Database Info

Gingerbread GPS Fix (Not proper)

I found this fix to fixing GPS in Gingerbread mentioned: Here. I've included a CWM compatible zip for easy installation. It flashes libgps.so to system/lib. I went from 0/2 to 4/8 sats in GPS Status with accuracy down to 8m. It seems to work well and it was pretty simple compared to the Froyo fix. Hopefully this works for you as well.
Edit: Fix removed.
Proper fix: Here.

Very cool!
I was getting really fed up with my Epic. The GPS was hanging on and off.
I just applied your fix and it locks on 9 satellites with accuracy to 3-feet in under 5-seconds. Thanks!

Going to give this a try, 2/10 Satellites before, the same after. Thanks for the work though. Mines just a punk epic

No difference here. If anything it's a little worse, but the process is somewhat subjective.

No difference here either. Always half of the total found. I can get 5 locks once it finds 11 satellites.
Sent from my SPH-D700 using XDA App

Yep, same here. No difference. I always get 2/9, 3/10, or 4/11. As a comparison, on CM7 I always get most if not all the satellites found (if it finds 10, I'll get 9/10 or 10/10).

Did you update your modem too?
Not sure if it makes a difference, but I had previously updated my modem with EH06. It makes sense that that modem would work well with the GB files.

I'm using EH22 rom with the EH22 modem. No difference either. Wonder what's wrong with the GPS...

cornaljoe said:
I found this fix to fixing GPS in Gingerbread mentioned: Here. I've included a CWM compatible zip for easy installation. It flashes libgps.so to system/lib. I went from 0/2 to 4/8 sats in GPS Status with accuracy down to 8m. It seems to work well and it was pretty simple compared to the Froyo fix. Hopefully this works for you as well.
Click to expand...
Click to collapse
Ummm. This is a proprietary file from a device (Desire CDMA - BravoC) which has an entirely different platform. This just means that libgps contains the same methods/calls as ours. This would hinder more than hurt since it's an entirely different platform.

The other GPS fix thread DOES work! Deca told me that its a proprietary daemon used by fascinate which is also used on the selfkang on CM7. I can confirm it DOES work. 7 out of 8 now indoors. Here:
http://forum.xda-developers.com/showthread.php?t=1321049

I was planning on doing some more research on getting this working properly tonight but looks like I was beat to it. Nice work. Glad to see a proper fix up.

cornaljoe said:
I was planning on doing some more research on getting this working properly tonight but looks like I was beat to it. Nice work. Glad to see a proper fix up.
Click to expand...
Click to collapse
Hey, thanks for contributing either way
Sent from my SPH-D700

Yes, thanks C. Your efforts do not go unnoticed or unappreciated.

[Q] July Baseband/ Custom Rom/ Instant GPS

Hello All
I Recently updated my baseband after much frustration with GPS and pleased to say i now have GPS instant locks. real instant locks 1-2 Second. Now, I am really wanting to flash a custom rom w/out losing my current GPS state. Can anyone confirm that has done the same thing (updated baseband and achieved instant locks) That after you flashed a custom rom you still have instant GPS locks? and which Custom rom you flashed? Thank you in advance EVERYONE.

You can flash a stock 2.3.3 based ROM, and GPS will work perfectly.
Sent from my LG-P999 using xda premium

Awesome thanks! btw which one did you flash?

shane1diamond said:
Awesome thanks! btw which one did you flash?
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Click to collapse
I'm running Gigglebread, which can be found on RootzWiki.
I've never experienced an issue with it, and GPS locks are pretty good. I average 14-16 hours of battery life @ 1.2GHz OC with -100 mV underclock with Faux123 CM Kernel.
For a stock based ROM, I would recommend Tsugi's 2.3.4 ROM.

Thanks for your reply. I ran tsugi previous to updating my baseband and yes tsugi was great. Does it not matter that it is stock 2.3.4? And not 2.3.3 based. Gps wise?

shane1diamond said:
Thanks for your reply. I ran tsugi previous to updating my baseband and yes tsugi was great. Does it not matter that it is stock 2.3.4? And not 2.3.3 based. Gps wise?
Click to expand...
Click to collapse
Nope, it's all based of stock ROMs.

12/26 update- I ended up reflashing weapon 3.0 (rom i had previous to Tsugi) I ran that the longest of any rom, i really liked the functionality of it: fast, quick panel toggles etc were super useful. only problem was GPS. After update/re-root/re-flash of weapon. I am excited to say still have instant GPS locks!! YAY. Thanks FatalityBoyZahy for helping me decide whether i should do it or not

shane1diamond said:
12/26 update- I ended up reflashing weapon 3.0 (rom i had previous to Tsugi) I ran that the longest of any rom, i really liked the functionality of it: fast, quick panel toggles etc were super useful. only problem was GPS. After update/re-root/re-flash of weapon. I am excited to say still have instant GPS locks!! YAY. Thanks FatalityBoyZahy for helping me decide whether i should do it or not
Click to expand...
Click to collapse
I'm so glad I found this, cuz I'm xtremely satisfied with weapon 3.0 and dont wanna go back to stock,,,,
So just to recap a bit, you went back to stock, updated baseband, reflashed weapon and all is good? when you reflashed did your wipe cache & dalvik and format sys?
And also, are you having any problems with usb not mounting extrl sd to computer?

txr_maxx said:
I'm so glad I found this, cuz I'm xtremely satisfied with weapon 3.0 and dont wanna go back to stock,,,,
So just to recap a bit, you went back to stock, updated baseband, reflashed weapon and all is good? when you reflashed did your wipe cache & dalvik and format sys?
And also, are you having any problems with usb not mounting extrl sd to computer?
Click to expand...
Click to collapse
Yes. I was running tsugi, then updated baseband, reflashed CWM using NV flash, Rooted using JBoxer posted root.zip, then reflashed weapon, before flashing I followed whitehawks directions in OP: I wiped/ data factory, wiped system. Then flashed the rom, Everything runs perfect as it did before only now I get instant gps locks, data, wifi, mounting ext and int sd works perfect as it always did. Hope that helps

Now an even more stupid question. I have service through Cincinnati Bell... if I want to update my baseband, do I need to find a special file? Or will the July basebanf thread work? Is that baseband file specific to T-Mobile ?
If I need a specific baseband for Cincinnati Bell, would anybody know where.to go for that information? It seems that the.Cincinnati Bell G2x users are an ultra small group .. so threads are limited.
Thanks in advance.
Sent from my LG-P999 using XDA App

I updated my baseband and now every ROM I've run has almost instant GPS locks. Granted, stock and 2.3.3 based roms like weapon and Tsugi or even Baka get quicker fixes, but to me, you can't give up the added functionality of CM roms like eagles or Phoenix blood. Flashing any other rom shouldn't alter your baseband at all. The new baseband in conjunction with apps like GPS fix and faster fix should add up to almost instant locks on any ROM.
Sent from my LG-P999 using xda premium

lawdawg45238 said:
Now an even more stupid question. I have service through Cincinnati Bell... if I want to update my baseband, do I need to find a special file? Or will the July basebanf thread work? Is that baseband file specific to T-Mobile ?
If I need a specific baseband for Cincinnati Bell, would anybody know where.to go for that information? It seems that the.Cincinnati Bell G2x users are an ultra small group .. so threads are limited.
Thanks in advance.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
Sorry im stumped on this one too. I had a few minutes to do a search and came up with nothing.

Caliyork said:
I updated my baseband and now every ROM I've run has almost instant GPS locks. Granted, stock and 2.3.3 based roms like weapon and Tsugi or even Baka get quicker fixes, but to me, you can't give up the added functionality of CM roms like eagles or Phoenix blood. Flashing any other rom shouldn't alter your baseband at all. The new baseband in conjunction with apps like GPS fix and faster fix should add up to almost instant locks on any ROM.
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
Thanks. Ive actually ran those mentioned roms and gps fixes (when I was on old baseband) for me personally they had too many bugs in the features I used most. Great roms nonetheless, just lacked in areas I needed. Weapon s works perfect for me. I understand roms do not change baseband, I was just curious as to if it affected the gps functionalityThanks again for your suggestion s

Well I suppose that is why we have a recovery Nvflash.. I'm gonna give it a shot and see what happens.
I'll let you know and then we'll have the answer to whether basebands are carrier specific.
I would sure love to have GPS locks... on average it takes me over 10 minutes to get a lock. GPS status shows that I see and am using 5 or 6 satellites .. but when I open maps... it just takes forever to get a lock.
Lets see what happens ........
Sent from my LG-P999 using XDA App

txr_maxx said:
And also, are you having any problems with usb not mounting extrl sd to computer?
Click to expand...
Click to collapse
Stock and CM7 based roms mount the internal and SD card differently. You will experience problems if you install applications to your SD card on one type of rom and move to another. Changing the mount point manually (editing vold.fstab) will fix some of the problems (ie. your programs will launch properly) but will disable USB mass storage as the rom will try to mount the wrong (virtual/)directory to the USB path.
This is just from my own experience going between EaglesBlood(CM7) and Weapon(Stock). I'm not an expert at this but I tried five or six different changed to the vold.fstab and couldn't get everything just right after switching from EB to WG2x.
Anyways, I wouldn't be surprised if there is a way to make the current structure of your internal/external storage work with a new structure, and have USB mass storage functionality. I just haven't found it.

lawdawg45238 said:
Well I suppose that is why we have a recovery Nvflash.. I'm gonna give it a shot and see what happens.
I'll let you know and then we'll have the answer to whether basebands are carrier specific.
I would sure love to have GPS locks... on average it takes me over 10 minutes to get a lock. GPS status shows that I see and am using 5 or 6 satellites .. but when I open maps... it just takes forever to get a lock.
Lets see what happens ........
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
Very brave! I would have done it in your position too. Instant Gps locks was a must for me. Looking forward to the update. I'll be praying for a good turn out

Flashed following instructions ... it appears the basebannd was not cell provider specific. Or, if it is, entering the apn information straightened it out. I have the July 15th baseband and my phone still works.
However, it makes no difference in my GPS locks. They are still slow. Maybe I will edit the GPS configuration file as mentioned in a couple other threads.. and see if that coupled with the new baseband will improve it.
If you care at all, I will post an update.
Sent from my LG-P999 using XDA App

lawdawg45238 said:
Flashed following instructions ... it appears the basebannd was not cell provider specific. Or, if it is, entering the apn information straightened it out. I have the July 15th baseband and my phone still works.
However, it makes no difference in my GPS locks. They are still slow. Maybe I will edit the GPS configuration file as mentioned in a couple other threads.. and see if that coupled with the new baseband will improve it.
If you care at all, I will post an update.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
Absolutely I'm always open to learning. Thanks for your update. Have you tried gps running stock? Immediately after updating baseband, our did your just reflash weapon immediately to test run gps?

Did.not test run ... immediately reflashed...
However, in the GPSconfig file I disabled the wifi wiper (very bottom of file, change value from 1 to 0) and I had instant GPS locks.!!!
I mean instant.... less than 5 seconds. May be a fluke so I'm gonna drive around and periodically open maps to see how long it takes to lock in.
Sent from my LG-P999 using XDA App

Absolutely made a huge improvement. Once I made that change to the gpsconfig file, I have had GPS locks in less than 1 minute.
Sent from my LG-P999 using XDA App

No GPS fix, no matter what I try.. Please help!

Hi,
i hope someone can help me.. I have some serious problems getting GPS to work. I've tried now almost all gingerbread roms and it's always the same. I get no fix or only after a really long time (15 minutes plus, standing still) I know that my GPS SHOULD work, because it did on froyo (even very fast).
Now.. Before you say anything (which I hope you will nonetheless of course) I want to tell you what my current situation is and what I've tried.
Right now I'm on the latest Hercolubus rom with the g3mod oc kernel. Very nice by the way and many thanks to hercolubus and especially marcellusb for their hard work.
I have already tried modifying the gps.conf and secgps.conf files as stated in some thread here. No luck. I checked permissions and they're set to rw-r--r--. I also checked that the ntp server is set properly (in my case to de. I also tried with europe). I've rebooted several times, deactivated and activated gps and loaded the agps data with gps status, fixed permissions and still no luck. I have no idea what else I should try but maybe some of you guys have.
So gps status shows max 4 satellites (yellow) after 5 minutes but none of them are fixed.
Oh and... yes I am trying this outdoors. I run a lot and would really like to use sports tracker and the like..
So if you have any suggestion, please reply and let me know!

Just stick to froyo ROM's for now or flash CM7 and then flash Venkat Kamesh's update zips from his CM7 fixing thread
Sent from home...

Flash a different Rom maybe
Sent from my HTC Velocity 4G using xda app-developers app

Try a stock rom if it dosent work in stock its pretty much a hardware issue. meaning- "you are screwed"

[Q] which ROM doesn't have GPS issues?

Good morning guys,
I've tried every 'fix' under the sun to make my GPS work 'better' (takes 5 minutes to lock my loc), but to no avail.
(I'm on Scott's amazing CM10 JB rom)
Is every JB rom having these issues? Would it be better to just goto ICS?
I travel for work, so Maps is my best friend lol
Thanks in advance,
Sent from my SGH-I997 using xda app-developers app

Scotts latest CM10 initial locked for me in 1 minute 24 seconds.
So, GPS isn't broken across the board. Sometimes there are issues, and sometimes it works fine, but by and large, the issues are local to the individual user.
If GPS is that important, I would suggest that you go back to stock and work your way up. Or just stick with stock.

Understand a solution is important, however not a good idea to create duplicate threads.
http://forum.xda-developers.com/showthread.php?t=1902360

I love the work scott has done, and i realize it isn't across the board. It just stinks that I can't use his masterpiece as a daily driver
Sent from my SGH-I997 using xda app-developers app

use cm9. every jb rom on this phone has issues with agps. weird thing is it is running but not helping to find sats. with gps.conf mods even the "use ref loc" feature seems to work which is network triangulation to help it figure out a rough location for a starting point but the phone still seems to use the standalone gps to find sats.... i tried logging it but nothing really gave me a clue to the actual problem. the gps isn't broken but it doesn't work so well for most of us without agps working to it's full potential.

It works well in ICS. Currently running cm and GPS locks in less than a minute.
In jb it would take 20+ minutes and sometimes say I was a mile away.

GPS has always been bad as far as I'm concerned. I've actually had better luck with the JB roms from late August onward than I have with Froyo or Gingerbread. Have you actually been able to rely on GPS for directions with this phone? I always end up having to ask at a gas station!

brian Marshall said:
It works well in ICS. Currently running cm and GPS locks in less than a minute.
In jb it would take 20+ minutes and sometimes say I was a mile away.
Click to expand...
Click to collapse
Turn off Google location. It might be nice to have Google now but its the worst for navigation. You need real GPS location for maps. Problem is that with jb agps doesn't work correctly so the GPS lock takes forever, leave GPS on with the screen on for another 15 minutes after the first loc for the ephemeris data to download. that should last a few days before you have to do it again.
ICS on the other hand has absolutely impeccable GPS performance for me. Much better than what came from Samsung on my phone.

Cypher rom
I used Cypher rom, and it has great GPS lock.

atrix4nag said:
I used Cypher rom, and it has great GPS lock.
Click to expand...
Click to collapse
first of all, i appreciate that GPS works fine for some people -- why are you reading this thread then?
i'm not even going to list everything i've done to troubleshoot, but before you say 'people posting things and not checking it out themselves' i can tell you that i have tried EVERYTHING, spent hours working on the GPS issue with my phone and come to the conclusion that JB does not have proper GPS on SOME infuse phones, whether it be by region or some latent hardware defect that the ICS or GB roms compensate for, my GPS dosen't lock. i've been through like 20 gps.conf files, read about every setting in the file and tried every variation thereof, gone back to GB, gone to ICS, back to JB, multiple times, testing the result, my phone locks in 5 seconds in ICS or GB, not in JB. had same results in cm10, cypher, remICS, th3bills aokp, his miui, etc...
if my hardware was bad, i wouldnt lock in 5 seconds in GB.
one of my pet peeves is everytime you ask a question in a forum being told you're in the wrong thread when it would have taken less time to provide a helpful answer. posts telling people to move to another forum are also noise, and then further posts telling people they didn't try hard enough, or 'mine works so you're wrong' are also just noise, and not helpful to anyone. the other pet peeve is being told, after spending hours working on an issue, to stop whining because it's being worked on, when you were just trying to help in the first place. or when you read the first sentence of my post and tell me to do something i clearly stated i had already tried in my post.
nobody is whining, we just use infuse phones, and like our GPS to work.
also to be clear this isnt really directed at atrix4nag in a negative way, i just happened to reply to his message.

Stable ICS

Is there a stable ICS out for T959v? Stable as in GPS and wifi calling for t mobile is functional.

knicks791 said:
Is there a stable ICS out for T959v? Stable as in GPS and wifi calling for t mobile is functional.
Click to expand...
Click to collapse
lol no.

I wouldn't consider WiFi calling a factor in a roms "stableness". Its more of a feature. Cm9 is stable and GPS does work

Yeah forget about wifi calling. I think cna 2.0 is great. Cm9 release 8 and well for as early as it was released beam is fairly stable.
Sent from my SGH-T959V using Tapatalk 2

ICS AOKP is stable.....

Stable as in normal human definition, yes. Stable as in Wifi calling, no.

Wifi hotspot?
Theraze said:
Stable as in normal human definition, yes. Stable as in Wifi calling, no.
Click to expand...
Click to collapse
How about stable as in wifi hotspot? I don't use it often, but when I do I need it to work well (business). Works fine on my Vibrant, but I also have SGS4G that I'd like to see if I can get better signals on cell (especially), gps and wifi. I had been sticking with GB ROMs since they seemed the best for GPS/wifi, but would like to move to ICS if possible.

The ICS hotspot has worked basically always worked fine unless you screw with services. My wife used AOKP when we were out of town a few weeks ago. I used Barnacle and Wifi tethering for root users while on JB.
Both ICS and JB worked fine for tethering.

Theraze said:
The ICS hotspot has worked basically always worked fine unless you screw with services. My wife used AOKP when we were out of town a few weeks ago. I used Barnacle and Wifi tethering for root users while on JB.
Both ICS and JB worked fine for tethering.
Click to expand...
Click to collapse
Good. Is there a "best" for GPS? Seems most JB have issues and several ICS as well from what I've read so far.

JB doesn't have GPS yet. That's its issue, but airfluip1 thinks he might have some ideas on how to fix it. Hopefully he'll get it working, or Erik will, or someone else maybe. But for now, skip JB if you need GPS.
ICS has 3 different options for GPS, and it's not always apparent which is better.
1) Assisted GPS. This requires having a build.prop file that tells your phone how to use GPS for this. Most of our ROMs want to do this, but end up in number 3 instead. There are directions on how to fix this if you aren't using Ultragen, or just use Ultragen which comes with this properly configured from the start. First connection to GPS may take 15-30 minutes, but it should be much faster after that.
2) Non-assisted GPS. This comes from flashing YAGF. It disables the assisted GPS and just uses the satellites fresh every time. This CAN be much faster, but won't work well in clouded/wooded/indoor areas.
3) Bad GPS. This is when 1 or 2 fail, generally number 1. The phone is told to use AGPS but it's disabled in the build.prop, or any of a wide variety of other issues. GPS will work... sometimes... but it's highly irregular.
Best option? Start with Ultragen (remember... 1.0.1, not 1.0, which had several major issues) and see if the AGPS is good for you. If you don't like it, flash YAGF and go to unassisted. Decide it's worse and hate it? Wipe the ROM (to get out the modified system files) and reflash Ultragen.
Or start modifying your own files, but be careful that your phone boots up. Don't use Microsoft Word or Notepad or Wordpad or any of those tools. Use a proper hex or *nix editor.

Theraze said:
JB doesn't have GPS yet. That's its issue, but airfluip1 thinks he might have some ideas on how to fix it. Hopefully he'll get it working, or Erik will, or someone else maybe. But for now, skip JB if you need GPS.
ICS has 3 different options for GPS, and it's not always apparent which is better.
1) Assisted GPS. This requires having a build.prop file that tells your phone how to use GPS for this. Most of our ROMs want to do this, but end up in number 3 instead. There are directions on how to fix this if you aren't using Ultragen, or just use Ultragen which comes with this properly configured from the start. First connection to GPS may take 15-30 minutes, but it should be much faster after that.
2) Non-assisted GPS. This comes from flashing YAGF. It disables the assisted GPS and just uses the satellites fresh every time. This CAN be much faster, but won't work well in clouded/wooded/indoor areas.
3) Bad GPS. This is when 1 or 2 fail, generally number 1. The phone is told to use AGPS but it's disabled in the build.prop, or any of a wide variety of other issues. GPS will work... sometimes... but it's highly irregular.
Best option? Start with Ultragen (remember... 1.0.1, not 1.0, which had several major issues) and see if the AGPS is good for you. If you don't like it, flash YAGF and go to unassisted. Decide it's worse and hate it? Wipe the ROM (to get out the modified system files) and reflash Ultragen.
Or start modifying your own files, but be careful that your phone boots up. Don't use Microsoft Word or Notepad or Wordpad or any of those tools. Use a proper hex or *nix editor.
Click to expand...
Click to collapse
Just a suggestion, but the Pimp My Rom application https://play.google.com/store/apps/...sMSwxLDYsImNvbS5hbmRyb2d1aWRlLnBpbXBteXJvbSJd under GPS Tweaks will download the proper GPS files for location, or alternatively, you can install the GPS Status and Toolbox App https://play.google.com/store/apps/...wsMSwxLDEsImNvbS5lY2xpcHNpbS5ncHNzdGF0dXMyIl0 which you can set to download the newest AGPS File when you open it.
I am using AOKP ICS and have no issue with GPS. Was getting like 120 sec TTL for like 12 Satellites according to GPS Tools, which is not terribly life affecting for me.

Which... is irrelevant if your build.prop doesn't use those files. As I said. You can tell GPS Status to update every hour, but if the phone isn't set to use them, they're helping you as much as throwing the phone up 20 feet into the air (without twisting it). Slightly less, since they're using up storage and not getting your phone closer to the satellites.
That being said, the TopNTP app did have GPS modifications as one of its options. Not sure if it does the build.prop flag we need, but...

Wow, it seems the SGS4G may actually be worse than the Vibrant for GPS.

LoL
Sent from my SAMSUNG-SGH-I547 using xda app-developers app

Theraze said:
Which... is irrelevant if your build.prop doesn't use those files. As I said. You can tell GPS Status to update every hour, but if the phone isn't set to use them, they're helping you as much as throwing the phone up 20 feet into the air (without twisting it). Slightly less, since they're using up storage and not getting your phone closer to the satellites.
That being said, the TopNTP app did have GPS modifications as one of its options. Not sure if it does the build.prop flag we need, but...
Click to expand...
Click to collapse
There is gps. It just no worky right! It will take a lil more then downloading a * "NIX" EDITOR and edit build.prop
Sent from my SGH-T959V using Tapatalk 2

hechoen said:
We'll call this one hidden in plain site.
I've been testing a new kernel for Beastmode lately and was trying to get GPS to work. I flashed 3.1 google specific build and still no lockie. So I did what cryptic mentions in the OP and READ the notes. Well that note that I quoted up above is the thing that needs to be done for this phone to make GPS work. After I added that line to the build.prop and rebooted I got a lock in about 10 seconds indoors to an accuracy of 6 meters. Not bad for this phone at all.
Most of are ICS ROMs use CM as a base. So after going through and looking at most of their props NONE of them have that line. I don't know how it's escaped notice as long as it has. I've only tested it on CM9 8-29 build with Beastmodes yet to be released kernel. I doubt that it matters though. Flash the zip, add that line, reboot and you should be good to go.
So thanks to cryptic for this fix and one of the most detailed OP's I've ever had the pleasure of reading. And too erikmm(aka Beastmode) for the incentive to actually look into this.
Click to expand...
Click to collapse
As I said...

Theraze said:
Best option? Start with Ultragen (remember... 1.0.1, not 1.0, which had several major issues) and see if the AGPS is good for you. If you don't like it, flash YAGF and go to unassisted. Decide it's worse and hate it? Wipe the ROM (to get out the modified system files) and reflash Ultragen.
Click to expand...
Click to collapse
Thanks ! Where can I download YAGF for a T959v ? Is Ultragen v1.8 also good or only 1.0.1 ?

Remember that you have to flash something that actually works on our phone, unless you're making your own franken-build.
Ultragen 1.01 is available in post 4 of the Ultragen thread. There is no Ultragen 1.8... at least, not here on XDA for our phone.
Regarding the GPS, it's the same YAGF2 from the Vibrant forums... it's just a generic-ish fix that may or may not placebo you.

Unfortunately, I don't understand the technical jargon regarding all the GPS options...maybe I'm better off not knowing.
However, I'm running CM9 with Proton kernel & LB6 modem and everything works (except, of course, for wi-fi calling).
No problems whatsoever with GPS. Battery drains a little fast but I have a zillion chargers laying around the house,
office, & car...no big deal.