Firefly GPS performance - Captivate General

I recently installed the Firefly ROM onto my Cappy. Prior to this I was on esclair 2.1 for the longest time. The GPS on my phone was not great but it worked. By that I meant it took 15-30 seconds to get a lock. Sometime it would put me on the neighboring street but overall it served the purpose. However, after flashing Firefly, the GPS just doesn't work at all. It would take over 1 minute to get a lock and then kept losing it. On a 10 minute drive today, it lost GPS lock 3 times with full view of the sky. When I checked the LbsTestMode on the phone I noticed the SkyHook option was not there which was weird.
Anyone have any suggestion? Which custom ROM has the best GPS performance?

I would try reading into the many theads (some stickied at top) on how to improve/ what affects the GPS.

I have been reading threads about GPS settings. One of the thing most of these thread talked about is SkyHook, which is missing from the LbsTestMode screen on the Firefly ROM. Anyone know why?

hmm weird its not there... but my gps is locking onto me within 20 meters in 15 seconds.. fresh ff update today.,.

Google took out the option to skyhook in 2.2
they had a falling out with the company.

Tested it again on my way to work this morning and it was totally unusable. For the entire 10 minutes drive, it was either trying to lock or showing me at a previous location.
I guess I'll have to go back to 2.1, sigh.........

There's a ROM-specific sticky in Q&A for this kind of thing. Please use it.

Related

Adding Juice to your GPS on your Raphael

First of all, i apologise for the "catchy" title.
For this past week, i have been flashing my TP, with various firmwares / radios etc. However, i decided to go with the new stock ROM released by HTC,
[-HTC Touch Pro-MRII-RUU_Raphael_hTC_Asia_WWE_5.07.707.2_Radio_Signed_Raphael_52.58.25.30_1.11.25.01_Ship]
But i am sure this will work even for users of different ROMS.
Anyway, with this and alot of other ROMS, i faced this issue. Poor GPS reception. Mind you, AGPS is not included in the Asian version of the ROM, since we don't use it , and most probably AGPS uses data connection, which is quite expensive here. Anyway, even after tweaking the registry (followed one of the great threads here), the GPS was horrible. After updating the quickgps, i took my phone, and placed it beside my window. About 10 ~ 15 minutes later, it had fixed it self to a few sattelites. 10 ~ 15 minutes is alittle bit too long for me.
When i took it outside (after re-starting the phone) it still took about 10 minutes to get a signal. Later on, it becomes even harder to fix to sattelites after a few reboots. I don't know what the problem was.
I read around the forums and there was a thread about the RADIO, 1.12.25.19. People were saying how good it was for the battery life of the phone and especially GPS. Some even claimed to have gotten a GPS fix within 10 seconds, and some could even get gps singnals indoors. I flashed my RADIO to ver 1.12.25.19 and there still wasn't much changes on the GPS part.
Today morning, i decided to hard reset my phone and then play around a little and to my amazement i found a gem. So here is what i did.
After hard resetting my phone, i didn't install apps. I didn't apply any registry fix for the gps. Everything was in it's original state. I installed Msoft .net CF 3.5 . This is because it is required to run an app, GPSTOOLPRO.exe , so it could hunt for this sattelites. An alternative to GPSTEST, but i like this better.
So here is what i Did. **my quickgps isn't updated**
I went to
Start > Settings > System [TAB] > External GPS
GPS program port, I set it to (NONE). Then i pressed ok.
Then i clicked on External GPS again.
This time my GPS Program Port value is (NONE) and i went to the Hardware Tab.
GPS Hardware Port, you can put in any value you like. Mine was COM4 and the BAUD RATE is 115200.
Somehow once you press Ok, and you come back to the same menu, You will see that your GPS hardware Port is set to NONE, and your BAUD RATE is it's default.
I am not sure if i am the only one facing this issue , but it's no problem
After setting up the GPS hardware port and the BAUD RATE as above, Do not close the menu. Also Make sure , [Manage GPS automatically] from the Access Tab is enabled.
From here, Do not press ok. Let the menu remain and run in the background. Then i went on the start bar, went to file explorer and ran my app, GPSTOOLPRO.exe to search for sattelites and get a fix.
The Result= I could get satelite signal about 12 of them almost immediately & fix in less than a minute. I could also get a fix indoors where previously i couldn't. The GPS certainly has improved.
Do take note, I tried using gpstest but it was unable to detect the port. So i suggest searching for "GPSTOOLPRO" around XDA and use that instead.
Hope this helps
Thanks for sharing It will be very useful
how are you getting signal inside? must be alot of windows. lol
What do you mean signal inside? You mean indoors?
And yes, about 2 + 1 windows would be open. 2 (external GPS + GPSTOOLPRO) + 1 (your choice of gps navigator)
arvin2212 said:
First of all, i apologise for the "catchy" title.
For this past week, i have been flashing my TP, with various firmwares / radios etc. However, i decided to go with the new stock ROM released by HTC,
[-HTC Touch Pro-MRII-RUU_Raphael_hTC_Asia_WWE_5.07.707.2_Radio_Signed_Raphael_52.58.25.30_1.11.25.01_Ship]
But i am sure this will work even for users of different ROMS.
Anyway, with this and alot of other ROMS, i faced this issue. Poor GPS reception. Mind you, AGPS is not included in the Asian version of the ROM, since we don't use it , and most probably AGPS uses data connection, which is quite expensive here. Anyway, even after tweaking the registry (followed one of the great threads here), the GPS was horrible. After updating the quickgps, i took my phone, and placed it beside my window. About 10 ~ 15 minutes later, it had fixed it self to a few sattelites. 10 ~ 15 minutes is alittle bit too long for me.
When i took it outside (after re-starting the phone) it still took about 10 minutes to get a signal. Later on, it becomes even harder to fix to sattelites after a few reboots. I don't know what the problem was.
I read around the forums and there was a thread about the RADIO, 1.12.25.19. People were saying how good it was for the battery life of the phone and especially GPS. Some even claimed to have gotten a GPS fix within 10 seconds, and some could even get gps singnals indoors. I flashed my RADIO to ver 1.12.25.19 and there still wasn't much changes on the GPS part.
Today morning, i decided to hard reset my phone and then play around a little and to my amazement i found a gem. So here is what i did.
After hard resetting my phone, i didn't install apps. I didn't apply any registry
fix for the gps. Everything was in it's original state. I installed Msoft .net CF 3.5 . This is because it is required to run an app, GPSTOOLPRO.exe , so it could hunt for this sattelites. An alternative to GPSTEST, but i like this better.
So here is what i Did. **my quickgps isn't updated**
I went to
Start > Settings > System [TAB] > External GPS
GPS program port, I set it to (NONE). Then i pressed ok.
Then i clicked on External GPS again.
This time my GPS Program Port value is (NONE) and i went to the Hardware Tab.
GPS Hardware Port, you can put in any value you like. Mine was COM4 and the BAUD RATE is 115200.
Somehow once you press Ok, and you come back to the same menu, You will see that your GPS hardware Port is set to NONE, and your BAUD RATE is it's default.
I am not sure if i am the only one facing this issue , but it's no problem
After setting up the GPS hardware port and the BAUD RATE as above, Do not close the menu. Also Make sure , [Manage GPS automatically] from the Access Tab is enabled.
From here, Do not press ok. Let the menu remain and run in the background. Then i went on the start bar, went to file explorer and ran my app, GPSTOOLPRO.exe to search for sattelites and get a fix.
The Result= I could get satelite signal about 12 of them almost immediately & fix in less than a minute. I could also get a fix indoors where previously i couldn't. The GPS certainly has improved.
Do take note, I tried using gpstest but it was unable to detect the port. So i suggest searching for "GPSTOOLPRO" around XDA and use that instead.
Hope this helps
Click to expand...
Click to collapse
I love to try this however can't find GPS Tool pro on this forum ...any link please
gps indoors nice, i guess they finally added that rubidium oscellator.
lolol
sadly for me, this doesn't seem to work. i hard reset yesterday and am running on a bloat-free fuze stock rom and radio. I installed google maps, att navigator (only way i can EVER get a fix after 5 minutes), and CF 3.5. Trying this now standing inside my bay window facing the a river with lots of open sky and i'm not getting anything
i read the thread this morning about teh .19 radio and i can't wait to try it out this weekend!
what radio are you on? mine is: 1.02.25.32 (stock ATT)
Here is a link for the GPSToolPro.
http://forum.xda-developers.com/showthread.php?t=474582
nhshah7 said:
sadly for me, this doesn't seem to work. i hard reset yesterday and am running on a bloat-free fuze stock rom and radio. I installed google maps, att navigator (only way i can EVER get a fix after 5 minutes), and CF 3.5. Trying this now standing inside my bay window facing the a river with lots of open sky and i'm not getting anything
i read the thread this morning about teh .19 radio and i can't wait to try it out this weekend!
what radio are you on? mine is: 1.02.25.32 (stock ATT)
Click to expand...
Click to collapse
I would try the leaked AT&T 1.12.25.19 radio. It supposedly opens up more slots for sats than the previous radios, which should help getting a fix.
Also which stock ROM are you using? The one it was shipped with or the leaked one? I would upgrade to the leaked AT&T one because it enabled aGPS, which works wonders in getting a fix.
EDIT: Use the link below and download the leaked ROM, it also includes the leaked AT&T upgraded radio...
http://forum.xda-developers.com/showthread.php?t=487994
If you don't have a data connection (too expensive) then how can you be using QuickGPS?
If you do have a data connection then I highly recommend upgrading your rom to a 5.08.502.1 derivative along with keeping the raphael radio you just tried then changing your settings to the public AGPS servers described in Da_G's AGPS thread in the Raphael ROM forum.
this probably doesn't help any, but I have a TP that is about a week old, flashed with mighty rom, radio 1.03.15, and I can sit in my living room, two windows completely covered, and I can get 9 satellites to lock in under 5 seconds. This works in google maps, igo8, really any gps program. I do not use quickgps (I think that is what it is called) or anything else. mine has worked great from the day I brought it home. I have only tried a couple of radios and all worked fine with gps. I am wondering if the newer ones are "better" on gps?
Brew
If you're using a Fuze (AT&T variant) this sums up how to get GPS running on your phone: http://www.fuzemobility.com/the-fuze-and-gps/

Optimal GPS setting AFTER update

I would like to start a thread to discuss what is the optimal GPS setting for the Captivate after installing the update. From what I can see, the update didn't change my LbsTestMode setting at all. My GPS is now working pretty well, still can't compare to the HTC Aria I had before but acceptable. I wonder if we can further tweak the GPS setting to make it work better.
the only change i seen was if you check auto config it takes you back to server port 7275 and changes the server to a new one.
yesterday there was a thread started about those who got the update successful, and the guy did a test of his gps with screen shot. A) how do you track your route, B) how do you take a screen shot?
it looked like he was using the maps app but i looked all over it for a way to track my route!? thanks..
chasesavestheday said:
yesterday there was a thread started about those who got the update successful, and the guy did a test of his gps with screen shot. A) how do you track your route, B) how do you take a screen shot?
it looked like he was using the maps app but i looked all over it for a way to track my route!? thanks..
Click to expand...
Click to collapse
Thats my tracks from the market
smokestack76 said:
Thats my tracks from the market
Click to expand...
Click to collapse
can you screenshot with it?
saint168 said:
I would like to start a thread to discuss what is the optimal GPS setting for the Captivate after installing the update. From what I can see, the update didn't change my LbsTestMode setting at all. My GPS is now working pretty well, still can't compare to the HTC Aria I had before but acceptable. I wonder if we can further tweak the GPS setting to make it work better.
Click to expand...
Click to collapse
It seems that most people who had messed with the GPS settings before the update are not getting optimal GPS performance after the update (This is true even if they change the GPS settings to stock original that shipped with the update).
So moral of the story is to change GPS settings to stock before you update....?
JvKintheUSA said:
So moral of the story is to change GPS settings to stock before you update....?
Click to expand...
Click to collapse
I would guess so... unless there are few phones that Samsung shipped with a hardware defect.
Am taking my phone to AT&T today.
Can somebody with successful upgrade and with working GPS to publish their GPS current settings?
joedoe said:
Can somebody with successful upgrade and with working GPS to publish their GPS current settings?
Click to expand...
Click to collapse
So far, only one user: http://forum.xda-developers.com/showpost.php?p=8291779&postcount=419
My GPS doesn't work at all for some reason. I don't know if I have a totally defective phone or the update didn't have anything at all in it that fixed the GPS. I'm ready to just give up on this phone having a working GPS.
galaxyjeff said:
My GPS doesn't work at all for some reason.
Click to expand...
Click to collapse
Did you change your GPS settings prior to the update? If yes, welcome to the "group"
My GPS is definitely working better after the update. It used to take 30 second - 5 minutes to get a fix. So far I have been able to get a GPS fix within 15 seconds.
My settings are:
Tracking
S/W Test
MS Based
Cold Start
GPS Plus On
Dynamic Accuracy On
Accuracy 50
SkyHook On
PC Tool Off
supl.google.com
Port 7276
Secure Socket Off
AGPS Supl
As far as tracking my position with driving, it's not perfect but acceptable. At time the GPS would put me on the local street next to the freeway but not too often. It takes about 30 sec to 1 minute to locate me while indoor so I have no problem doing my FourSquares checkins.
jaimingandhi said:
It seems that most people who had messed with the GPS settings before the update are not getting optimal GPS performance after the update (This is true even if they change the GPS settings to stock original that shipped with the update).
Click to expand...
Click to collapse
Actually, I never touched my GPS settings prior to the update, and I get crappy tracks. I had a Captivate which I changed the settings on, but then I ended up exchanging it for a new one a couple days before the update, and left it exactly as I found it, and GPS is spotty as hell.
First of all, I'd like to thank you for posting this thread, it's exactly what I have been looking for. The other threads keep getting hi-jacked by people who couldn't get the update. Hey you knew when you rooted you wouldn't be able to get OTA updates, get over it and wait till someone figures it out.
Back on topic, my GPS is definitely better. I did change my settings before the update in LbsTestMode to the recommended settings. My gps locked quicker, but it was constantly losing the lock. So i used the shortcut method to go into LbsTestMode and changed back to stock settings. It was like the phone was set to lock at exactly 30 seconds, 30 tests with an average of a little under 30 seconds.
The accuracy was a little worse, 50m compared to 15m. But it was also losing the lock quickly, so I changed the spirent setting to supl.google.com. Now i lock between 10 and 15 seconds and it stays locked. My settings:
s/w test
standalone
hot start
gps plus- on
dynamic acc. - on
accuracy- 50
skyhook- on
use pc tool- off
custom config
7276
secure socket- off
agps- supl
So maybe the answer in the end, sad to say, is to buy an aftermarket gps device with bluetooth integration and bypass the built-in gps altogether.
I've been messing with the gps all day and cannot get a lock at all. Not even for a second. Messed with my gps settings before the update.
Sent from my SAMSUNG-SGH-I897 using XDA App
Two months in and I've seen hundreds of threads about the GPS on the captivate, The GPS its broken, no good, damage. Lets get over it and move on. We [email protected]$k BTW new update its a lil better but still sucks. My nexus one located me with no problem spot on. Change your phone why u can. I wish I was under the 30 day return policy.
Sent from my SAMSUNG-SGH-I897 using XDA App
The only settings I changed were the server before the update. I checked the settings after the update and I had Server as spl.google.com and Standalone in Operation Mode. I switched to autoconfig and those changed to some new server and I changed Operation Mode to MS Based as in jaimingandhi's link. Before I made those changes it took about 3-4 mins to lock on, now it takes about a minute, so not 15 seconds like others have said, but better. Will do more testing later. I count for two as I've got to Captivates at home. But it looks like different settings work for different people.
Edit: Tried again today, lock takes still 3-4 minutes and loses it constantly and there is no accuracy of location whatsoever.
I updated successfully and still had issues with GPS locks until I powered down my phone, removed the battery, sim card, and external sd card, replaced them, and then rebooted the phone. After that I was getting a GPS lock in 15 seconds or less and not constantly dropping signal as long as I had line of sight to the sky (a.k.a. through the windshield).

GPS problem after official update. Please help

Dear all,
My gps in my phone did not work right when I bought it a few months ago. I followed the instruction in this forum to change the setting under LbsTestMode. After that it had an acceptable performance (5 mins lock time)<=== I think I am a nice guy.
A few days ago, I updated using the official update method. Now the lock time may be more than 15mins, and it makes turn by turn error. Basically it misleads me instead of help me when the gps gives me instruction.
Please help
Can't help, but I can confirm that the AT&T "upgrade" has made my Captivate GPS worse than it already was.
I can see 8 or maybe 9 satellites, but no lock ... it will eventually lock, but is going to take AGES to do so.
Didn't have this problem before the update.
Remember search is your friend. Search the main thread for "gps fix" and find
http://forum.xda-developers.com/search.php?searchid=61448966
See if any of those ideas help.
Added: The only thing that has helped my phone, regardless of the rom I'm using, is the gpsjm9.zip
I have also been having the same issues with my wifes Captivate (mine on Serendipity works fine). None of the "fixes" have done anything so far and have been looking for a modem I can safely flash to her phone that wont brick it and has better GPS capabilities.
Just find a way to start in 5 sec
I used GPS test (free app). It took 5 secs to lock my location. And then I went back to google map. It displayed the location at once
However, I could not get the gps lock if I only start google map and let google map look for my gps information
I have been using GPS Status on her phone to try to get a lock and never see any satellites at my house, whereas my phone gets a lock in about 3 seconds in the same location using GPS Status.

GPS Lock Troubles

I'm sorry if this is addressed somewhere, but I couldn't find anything solid while searching. I use my G2x every day with SportyPal Pro for my bike rides. I am currently running stock 2.2.2 with root and am having some difficulty attaining an initial GPS lock. It seems like when I go to launch any GPS app, it will not get a lock. To get it to work, I have to open GPS Test, select tools, and clear out the A-GPS data. After doing this, it looks almost instantly and will keep a lock forever.
The next day, however, I must do the same thing, and this happens nearly 100% of the time. The funny thing to me is when I open GPS Test, it will show a strong signal from a lot of satellites, around 7-9, but it doesn't use these signals to find the lock. Again, after resetting the A-GPS data, it works every time almost instantly.
I have just dealt with this but it is getting more frustrating. Today, GPS Test wouldn't load, just kept showing a blank screen and force closing eventually, even after fix permissions, clear data, uninstall and reinstall. Only after another reboot, would GPS Test even load. I can't explain because I don't know well how the inner software works, but the GPS seems to have a hard time relocating itself when using the cached A-GPS data. Any fixes that anyone knows of, or things I could try?
Thanks a lot in advance.
jimbo831 said:
I'm sorry if this is addressed somewhere, but I couldn't find anything solid while searching. I use my G2x every day with SportyPal Pro for my bike rides. I am currently running stock 2.2.2 with root and am having some difficulty attaining an initial GPS lock. It seems like when I go to launch any GPS app, it will not get a lock. To get it to work, I have to open GPS Test, select tools, and clear out the A-GPS data. After doing this, it looks almost instantly and will keep a lock forever.
The next day, however, I must do the same thing, and this happens nearly 100% of the time. The funny thing to me is when I open GPS Test, it will show a strong signal from a lot of satellites, around 7-9, but it doesn't use these signals to find the lock. Again, after resetting the A-GPS data, it works every time almost instantly.
I have just dealt with this but it is getting more frustrating. Today, GPS Test wouldn't load, just kept showing a blank screen and force closing eventually, even after fix permissions, clear data, uninstall and reinstall. Only after another reboot, would GPS Test even load. I can't explain because I don't know well how the inner software works, but the GPS seems to have a hard time relocating itself when using the cached A-GPS data. Any fixes that anyone knows of, or things I could try?
Thanks a lot in advance.
Click to expand...
Click to collapse
I dont know how to help but wheres tools in the gps test app? Ahhhh I see gps status not gps test...
smashpunks said:
I dont know how to help but wheres tools in the gps test app?
Click to expand...
Click to collapse
When you launch the app and go to the satellite view screen, press menu, and it is one of the options.
jimbo831 said:
I'm sorry if this is addressed somewhere, but I couldn't find anything solid while searching. I use my G2x every day with SportyPal Pro for my bike rides. I am currently running stock 2.2.2 with root and am having some difficulty attaining an initial GPS lock. It seems like when I go to launch any GPS app, it will not get a lock. To get it to work, I have to open GPS Test, select tools, and clear out the A-GPS data. After doing this, it looks almost instantly and will keep a lock forever.
The next day, however, I must do the same thing, and this happens nearly 100% of the time. The funny thing to me is when I open GPS Test, it will show a strong signal from a lot of satellites, around 7-9, but it doesn't use these signals to find the lock. Again, after resetting the A-GPS data, it works every time almost instantly.
I have just dealt with this but it is getting more frustrating. Today, GPS Test wouldn't load, just kept showing a blank screen and force closing eventually, even after fix permissions, clear data, uninstall and reinstall. Only after another reboot, would GPS Test even load. I can't explain because I don't know well how the inner software works, but the GPS seems to have a hard time relocating itself when using the cached A-GPS data. Any fixes that anyone knows of, or things I could try?
Thanks a lot in advance.
Click to expand...
Click to collapse
Sadly, I am having the same problem
I think I'm having the same problem too: I can pick up plenty of satellites (more than the 3-4 required for a lock), and they turn green, but I don't actually get positioning data available.
andrewNY said:
I think I'm having the same problem too: I can pick up plenty of satellites (more than the 3-4 required for a lock), and they turn green, but I don't actually get positioning data available.
Click to expand...
Click to collapse
Well, I guess if you are seeing the same problem, it could be a software failure. Why can't Android phone makers release a phone with GPS that works out of box? Do they not test these things? Hopefully the Gingerbread update addresses this issue.
I have GPS issues often as well.
Sent from my LG-P999 using XDA Premium App
I don't have this problem but I have heard of others that do. My device locks in literally 3 seconds and is accurate to 5 feet. I have to say it's the best GPS I have ever used.
I think this problem is an android issue not hardware. I have to load gps test on my vibrant before being able to get a lock also. Wont lie the lock time on this phone is considerably longer but when finally does lock its strong and accurate.
via LG G2x
It takes me forever to get a GPS lock too. However, once it finally gets one, it's fairly strong and accurate.
Gps is way crap now.my vibrant beats the crap out of it... I'm getting like 40000 feet accuracy. It eventually works itself out but still crap..
In gps status in tools deleting the a gps stuff it takes a long time (5 seconds) vs my vibrants agps data. Vibrants clears instantly almost like the lg remembers too much causing conflict....
I cant find my location via gps in google maps. In the gps status app, it appeard to be locking as fix/sats shows 3/3. Ive cleared agps data and also tried to download agps data. Does anyone experience a similar issue? Any suggestions as what elsd i can try?
I dont think its the hardware because it did work the last time i tried about 2 weeks ago. Since then I tried to use a location spoofing app (that has since been uninstalled and mock locations disabled).
On the O2X the mongs at LG left out the gps.conf file, adding it manually sped up lock time no end. I guess it's possible they did the same on the G2X?
I actually exchanged a G2x yesterday that was having problems with GPS
Regardless of whether it was on stock or not, rooted or otherwise, my phone would not find any more than 4 satellites, and would never lock. Factory resets did nothing. My fiancee's phone, however, would find 8 or more within 10 seconds when both phones were set right next to each other. Both phones had a 4/05 manufacture date.
Because of that, I was pretty sure my issue was hardware, as I was never able to get the GPS to work properly. The phone they gave me yesterday (4/12 manufacture date) does seem to work ok, though the screen bleeding a bit worse (but that doesn't bother me *that* much)

GPS doesn't lock..

Good evening guys-
After updating from ICS to JellyBean, my gps cannot find or lock onto any satellites.
If I enable wifi, its accurate to 20meters.. If not, it won't lock even after 15 minutes.
Any help is greatly appreciated-
mine has been similar in PA2.00 and CM10.
It actually will lock after a long time. Sometimes up to 30 minutes.
Interested in any answers... I noticed in the gps.conf file agps appears to be off. I don't know if that is the issue.
Unfortunately searching for a fix just reveals too much information with a lot of supposed fixes, but no consensus so far as i can tell.
brian Marshall said:
mine has been similar in PA2.00 and CM10.
It actually will lock after a long time. Sometimes up to 30 minutes.
Interested in any answers... I noticed in the gps.conf file agps appears to be off. I don't know if that is the issue.
Unfortunately searching for a fix just reveals too much information with a lot of supposed fixes, but no consensus so far as i can tell.
Click to expand...
Click to collapse
Actually agps was turned off to improve lock times...some people noticed no difference with it off, others noticed huge improvements with half the lock time
You can change it to true, then wipe cache and dalvic cache in recovery and see if it makes a difference
Sent from my SGH-I997 using Tapatalk 2
mg2195 said:
Actually agps was turned off to improve lock times...some people noticed no difference with it off, others noticed huge improvements with half the lock time
You can change it to true, then wipe cache and dalvic cache in recovery and see if it makes a difference
Sent from my SGH-I997 using Tapatalk 2
Click to expand...
Click to collapse
is that a 'go ahead and try it, it wont work, but go ahead and try it anyway' ?
It seems like a lot of people are having problems with GPS in jellybean, and some aren't. There's so many 'this worked for me' solutions, but I'm starting to think it's coincidence.
Someone mentioned installing and running copilot once. Did that. it didn't work. Without root permissions what could it really change to improve anything?
I ran Faster Fix. It edited my gps.conf file (which it doesn't tell you that it does) It didn't help. it might have made it slightly worse.
I found a few other gps.conf files for jellybean ROMs, but haven't tried those yet.
This is how we learn and share our info, by trying. Just make a back up of anything that you want to change or replace.
GPS works perfect on my PA Jelly Beaned Infuse. First I ran GPS Test, it took a good twenty minutes if not more for it's first lock.
But now, I get a lock in a few seconds.
GPS Test, is free in the market.
Planning my escape!
GPS Test has kicked my GPS in the butt and got it working with almost every ROM I've flashed. Once you get over that first delay (downloading satellite data?) the first time you run it, it locks on fairly well afterward. At least, that's been my experience
Truckerglenn said:
This is how we learn and share our info, by trying. Just make a back up of anything that you want to change or replace.
GPS works perfect on my PA Jelly Beaned Infuse. First I ran GPS Test, it took a good twenty minutes if not more for it's first lock.
But now, I get a lock in a few seconds.
GPS Test, is free in the market.
Planning my escape!
Click to expand...
Click to collapse
I've already done that. It helped the next time I ran maps. When i left work yesterday I had maps give me turn by turn directions home. It took a couple minutes to lock, but after that it was working.
Then this morning I tried again. It wouldn't lock at all on the way in to work this morning. (only a 15 minute drive)
I also tried editing my GPS conf file this morning. I tried using ES file explorer, root explorer, and flashing. All three resulted in an empty file. ES says it was successful. Root explorer gives an error message 'there was not enough free disk space to complete the paste operation'
Flashing says it was successful, but again, it ends with an empty file. 0 bytes.
The file i used for the flash attempt is here. http://forum.xda-developers.com/showthread.php?t=1817558
With the gps.conf file I'm going to go leave the phone out in my car with gps on and see if it locks.
I understand that developers do a lot of work on this. I'm not trying to be a jerk. I just see a lot of people having the same issue and no agreement on a solution or even what the actual problem is.
brian Marshall said:
...
I understand that developers do a lot of work on this. I'm not trying to be a jerk. I just see a lot of people having the same issue and no agreement on a solution or even what the actual problem is.
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Click to collapse
I believe this is because there is no solution. If you want to try to help solve the problem, "adb shell" in and start tinkering.
You'll quickly find that GPS is anything but an easy thing to fix. A good SUPL provider for you may be completely different for others.
I can't find the Answer that fixed it for me,
but what I did:
Plug phone in, disable wifi, leave phone near window, and let
https://play.google.com/store/apps/...251bGwsMSwyLDYsImNvbS5hbmRyb2lkLmdwc3Rlc3QiXQ..
that app run... :45 minutes later it locked (GPS icon on Status Bar stopped blinking and showed locked, solid) with 7 satellites.
waited, rebooted the phone, and it locked in about 3 minutes.
-hope this helps.
other than that, love this ROM!
choffman said:
I believe this is because there is no solution. If you want to try to help solve the problem, "adb shell" in and start tinkering.
You'll quickly find that GPS is anything but an easy thing to fix. A good SUPL provider for you may be completely different for others.
Click to expand...
Click to collapse
Now that is an actual answer.
I suppose part of the problem for us noobs sorting through 300 page threads is all the filler with people saying "great rom omgz so awesome" even when they are posting on the first page and the ROM hasn't even been up long enough to do much more than flash it and swipe through the home screen.
All through out the CM10 and PA threads there are people saying GPS is working flawlessly... and then other people saying they have some fix. I guess people aren't supposed to post frivolous stuff in the dev threads, but they do.
Anyway, I ended up going back to GB as GPS is something I really need.
Hey guy's, i've also been having allot of issues with GPS just not being what it used to be, and it's pretty obvioius that this is an issue across the board for all JellyBean roms. I think those who mention that "GPS works flawlessly" don't quite understand the issue with AGPS (Assisted GPS), or they are not quite testing it thoroughly enough to see the problem.
To get an understanding of what AGPS is, and how it helps improve initial lock times, have a read here: http://en.wikipedia.org/wiki/Assisted_GPS
Also, to gain a better understanding of what I mean by "cold start" as you read below, and how it differs from a warm or hot start please read the following: http://m.gsmarena.com/glossary.php3?term=gps
That being said, i have been doing allot of digging in the hopes that someone out there has a solution to the problem with AGPS on the CM10 based ROMs on our phone.
To clarify the problem: AGPS does not seem to work and Initial lock times from a cold start can take several minutes, (this is not normal if AGPS is doing it's job). To clarify further, no one is saying that GPS does not work, it does in fact work, it just takes it's sweet time to lock and it seems to rely on pure GPS to download ephemeris data from the actual GPS birds for satelite lock acquisition, rather then downloading AGPS data over the network to speed things up. After the initial lock though, GPS functions as it should. After this point, if you do not use the phone again for several day's, it seems that upon first firing it up again you will experience the long delay in first lock. This is especially true if you keep GPS services turned off ussually to conserve battery. Those who report GPS is fine are probably keeping GPS services on all the time, and your GPS is probably working in the background at times and obviously will start up allot faster then it would from a cold start. (This is where i believe all the conflicting info comes from!)
The only info i have been able to find that did actually have an impact on my lock times was the thread below.
http://forum.xda-developers.com/showthread.php?t=1881655
I just started testing this out yesterday and i have seen some positive results. But i would caution those of you out there, and say that this is probably not a "fix" per se, but it did help cut down lock times in my case and at the very least it is a very inoformative thread that everyone should read.
What i have realisticly been able to achieve from a cold start is about 75 seconds to lock at the fastest. i.e. GPS services were off, i turned them all on, and now i started up GPS Status or GPS Test to get a lock. After that, as long as I haven't rebooted my phone it takes only a few seconds to lock.
How i tested, i started GPS Status, I then went to Tools --> MANAGE A-GPS STATE -> RESET (This is important to ensure you are clearing previously cached data. We want to make sure your previous cached info does not skew the effects of your changes.
I then replaced the gps.conf with the one contained in that thread, and i also made the change that was suggested in the Notes section that suggested modifying or adding a line in your build.prop file to "ro.ril.def.agps.mode = 1". This change set's your gps to use AGPS in Mobile Station Based (MSB) mode. For reference, setting it to "2" would set your AGPS to function to Mobile Station Assisted (MSA) mode. (Mode 1 - gave me more accurate initial locks at the expense of a bit longer lock times, Mode 2 gave me slightly quicker initial lock times, but was rather flaky and my position drifted quite a bit until GPS was running for quite some time.)
If your curious what is the difference between the two modes, see here: http://en.wikipedia.org/wiki/Assisted_GPS#Modes_of_operation
After making the changes to gps.conf and build.prop i rebooted my phone. When phone reboots, i then go back into GPS Status app, select settings, Tools --> MANAGE A-GPS STATE -> RESET, and then back to settings, Tools --> MANAGE A-GPS STATE -> DOWNLOAD (This should force the phone to attempt an AGPS download, if it hasn't already done so upon launching the app).
I have seen this same gps.conf being used in the newer RemICS-JB build. However based on the lack of feedback in that thread, i don't know if this is the golden fix we have all been looking for.
Even though this may not fix all your issues, i hope at the very least it helps clear up what the actual problem is, and how AGPS is supposed to work.
** Important Notes: **
- The version of the config that i was using was the Download the Google Specific No-SSL v3.1
- If you use the SSL version, then it will also require that you download the certifcate file. It's best to just stick with NO SSL as is explained in the thread.
- You should also note that i have cleaned out all the live wall papers, face unlock, and allot of other crap that i don't use to free up space in the /SYSTEM partition. I now have aproximately 21MB free in this partition. I think at least part of the problem with certain ROM's is that they have the /SYSTEM partition filled to the max with virtually no free space at all. I'm no expert on the subject, but i'm guessing that the AGPS data get's downloaded to this partition some where. Obviously if there is no space, then that would cause issues. Several others have reported shortened initial lock times after making room in the /SYSTEM partition.
- Another mistake people are making when testing AGPS and reporting false info, is having their WIFI on when testing GPS. To isolate the issue guy's you need have wifi off and you need to use a tool like GPS Status or GPS Test that shows that actual lock to satelites. You cannot properly test this and see the issue by using WIFI and turning on Google maps. Google maps will look at your reported wifi position and to you it looks like bamm.. i just got a lock in 2 seconds to withing 50 meters, wow these guy's are nut's, my GPS is awesome. Guess what.. your wifi and google maps is awesome.. not your GPS.. lol
- If anyone is familiar with running log's, it would be great if you could do a comparison of before and after. Showing the log of a completely fresh JB build, that shows that the AGPS data is not being downloaded, and then another log after all the changes above (including freeing up space in /SYSTEM) and hopefully it will show that AGPS data is now being downloaded and utilized. I myself am not familiar with logging data on the infuse, so i cannot and will not call this a fix until someone can actually show with real log's that AGPS data is now being utilized after these mods.
Thankfully, I'm one of the lucky ones who have always had a working GPS. It worked great when I was running AT&T stock Froyo, really good while I was on XDA GB roms, and fair > good after I went to PA JB. By far Scott's latest release of PA JB has been the best in this respect, but I can't help but tinker now that I've turned into a Droid zombie Strictly speaking the stock GPS configuration included on Scott's PA JB ROM worked charmingly, but I still had an issue whenever the phone went into deep sleep (say overnight without using it) the GPS lock the next morning took almost as much time coming from a sleep state as a cold boot. So, Like DaMeatMan I decided to give http://forum.xda-developers.com/showthread.php?t=1881655 a go. I chose the flashable option, and like DMM also edited the prop file. I picked the Google "no SSL" version 3.1 instead of the AT&T specific version. I figured I would give that one a try.
I'll keep everyone posted, buy my first impression (could be placebo effect) is that this configuration file and modification actually does improve over the original PA JB configuration by a small margin. Reported accuracy is better (by 10ft on average). Satellites in view and actually locking are 1-2 better than before. My main hope is that I can actually fire up Navigation in the morning and get working directions without having to fire up GPS Test first and relock all the NA satellites. I travel a lot, both for business and outdoor sports (hunting and fishing), and I have come to rely pretty heavily on GPS. I got spoiled when I got my first GPS capable phone because that meant I could leave my handheld GPS at home most of the time and that was one less thing I had to carry.
wevsspot said:
Thankfully, I'm one of the lucky ones who have always had a working GPS. It worked great when I was running AT&T stock Froyo, really good while I was on XDA GB roms, and fair > good after I went to PA JB. By far Scott's latest release of PA JB has been the best in this respect, but I can't help but tinker now that I've turned into a Droid zombie Strictly speaking the stock GPS configuration included on Scott's PA JB ROM worked charmingly, but I still had an issue whenever the phone went into deep sleep (say overnight without using it) the GPS lock the next morning took almost as much time coming from a sleep state as a cold boot. So, Like DaMeatMan I decided to give http://forum.xda-developers.com/showthread.php?t=1881655 a go. I chose the flashable option, and like DMM also edited the prop file. I picked the Google "no SSL" version 3.1 instead of the AT&T specific version. I figured I would give that one a try.
I'll keep everyone posted, buy my first impression (could be placebo effect) is that this configuration file and modification actually does improve over the original PA JB configuration by a small margin. Reported accuracy is better (by 10ft on average). Satellites in view and actually locking are 1-2 better than before. My main hope is that I can actually fire up Navigation in the morning and get working directions without having to fire up GPS Test first and relock all the NA satellites. I travel a lot, both for business and outdoor sports (hunting and fishing), and I have come to rely pretty heavily on GPS. I got spoiled when I got my first GPS capable phone because that meant I could leave my handheld GPS at home most of the time and that was one less thing I had to carry.
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I have been have many of the same problems as others in this thread but I tried the fix in the S3 thread quoted above and it seems to have helped for right now. The first time I ran GPS Test after rebooting it did take a while (5-8min), but after that I get a lock in few seconds. I used the Google "no SSL" package also. I will do some more testing tomorrow and see if its reliable.

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