yashsingh1/xdaforums huggingface dataset:
[Captivate Android Development] bamonkey:
old phone with GPS issue had a different problem and i had to replace it.. the new one is awesome and seems to have fixed the gps issue as well. sadly that puts me on the "bad hardware" side of the fence but like ive said if we get a software fix in place for the rest then count me amazed. heres a recent google track. it started to have problems on a round turnout exit but it wasnt anything bad and im actually impressed with how well it still tracked my circle turn LOL.

http://maps.google.com/maps/ms?ie=U...998399949646482847.00049389d600836353d84&z=11
[Captivate Android Development] tazman171:
Looks good on the freeway but once you have side streets the gps want to go onto them, mine does that too. It was really bad but it's preety minor now. It always tracks well on highways, interstates, etc. I almost wonder how much of the problem is actually google maps/ nav, as it seems to go its own way in these programs and not others, so it's been said anyway.
[Captivate Android Development] TXRangerXDA:
So, I don't know if this will help or not... but I have noticed that My Tracks does a halfway decent job of tracking my drives. Not great, all over the road, and sometimes off of it, especially on a turn, it likes to think I kept driving straight, off the road, but it picks up again.

However, if I am moving, Maps won't get a lock on my location at all. Not even a little bit. But if I have My Tracks recording, and open Maps, it will figure out where I am immediately, then not be able to track the location any more. I also notice that the gps icon starts flashing at this time, trying to acquire a lock.

When I looked at my track for that drive, every place I opened Maps, the track had a blank spot. When I closed Maps, Tracks picked up my location again. I tried the same with the Navigation app, with the same result.

So it seems that while GPS Status and My Tracks can get a decent lock on where I am while moving, if Maps or Nav are opened, all bets are off. Location is lost and not gained again till those are closed.

Not sure if this might help, but it is what I noticed today, so I thought I'd share.
[Captivate Android Development] derekedw:
So I opened up a support ticket with AT&T. They gave me a bit of a hard time about this (saying they didn't support Google Maps Navi). I had to sign up for the 30 day AT&T navi and still had problems (obviously). They escalated and came back with Samsung saying this is a software issue and is not warrantable. I argued that my friends works just fine on the same firmware release. They couldn't say much and sent me a replacement anyway.

I tested it (stock JH7 2.1) and it only varied off my navi course once. I got my first lock in about 10-15s and get hot starts in 3-5s. It's not perfect, but I'm thinking that when I upgrade to an i9000 ROM it will get that much better. We'll see this evening :)

Samsung has a major problem on their hands. They have bad hardware and pulling an Apple over it. This could get messy for them if they decide not to warrant this. I am personally disgusted. This shouldn't be an issue the way it is.

If the issue comes back with this phone, I will be in contact with Samsung and also gathering as much information and data to submit to major news sites to try and put some pressure on them. I would suggest others do the same that are still having problems :)

Does anyone know if the i9000 and other SGS variants are having this issue?
[Captivate Android Development] opcow:
I'm pretty sure all but the Rogers Captivate do, and the Rogers does as well if you put AT&T Captivate firmware on it.
[Captivate Android Development] cchant:
Here is a link to my Tracks. I actually started the GPS a few blocks back at Mt Vista BLVD but it took it a few minutes to lock, then I lost lock a little ways down the road when I picked the phone off the dash to make sure it was working correctly. After that it seemed to followe me pretty good, without losing signal or moving off the road. This was about a 20 minute drive, using Jupiter v006 on Cognition beta 9.1.1

http://maps.google.com/maps/ms?msa=0&msid=212384135300338945486.000493c0abbe66ec95e3f
[Captivate Android Development] tytdfn:
Did it help the gps or was it always like this?

Yay no more fc
[Captivate Android Development] cchant:
It seemed to help. I did a google my tracks on another route before I made any tweaks and drove around the neighborhood near my house and sometimes Tracks would show me going off road a ways
[Captivate Android Development] derekedw:
I also have to come back and say that while I could never get GPS to lock or work very well at all with my first Captivate, before I sent it back, I updated the LBSTESTMODE settings from MS Based to Standalone and turned GPS Plus OFF, and I was getting cold starts within 20s and hot starts within 10s and I did a side by side comparison with my new phone and I was amazed at how close it was to the new phone.

The new phone came stock with Standalone as the setting, but GPS Plus turned ON (might actually help).

I probably would have never called AT&T if I had found the standalone setting first. I think it's the best mode to use. I didn't take any tracks, but I had Maps Navi running and it would take the turns (most of them).

The antenna on the Captivate is a definite issue. It's very sensitive to sky LOS where I could have my DROID and G1 anywhere in my car and keep a solid lock always, but I did keep the Cappy on my passenger seat and it stayed fully locked nearly all the time, but if I pick it up and hold it towards the top of the phone, the GPS accuracy starts to diminish.

I hope this helps some of you. I stole those settings from this thread (or another)..can't remember.
[Captivate Android Development] tazman171:
Standalone mode is the difference, it has been noted, in other threads, that using any other mode begs for problems. Standalone mode also cuts out alot of the location cursor being 2 blocks away, turning on to different streets, etc. It still happens, but overall the GPS is much more accurate.
[Captivate Android Development] J-T:
Its just my opinion but I believe this is almost 100% an antenna issue with the Captivate. Something is really wrong when you can just hold the phone at the top and lose a lock. I believe you can change certain settings and maybe improve things a bit but I dont believe it will ever truly be fixed with software. Alot of the difference in how phones work is due to a large part of how people hold the phone, or have a case on the phone or even what type of car you drive. Even the area where u live can be a major issue. Just my opinion which really doesnt count for much. Just using a little common sense here.

____________________

Samsung Captivate:

Tayutama's JPM 1.0.3 I9000 Froyo

Xcaliburinhand Re-Oriented JPM-I9000 Kernel v2.1.1 WIth Voodoo & Color Fix
[Captivate Android Development] quasio:
out of curiosity, has anyone tried flashing the rogers rom onto a US ATT captivate, and check that its the software rather than the hardware?

Here's the link from the rogers thread

http://www.megaupload.com/?d=R4XRLA5X

wouldn't have a clue meself how to flash it however
[Captivate Android Development] newter55:
Many have flashed alternates with varrying degrees of improvement

Sent telepathically using vulcan mind meld app.
[Captivate Android Development] opcow:
I did and I posted my results here. That file contains a nandroid backup and I don't know a lot about how they work (i.e. how completely they mirror the phone's firmware), but the 2 occasions I've used one to restore my phone have both failed; both times I was restoring a different version of Android than what was running on the phone (2.1 vs. 2.2), however.

I also tried flashing just the Rogers modem.bin. I don't know if code in modem.bin drives the GPS receiver, but I did get better GPS performance when I tried it. Could have just been another example of the randomness of SGS GPS.
[Captivate Android Development] tytdfn:
Cl i was considering pm-ing you about this matter but i realized that it would make it easier for people to share their better setups.

I found some amazing gps performance with the deviant Rom but i wanna flash other roms now. Could tout tell me which files i have to copy over?

Yay no more fc
[Captivate Android Development] tbong777:
Don;t know if the ROM has anything to do with it but I put mounted the Cappy on my bike yesterday and went for a 120 mile ride into North Carolina with an address plugged into Google Maps.

It took about 5 minutes to get a lock (while I waited I rode using the ROUTE drawn on the map) When it finally locked the voice directions were extremely accurate. I had my ETY4 buds in and was listening to the music player and the GPS instructions interuped after i made a turn and instructed when the next turn would be. I reset my odometer to check the accuracy and it was right on spot. in fact when I got within 500 feet of the upcoming turn the GPS voice would break through the music and advise of the up coming turn and AT the turn...Never missed a turn was ALWAYS on time. the thing was locked as good as my Car Nav.

I did not have to watch the map (and could not see it anyway as the screen saver was on most of the way.) I also did not see if the track as jumping around as it does when standing still..All I know was EVERY turn was perfectly voiced and the mileage to the next turn was very accurate, that's all I can expect. I won't need a stand alone GPS on the bike. It works as well as the N97 did with Garmin XT.

Now the phone was outdoors and had a direct line of sight to the SATS so that helped.

Locking took some time.......but when it locked it worked as good as my car NAVs, I was pleasantly surprised...especially after having waited a couple miles initially for a lock.

Yeah I'm happy with the Galaxy S.....very happy. I am not sure if its the ROMS or just that people expect a faster lock (which would be nice). but i would not send this phone back for "repairs" for GPS issues.
[Captivate Android Development] ewingr:
Interesting. Have you done anything other than just install lthe ROM? Use Jupiter6? Other changes?

I was doing pretty will with Cognition 2.16, and Beta 8.1. But I put the 9.1.3 beta on last night. Went for a 100 mile round trip drive tonight, and had blue circle for 95% of the drive, and in town was put on wrong roads, etc. Pretty worthless.
[Captivate Android Development] Zukoso:
Hi. I'm from South America. I brought with me a Captivate from the U.S.

Of course my phone has GPS issues, so I was looking at Jupiter Tweaks. Do you know which other parameters different than the NTP_SERVER should I change because of my location? I know there are ntp servers for south america, and other specific for my country, but that's the only change i saw I could make when looking inside the files from Jupiter tweaks...can anyone help me?
[Captivate Android Development] tytdfn:
Your golden. That's the only thing needed to change.
[Captivate Android Development] greenstuffs:
Yeah all i can say is that the GPS is great when driving highway situations, but the thing goes FUBAR when you make small turns in the neighborhood.
[Captivate Android Development] mikegy2002:
Standalone helped but side streets still had problems. I wondered about Google Maps with this phone so tried Co-pilot extracted from a buddys phone (not to pirate, I wanted to see if it would work any better otherwise no point in keeping and purchasing) and found Co-pilot to be very accurate. Co-pilot even showed me as I moved thru various parking lots and tracked me accuratly under overpasses, something Google Maps never did. I subsequently purchased Co-pilot last week.
[Captivate Android Development] tazman171:
I posted earlier about the possibility that gmaps was a big culprit in this issue as well as needing to be in standalone mode. I downloaded OsmAnd maps (free) to test if actually having the maps on the phone made a difference and Oh yes it does. I always figured gmaps implementation on this phone waqs horrid and this just drives the nail in further. Using OsmAnd my phone knew where it was at all of the time. Amazing, lol. As soon as I select GoogleMaps as a map tiles source in OsmAnd options everything gets screwy again. Using the option for Microsoftmaps instead was fine but the beuaty is that like copilot, the maps are on your phone not constanly streaming like in gmaps. Its based off of OSM open source maps and they are outdated in some cases, they show a bridge in front of my parents house that was torn down in 1980, but you can get realtime info using either gmaps or microsoft maps.
[Captivate Android Development] tazman171:
I've heard good and bad about copilot but you know how that goes. What's your take on it no that you bought it? I mean, for the price it's hard to resist.
[Captivate Android Development] ewingr:
I had applied Jupiter6 to Design Gear's 8.1 Froyo build, and it worked pretty good. I am now on 9.1.3, and it is crap.

Is there possibly something else I should have changed? I don't recollect anything else for sure, and don't see it in the OP page here.

Regarding CoPilot, I purchased it, and returned it for refund in the 24 hour period. I did not like it at all, comparing to TomTom from on WinMo for past 3 years, and current Google Functionality too.

Here are my comments.
[Captivate Android Development] creepyncrawly:
I've read a good number of posts in other threads that state GPS sucks in cog 9.1.3 beta version. I think it a reasonable conclusion that something changed from earlier builds.
[Captivate Android Development] ewingr:
Yeah. Its interesting how varying people's experiences are.

I'm hoping for 9.1.4, or better, the real release. If I near a time I really need the GPS, I may drop back to 8.1
[Captivate Android Development] Disgustipated:
I'm hoping all of the GPS woes will be resolved with the official Samsung Froyo ROM + kernel. I'm sure they're aware of the issue and possibly already have a fix implemented. I guess we'll find out in the next few weeks.
[Captivate Android Development] tazman171:
Oh they know about it and no fix so far, in what, over 5 months of the SGS phones being out? IMO the only real work being done on the issue is in places like this, not a Samsung They make sure their leaks get passed around so the end user devs can try to fix their rushed out snafus, just IMHO, and I'm being rather sarcastic :rolleyes: when I say that. It just comes across that way to me because of their complete failure at resolving this and their drown in their own snot answers regarding the issue.. :cool:
[Captivate Android Development] mikegy2002:
Co-pilot

Has been truly excellent around the city. So far so up to date on maps, even driveways to newer businesses have shown up properly. All the functionality in the world built into Google Maps is useless to me if Google Maps won't actually function.
[Captivate Android Development] ewingr:
Point well taken. Although I understand they function fine on other phones.
[Captivate Android Development] opcow:
Rogers Firmware GPS

I just installed Rogers firmware on my AT&T Captivate. I want to say GPS is quite a bit better. The only thing holding me back is the fact that these phones seem to have a sadistic habit of getting one's hopes up and then crushing them. But in my very brief test, here's what I've found with my phone (you milage may vary).

First I opened LbsTestMode and did a get position test with all settings stock. It locked in less than a minute. Not blazing fast, but faster than my phone did with AT&T firmware.

Next I changed the accuracy setting to 250. I've been doing this with my AT&T firmware as it locks much faster and accuracy doesn't seem any different; it quicky settles down to 5-10 meter accuracy (there may be tracking issuse when moving and under marginal signal conditions, though I haven't noticed a problem drivng around with the phone on the dash) . So, with the accuracy set to 250 (I cleared GPS data) the phone locked in seconds. Probably 5 seconds or less. In less than 30 seconds I had 5 meter accuracy and the signal seemed to hold quite a bit better.

Another thing. It seems like I got faster locks with LbsTestMode than with normal GPS apps. It may be the fact that I can see the satellite signals being picked up in LbsTestMode before I get a lock vs. nothing in, say, My Tracks until a full lock is achieved making it seem longer, but I got in the habit of getting my position with LbsTestMode before running My Tracks or Nav software. Whatever the case, I see no reason to go into LbsTestMode with this firmware.

One other factor: conditions here are overcast. I don't know how much that matters, but almost all of my AT&T gps firmware tests were under cloudless or nearly cloudless skies.

This isn't scientific and I won't be shocked if GPS starts sucking again, but for now I encouraged that a firmware update might help us.
[Captivate Android Development] FarOutGalaxyS:
Google Maps 4.5 and above introduces drifting

I agree that GMaps can affect performance. I noticed that after flashing a new ROM (Sheps or Cog), that the GPS would work great, then after a few days or a week, performance would degrade, most specifically, the drifting issue where the GPS position keeps going after you make a stop, or keeps going straight after you turn and then slowly drifts back to the correct position. This drove me nuts, especially while driving in subdivisions with lots of turns - useless. Yesterday I figured out that the drifting issue was minimal with GMaps 4.4, got worse with version 4.5, and is really bad with 4.6. On the same drive I could switch GMaps versions and consistently got the drifting problem with 4.5 and above. The drifting issue is almost non-existent with 4.4. So for now, I'm sticking with 4.4 and although I still get blue circles and the GPS loses me at times, it quickly finds me and snaps me back on the road. For me the GPS with GMaps 4.4 is at least usable. Looks like what was happening with flashing roms was that the rom would come with an older version of GMaps (4.4) and GPS performance was good, and then over time when I got the map updates, the GPS performance degraded with the newer versions. I just hadn't put 2 and 2 together. Of course, this is a Galaxy S problem, not a Google Maps problem, it is just that the algorithm that GMaps is currently using to determine position compounds the issues with our crappy GPS. Anyone else experiencing this?

Older versions of GMaps found here: freewarelovers.com/android/app/google-maps
[Captivate Android Development] tazman171:
Just post it with the "tt" missing from the http.

@ Opcow: One cool thing in OSMand, in the menu you can click on GPS Status and it will bring the program up so you can see if you getting a good signal or not. The downside is the maps are outdated. I have noticed that there is an option to updated map tiles from google and microsoft maps. It actually downloads the data to the sdcard.
[Captivate Android Development] FarOutGalaxyS:
Thanks for the tip Tazman. I had to actually remove the world wide web component as well.

I must say that since flashing to Cognition V2.3B2 and reverting to Google Maps4.4, my GPS accuracy has been the best it ever has been. It is still mediocore (blue circles and sometimes putting me on a nearby road when error is large), but not a complete bust like it was before (almost constant blue circles and putting me on nearby roads very often). As some have already posted on this thread, I don't think changing any LbsTestMode settings make any difference, they seem to only affect the LbsTestMode app only so I have not changed any of the default settings there. I do use LbsTestMode to get my initial lock before firing up Gmaps.

Will post an update if performance degrades again (while still on GMaps 4.4).
[Captivate Android Development] FarOutGalaxyS:
@ewingr, Maybe the change is the version of Google Maps. Can you try version 4.4? See post 483
[Captivate Android Development] tazman171:
I'm going to have to try the older google maps 4.4.

Having said that, I compared the jupiter.xml files from b7 to b9.1.3 and b7 has 2 more lines of code versus b9.1.3. GPS was better for me in b7 without a doubt. I'm going to have to look again to see what the difference is, found it right before I fell asleep. :rolleyes:
[Captivate Android Development] ewingr:
I'll give it a try.

Question: Is Google Maps what the Navigator uses? I presume so but wanted to ask, because I've seen some say "I do better using maps than navigator", which implies to me there is a difference.

I am on 4.6 now, and in fact on 2.3b2, I am finding very good response, based solely on a couple 26 mile trips. I have started looking at the GPS Test to watch accuracy, and on this load my accuracy is on 16.4' a lot, with some 32.8' accuracy flashing up. On 9.3.1, I was seeing a lot of 82' accuracy. It was horrible.

Also on this version, other than the initial long period to get the GPS to take, I've been getting 8-11 SATs in use, and many SN$s in the mid 30's, and some occasonal 1-2 long SNRs of 40-42.

[EDIT]

Can't get the 4.4 right now. That link is not allowed at my work, where I'm at now. Filtered out on the proxy as "Shareware'.:mad:

One question: I take it if I install that, it will just replace my current 4.6 maps, no?

[EDIT2]

Doh!... I'll just download it with my phone.
[Captivate Android Development] FarOutGalaxyS:
Good questions, I think that there is a difference between Maps and Navigator because Navigator is labeled as "beta" while Maps is not. They do come as a package though under the GoogleMaps.apk. I don't know if the differences between the versions that affect the drifting are changes to the Maps side or the Navigator side.

You can't have multiple versions of GMaps loaded so you will need to uninstall 4.6 and then load 4.4. To get back to 4.6 you can either use Titanium Backup (make a backup first) or update via the market.

Glad to hear that you are also having better performance with Cog 2.3B2. Since flashing to 2.3B2 I have only used GMaps 4.4 so I don't know how big a difference you will see going from Gmaps 4.6 to 4.4. If the GPS accuracy perfromance is indeed better with Cog 2.3B3, then the version of GMaps will matter less.

Good luck
[Captivate Android Development] marcelobelinello:
gostaria de saber onde conseguir? i dont speek english very well, but i wish have , where i take download?
[Captivate Android Development] FarOutGalaxyS:
Que estas buscando especificamente?

What are you looking for, specifically.
[Captivate Android Development] tazman171:
You said "I would like to know where to obtain?" right?

você disse para a direita?

Que você estava tentando começ? As limas de jupiter? Google Maps?

"What were you trying to get? The jupiter files? Google maps?"