GPS fix (worked for me) let me know your results.

[Guest aeo087]

I found this simple GPS fix at android forums, I tried the one at XDA-developers that was published for the Vibrant and had horrible results. I'm running JG5 with Mimocan's SD lag fix.

Here's how to do it, let me know your results, mine improved by a lot, i'm getting faster and more precise locks:

1. go to the GPS menu using the following code: *#*#1472365#*#*

2. Go to "Application Settings" and set "skyhook" to on.

3. Go to "SUPL/CP settings" and change from custom to AUTO Config

I noticed a vast improvement and my phone seems to hold it's position much better.

PLEASE let me know your results when you try this...

[Guest Kilack]

I found this simple GPS fix at android forums, I tried the one at XDA-developers that was published for the Vibrant and had horrible results. I'm running JG5 with Mimocan's SD lag fix.

Here's how to do it, let me know your results, mine improved by a lot, i'm getting faster and more precise locks:

1. go to the GPS menu using the following code: *#*#1472365#*#*

2. Go to "Application Settings" and set "skyhook" to on.

3. Go to "SUPL/CP settings" and change from custom to AUTO Config

I noticed a vast improvement and my phone seems to hold it's position much better.

PLEASE let me know your results when you try this...

I havent tried this but this seems to be something different from GPS.

From what I have read the GPS sucks on the galaxy.

Using skyhook makes the "gps" take advantage of wifi/cell towers etc when the gps sucks...

So yes it might lock in a location faster in an urban area but it still isn't fixing the problem that the real GPS without wifi fixes or cell tower fixes still is flakey...

[Guest seraphine]

Even without using A-GPS, I get accuracy down to 50m (at worst) with my stock Galaxy.

With the fix it'll get better. How inaccurate is yours?

I havent tried this but this seems to be something different from GPS.

From what I have read the GPS sucks on the galaxy.

Using skyhook makes the "gps" take advantage of wifi/cell towers etc when the gps sucks...

So yes it might lock in a location faster in an urban area but it still isn't fixing the problem that the real GPS without wifi fixes or cell tower fixes still is flakey...

[Guest DistortedLoop]

I havent tried this but this seems to be something different from GPS.

From what I have read the GPS sucks on the galaxy.

Using skyhook makes the "gps" take advantage of wifi/cell towers etc when the gps sucks...

So yes it might lock in a location faster in an urban area but it still isn't fixing the problem that the real GPS without wifi fixes or cell tower fixes still is flakey...

GPS on my SGS is acceptable. The only tweak I did was to turn off "hot start", and turn on Network Provider. I get 6-8 satellites locked and 32 feet accuracy in under 30 seconds, but I am in an urban area and I'm sure the Network Provider a-GPS is kicking in here. I recently drove from Los Angeles to Las Vegas and ran my iPhone 4, my car's built-in GPS and the Samsung Galaxy S all side by side to check for accuracy. They all seemed to work the same. The road from here to Vegas isn't devoid of cell towers, but they're pretty sparse.

I'm not planning on using the SGS for hiking in remote mountain locations, so I don't care too much that lack of cell towers MIGHT be an issue with the hardware's location lock, since I'm rarely in such a situation, and I have a real GPS for hiking that lasts for days on a pair of AA batteries, unlike the relatively short life a smartphone used like a GPS would give you.

That said, I can appreciate the frustration some feel if their device doesn't operate as expected.

[Guest miker71]

I tried Navigon on default GPS settings at the weekend and didn't get a lock once out on the road driving :-(

I've put this new config in the phone, and will have to try it out.

Is it known if these settings are persistent between reboots of the phone?

Edited July 27, 2010 by miker71

[Guest DistortedLoop]

I tried Navigon on default GPS settings at the weekend and didn't get a lock once out on the road driving :-(

I've put this new config in the phone, and will have to try it out.

Is it known if these settings are persistent between reboots of the phone?

Any settings I have put in through that menu are persistent. Easy enough for you to check, make the settings, reboot, check the settings. Report back and let us know.

:(

[Guest Andrew Luecke]

deleted

Edited July 27, 2010 by Andrew Luecke

[Guest bambibio]

JM1+ Fixes most GPS problems. Used to take 5-10secs to get 5 sats in view and 5 locks, now it takes a second or two to get 10 in view with 8 locked.

[Guest Andrew Luecke]

I found this simple GPS fix at android forums, I tried the one at XDA-developers that was published for the Vibrant and had horrible results. I'm running JG5 with Mimocan's SD lag fix.

Here's how to do it, let me know your results, mine improved by a lot, i'm getting faster and more precise locks:

1. go to the GPS menu using the following code: *#*#1472365#*#*

2. Go to "Application Settings" and set "skyhook" to on.

3. Go to "SUPL/CP settings" and change from custom to AUTO Config

I noticed a vast improvement and my phone seems to hold it's position much better.

PLEASE let me know your results when you try this...

Something I've always wondered, is how do we know that application actually changes system-wide settings, and isn't only a test application for GPS? Has anyone actually confirmed that it changes the settings of all applications?

[Guest DistortedLoop]

Something I've always wondered, is how do we know that application actually changes system-wide settings, and isn't only a test application for GPS? Has anyone actually confirmed that it changes the settings of all applications?

That's probably a valid question, but I assume most access to the hardware is through an api call or whatever Android uses; that is to say that apps don't talk directly to the GPS, they talk to Android which talks to the driver for the device. The phone's settings set the parameters that the driver uses, so a master setting like that *should* affect all apps.

Best way to test that theory for yourself would be to change the settings to something that obviously will impact the function of the GPS (like cold start vs hot, skyhook on vs off, network provider on vs off, etc), and then fire up a couple of GPS apps and see how they behave with the different settings. You'd probably want to build in some time for the GPS to actually lose any lock status it has, or at the least cycle the settings to allow it on and off between tests.

Hopefully someone with more knowledge will jump in and correct me if I am wrong.

[Guest dan 6a]

Is there a guide that explains what all the settings are exactly or are people just guessing?

GPS plus explained?

Dynamic accuracy explained?

setting accuracy to 0

etc..

Cant find any samsung guide to explain them etc..

[Guest miker71]

OK, well these settings may have helped Navigon obtain and keep a lock, since it worked fine for me today.

Then I tested Everytrail on a walk - not so good (outliers). Then I checked Everytrail settings and they were defaulted at "656 Feet (Recommended)" for accuracy. So I changed that to 150 feet and need to re-test.

However, I've also read elsewhere that toggling the GPS can "fix" it, and I should point out I'd turned it off a couple of days ago so my results could actually be the result of the toggle.

It still took maybe 30s for Navigon to get a lock and begin navigation, but that's on a par with my ancient TomTom, so I can tolerate the initialisation.

[Guest PhonePersona]

I tried all the GPS fixes (and messed around with a quite a bit of my own) and none of them seemed to work really well.

I decided to go back to the default settings i.e.

Standalone

www.spirent-lcs.com

7275

....Yada yada.

My GPS is locking to 3-4 really quickly now.

Indoors!

Weird :)

[Guest miker71]

I found this simple GPS fix at android forums, I tried the one at XDA-developers that was published for the Vibrant and had horrible results. I'm running JG5 with Mimocan's SD lag fix.

Here's how to do it, let me know your results, mine improved by a lot, i'm getting faster and more precise locks:

1. go to the GPS menu using the following code: *#*#1472365#*#*

2. Go to "Application Settings" and set "skyhook" to on.

3. Go to "SUPL/CP settings" and change from custom to AUTO Config

I noticed a vast improvement and my phone seems to hold it's position much better.

PLEASE let me know your results when you try this...

I think it's mentioned elsewhere but will also add it here - if you are running the JP3 Froyo pre-release build then the *#*#1472365#*#* combo does not work - I can confirm this, being I updated to JP3. The GPS problems are not fixed in JP3, if anything I think it's got worse in this build. Here's an example of a short cycle using Everytrail:

http://www.everytrail.com/view_trip.php?trip_id=740519

I think the only way to tweak GPS on JP3 is to edit certain files (so root is needed)

Oh well ... only need to sit tight until the end of September :-)

[Guest andre_bxt]

In regards to Froyo GPS - does anyone know what the service mode GPS panel does?

*#*#197328640#*#* -> [6] Common -> [9] GPS -> [2] Change Status to enable and then reboot. I thought maybe that would enable that shortcut or give access to a GPS panel but I don't seem to be able to notice any difference after enabling it.

[Guest morfic]

Tried all fixes i came across, still was off that navigation told me to merge left onto the highway i had been on for miles already, told me signal lost (ok wife and i thought it said "you are lost") and never saw maps show me a better result for my location than "Accurate to 70m". got no indoor locks. (tried the fixes in hotel room and got same results on drive back "after the fix")

Got another Vibrant and now i get indoor locks "Accurate to 10m" but i have yet to road test it. Compass is of course laggy as ever.