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Gps fix 101

OP boodies

2nd August 2010, 12:00 AM   |  #161  
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Quote:
Originally Posted by heygrl

It makes no change whatsoever. It's silicone people, not metal. If your left hand is covering the GPS/BT/WiFi antenna reception will be affected..

It is all about cause and effect. You do a test and look at the results. There is no point in over thinking the hows and whys. I tested it many many times and recorded my findings. I also did the test on a flat surface with no hand involved. As LaVar Burton would say "Don't take my word for it."
2nd August 2010, 04:24 AM   |  #162  
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Talked to T-Mobile/software update
Talked to T-Mobile Technical Support this evening and they confirmed the following:

The GPS is a known issue.
There will be a software update for the Samsung Vibrant.
- They cannot confirm the update will address the GPS issue
- They cannot confirm when the update will be available.
2nd August 2010, 04:53 AM   |  #163  
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That sounds more like an Apple response.
2nd August 2010, 09:58 AM   |  #164  
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Quote:
Originally Posted by mikebarton

Hi. So I tried the Google server (and port) and also MS Based but nothing would work to get my GPS to lock on this new Sammy Captivate. I tried one other thing I came across somewhere, with a twist. Set to MS Assisted and instead of using a Custom Configuration for supl.google.com or the default setting, I changed it to Auto configuration, which gave a very long server address. I rebooted, fired up GPS test and the phone locked lickety split and had 6+ satellites. Google Navigation locked from inside my house faster than it ever did on my Droid before this new phone. The Droid would lock in OK outside or when driving but no so much in the house. This is with SkyNet on. Anyway, it works for this Captivate user. Try it, frustrated ones.

All of the variations of the fixes simply change the SUPL server, which is used for AGPS (assisted GPS). For those who are not aware, it takes advantage of your phone's data connection to make a faster lock. The problem with the Galaxy S phones is more severe (supposedly with the Broadcom dedicated unit according to another XDA poster).

Changing the server may get you a faster assisted lock by a few milliseconds or so, but the point is this is still an assisted lock. The Galaxy S is still the final step of the process. In other words, this is a band-aid. I'm wary of any posts that claim that any AGPS related setting results in a complete "fix."
Last edited by jamesyl; 2nd August 2010 at 10:02 AM.
2nd August 2010, 12:53 PM   |  #165  
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None of the current fixes have made much of a long term difference for me. Rebooting the phone seems to have the same effect as these fixes. As soon as I reboot the GPS works fine, for a while. But, even then, I usually only lock on 1 or 2 satellites.

I am at the crossroads with this phone. Today is my last day to be able to return the phone and I am kind of struggling with the decision. Great phone overall, but unlike some, I use the GPS function quite often (as do many apps). Decisions, decisions....
2nd August 2010, 01:21 PM   |  #166  
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Has anyone studied any of the log files on their device for clues? There are several (I might add they grow quickly).

Specifically: /data/CGPS_LOG.txt, /data/HALGPS_config.cfg, /data/NAV_DEBUG.txt, /data/NMEA_DEBUG.txt, and /data/gps/secgps.conf?
Last edited by cabfeegig; 2nd August 2010 at 01:28 PM.
2nd August 2010, 03:39 PM   |  #167  
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It is starting to sound more like an issue with hardware that has some kind of problems. Software can only do so much-perhaps the new chipset needs some kind of alts to make it work properly. If I am using the GPS and in an area I'm unfamiliar with, I needs full time GPS, not part time GPS. I really liked the phone when I looked at it, but I am a little leery of a company that apparently didn't test the phone out too well.
5th August 2010, 12:15 PM   |  #168  
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accuracy still way off
I use my tracks, and before the fix it registered a 2.6 mile run at 3.7 miles. After the fix exactly the same thing. The weird thing for me is that it will be dead on for a while, and then wildly veer off.

My 30 days are almost up, and I'm not gonna trust that Samsung will fix the issue. Mapmyrun was my most used app on the iphone, and MyTracks would be on the Galaxy. So there's no point in my keeping this phone.
5th August 2010, 01:08 PM   |  #169  
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Quote:
Originally Posted by cabfeegig

Has anyone studied any of the log files on their device for clues? There are several (I might add they grow quickly).

Specifically: /data/CGPS_LOG.txt, /data/HALGPS_config.cfg, /data/NAV_DEBUG.txt, /data/NMEA_DEBUG.txt, and /data/gps/secgps.conf?

Some of the best black-box analytical work on this issue is being done over in the forum for the international version of the Galaxy S, the I9000. See the investigation by UK user sjdean in this thread, beginning at about post #289 about the logs.

The short answer is that the logs have been looked at but no one has said Eureka yet.

If you read between the lines of all those hundreds of comments, there is some reasonably optimistic news about new firmware and drivers in development by both Samsung and Broadcom, the maker of the BMC4751 GPS chip. But there still is no ironclad assurance that there are no hardware problems as part of the root cause.
5th August 2010, 01:38 PM   |  #170  
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http://twitter.com/Samsungservice/status/19861814931

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