GPS is the biggest factor I look at when I'm going to try a rom.
I've been reading a lot of threads and came to a conclusion that official froyo had a really good gps.
Now I never really had good gps with any rom I tried. Is this worth a try??
And does it really have good gps?
Sent from my SGH-I897 using XDA App
Not for me. No matter what rom I tried if I didn't apply the gpsjm9 zip fix gps sucked eggs all day. Every Captivate is different otherwise Samsuck would have posted a one fixes all solution.
How do you apply the gps fix?
Sent from my SGH-I897 using XDA App
Flash with CWM
bluemoon1221 said:
How do you apply the gps fix?
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
the froyo captivate leaks and some other i9000 roms have the same gps libraries as jm9. it is placebo effect on some roms, on others it helps. the official froyo has a different modem and libraries but i dont care to test them out. i was concidering making a flashable .zip with da_g's fix and jm9 files and some adjustments to what da_g had that i made with guidance from his thread, as well as a modem.bin either jl3 or kp1 but everyones experience is so different that it would be useless. half the comunity would say it doesn't work and the other half would say great job even though i would just be using mostly someone elses work. bottom line is you just need to try stuff.
modem.bins make a big difference!
data/gps/secgps.conf needs to agree with lbs test mode
jupiter.xml needs to agree also.
some leaked roms would crash the glgps daemon if the above files weren't in agreement
the newwer glgps daemons seem to work better
some modem.bins need different gps libraries than others.
basically the hardware can work satisfactorily but not exceptionally (not that any phone does) with some tweaks, i dont know what samsung did wrong but the fix seems to be different for everyone.
my best setup for driving is da_g fix for control plane. (forced pedesrtian mode in jupiter.xml to get true output which is better for testing the accuracy, but it might not be better for tracking, plumb bob's fix doesn't force pedestrian mode so try both)
set gps for standalone in lbs test mode, dynamic accuracy is off. supl setting set to control plane and supl.google.com
accuracy set to 95 in both lbs test mode and data/gps/secgps.conf
use kp1 modem. jl3 also works great but shows fewwer satalites
also msbased agps can help you get a faster lock, use plumb bob's fix, and set to ms based in lbs or use da_g's fix and change secgps.conf to MSBASED
try different modems, try different accuracy settings. try dynamic accuracy and gps plus on or off, if you really get into da_g's first post try setting attenuation to deal with backround noise, ect.ect.
cappysw10 said:
Flash with CWM
Click to expand...
Click to collapse
Do I just flash this like rom? I have no idea what to do....
Sent from my SGH-I897 using XDA App
Dani897 said:
the froyo captivate leaks and some other i9000 roms have the same gps libraries as jm9. it is placebo effect on some roms, on others it helps. the official froyo has a different modem and libraries but i dont care to test them out. i was concidering making a flashable .zip with da_g's fix and jm9 files and some adjustments to what da_g had that i made with guidance from his thread, as well as a modem.bin either jl3 or kp1 but everyones experience is so different that it would be useless. half the comunity would say it doesn't work and the other half would say great job even though i would just be using mostly someone elses work. bottom line is you just need to try stuff.
modem.bins make a big difference!
data/gps/secgps.conf needs to agree with lbs test mode
jupiter.xml needs to agree also.
some leaked roms would crash the glgps daemon if the above files weren't in agreement
the newwer glgps daemons seem to work better
some modem.bins need different gps libraries than others.
basically the hardware can work satisfactorily but not exceptionally (not that any phone does) with some tweaks, i dont know what samsung did wrong but the fix seems to be different for everyone.
my best setup for driving is da_g fix for control plane. (forced pedesrtian mode in jupiter.xml to get true output which is better for testing the accuracy, but it might not be better for tracking, plumb bob's fix doesn't force pedestrian mode so try both)
set gps for standalone in lbs test mode, dynamic accuracy is off. supl setting set to control plane and supl.google.com
accuracy set to 95 in both lbs test mode and data/gps/secgps.conf
use kp1 modem. jl3 also works great but shows fewwer satalites
also msbased agps can help you get a faster lock, use plumb bob's fix, and set to ms based in lbs or use da_g's fix and change secgps.conf to MSBASED
try different modems, try different accuracy settings. try dynamic accuracy and gps plus on or off, if you really get into da_g's first post try setting attenuation to deal with backround noise, ect.ect.
Click to expand...
Click to collapse
Thanks for taking your time and explaining everything!!
Sent from my SGH-I897 using XDA App
hi, I want to try this fix, im noob, completely stock 2.2, nvr tried to flash any rom.. just flashing this to my stock rom or nid a custom rom first to flash? >.<
hi, I want to try this fix, im noob, completely stock 2.2, nvr tried to flash any rom.. just flashing this to my stock rom or nid a custom rom first to flash? >.<
cappysw10 said:
Flash with CWM
Click to expand...
Click to collapse
Sent from my SAMSUNG-SGH-I897 using XDA App
bluemoon1221 said:
GPS is the biggest factor I look at when I'm going to try a rom.
I've been reading a lot of threads and came to a conclusion that official froyo had a really good gps.
Now I never really had good gps with any rom I tried. Is this worth a try??
And does it really have good gps?
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
There is an app there in apps section thread about telenav it is free for basic gps function (it is not on the market but you can download it at their site). i already installed it myself yesterday but haven't tried it yet seems other user found it to be a great app compared to stock and other moded gps app in custom roms. Maybe you can try it and test who knows maybe it works, others have positive outcome of it. I think it is just a new post so you can still find it easily on the thread and there are instructions also posted.
here is the link:http://forum.xda-developers.com/showthread.php?t=977576
bluemoon1221 said:
GPS is the biggest factor I look at when I'm going to try a rom.
I've been reading a lot of threads and came to a conclusion that official froyo had a really good gps.
Now I never really had good gps with any rom I tried. Is this worth a try??
And does it really have good gps?
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
There is an app there in apps section thread about telenav it is free for basic gps function (it is not on the market but you can download it at their site). i already installed it myself yesterday but haven't tried it yet seems other user found it to be a great app compared to stock and other moded gps app in custom roms. Maybe you can try it and test who knows maybe it works, others have positive outcome of it. I think it is just a new post so you can still find it easily on the thread and there are instructions also posted.
gorgy76 said:
There is an app there in apps section thread about telenav it is free for basic gps function (it is not on the market but you can download it at their site). i already installed it myself yesterday but haven't tried it yet seems other user found it to be a great app compared to stock and other moded gps app in custom roms. Maybe you can try it and test who knows maybe it works, others have positive outcome of it. I think it is just a new post so you can still find it easily on the thread and there are instructions also posted.
Click to expand...
Click to collapse
I don't get it.using this app does not fix my gps at all..its just another navigator app..
Sent from my phone
Dani897 said:
the froyo captivate leaks and some other i9000 roms have the same gps libraries as jm9. it is placebo effect on some roms, on others it helps. the official froyo has a different modem and libraries but i dont care to test them out. i was concidering making a flashable .zip with da_g's fix and jm9 files and some adjustments to what da_g had that i made with guidance from his thread, as well as a modem.bin either jl3 or kp1 but everyones experience is so different that it would be useless. half the comunity would say it doesn't work and the other half would say great job even though i would just be using mostly someone elses work. bottom line is you just need to try stuff.
modem.bins make a big difference!
data/gps/secgps.conf needs to agree with lbs test mode
jupiter.xml needs to agree also.
some leaked roms would crash the glgps daemon if the above files weren't in agreement
the newwer glgps daemons seem to work better
some modem.bins need different gps libraries than others.
basically the hardware can work satisfactorily but not exceptionally (not that any phone does) with some tweaks, i dont know what samsung did wrong but the fix seems to be different for everyone.
my best setup for driving is da_g fix for control plane. (forced pedesrtian mode in jupiter.xml to get true output which is better for testing the accuracy, but it might not be better for tracking, plumb bob's fix doesn't force pedestrian mode so try both)
set gps for standalone in lbs test mode, dynamic accuracy is off. supl setting set to control plane and supl.google.com
accuracy set to 95 in both lbs test mode and data/gps/secgps.conf
use kp1 modem. jl3 also works great but shows fewwer satalites
also msbased agps can help you get a faster lock, use plumb bob's fix, and set to ms based in lbs or use da_g's fix and change secgps.conf to MSBASED
try different modems, try different accuracy settings. try dynamic accuracy and gps plus on or off, if you really get into da_g's first post try setting attenuation to deal with backround noise, ect.ect.
Click to expand...
Click to collapse
Actually I wound up changing my fix to force pedestrian mode too in more recent versions, though unlike da_g I kept position smoothing enabled. It's a matter of finding the right cocktail of configurations and compromises for the most users in the most situations, but not everyone's needs are the same.
Sent from my GT-I9000 using XDA App
Related
after applying the attached zip through CWM the GPS is finally working!
instructions:
1. apply the fix through CWM
2. in LBSTestMode:
a. verify all values in the application test are default
b. in the SUPL put supl.google.com and change the port to 7276 with no secure socket
c. wipe GPS data
3. after the first fix (~3 minutes) you will get a fix instantly almost in any condition at any time
the fix was validated on 2 different vibrants with GPS issues
goodluck
big credit to:
Mr. Pilot
BobLeponge23 & johndoe1000
No offense, but who are you? I'm not one to flash random zips I download off the internet.
stealthx32 said:
No offense, but who are you? I'm not one to flash random zips I download off the internet.
Click to expand...
Click to collapse
He got this from the i9000 forums. I've personally used this, and it helps with the gps dramatically.
Sent from my SGH-T959 using XDA App
This is an old, well known pre-JI6 fix. DO NOT APPLY! This also NOT development related, try the General forum next time.
Hi all,
you can say what you want about this fix however, both I and BobLeponge23 have vibrant's phones with GPS issues.
we have tried all possible fixes:
JI6, JI2, JK2, JK6, samsung restore app, changing all the settings through LBSTestMode
nothing worked until we tried this fix.
The change is instant.
we have now a working GPS under:
the new axura 2.1 (JK6) and Obsidian_V5_beta (with modem JI6 installed).
Ok. Won't argue with that. Whatever works for ya!
Do you have "Use wireless network" unchecked? And WiFi off? With only "Use GPS Sat" checked? Cause that is the only way to see if your GPS is really fixed.
Sent from my Samsung Vibrant Galaxy S using XDA App
in LBS Test mode you wont get fix just with wireless networkor or WiFi.
in general when the GPS icon is flushing you dont have a satt. fix although
you might get general fix from the wireless network.
DreamcastDC said:
Do you have "Use wireless network" unchecked? And WiFi off? With only "Use GPS Sat" checked? Cause that is the only way to see if your GPS is really fixed.
Sent from my Samsung Vibrant Galaxy S using XDA App
Click to expand...
Click to collapse
That's not a good test for phone GPS units. The phone's GPS uses network location to help get a faster fix. Apps like GPSTest, GPSStatus, and LBSTestMode won't report a GPS fix with only a network/wifi fix, so I don't understand the obsession with this sort of a test. All it will do is slow down your GPS locks.
Disabling wifi does make a difference on newer firmware (worked on JFD, but JI6 and up broke it). With wifi connected, the phone doesn't download the GPS data properly, so it acts like a standalone GPS and will take a long time to get the needed data from the GPS sats.
The GPS chips in our phones are NOT designed to get fast locks without assist data. Even the ones that are, sometimes take a while for the accuracy to really get good because of this data. That's why you should have a data plan for best results. The GPS needs data to calculate your position. It can get the data from the sat network, but that's SLOW. Getting it over the internet is many times faster, even over GPRS. That's one reason why it's irritating that wifi doesn't work with it. Those without data plans are basically screwed. GPSStatus seems to be able to get it over wifi, so you can try that. The data should be good for up to 24 hours.
I have no idea what this fix does, and I won't be installing it as I'm satisfied with the GPS performance post JI6 with my phone. Even with JFD, it worked fine once I set the supl settings up.
they are sharing a fix.
[highlight]Mod Edit: Watch your language[/highlight]
epakrat75 said:
This is an old, well known pre-JI6 fix. DO NOT APPLY! This also NOT development related, try the General forum next time.
Click to expand...
Click to collapse
Honestly, it worked for me on JK6.....
Sent from my SGH-T959 using XDA App
If this is working for folks where flashing Axura 2.1 didn't then, that's all that matters. Go for it. However as I'm running Axura 2.1, I have no need of this.
I just don't want people thinking this is the ultimate fix and breaking their phones trying it. I've seen it happen with simpler fixes.
I was using a jk2 rom also, and GPS would work at times, even in a large Metro area. i flashed this, and now I even get GPS locks inside of buildings where it would never lock before. I am happy. Indoors, it gets a lock in about 10 - 12 seconds, outdoors about 5 or less.
I don't understand how it can work, it uses jupiter.xml subsystem that TMO US Vibrant lacks
lqaddict said:
I don't understand how it can work, it uses jupiter.xml subsystem that TMO US Vibrant lacks
Click to expand...
Click to collapse
JK2 and JK6 now use the Jupiter xml
is this working in eugenes ginger clone?
is this working in eugenes ginger clone?
It worked for me! Why don't you just test the files and see why it works instead of whining?
saved
10char
well fellas, i have so much dragons in the vibrant already i figure what could possably go wrong now lol. Running nero beta 3 and it actually works,got an instant lock on precisely where i was,dident had that before with all the other fixes,couldent believe it but yep works. Thanks for this fix
Didn't make a difference for me. Since JK2 ive always got a fix in under a minute. With this installed it was over a minute but under two minutes. I'll keep it for a day to side if anything changes and report back.
I'm running a vanilla SxE4.1 with super io kernel.
Sent from my SGH-T959 using XDA App
I have tried every single GPS fix out there on this forum but my GPS is still not working... inside a building GPS test says that there is no satellite in view.... outside I see about 6 and locks to about 3 or 4....
(But it takes like 5min to lock)...
Is there something wrong with my phone? And btw I'm running cognition rom and I'm rooted.(if this has anything to do with it...
Sent from my SAMSUNG-SGH-I897 using XDA App
Try the Darky port that uses Da_G's fix. Best GPS experience I've had so far with this phone and the only thing that has realistically improved performance.
bluemoon1221 said:
I have tried every single GPS fix out there on this forum but my GPS is still not working... inside a building GPS test says that there is no satellite in view.... outside I see about 6 and locks to about 3 or 4....
(But it takes like 5min to lock)...
Is there something wrong with my phone? And btw I'm running cognition rom and I'm rooted.(if this has anything to do with it...
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
my best gps performance has come from two roms
Chronus and Doc's newest rom.
Did you change any supl settings?
For me the supl.google.com settings never worked as well as leaving it @ www.spirent-lcs.com
build = 1007.
I have had great gps since i switched to assonance, latest version of axura worked for me as well, you may want to give them a try, or try their gps settings and modem over cognition.
If that doesn't work you may want to scratch/erase the white contacts of the cover as one post said to maybe increase its signal.
I would return it..you should be able to lock faster than 5 mins and see more than 6 satellites
I agree with fldude... my first one wouldn't see anything. My second one works as well as anyone's. Exchange it.
I really can't return it cause I didn't buy this phone....
So I'm gonna try all the roms... thanks for the info guys
Sent from my SAMSUNG-SGH-I897 using XDA App
Most of the newer ROM's have GPS fixes built into them
I'm running Assonance's latest build and although it's not perfect - I usually get 8-10 sats in under 15 seconds to lock-on.
I just started using the latest assonance and it has great gps thanks.
Sent from my SAMSUNG-SGH-I897 using XDA App
bluemoon1221 said:
I really can't return it cause I didn't buy this phone....
Click to expand...
Click to collapse
Even if it's a gift you can return it, unless of course you've "borrowed" it...
Technically nobody bought this phone... long story..... anyway I'm good with my GPS now
Sent from my SAMSUNG-SGH-I897 using XDA App
bames said:
my best gps performance has come from two roms
Chronus and Doc's newest rom.
Did you change any supl settings?
For me the supl.google.com settings never worked as well as leaving it @ www.spirent-lcs.com
build = 1007.
Click to expand...
Click to collapse
i agree mostly that that using the google server didn't help me at all and the roms you mention are quite good. but i have the bug where the daemon crashes on chronus, but cronus has the ability to lock very very fast on my phone, i have had great luck with captivate builds in general. da_g's files fix the daemon crashing mostly but are not considered a fix. there is still an underlying issue that causes eratic behavior in certain situation. da_g has yet to pin it down but it may be an interference issue.
OP you may have a poor contact at the antenna, some vibrant users were cleaning the contacts for the antenna, there are many antennas and im not sure which is for gps.
also you may want to try with/without backplate, and clean the contacts on that. some users have posted numbers showing marginally better signal without the backplate.
also i have yet to do real testing but anecdotally the old jm9 libraries seem to behave less badly. it still jumps the position around in some situations but it just seems like it jumps less, i will do a mytracks comparison soon. but for the issue the op is having it seems to me that i get faster locks with the newer files, particularly from jj4.
lastly the modem has a great effect on the gps signal. for ability to lock jl3 seems the fastest. but to be honest i think the phone didnt jump the position around as much on jj4 or ji6 which give up hsupa and should be used with the a captivate rom. jk3 and jk4 were also good maybe better with the position jumping thing than jl3.
EDIT: one last thing is to try the gps restore app. i know it says it only resets lbs test mode settings but it also clears "something" that has helped with a bug causing the daemon to crash on my phone(it doesnt crash on every phone like it did on mine) the only other thing that i tried that was able to "fix" that bug was to do a factory reset. clearing gps data never helped. so the error seems to be in data somewhere but is not cleared when you clear gps data in lbs test mode. the samsung app also did not restore my lbs settings to factory so the ad may be mis-informed. i think of it as a easier way to clear gps data which at times yeilds better result, it is not a fix. your experience may vary.
Hello:
I need a list with all the gps related files.
I'm triying to make a CWM update with the JI6 gps files.
The reason I'm triying to do this its because JI6 was the only rom at the moment wich gave me acceptable GPS.
Thanks in advance.
Whipon.
EDIT: I forgot to mention, I have a rev 1006 Captivate.
Usually I see from 6 to 8 sats, but never get a lock.
I've tried several roms (rogers froyo, JPY, WSJ3, Adromeda) with the same results.
I can't get a lock.
With JI6 I got a lock in seconds.
gps is funny and i think the files you are reffering to are the same on several roms since ji6. actually ji6 would crash the gps daemon on my phone if i changed the lbs test settings. and as far as i can find ji6 jj4 and jm9 and many other i9000 roms all have the same libraries. whatever the other differences may be it might be hard to find the files and they might not work on x rom
if i where you id try the gps restore app. i can tell you it doesnt do what the description suggests because i have used it and it doesnt set lbs settings to stock. my lbs changes remain after i run the app. also it clears gps data that lbs test mode doesn't. a gsm reset or factory reset can fix some gps problem if the problem is in data. the gps restore app seems to have a similar effect but you dont need to backup your apps to use it like a factory reset. if it doesnt work youve wasted 2 minutes to install and run it.
read da_g's first post in his thread and then read it again. try all of his fixes and make sure the lbs settings match the config and jupiter files for each fix. i find that the control plane version works the best for me.
also have you tried the ji6 modem on those roms? the modem is critical. some modems get better reception and may also pickup more noise. you may need to attenuate the signal, noise may be preventing a fix, the signal can be attenuated in jupiter.xml. or you may need a stronger signal, maybe ji6 modem is giving you better reception.
Well, it seems it worked
Well, I'm editing the post, because it worked.
Changed all settings in LbsTestMode to the default Darky ones.
Cleared gps data.
Then loaded Gps Restore and it successfully completed all tasks.
Got a gps lock in seconds with 25 meters accuracy.
Its far better than nothing.
Thank you very much for your help .
Its not working well
Well, tried the gps with LbsTestMode and I get a lock as I said with 25 meters accuracy.
However Ndrive can't give me my current position. It shows me in at least 100 meters from I really am, in some random street.
Google Maps has a 1500 meters accuracy.
All is left is tweaking jupiter.xml.
I don't want to use JI6 modem because it doesn't support HSDPA.
Currently I'm using JK4.
It seems its fixed
Well, did some tweaks to jupiter.xml and after a reboot I got a lock in around 5 seconds with a 10 meters accuracy.
I noticed my jupiter.xml had the spirent supl server instead of the google one.
All tests were done in my house. I have to test it tomorrow in the street.
I will post my results tomorrow ^^.
Has the GPS issue been fixed with the Custom ROMS such as
Darky's... How long does it take to get a fix?
Depends upon your phone its GPS settings modem used etc . Custom means custom not GPS fix .
Kitchin rom JPY modem apns settings to local server and i find no problem with my GPS .
http://forum.xda-developers.com/showthread.php?t=817703
jje
owen1978 said:
Has the GPS issue been fixed with the Custom ROMS such as
Darky's... How long does it take to get a fix?
Click to expand...
Click to collapse
You can take a look at Cypher_X's post about gps
To my knowledge the modem and the kernel are important to the gps performance, the ROM not at all. experiment for yourself.
I'm on a kitchen ROM with speedmod and it works without any issues
Have a look at gpsaids in the market. Works for me.
Sent from my GT-I9000 using XDA Premium App
I am trying different ROMS (Insanity, Darky's, stock Gingerbread) and everything seems to be ok. Fix in less than 15 seconds!
Hope this helps.
Bye
edit: and GMaps navigation too.
Define fixed? What are you planning to do with it?
Do you want fast locks, high enough accuracy when driving, good sensitivity, or do you want it to be as accurate (if not more ) than fitness devices?
Hello, I'm a recent owner of a SGS, and like many others, GPS is somewhat of an issue to me. However, reading around, there are a lot of fixes and solutions, and I want to know what people generally recommend to do on latest stock firmware to increase its accuracy?
Thanks!
I know it's a dumb name, but give "GPS AIDS" a try from the market. It was primarily made for SGS users. Try the free version first if still available...
Sent from my MB860 using xda premium
stock jvt gps is really good in comparison to out-of-box performance, and a lot better than wife's htc desire running on cm7.1. I get 10+ satellite lock in a few seconds, with a 10m accuracy. honestly, I don't need anything more than that (more often than not, I DO know where I am...) . Just make sure gps.conf file points to your region.
I tried recently a couple of these "fixes" ($omator, pfittech) but reverted back to stock files. I did not find any significant improvement, but of course you can give it a try, maybe in your region things are different
Well, thing is I don't know if GPS is working or not for me. In Google Maps the most accurate I can get is 30 meters, is that using cell triangulation or GPS?
Apparently 30 meters is not GPS from what I've been reading around. Guess that means I haven't used it at all.
Try GPS AIDS.
My GPS never worked before, I tried GPS AIDS and it gave me surprising results .
It's my pleasure to visit my Topic..:
www.adslgate.com/dsl/showthread.php?p=1062791832
screamwork said:
It's my pleasure to visit my Topic..:
www.adslgate.com/dsl/showthread.php?p=1062791832
Click to expand...
Click to collapse
Topic link not working
Anyway, I tried GPS Aids, and I get 10/11 found, and in use alternating between 5-10.
I just want to confirm, what does accuracy average at for you guys? It was mainly at 30 meters for me most of the time, with it rarely at 10m. Is there a way to increase accuracy?
Lesiroth said:
Topic link not working
Anyway, I tried GPS Aids, and I get 10/11 found, and in use alternating between 5-10.
I just want to confirm, what does accuracy average at for you guys? It was mainly at 30 meters for me most of the time, with it rarely at 10m. Is there a way to increase accuracy?
Click to expand...
Click to collapse
Mine is accurate enough to tell which house I'm at. In Google Maps, there is no blue circle around my location (well, only when it's still searching).
I use GPS AIDS. If the program doesn't work, read about what it does. You can also edit the files manually.
upichie said:
Mine is accurate enough to tell which house I'm at. In Google Maps, there is no blue circle around my location (well, only when it's still searching).
I use GPS AIDS. If the program doesn't work, read about what it does. You can also edit the files manually.
Click to expand...
Click to collapse
Nope, I have a blue circle around me all the time. Guess that means it's not working well for me?
Lesiroth said:
Nope, I have a blue circle around me all the time. Guess that means it's not working well for me?
Click to expand...
Click to collapse
Yep, it probably could be better than that. Give GPS AIDS a try.
Lesiroth said:
Hello, I'm a recent owner of a SGS, and like many others, GPS is somewhat of an issue to me. However, reading around, there are a lot of fixes and solutions, and I want to know what people generally recommend to do on latest stock firmware to increase its accuracy?
Thanks!
Click to expand...
Click to collapse
How to do GPS Fix
http://www.hdtechvideo.com/?p=43
Ever since I flashed to JVR stock, my GPS has been locking on the satellites like a charm. I'm not sure if the credit goes to the new JVR or higher firmware, but definitely give that a try if you're still on some of the older Gingerbread firmwares.
GPS AIDS doesn't seem to improve that much, still usually on 30m, rarely at 10m, not really accurate.
I really need help with this, thanks in advance!