I tried to reset A-GPS data and put the phone outside for 30 minutes but this didn't help.
with motorola droid I could get a 4 meter accuracy and with my new galaxy s4 I get 6-16 meters accuracy..
How can I get it right? I saw some people posting an 10 feet accuracy (3-4 meters).
Anyone? Please?
I can get 3 metres almost every time. Generally I do what you did if I know I'm going to be needing GPS - reset data, re-download ephemeris, go outside, turn GPS on/put phone in flight mode, fire up GPS Status & let it do its thing. That usually gives me good/fast fixes just about anywhere for anything up to a couple of weeks (then I repeat).
But given you've pretty much done that & you're still not getting any joy, I'd be trying different kernels - stock ones, custom ones, shouldn't really matter. Now if your phone is completely stock/you've never flashed anything, you might not want to do this as obviously any flash involves some small risk. There are also other fixes around the place which involve flashing various mods/modifying system files (which an XDA search should yield), but again many of these involve flashing which you may not want to do.
In that case you're pretty much stuck with trying a factory reset, or perhaps seeing if your carrier has an OTA update/newer firmware, and that's about it short of taking it in for warranty service. And chances are they'll find nothing wrong with it & simply flash whatever latest firmware they have. Which could mean you end up with the new 'locked' bootloader if you don't already have it, which creates a whole host of issues if you do decide to mod your phone down the track (if you do an OTA update you might end up with this issue as well if the new firmware has the new bootloader).
MistahBungle said:
I can get 3 metres almost every time. Generally I do what you did if I know I'm going to be needing GPS - reset data, re-download ephemeris, go outside, turn GPS on/put phone in flight mode, fire up GPS Status & let it do its thing. That usually gives me good/fast fixes just about anywhere for anything up to a couple of weeks (then I repeat).
But given you've pretty much done that & you're still not getting any joy, I'd be trying different kernels - stock ones, custom ones, shouldn't really matter. Now if your phone is completely stock/you've never flashed anything, you might not want to do this as obviously any flash involves some small risk. There are also other fixes around the place which involve flashing various mods/modifying system files (which an XDA search should yield), but again many of these involve flashing which you may not want to do.
In that case you're pretty much stuck with trying a factory reset, or perhaps seeing if your carrier has an OTA update/newer firmware, and that's about it short of taking it in for warranty service. And chances are they'll find nothing wrong with it & simply flash whatever latest firmware they have. Which could mean you end up with the new 'locked' bootloader if you don't already have it, which creates a whole host of issues if you do decide to mod your phone down the track (if you do an OTA update you might end up with this issue as well if the new firmware has the new bootloader).
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I tried to reset to factory settings and it still the same..
so is that the gps component's fault?
TheBenjamin said:
Hi,
I'm using I-9500 and noticed that my GPS is not as accurate as my previous phone (Motorola droid).
I tried to reset A-GPS data and put the phone outside for 30 minutes but this didn't help.
with motorola droid I could get a 4 meter accuracy and with my new galaxy s4 I get 6-16 meters accuracy..
How can I get it right? I saw some people posting an 10 feet accuracy (3-4 meters).
Click to expand...
Click to collapse
First off all ... alway make measurement in open air. Big buildings will give you bad accuracy!
My S4 was default setup to use a A-GPS server in North America, China or whatever ... even I live in Denmark! Took 10-15 sec. or more to get a fix.
Faster GPS from Play Store did the trick, but will only work if your have ROOT ... https://play.google.com/store/apps/details?id=org.fastergps. Now I have a fix in 2-3 sec.
Don't know if this could be to any help for you?
If problem persist you might have a faulty device?
I get a fix, pretty quick.. thats not the problem.
It doesn't get accurate more than 6 meters. when it sould be 3-4
TheBenjamin said:
I get a fix, pretty quick.. thats not the problem.
It doesn't get accurate more than 6 meters. when it sould be 3-4
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Could wifi location have something to do with this?
If "use WiFi for better locations" is enabled, then try to disable it.
GPS should be precise without usages of WiFi location.
How many satellites do you get signal from, and how good are the signals?
I use "GPS Test" to check how many satellites in use.
BTW ...
Being inside my house I get accuracy 10 meter from 15 satellites ... Outside accuracy 3 meter from 18 satellites.
"GPS Test" will highlight GLONOSS satellites (high numbers).
Mittaa said:
Could wifi location have something to do with this?
If "use WiFi for better locations" is enabled, then try to disable it.
GPS should be precise without usages of WiFi location.
How many satellites do you get signal from, and how good are the signals?
I use "GPS Test" to check how many satellites in use.
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I tried both options.. WIFI on and off..
There's a picture above... about 15 satellites...
at the same spot Nexus 4 got a fix of 3 meters with 7 satellites.
TheBenjamin said:
I tried both options.. WIFI on and off..
There's a picture above... about 15 satellites...
at the same spot Nexus 4 got a fix of 3 meters with 7 satellites.
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Click to collapse
Yes I see. Strange and running out of ideas.
Do you use any case ?
I know they are talking about HTC phone, but did you read this thread?
http://forum.xda-developers.com/showthread.php?t=1564000&page=2
Mittaa said:
Yes I see. Strange and running out of ideas.
Do you use any case ?
I know they are talking about HTC phone, but did you read this thread?
http://forum.xda-developers.com/showthread.php?t=1564000&page=2
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Click to collapse
nope... =/
TheBenjamin said:
nope... =/
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Then it must be a faulty device ... and if possible a replacement
I've played Ingress for several months. One thing I do daily is recharging 20~30 portals during my commute by bus -- open Ingress after getting on a bus, waiting for the GPS to get fix, and collect XMs and recharge.
However, in the recent one or two months, my phone's not able to get me GPS fix near my home -- even on a square. GPS status shows many sats in yellow, but none becomes green. Rebooting the phone doesn't solve it.
When I get to another place, two or three kms from my home, my phone still can't get fix. What's strange is, if I reboot my phone there, and try GPS again, it usually gets instant fix.
Also, I can always get instant fix anywhere near my working place.
I have two questions:
1. Which of the software parts affects GPS performance? I switched among multiple ROMs during these months, but I should be always on cloudyfa's KK baseband.
2. Anyone else has encountered the situation that you stand on a square on a not-so-cloudy day, with no high building around, 24 sats in sight, but your phone just can't connect to any? Has anyone solved it? How?
Try using faster fix app and change the ntp to your location and see if that helps
danial.aw said:
Try using faster fix app and change the ntp to your location and see if that helps
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Thanks. That didn't make any difference.
coolcfan said:
Thanks. That didn't make any difference.
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Download GPS Test from the Play Store, go to the app settings and press Update A-GPS while your data connection is on. Wait a few moments and the app should lock on to GPS satellites. You should be good to go from there.
robogo1982 said:
Download GPS Test from the Play Store, go to the app settings and press Update A-GPS while your data connection is on. Wait a few moments and the app should lock on to GPS satellites. You should be good to go from there.
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GPS Status from play store also has that A-GPS downloading feature, and that's not helping me either.
If not changed nothing in software that can cause bad reception (build prop edit, rom, ...) try something hardware
Réparer en 5 minutes le GPS LG g2: http://youtu.be/UdDJqFxpRy8
siggey said:
If not changed nothing in software that can cause bad reception (build prop edit, rom, ...) try something hardware
Réparer en 5 minutes le GPS LG g2: http://youtu.be/UdDJqFxpRy8
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Thank you! Good video. I will try it after having tried all software ways.
Which properties in build.prop affects GPS performance? I'd like to check them first.
Also, try TopNTP app before opening up the phone.
I've been through a few smartphones and running various ROMs on each, here's my observation.
a. If the phone's gps takes long time but eventually locked then those apps mentioned above do help.
b. If the phone's gps take long time and never locked then those apps above are useless, they won't do a thing.
My advice 1: restart the phone and see the gps gets locked reasonable fast, if not
My advice 2: changing ROM. Do focus on firmware first before touching hardware.
Long time means 15' or more.