Database Users

GPS

I cant seem to get my GPS working all the time. I've got some Freecaddie software but the GPS seems to work when it wants. What do I need to do to get it to work everytime I use the software?????

It should work out of the box, and works very well.
For the first fix though, stand under open sky for a while.

Are you using the GPS indoor? Getting a fix indoor is quite difficult and not possible in most cases until you are not standing next to a window.

i have a similar problem, i´m using igo on my hd and it worked very good in the beginning, but since a while when i start it, it gets a normal gps fix but then the gps connection only lasts a few seconds (5-6) and then looses connection for about 30 secs and when it finally finds it again it lasts again only 5-6secs...
can anyone help me? it´s very annoiying when i´m in a foreign town where i don´t have a good orientation and my navi system won´t help me at all

Hmmmmm - this should work "out of the box" whenever you use a GPS application.
Try this free app: Chartcross GPS Test 1.04 http://www.chartcross.co.uk
It will scan for a GPS device if you have one (as HD does).

that´s not my problem, igo finds my gps receiver...

GPS signal dissapears for 30 seconds then re-appears.
This is resolved by a soft reset, although in one case (When I actually was lost) it took 6 consecutive soft resets to finally start working whereas normally it only takes one or two...
I would be very interested to hear if anyone has a resolution to this issue?? or any idea's what may cause it not to work properly before one or two soft resets??

mine kept stopping for 30 seconds while I was driving, soft reset is a bit of a pain.. does QuickGPS help ?

mikewd said:
mine kept stopping for 30 seconds while I was driving, soft reset is a bit of a pain.. does QuickGPS help ?
Click to expand...
Click to collapse
Definitely, having QuickGPS updated won't hurt. Some people says it doesn't help much, but it should. It downloads updated data from satellites so that the internal GPS does not need to wait for that info. Anyway, GPS worked for me out of the box, without QuickGPS; it does the work very well and is quick fixing the position. Try GPS Test, as said above.

I have Duffy's 1.7 ROM (and admittidly this issue has only started since I loaded this ROM, Quick GPS is on, but shouldn't affect anything ONCE the satalites are locked... what happens is the satalites pick up for 30 seconds then off for 30 seconds then on then off ad infinitum. I use Tom Tom 7 and CheckPOInt, other than that fairly standard apps... core player etc. At the mo I'm just in the habit of soft reseting before starting GPS, from a soft reset button in touchflo programs its not so bad. Anyone else experiencing this exact thing of 30 on and 30 off??

The problem of losing GPS regularly happens if you have assisted GPS active. Uncheck this and all will work fine.

Does it still lock on fairly quick without Agps? I must admit I have not tried yet.
I have a problem where I've tried TomTom7 and in the GPS status screen it shows up to 7 or 8 satellites really quickly (maybe 10 seconds) then they all disappear a few seconds later, and it says something like "Are you sure you aren't inside a building?" (yes, I just didn't notice obviously!), then a few seconds later they all appear again & then off & on etc.
It's annoying but when they are showing they give a relevant position and speed.
Is this the same problem? No-one knows what is causing it I assume?

Crett, ( and a bunch of you above) sounds like you have AGPS enabled. AGPS (assisted GPS) must be disabled or it will do exactly what you are describing.

Cheers, and yes, I have got Agps activated. But it doesn't explain why it happens though.
Does the gps still work well without the download assistance?

It works flawlessly without AGPS and from what I remember (not 100% on this) , the AGPS is a bug through all HDs (drivers prolly) might even be throughout other htc phones

Svegetto said:
It works flawlessly without AGPS and from what I remember (not 100% on this) , the AGPS is a bug through all HDs (drivers prolly) might even be throughout other htc phones
Click to expand...
Click to collapse
as i understood it, if your cellphone provider does not submit a proper agps signal, the htc always resets the gps with the faulty data. so switch of agps.

how do I disable agps??
cheers

Start, Settings, System, AGPS Settings, Disable.
And yes, it's working fine with it disabled.
Thanks

viczena said:
as i understood it, if your cellphone provider does not submit a proper agps signal, the htc always resets the gps with the faulty data. so switch of agps.
Click to expand...
Click to collapse
hmm haven't heard that but good to know. Now is the problem that htc coded it wrong (waiting for a wrong signal that doesn't come?)? That would be my take on it, since i haven't heard of anyone having the agps working (otherwise I'd think it would be the cell companies fault).

not sure if this helps, but i was just pratting around with settings in tomtom as mine was loosing signal every 30secondstoo. changed to max baud rate on com 4 and its now working sweet as

GPS initial lock problem... Still

Fix applied and still having initial lock issues...
Power off and back on to test initial locking...
Lbstestmode is taking about a minutes to obtain a lock, while maps and gps test is taking up to 15 minutes if used for initial lock.
Once the initial lock is obtained, all is fine until next power, or long sleep
Am I alone?

My gps settings are default except I have changed standalone to MS-based and accuracy to 100. What I do is if the gps isn't locking really fast, I delete GPS data then run a get posistion test for a minute or three. I usually get between 10-14 satellites. Afterwards, my gps locks on very quickly and accurately. The fact that I have to clear GPS data and re-run the posistion test leads me to believe (or should I say hope) that the gps problem is software based.

Chalup said:
My gps settings are default except I have changed standalone to MS-based and accuracy to 100. What I do is if the gps isn't locking really fast, I delete GPS data then run a get posistion test for a minute or three. I usually get between 10-14 satellites. Afterwards, my gps locks on very quickly and accurately. The fact that I have to clear GPS data and re-run the posistion test leads me to believe (or should I say hope) that the gps problem is software based.
Click to expand...
Click to collapse
If I power off/on, I also have to run the get position test for several minutes, then all is fine. I'm not sure if power is what causes it to loose its data, or time plays a factor...

dalepa said:
If I power off/on, I also have to run the get position test for several minutes, then all is fine. I'm not sure if power is what causes it to loose its data, or time plays a factor...
Click to expand...
Click to collapse
Yea I have the same problem. Time definitely plays a factor, because when I go to sleep and wake up I have to clear the data then run the position test. But once I run the position test, the GPS locks on very, very quickly and accurately, which makes me feel hopeful that an OTA update could fix the problem. But since I bought the phone off contract I have 30 days to return...so if Samsung doesn't official release a statement by then I may have to return this amazing phone

Chalup said:
Yea I have the same problem. Time definitely plays a factor, because when I go to sleep and wake up I have to clear the data then run the position test. But once I run the position test, the GPS locks on very, very quickly and accurately, which makes me feel hopeful that an OTA update could fix the problem. But since I bought the phone off contract I have 30 days to return...so if Samsung doesn't official release a statement by then I may have to return this amazing phone
Click to expand...
Click to collapse
I installed flixster and it tried to locate me via gps and couldn't...after I closed flixster, the gps was still open (still trying to get a signal) and sucking my power... Looks like it may mainly be an issue indoors
The gps initial locking issue needs to get fixed soon! My wifi only iPad locates me every time in about 2 seconds
It's going to suck if this great phone is flawed by gps

[TIP] GPS Issues Workaround

Obviously Samsung has no idea how to write proper drivers for Android phones running the QSC6085. I found a workaround that fixes any issues with GPS.
It's completely simple, turn off WiFi and 4G when you're trying to get a lock.
Proof 1: I stood outside in broad daylight with clear skies connected to my home's WiFi network. Using GPS Test, my phone discovered 12 satellites and made 0 connections for 3 minutes. I closed the app, disabled WiFi (used 3G) and I got a lock of 4 satellites within 15 seconds and 6 - 8 after another 15 seconds.
Proof 2: I left my house and went straight from WiFi to 4G. I got in the car and turned on Google Navigation. I set it to my destination and waited for a lock. After a minute I turned off 4G and got a lock within 15 seconds.
THIS PHONE HAS NO MAJOR GPS ISSUES. Obviously these are simple bugs and I have no doubt in my mind that Samsung is aware of these and will fix them in the next update.
Other GPS bugs I've noticed:
No matter how many satellites I have locked on, my accuracy has never gone below 30 meters.
SNR numbers are really low. According to a leaked ROM for the Vibrant, this can be fixed.

K.. I checked your tips..
3g only[Inside Apt] -- floats between 7 and 8 sat and usually 6-7 locks
Wify Only[Inside Apt] -- Solid 9 satalites and 7-8 locks
4G[no wifi] : stopped with 4 sat and 4 locks but I noticed that my 4g likes to sleep

Yes, it seems that when using WiFi, that updated ephemeris data is not being transmitted, however, it's not bulletproof - after a day or so, it'll try to lock, the 3G connection will go dormant, and it'll just sit there...

I have three epics and have been working with *#1472365# settings and testing for about a week.
I am concerned you maybe getting a false positive on repair of the main problem until you confirm, with no resets and further changes to *#1472365# (which reset the cache) that 24 hours later and in a diffident position you do lock most sats Epic sees.
There are a dozen things you can do to flush out the xtra data cache, just none that I have found that persist and to it regularly (ideally with a couple hours at most for ephmeris, and a day o r two for alamanc). Most proper aGPS implementation will also give the device a minute on warm/hot start, and if is seeing and not locking, grab new assistance data from the best source (first choice network, second birds)
I do think sammy is teid itself up in knots with drivers because of the many different agps environments Galaxy S is sold in. It goes way beyond GSM v CDMA, but also even bigger considerations, like agps data source adn methods, and even whether the device is in a unlimited data carier environment (like our epics) or not.
have you done any testing with the xtra settings themselves? seems to me that is where the rubber hits the road?.

aero1 said:
have you done any testing with the xtra settings themselves? seems to me that is where the rubber hits the road?.
Click to expand...
Click to collapse
The only change I've made with my phone's *#1472365# settings is setting it to Cold Start to save battery. I know in testing builds of the Moment aGPS addresses were set to internal testing ones that didn't work.

No problem with GPS here. I use Navigation and CoPilot and both pick me in seconds. Navigated from the mechanics workshop today just to test it out and worked like a charm. Guess some have it and some don't.

yes me too, and further, with speedtest app, the only way i can get it to lock on a server that is near me is to have wifi on when I start the app, then it locks on my server, otherwise, it has me 1500 miles away as closest server.

LordLugard said:
No problem with GPS here. I use Navigation and CoPilot and both pick me in seconds. Navigated from the mechanics workshop today just to test it out and worked like a charm. Guess some have it and some don't.
Click to expand...
Click to collapse
No, we all have the same bug and Sprint Device team is trying to get samsung on it.
You just haven't been in a condition where it occurs, whcih is turning on GPS in a different location say 8 hours later absent flushing the cache.
The Epic doesn't properly check the cache for staleness, so everyone who uses GPS will come up on this problem eventually. It is a bug Samsugn has had before.
arashed31 said:
The only change I've made with my phone's *#1472365# settings is setting it to Cold Start to save battery. I know in testing builds of the Moment aGPS addresses were set to internal testing ones that didn't work.
Click to expand...
Click to collapse
the reason why I am asking is Epic has in that debug menu are setting to set time for attempts as well as flushing the cache manually. It would be interesting if we could get that going.
the reason I say so is cold start is a good workaround but it will murder GPS TTFF (time to first fix) in non network conditions. It will make it worse than standalone. Literally every time you start it will be a cold start and you will have to wait for almanac, which is 5 to 15 minutes if outside of network coverage. That is what I am seeing with cold workaround. I am still playings with forcing warm
Are you seeing that? with cold stat set, enable airplane mode, restart Epic, restart GPS and see what happens.

arashed31 said:
I found a workaround that fixes any issues with GPS.
It's completely simple, turn off WiFi and 4G when you're trying to get a lock.
Click to expand...
Click to collapse
This method did not save me today, when after letting my Epic's GPS go unused for > 24 hours I tried to get a lock with WiFi and 4G disabled. Multiple satellites were visible, but only two were used. Gave up and rebooted. After which, almost immediately, I got 8 out of 9.

boomerbubba said:
This method did not save me today, when after letting my Epic's GPS go unused for > 24 hours I tried to get a lock with WiFi and 4G disabled. Multiple satellites were visible, but only two were used. Gave up and rebooted. After which, almost immediately, I got 8 out of 9.
Click to expand...
Click to collapse
Yes I think the OP got hit with what hit us in all testing. That is why i am doing careful controlled tests. Since the main issue has to do with failure to consistently and properly remove expired and invalid assistance data cache lots of things may be removing that cache, for example any changes to that cause a reset.
Right now the only consistent way to remove it without user intervention is to go into the debug and set as cold start. The problem with that is it introduces a new problem affecting standalone TTFF, ie once you get outside of data range you will do worse TTFF than dedicated handlheld GPS units that keep almanac in ephemeris.
This problem is akin to some condition where the phone will freeze and not make calls if you don't use it in 24 hours but most people didn't realize there was a time consideration. 90% of the people would be saying there is no bug or that they have a fix.
to test any fix you have to:
get a gps location.
not use GPS for 12 hours or move location significantly.
do not reset or action that inadvertently fushes cache.
test again.
In every case and attempted workaroudn with this test but cold start hack I cannot get a gps fix on any of our three epics.

@aero1,
The complication in my last case is that I was in Cold Start mode. Maybe I just didn't give it enough time.
Sent from my SPH-D700 using XDA App

boomerbubba said:
@aero1,
The complication in my last case is that I was in Cold Start mode. Maybe I just didn't give it enough time.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Cold start set in *#, data connection on, clear sky and no fix within 30 seconds? Please say it isn't so.

aero1 said:
Cold start set in *#, data connection on, clear sky and no fix within 30 seconds? Please say it isn't so.
Click to expand...
Click to collapse
That's the setting alright. I think at first I had 4G enabled when I started GPS Test. But the first thing I did was disable it, thus defaulting to 3G, with GPS Test still running.
But it's possible I didn't give it enough time to lock. I was in my car and perhaps too impatient. I may have given up and rebooted after less time than that.
Since then I have left Cold Start set, and have not experienced a no-lock error condition again. But I have rebooted a couple of times for other reasons. When I started my commute home this afternoon and started GPS Test, it was slow to lock but it came around to a full lock in a minute or so.

I've been using the GPS quite a bit this past week. I've had no problems getting a fix except for onces. It was due to the typical bug (find satellites but not connect). I went into the GpsTest shortcut and set it to Hot Start then back to Cold Start. Immediately the GPS started working again.
Switching back and forth clears the GPS cache and fixes this issue. To me, that's the only problem this phone has. As far as I know, this can be an INCREDIBLY EASY fix if anyone can go into the source and put in a way to periodically clear the cache.

JI2:Enable MS-Based mode for a faster lock

For me, my GPS problems have been mostly fixed with the latest firmware.. however the lock still takes about 15 seconds.
To enhance (not fix, it's not a fix) this..
Install AnyCut (not in the market for some reason), select "new shortcut" and go down to LbsTestMode.
Open it, select MS-Based mode and back out of it. Don't change anything else as you're liable to make GPS worse.
Now you should get a lock in 1-3 seconds, very quickly. If your phone is not getting a lock disable WiFi.
http://hotfile.com/dl/69783008/f2fffb0/anycut.apk.html
Click to expand...
Click to collapse

heygrl said:
For me, my GPS problems have been mostly fixed with the latest firmware.. however the lock still takes about 15 seconds.
To enhance (not fix, it's not a fix) this..
Install AnyCut (not in the market for some reason), select "new shortcut" and go down to LbsTestMode.
Open it, select MS-Based mode and back out of it. Don't change anything else as you're liable to make GPS worse.
Now you should get a lock in 1-3 seconds, very quickly. If your phone is not getting a lock disable WiFi.
Click to expand...
Click to collapse
And much better tracking as well. My Tracks did much better when I turned it off standalone to MS Assisted.
http://maps.google.com/maps/ms?msa=0&msid=201142930973527917117.00049060180af6659398c

wow. First lock after flash was great, then after the days go it gets worse, basically back to before. Changing this, I opened my front door, pointed the phone out, turned on gps and opened gps test. Instantly like 5 seconds I got 6 satellite locks.
Awesome, obviously will see after a few days how it works. So far that helped alot.

It's never gone to what it was like before (ever) but I've noticed some bugginess with aGPS.
Over WiFi it won't download new information & lock. I've had to disable WiFi for it to lock on a position.
Sometimes when going from 3G to E, it will lose the lock. Is this horrible? No. Can it be corrected? Yes.. can the Vibrant accurately track our location? Yes.
MS-Assisted is only good for stationary locks quick one time fixes but not actual tracking. MS-Based is for tracking..
http://maps.google.com/maps/ms?hl=e...22653250295432.00049063685873acbe8e0&t=h&z=14

heygrl said:
It's never gone to what it was like before (ever) but I've noticed some bugginess with aGPS.
Over WiFi it won't download new information & lock. I've had to disable WiFi for it to lock on a position.
Sometimes when going from 3G to E, it will lose the lock. Is this horrible? No. Can it be corrected? Yes.. can the Vibrant accurately track our location? Yes.
MS-Assisted is only good for stationary locks quick one time fixes but not actual tracking. MS-Based is for tracking..
http://maps.google.com/maps/ms?hl=e...22653250295432.00049063685873acbe8e0&t=h&z=14
Click to expand...
Click to collapse
Could not get a lock on MS Based. It saw 6 sats and they were all at the same position way off the compass on GPS status. Let it run for 10 minutes on 3g and it lost all but 2 sats. Change it back to MS Assisted and I get 10/10. Maybe I need to clear data.

At this point I am pretty sure that the settings in lbstestmode only affect the tests in lbstestmode. All other applications appear to use the settings in gps.conf or somewhere else.
Changing the settings in lbstestmode appears to affect other apps temporarily due to hot start mode but after reset the phones are going back to default anyway.

snowdogging said:
At this point I am pretty sure that the settings in lbstestmode only affect the tests in lbstestmode. All other applications appear to use the settings in gps.conf or somewhere else.
Changing the settings in lbstestmode appears to affect other apps temporarily due to hot start mode but after reset the phones are going back to default anyway.
Click to expand...
Click to collapse
Well you can test it yourself. It's too soon to say much of anything. It takes time to determine anything with this phone. If nothing changes it will be noted in a day or two when the hot fix is lost.

heygrl said:
Well you can test it yourself. It's too soon to say much of anything. It takes time to determine anything with this phone. If nothing changes it will be noted in a day or two when the hot fix is lost.
Click to expand...
Click to collapse
Yeah it is just plain buggy. Sometimes lbstestmode seems to change gps.conf but not always. The use SSL setting doesn't seem to be changed but sometimes it does change the SUPL host.
Another strange things in test mode is turning on MS Based and then clearing GPS data. Sometimes when I do that and then run the get position test I can see my 3G turns on and it pulls the list of satellites. 10 satellites found in a couple seconds...great. If I then go back and clear the GPS test data again and go back to the same test it sits at zero satellites and never pulls a new list. WTF...completely unpredictable behavior....sigh.

Just drove about 5 miles. Locked instantly and very well.
My track. http://maps.google.com/maps/ms?msa=0&msid=203177861999786056973.0004906582f910d2e8a53
Too early to tell yes but Ms based doing me good for sure. http://maps.google.com/maps/ms?msa=0&msid=203177861999786056973.0004906582f910d2e8a53

3x GPS for Vibrant fixed for J16 & Froyo Azura **Added Videos**

Hey everyone.
I managed to finally get GPS to lock quickly, indoors.
I'm an advanced user, and i've done everything from upgrading to j16, going back, trying all the different settings, going to Froyo, mods, and back etc....all of which did not work.
Note, I had an N95 -> N86 Nokia phone which ALWAYS locked on (aGPS) in less than 5 seconds, always. So you understand my major disappointment with Samsung with its failure to lock within seconds.
These are my steps:
1) Followed the steps as posted by digitaltoddy:
You'll need to get into LBSTestMode by entering *#3214789650# from the dialer. Press Delete GPS Data, this will get rid of the bad GPS information that is probably still stored in your phone. Go to Application Settings and set the Start Mode to 'Cold Start'. Reboot your phone and go outside, run an app like GPS Test and let it lock onto as many birds as it can, once you get a good number (at least 5), go back into your LBSTestMode --> Application Settings and set the Start Mode back to 'Hot Start', reboot and all should be merry.
2) After the restart, get back into LBSTestMode and change the Server FQDN Type to "Auto Config." I've tried this with Custom Config with the stock server (spirent-lcs) and google server (supl.google). Auto config works about 2000% better.
My Test Procedure: (Indoors!)
1) Get into LBSTestMode (*#3214789650#)
2) Delete GPS Data
3) Set to "Cold Start"
4) Reboot Phone (Removal of battery)
5) Get into LBSTestMode (*#3214789650#)
6) Do position test
To note: I used digitaltoddy's method and was unable to get desirable results for 3 phones. So I can't be sure whether his method, or that the Server was set to Auto Config which fixes the GPS.
I'm posting up a YouTube video now, but I don't think I can link it up because i'm a noob on this forum . On the video, I show how quickly it locks on "Auto Config" indoors
Good luck.
1st Vibrant -> JI6
2nd Vibrant -> Froyo Azura (YouTube video)
3rd Vibrant -> JI6
Update:
1. youtube.com/watch?v=QllAKdYNIXY] (Working on Froyo Azura)
2. youtube.com/watch?v=dPFfxgMVUa4 (Working on JI6)
3. youtube.com/watch?v=zjlEPntqfLA (Not working on JI6, switched to Auto -> Viola! Fixed)
Usually under 10s. Remember, the tests are all COLD STARTS AND INDOORS.
***Can a mod please un-restrict my account so I can link up those vids?***

^^ Great thread...
Bump! Sticky!!
Sent from the helm of darkness called, the "Vibrant Galaxy"... Using the XDA App!

tanlouis said:
Hey everyone.
I managed to finally get GPS to lock quickly, indoors.
I'm an advanced user, and i've done everything from upgrading to j16, going back, trying all the different settings, going to Froyo, mods, and back etc....all of which did not work.
Note, I had an N95 -> N86 Nokia phone which ALWAYS locked on (aGPS) in less than 5 seconds, always. So you understand my major disappointment with Samsung with its failure to lock within seconds.
These are my steps:
1) Followed the steps as posted by digitaltoddy:
You'll need to get into LBSTestMode by entering *#3214789650# from the dialer. Press Delete GPS Data, this will get rid of the bad GPS information that is probably still stored in your phone. Go to Application Settings and set the Start Mode to 'Cold Start'. Reboot your phone and go outside, run an app like GPS Test and let it lock onto as many birds as it can, once you get a good number (at least 5), go back into your LBSTestMode --> Application Settings and set the Start Mode back to 'Hot Start', reboot and all should be merry.
2) After the restart, get back into LBSTestMode and change the Server FQDN Type to "Auto Config." I've tried this with Custom Config with the stock server (spirent-lcs) and google server (supl.google). Auto config works about 2000% better.
My Test Procedure: (Indoors!)
1) Get into LBSTestMode (*#3214789650#)
2) Delete GPS Data
3) Set to "Cold Start"
4) Reboot Phone (Removal of battery)
5) Get into LBSTestMode (*#3214789650#)
6) Do position test
To note: I used digitaltoddy's method and was unable to get desirable results for 3 phones. So I can't be sure whether his method, or that the Server was set to Auto Config which fixes the GPS.
I'm posting up a YouTube video now, but I don't think I can link it up because i'm a noob on this forum . On the video, I show how quickly it locks on "Auto Config" indoors
Good luck.
1st Vibrant -> J16
2nd Vibrant -> Froyo Azura (YouTube video)
3rd Vibrant -> J16
Update:
youtube.com/watch?v=QllAKdYNIXY
Usually under 10s. Remember, this is a COLD START.
Click to expand...
Click to collapse
If one/both of these doesn't fix someone's GPS, then that someone is a liar. +1 to you sir

bookmarked for future reference!

I posted two new videos to prove my findings.
You can see in the video, when put into "Custom Config," nothing appears for a long time. If you wait longer, you'll get one or two satellites - thus showing that aGPS isn't working.
I turned it to the "Auto Config", and an entire list of 11-12 satellites showed up in a matter of seconds, locking in 32 seconds.
I have tried supl.google.com 7276 and it too, doesn't work. Try it for yourself

AGPS is dependent on the network to work properly and IS NOT TRUE GPS! If you can't get GPS to work in standalone then it isn't a fix, simple as that.
Sent via XDA app on my Samsung Vibrant
[ROM»Froyo•Macnut•R12]
[Kernel»B•Stock•1120•100]

Dude.
Its clear that the aGPS function on the phone itself DOESN'T work on Custom Config, and does on Auto Config as shown in the video.
My locking time was brought down from 5-15 minutes to 30 seconds. How is that not a fix?

tanlouis said:
Dude.
Its clear that the aGPS function on the phone itself DOESN'T work on Custom Config, and does on Auto Config as shown in the video.
My locking time was brought down from 5-15 minutes to 30 seconds. How is that not a fix?
Click to expand...
Click to collapse
aGPS won't work if you don't have data.

Yes, AGPS requires data while standalone allows the GPS to in airplane mode. I know this because I use maps from my SD while in that mode. There's also no such thing as J ONE SIX. It's J EYE SIX.

so the GPS problem is finally resolved?

jonjonk said:
so the GPS problem is finally resolved?
Click to expand...
Click to collapse
aGPS will work with data. If you don't have data, use GPS code newer than JKF and do the LBSTestMode thing and it will work. Not new information

For some reason I can't change the config back to auto? It's greyed out and set to custom config...

did not worked for me... only ROM I'm able to get a fix is with Macnut R10,, any other ROM and my GPS is worthless

did not work for me either. I stood out in the freezing rain for 10 mins and no lockons... had 8 in view after 3-4 mins but would not lock on...
obsidian V3 rom

Siks said:
AGPS is dependent on the network to work properly and IS NOT TRUE GPS! If you can't get GPS to work in standalone then it isn't a fix, simple as that.
Sent via XDA app on my Samsung Vibrant
[ROM»Froyo•Macnut•R12]
[Kernel»B•Stock•1120•100]
Click to expand...
Click to collapse
Since when has there been a problem with the standalone GPS?
The aGPS has always been the culprit on this phone. When aGPS is disabled, it's worked fine.

Here is my comparison:
1. Auto Config - initial lock in 145-178 seconds with 45 meters accuracy.
2. Supl.google.com - initial lock in 4 seconds and lock on 9 out of 11 satellites with 5 meter accuracy in 30-40 seconds.

I appreciate the post and glad it helped for some, but no luck for me. I went throught the entire process, also spent about 10-15 minutes standing in poor weather, finally got a lock on 5 satellites.
I decided on a real world test this morning and used my GPS to navigate me to work. I have a short commute, only about 10 minutes, less than 10 miles. The GPS lost track of my position numerous times, had me on side streets, off the freeway, all over the place. In short, it's the same problem I've had all along...before JI6, after JI6 and after trying the fix noted in this post.
I love this phone, but the GPS sucks ass.

reuthermonkey said:
Since when has there been a problem with the standalone GPS?
The aGPS has always been the culprit on this phone. When aGPS is disabled, it's worked fine.
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There's always been a problem with the gps on this phone. Fixing agps as the op does here helps work around the poor gps initial locking performance, but the core accuracy issues remain, as are evidenced by the horrible tracks produced by this device.
Sent from my SGH-T959 using XDA App

Krzysiek_CK said:
Here is my comparison:
1. Auto Config - initial lock in 145-178 seconds with 45 meters accuracy.
2. Supl.google.com - initial lock in 4 seconds and lock on 9 out of 11 satellites with 5 meter accuracy in 30-40 seconds.
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Hey Krzysiek,
Thanks for your comparison. Strange, on my 3 phones, setting it to Custom did not work at all. Did you set it to Cold Start and clear the GPS data before you did the test?
Thanks

tanlouis said:
Hey Krzysiek,
Thanks for your comparison. Strange, on my 3 phones, setting it to Custom did not work at all. Did you set it to Cold Start and clear the GPS data before you did the test?
Thanks
Click to expand...
Click to collapse
I cleared the GPS data, but I did not set it to Cold Start.