Forced GPS Fix? - Epic 4G General

I just did this and now when I use my gps, it tracks exactly where I am, and not a block away from where i'm supposed to be. Before I played around with these settings, the GPS was off a bit. Try this out and post back.
Here's exactly what I did:
Stand outside while doing this.
Dialer - *#1472365#
Click Command.
TTFF Test.
Start GPS.
Let it receive a fix.
Exit.
Try it out. I don't know the exact technical details behind this, I am just stating that my GPS is magically working after this.
-Elixis

What you did by invoking that utility with the dialer code was to force the clearing of the GPS cache data. This one of several methods that will do so.
The "fix" is temporary. After the GPS cache becomes stale again after a period of hours or days, the problems can be expected to recur.
We need a permanent fix from Samsung and Sprint that will maintain the cache properly.

thank you for the details! what a shame...maybe soon then, since the problem has been pinpointed..

Related

GPS Issue When Traveling

I have meant to write about this before. I have really never had a major issue with my GPS once I got it unlocked. I do generally get fairly fast locks. However I do travel with my job quite a bit. It seems that every time I get off the plane & into a rental car. It takes forever to get a lock. It has taken me sometime as long as 45 minutes. Has anyone else experienced this or have an explanation. I have tried resetting my phone several times, tweaking the registry, & using Clean Ram.
I used to see this sometime with my Dell navigation system for my X51v.
jadesse said:
I have meant to write about this before. I have really never had a major issue with my GPS once I got it unlocked. I do generally get fairly fast locks. However I do travel with my job quite a bit. It seems that every time I get off the plane & into a rental car. It takes forever to get a lock. It has taken me sometime as long as 45 minutes. Has anyone else experienced this or have an explanation. I have tried resetting my phone several times, tweaking the registry, & using Clean Ram.
I used to see this sometime with my Dell navigation system for my X51v.
Click to expand...
Click to collapse
Honestly, some locations will give you more satellite lock-ons than others. Aside from that, you could use something like QuickGPS to get aGPS location based, so your device would connect faster... wild guess though
Use QuickGPS or or AstroLauncher, both work fairly nicely. With QuickGPS you have to update every week, but you get signal faster. With AstroLauncher there aren't any updates for satellite info, but it'll take a bit longer, around 5-10 minutes...
Again, long waiting times for locks is a general problem with the Vogue... I guess that is why the carriers decided to hide this feature (that and to try to stick you with data charges and propitiatory GPS software )

New GPS Issue!

After applying the GPS fix I am having an odd issue. When I fist launch google maps it shows me in some small rural village in China. Once the GPS gets a fix it goes to where I am really am. This would not be a big deal except when I take pictures it Geotags the picture as being in this Chinese village which is kind of a pain. Also it screws up my weather widgets sometimes. Any ideas? I was thinking maybe it has to do with the server it is using to pull down the GPS data, but not sure.
I am having a similar issue, but not quite as drastic. Mine just simply shows me being the last place i was before GPS was turned on. Like right now, without GPS connected but using the towers to figure out my location, it shows me at the place i at lunch, about 3 miles away, rather than at work. Its VERY frustrating.
I'm having the same problem. My GPS shows me in a neighboring city that is 50 miles away, every time.
The best way to test this is to load the 'Maps' live wallpaper. It happens every time. Also, booting up the 'Maps' application will throw me into the other city for at least five minutes, before it realizes that the data is not correct.
It's a new "google fortune" feature. It's telling you you need to travel the world.
Same problem here, however, I was thinking it had more to do with the "Use Wireless Networks" not updating my location.
-If I have gps turned off and wireless network location on. My location doesn't update at all until I reboot the phone (although Latitude shows it as being updated within the last few minutes, even though it shows me somewhere I haven't been in hours and is 50miles away.)
-If I turn gps on, it will then get a fix and properly update my location.
I did apply the GPS fix.
lol mine switches between seattle and SPAIN! wtf.
I think it has to do something with the way samsung implements the gps receiver..a friend had a sammie moment..she would be right next to me..nyc...but her gps would say shes in havana, cuba..on good days..some place in estonia..lol...and now i see the issues being replicated here...i blame samsung...my old trusty g1 locks a signal and is very accurate within a min or 2..
Thanks for the info, sync3. That's starting to become my thought as well.
What a shame. I hope an official statement is released, either way.
chastbi said:
Same problem here, however, I was thinking it had more to do with the "Use Wireless Networks" not updating my location.
-If I have gps turned off and wireless network location on. My location doesn't update at all until I reboot the phone (although Latitude shows it as being updated within the last few minutes, even though it shows me somewhere I haven't been in hours and is 50miles away.)
-If I turn gps on, it will then get a fix and properly update my location.
I did apply the GPS fix.
Click to expand...
Click to collapse
This is the EXACT problem I am having. I dont know how to get it to update my location.
I have the same issue. I also had applied the GPS fix... I've tried reverting to stock settings, tried enabling skyhook and tried a few other things.
The only way I've been able to properly get my location is to turn off the network assist and tell the GPS to operate in standalone mode. It takes a heck of a lot longer for a fix, but it's accurate if it does get a lock. Doesn't work so well indoors though.
Who the heck were the field testers for this device? its full of more bugs than an entymologist's labratory.
Clear your GPS data
heygrl said:
Clear your GPS data
Click to expand...
Click to collapse
That was one of the first things I tried. It didn't help.
My main concern is that this is unrelated to the GPS software issue and that this is actually a hardware issue. Does anyone agree or disagree with this?
pearlblues said:
My main concern is that this is unrelated to the GPS software issue and that this is actually a hardware issue. Does anyone agree or disagree with this?
Click to expand...
Click to collapse
I agree this is hardware related because others have reported exchanging their phones rids them of the GPS issues.. :-/
I work in Houston and sometimes while at work GPS says I'm in Pawcatuck, CT.
The question is when not using gps what function of the phone updates your location? Could it be a network issue? How do you force it to retrieve tower data that marks your location?
Sent from my SGH-T959 using XDA App
Well, i exchanged my phone last night because of this issue and the new one is doing the same thing. So either this is a problem inherent to this model (hopefully the software not telling the phone to refresh tower data) that can be fixed with an update or i am extremely unlucky.
pearlblues said:
Well, i exchanged my phone last night because of this issue and the new one is doing the same thing. So either this is a problem inherent to this model (hopefully the software not telling the phone to refresh tower data) that can be fixed with an update or i am extremely unlucky.
Click to expand...
Click to collapse
Just had my 3rd call with TMobile- she now assured me that this is a software issue (which i made her mark in my account incase it winds up being hardware later) and that all phones with software # T959UVJFD have it. She said tmobile is working with samsung to fix. I told her all Galaxy S series, domestic and international, have GPS issue and samsung has yet to fix any. She said well that is something you need to consider.
blink55184 said:
Just had my 3rd call with TMobile- she now assured me that this is a software issue (which i made her mark in my account incase it winds up being hardware later) and that all phones with software # T959UVJFD have it. She said tmobile is working with samsung to fix. I told her all Galaxy S series, domestic and international, have GPS issue and samsung has yet to fix any. She said well that is something you need to consider.
Click to expand...
Click to collapse
Wow, very helpful information. How they get this fix released ASAP.

searching for GPS

had the phone a couple of weeks and never tried the GPS on it ,so this morning decided to give it ago
in premuim navigation or google navigation it just says searching for GPS all the time with m3g on or off, out side with 3g on i get a spot on fix in no via that in no time but if i try to get the gps to get a fix it just keeps saying searching for GPS
i know it normally takes longer for its first ix and then should be ok but i cant get a gps fixe and yes GPS is enabled
any help would be great thanks
Just a update with 3 g on good navigation provides a fix and directions but with 3g off Google says mobile data lost,on premuim navigation it just searches for god and can not provide directions even with 3 g on
Sent from my Desire HD using XDA App
just a update after a bit of trying things out today
got GPS in car panel after a while and now it gets a fix very quick
premium navigation works well on 30 day trial and is very acurate for proximity to junctions etc,this does work with 3G turned off no problem (although 3 g does need to be on to activate the trial)tried it tonight in awful weather and never once lost the GPS during the journey
google navigation again gets a very quick fix but will not work unless 3G is on other wise you get the voice saying loss data connection when trying to plan the route
google maps very quick fix and only needed GPS on
locations, not sure how this is working but im sure even with just GPS on i was getting acurate info or maybe it was pre-cached info not sure
Thanks, this helpful.
So after you got your initial fix, the next time you start navigation, the fix was quick?
Did you also test that without using 3g, so creating a fix without 3g, and if so, was that quick as well?
paulus_01 said:
Thanks, this helpful.
So after you got your initial fix, the next time you start navigation, the fix was quick?
Did you also test that without using 3g, so creating a fix without 3g, and if so, was that quick as well?
Click to expand...
Click to collapse
yes fix without 3g was quick
mine just will not fix the GPS....it finds 8 satellites in couple of seconds, but then just keeps "determining position"
without a determined position, my nav app can't do anything (copilot btw)...
Anyone any suggestions?
paulus_01 said:
mine just will not fix the GPS....it finds 8 satellites in couple of seconds, but then just keeps "determining position"
without a determined position, my nav app can't do anything (copilot btw)...
Anyone any suggestions?
Click to expand...
Click to collapse
The same here.....
Antonio
Locations sadly does not work without data connection, even with gps turned on.
So whats the use of preloading the maps?
Sent from my Desire HD using XDA App
Pre-loaded maps?
matthiasdeblaiser said:
Locations sadly does not work without data connection, even with gps turned on.
So whats the use of preloading the maps?
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
Exactly! I pre-loaded with maps of Europe so as not to incur data charges - but Locations is useless without a data connection. How do you use the maps with GPS only? Does anyone know??
You guys are doing something wrong. I'm in Australia and Locations works fine without data connection after having downloaded the maps. It just takes some time to get fix (some 2 minutes) if it was a long time since I last got one. I can get directions fine without any data connection as well.
I'm also having problems with gps, worked fine when.I got the phone but now after I think the third ota update it just keeps searching if I only have gps switched on and not wireless networks. With wireless networks one (with or without gps, dosnt make any difference) I'm consistentlyplaced 2km away and it dosnt.improve the accuracy with time.
So I'm thinking that the updates have messed it up? Did email HTC support but nothing yet from that.
I'm always unable to get GPS fix, even if I'm in an open space. I used an app called "GPS Status", I was connected to 7/8 GPS satellite, but I wasn't able to get my position (in Maps, Locations, Latitude and Nav). How is that possible?
xazac said:
I'm always unable to get GPS fix, even if I'm in an open space. I used an app called "GPS Status", I was connected to 7/8 GPS satellite, but I wasn't able to get my position (in Maps, Locations, Latitude and Nav). How is that possible?
Click to expand...
Click to collapse
So you're not able to use navigation stuff? I'm still waiting to get mine, no availability here in Milan, but for me GPS is a critical feature, so if not works properly it will be a big deal!!! Let me know on that!!!
I've noticed that I am unable to get any GPS fix indoors, even when I am sitting close to a window. I presumed it was because I wasn't outside but this thread is worrying. I'll try to get a fix outside and report back. One thing's for sure - the GPS on the HD doesn't seem as good as the one on my Desire, which found GPS indoors.
bobbyelliott said:
I've noticed that I am unable to get any GPS fix indoors, even when I am sitting close to a window. I presumed it was because I wasn't outside but this thread is worrying. I'll try to get a fix outside and report back. One thing's for sure - the GPS on the HD doesn't seem as good as the one on my Desire, which found GPS indoors.
Click to expand...
Click to collapse
I can't get the fix even if I'm outside. I was in Rome in the past 3 days, and I never got the fix! The iPhone 4 worked fine...
UPDATE: I got a fix, pretty quickly, outside (in a city) but it is still unable to get one indoors - including on buses and trains. My Desire managed this.
Does the HD's sat nav work in a car? Are people using it for in-car navigation?
I had problems getting my GPS to get a fix, so I downloaded GPS test from market and noticed I actually had 11 satellites that i was connected to. When GPS test showed how accurate the tracking was I exited out of GPS test, and to my surprise I got a fix almost instantly in Google Maps/My Tracks and even Locations.
I then took a drive, first with my DHD laying in the passenger seat on the first trip, and then with the DHD in my inner pocket of my jacket. Using my tracks I recorded the route and it had tracked me perfectly on both trips. Only time it stopped tracking was when I went in to a mall, but it picked up again when I left.
I live in sweden and the car is not a convertible, and 3G was off.
If the gps test thing actually helped I do not know, so feel free to test and report.
edit: I tried it again and the only thing about gps test "helping" is to see when the DHDs gps actually get a fix. It seems to be slow as crap on fixating but once you get the fix it tracks you very good. Right now I'm indoors(wooden house out in the countryside) and I had to wait about 2-3 minutes with 8-12 satellites in use and standing near a window before it got my position. After that I went back to where I tried before and it is still tracking me with 15-30meters accuracy and currently 7-8 satellites in use.
Those with GPS issues can try this, remove the battery for 10-15 mins then try GPS app again, ports can get messed up if we try out multiple GPS apps, removing the battery for a length of time should clear cache and or memory. Just try it and report back.
I tried alreay couple times, no luck, only fix is reset phone, but not happy, working fine couple days, and issue again, reset again, really not happy, this only one thing i am not happy on my dhd. ANY ADVICE or HELP ?? thanks..
Hello,
I have some problems too with my GPS. Some times the fix can be very quick but it’s not systematic.
What I noticed:
- When I activate the GPS option all the time, the fix is almost always fast. Sometimes it’s still very long: so in GPS status I reset the cache and the fix is after very quick.
- When I activate the GPS only when I need (turn on and turn off before and after using Navigation), I never get a fix. Resetting the cache in GPS Status or restarting Android does not solve the problem. So I launch several times GPS Status to reset cache and several times Navigation and after a while I can get a fix…. I think there is a real problem with the management of the GPS, because in GPS status I can see 11 satellites and Android is still searching!!!
Is there anyone who noticed that turning on and off GPS can seriously degrade the performances to get a fix?
I done few very similar things, clear cache, reset phone, but still I had feeling something was wrong, then I find I had faulty gps receiver, hardware issue, replaced for new one, thanks to very good store manager, and now I have black DHD, before was brown, and already new one is have all latest update installed, GPS lock in couple seconds anytime on open air, inside house It will lock in around 1 - 2 minutes longest, no more resets, no more clearing cache, working on 100 %..., this is just what I find myself, and I glad I had replaced mine old for brand new - and not just repaired..
Damned, I hope this is not an hardware issue ! Maybe you have some updates installed on your new phone which solve the problem ?
Is there anyone who noticed the same issues or I am the only one ?

GPS aquistion on stock EC05

Folks I am now seeing symptoms of stickiness in the GPS cache on both our ec05 Epics. The symptom is GPS on, application requiring GPS on, and the device not obtaining any GPS after several minutes optimum conditions, followed by a battery pull and a GPS acquisition within a few seconds.
This was a known issue on older firmware, one I never saw with eb13, which I had for a month, but which has returned on both our epics wiht EC05.
Lets track this to see if anyone else has this. Please do not cloud thread with discussions of accuracy or results one sees within a couple of days of any reset.
I've been of EC05 about a week now and its gps works fine for me so far.
hienkhieu said:
I've been of EC05 about a week now and its gps works fine for me so far.
Click to expand...
Click to collapse
Did you experience the known bug we had for six months before EB13?
aero1, noticing the same thing. Very disappointed. EB13 seemed to work perfectly. Now it's back to old antics. However, it's more variable than before - I've switched off my Airave, and it seems to be a bit better.
I am seeing something like this.
My weather app for instance; has the next town over from me. If I open Google Maps; the cursor is in the next town; but then after a few seconds locks correctly.
If I close Google Maps and reopen it, its back in the tow next to me.
I tried to clear the AGPS stats using GPS Status (from the market).
It just seems to not be updating or remembering where I am; don't know why that is.
I'm sitting on a 48hr uptime and still pulling GPS indoors with accuracy within 1m.
jdelano said:
If I close Google Maps and reopen it, its back in the tow next to me.
I tried to clear the AGPS stats using GPS Status (from the market).
Click to expand...
Click to collapse
GPS status' clear cache and download new assistance has never worked on epic. I spoke with developer some months ago and assistance data cache of samsungs is different than GPS status uses.
Town next to you could be because you are using "use wireless network" (which you should have off for this testing).
styckx said:
I'm sitting on a 48hr uptime and still pulling GPS indoors with accuracy within 1m.
Click to expand...
Click to collapse
Accuracy has never been the problem with epic (although reported accuracy is a fixed bug.
And this cache bug was present on all pre eeb13 epics, it is just a question of user habits that makes a difference on if you see it. Did you see it before eb13?
APOLAUF said:
aero1, noticing the same thing. Very disappointed. EB13 seemed to work perfectly. Now it's back to old antics.
Click to expand...
Click to collapse
pre release eb13 with original kernal had some GPS problems but latter version including the official eb13 finally fixed the issue present since September. I was so happy. I am still testing but am 90% sure it is back as well.
The cold start workaround that worked great for us was disabled in EB13 and is still disabled in EC05. Has anyone got a working ## sequence to get to the GPS debug/settings menu?
@aero1, today seems to be much better - haven't had any lock problems, either WiFi or 3G. Perhaps there were some issues with the assistance server yesterday? I couldn't get a lock for the life of me yesterday, but as of today (with no reboots), I've gotten a lock every single time, over all data interfaces. Have you noticed any improvements?
APOLAUF said:
Perhaps there were some issues with the assistance server yesterday? I couldn't get a lock for the life of me yesterday, but as of today (with no reboots), I've gotten a lock every single time, over all data interfaces. Have you noticed any improvements?
Click to expand...
Click to collapse
I rebooted in the past 24 hours for other reasons so I wont expect to see a problem for anther day. And any problem with data connection, not jut assistance server, would mimic the old issue.
I've seen similar problems to the old DK28. Didn't have them with EB13, they do seem to be back to a certain extent with EC05.
GPS status' clear cache and download new assistance has never worked on epic. I spoke with developer some months ago and assistance data cache of samsungs is different than GPS status uses.
Town next to you could be because you are using "use wireless network" (which you should have off for this testing).
Click to expand...
Click to collapse
Thanks!! I will shut off using the network and test for a few days.
(don't know why that didn't come to mind .. age i guess... hehehe)
EDIT: I turned off the use network in GPS and my GPS is much better. Thanks again for pointing that out aero1.
I really do wonder if there was a problem with the backend on the assistance servers - after 41 hrs of uptime, I'm still getting locks every 4-5 seconds - with 8 hours inbetween attempts, on EC05. The first day we had EC05, I had a miserable time getting locks, with a reboot required constantly, but I must say, it's been behaving much better.
APOLAUF said:
I really do wonder if there was a problem with the backend on the assistance servers - after 41 hrs of uptime, I'm still getting locks every 4-5 seconds - with 8 hours inbetween attempts, on EC05. The first day we had EC05, I had a miserable time getting locks, with a reboot required constantly, but I must say, it's been behaving much better.
Click to expand...
Click to collapse
Not an issue with the assistance servers. I could tell because in all cases I had no lock after a few minutes, I get near instant a-gps locks with a reset meaning cache is cleared and cache is successfully populated from assistance server
I looked into this a bit. While I was unable to locate the root cause of the problem (I suspect it's in the ril or radio), I've implemented a workaround that simply downloads time & assistance data every time the "Use GPS satellites" or notification widget toggle is enabled.
Would folks who have problems with the GPS in EC05, especially if they temporarilly resolve after a reboot, mind testing the workaround? It's not a perfect solution, but it may make the problem much less annoying than it presently is.

GPS stopped working

GPS stopped working, used before GPS test it worked very well but now it only view satellites but not fixing any waited outside on clear sky for 1h and nothing, asked nokia support for helo but they said clear the cache od gmaps (lol) i did and nothing, also did factory reset and still not working.
Any solution please?
Sry for English.
I see no cellular signal, looks like there is no sim card. I wonder if that could be a problem? Probably no, but still might be worth a try.
I have the exact same issue. Would be great if anyone knew what could be causing this.
There is an accuracy setting of GPS. I wonder if fiddling with that one would change anything. Otherwise sounds like a hardware problem. Warranty should cover it.
Also, maybe try updating the phone.

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