I never had any problems with my T-Mobile Note 4 until I upgraded to Lollipop and GPS stopped working- it never locks position and keeps searching for hours with no result. I tried flashing with Odin and Kies. I tried flashing with Sim and SD cards removed. I tried all the recommended GPS fixes. I tried all the available Lollipop custom ROMs and kernels- all to no avail. Once I flash NK4, I have absolutely no GPS issues, on stock or on custom ROMs. I called T-Mobile and Samsung and was told they never heard of this problem- they recommended sending the phone for service. I would greatly appreciate any suggestions you guys have.
medlord said:
I never had any problems with my T-Mobile Note 4 until I upgraded to Lollipop and GPS stopped working- it never locks position and keeps searching for hours with no result. I tried flashing with Odin and Kies. I tried flashing with Sim and SD cards removed. I tried all the recommended GPS fixes. I tried all the available Lollipop custom ROMs and kernels- all to no avail. Once I flash NK4, I have absolutely no GPS issues, on stock or on custom ROMs. I called T-Mobile and Samsung and was told they never heard of this problem- they recommended sending the phone for service. I would greatly appreciate any suggestions you guys have.
Click to expand...
Click to collapse
Try using other Maps. Even apps that locate GPS satellites...sometimes those apps knock sense into the GPS.
I have noticed something similar. I use a golf GPS rangefinder app and now from time to time the GPS freezes for a couple minutes and doesn't update. Same with Google maps. Then it does. Very annoying. Never happened with stock kk. I'm using Dynamic Pop 6.0. Any suggestions? Totally clean install - I wiped everything several times including internal sdcard.
Sent from my SM-N910T using XDA Free mobile app
Same issue here. It's really frustrating when you're driving around a new city and Google Maps is bouncing all over the place or just staying in the same place for several minutes even though you're driving. Would really love a fix.
Related
Ok...so after updating to Froyo my GPS is not working. Not only that, my phone can't seem to find my approximate location even after enabling "Use Wireless networks". I used GPS Status app from the market and I confirmed the phone was seeing several satellites, but it was getting no lock. I had no problem with my GPS with 2.1 aside from losing my location occasionally when I drive through the downtown.
Is anyone else experiencing this issue? I'm running my phone on Rogers network, unlocked and rooted.
Yeria said:
Ok...so after updating to Froyo my GPS is not working. Not only that, my phone can't seem to find my approximate location even after enabling "Use Wireless networks". I used GPS Status app from the market and I confirmed the phone was seeing several satellites, but it was getting no lock. I had no problem with my GPS with 2.1 aside from losing my location occasionally when I drive through the downtown.
Is anyone else experiencing this issue? I'm running my phone on Rogers network, unlocked and rooted.
Click to expand...
Click to collapse
You didn't say what version of Froyo you are running but I'd change my modem file and use one of the alternate ones that DocRambone has. There's a thread on this but I find the ZSJPE (Hong Kong) version to be superb (and our company develops an app for the phone that uses GPS for golfers) - very quick, very accurate...
Oh I'm using JK4 from Bell..and kernel version 2.6.32.9....
Edit: Oh and I have also done factory reset/cache wipe...and it's still doing that...I want to see if I can fix this without changing the modem file or anything like that...
I'm having the exact same problem since upgrading to the official 2.2 release from 2.1
EDIT: Bell Galaxy S Vibrant, Unlocked and running on Rogers. Not rooted.
sw411 said:
I'm having the exact same problem since upgrading to the official 2.2 release from 2.1
EDIT: Bell Galaxy S Vibrant, Unlocked and running on Rogers. Not rooted.
Click to expand...
Click to collapse
Ok...so I'm a bit relieved to know I'm not the only one out there...From the things I've been reading it doesn't seem to affect phones running on Bell networks..but shouldn't GPS be not affected regardless of the network you're running on? I don't see why it's refusing to get a lock...
I can't believe no one else is having this problem, maybe we're the only ones unlocking??
I was also having this problem. I updated to bell froyo using kies, and am unlocked using rogers. I loaded gps test, set it so it wouldn't shut off the screen, and let it run for about 30 min in a window. Eventually it got solid lock on a couple sats and it now seems a lot snappier to get a lock.
sw411 said:
I can't believe no one else is having this problem, maybe we're the only ones unlocking??
Click to expand...
Click to collapse
Ok, good news! At least for me anyway... I decided to try keeping my GPS on and let my phone to try and find my location..however long it was going to take. I don't think it took me 30 minutes but it took me good 10 minutes before my GPS found my location. I think the problem was because I'm having trouble getting location information based on my wireless network and updating to Froyo and doing a factory reset must have deleted my satellite schedule. Right now I'm just so glad to find out my GPS isn't broken! :-D You should try the same thing I did.
Sent from my GT-I9000M using XDA App
@sw411 Oh and you should try and read this forum about wireless network based location service.
http://forum.xda-developers.com/showthread.php?t=845152
Sent from my GT-I9000M using XDA App
Thanks Yeria, that sounds like the problem we're having.
I do find that if I give it enough time, It will get a pure GPS lock, but I'm not getting any aGPS (the network based)
That thread you link sounds like the solution, but unfortunately I can't seem to access the file they tell you to modify
I too have GPS problems right after upgrading to official froyo. And it kept getting worse when i tried custom ROM. I tried factory resetting and format all my sd card, cache wipe etc hoping that it will return to normal like when i was in 2.1 elcair but to no avail. I don't know if some bad code was left behind when i did the official upgrade through kies. All i can say is it was working fine when i was at 2.1 then suddenly went bad after 2.2.
By the way, my problem is my GPS lock kept of disconnecting every now and then thus rendering my GPS useless as it kept on displaying my location as "off road" even though i'm on a clear highway with clear and bright skies!
ahh, if I root the phone I can get to
/dbdata/databases/com.google.android.gsf/gservices.db
unfortunately, this phone doesn't have sqlite3 installed!! I need to try and find that
EDIT: Found a copy of sqlite3 and was able to push it to the phone. edited the db as people suggested! I'll have to test it on Monday
mikextr23 said:
I too have GPS problems right after upgrading to official froyo. And it kept getting worse when i tried custom ROM. I tried factory resetting and format all my sd card, cache wipe etc hoping that it will return to normal like when i was in 2.1 elcair but to no avail. I don't know if some bad code was left behind when i did the official upgrade through kies. All i can say is it was working fine when i was at 2.1 then suddenly went bad after 2.2.
By the way, my problem is my GPS lock kept of disconnecting every now and then thus rendering my GPS useless as it kept on displaying my location as "off road" even though i'm on a clear highway with clear and bright skies!
Click to expand...
Click to collapse
Based on what I have found so far, and assuming your aGPS or any other wireless based assistance features are not functioning properly, doing a reset and cache clear will not help with your GPS at all. I have read that the phone will try to download the satellite schedules directly from GPS satellites if you're using purely satellite based GPS option. It'll be slow so it will take longer to get a lock and that's why phone will use other means to shorten the lock time. Once the schedule is downloaded, they said there shouldn't be any problem until the schedule expires, at which point you will have to download the schedule again.
I think the reason you're losing lock frequently might be because your phone doesn't have a clear view of the sky..? I used my phone GPS to drive around Toronto, Vaughan and Mississauga last night for at least 4+ hours, and I did not have any problem.
So, I tested today after updating the db.... no agps still..
Anyone else still.having issues with agps?
GPS works, just no agps since 2.2
Sent from my GT-I9000M using XDA App
mikextr23 said:
By the way, my problem is my GPS lock kept of disconnecting every now and then thus rendering my GPS useless as it kept on displaying my location as "off road" even though i'm on a clear highway with clear and bright skies!
Click to expand...
Click to collapse
This is why I unfortunately have to use an old Tom Tom GPS!
i'm having this problem too. i finally got it picking up quickly on 2.1 but once i updated i haven't been able to ever get a solid lock. has anyone found a solution yet??
Now that my wireless location service is kind of working I thought aGPS should also naturally work but I guess not... My GPS takes a pretty long time to start up and I haven't found any fix for this..
It's funny because I didn't really have any problem with my GPS with 2.1 but now I do with 2.2...
Sent from my GT-I9000M using XDA App
Hello, I've tried everything to make it work, I installed the GPS apps and everything, even flashed two different roms and still not working.. Is it a kitkat problem?
Ashk91 said:
Hello, I've tried everything to make it work, I installed the GPS apps and everything, even flashed two different roms and still not working.. Is it a kitkat problem?
Click to expand...
Click to collapse
I have the same problem I cant even get the phone to search for a GPS signal. my bootloader is unlocked and rooted. Im thinking of reverting back to stock to see if this fixes anything
disaster999 said:
I have the same problem I cant even get the phone to search for a GPS signal. my bootloader is unlocked and rooted. Im thinking of reverting back to stock to see if this fixes anything
Click to expand...
Click to collapse
I reverted to stock and it didn't work as well, tell me if it helps you please
I tried restarting my phone and that got the GPS to turn on. But it wouldnt turn off itself whenever you exit an app like Maps or a GPS status app. The icon will continue to flash on the tool bar for a while and eventually turn of by itself. If you try to activate the GPS again you need to restart your phone.
Im not sure if this is a 4.4.2 problem or a unlocked/rooted problem. Ill try to revert my phone back to stock tonight
disaster999 said:
I tried restarting my phone and that got the GPS to turn on. But it wouldnt turn off itself whenever you exit an app like Maps or a GPS status app. The icon will continue to flash on the tool bar for a while and eventually turn of by itself. If you try to activate the GPS again you need to restart your phone.
Im not sure if this is a 4.4.2 problem or a unlocked/rooted problem. Ill try to revert my phone back to stock tonight
Click to expand...
Click to collapse
my gps doesnt have that problem..download an app called gps status, it shows how many satellites are in the field, then click on agps reset, then download then reboot..some people report this method fixes their gps, but doesnt fix mine ..keep me informed
I'm having the same issue lately after sending my phone to service to fix camera... My gps doesn't want to fix satellites. I tried reverting to stock (keeping s-off and unlocked bootloader) installed a guru reset rom and applied otas but no way till now. Last chance will be flashing a ruu, didn't have time yet but I'll do it in a couple days. I will keep you guys informed, if anyone succeeds in fixing it, please post how you did it!
Gps status sometimes sees satellites but signal is too low and never grows. I even tried tweaking gps.conf file a lot but no way...
Sent from my HTC One using XDA Free mobile app
Update: i tried with a RUU zip with android 4.1.2 and applied otas till 4.3 (that was the last one i received) on one of this upgrades camera was unable to launch but on the next one it came back. And no way to get gps working with any one of these upgrades. Gps status sees a number of satellites (weird thing, after every new flash glonass satellites appear with some sort of signal -- snr <= 1.18 --, until i reset gps data and download new agps files, then they never come back until i flash some other version/rom) but never gets an acceptable signal enough to lock..
Really don't know what else to try, i think i will send back to service..
Sent from my HTC One using XDA Free mobile app
karma0321 said:
Update: i tried with a RUU zip with android 4.1.2 and applied otas till 4.3 (that was the last one i received) on one of this upgrades camera was unable to launch but on the next one it came back. And no way to get gps working with any one of these upgrades. Gps status sees a number of satellites (weird thing, after every new flash glonass satellites appear with some sort of signal -- snr <= 1.18 --, until i reset gps data and download new agps files, then they never come back until i flash some other version/rom) but never gets an acceptable signal enough to lock..
Really don't know what else to try, i think i will send back to service..
Sent from my HTC One using XDA Free mobile app
Click to expand...
Click to collapse
Any update on this?
Im having issues with my GPS as well. I use the ViperOne ROM (latest) with the ElementalX firmware. When I try to use Google Maps the following will happen:
1) GPS will find my location ok and calculate a route ok.
2) I start driving and the blue arrow in google maps does not move OR it thinks im on a different road than I actually am. When it thinks im on a different road the arrow may or may not move...more often than not it just stays still.
3) I have driven for over 10min hoping it will eventually start to work but it doesn't.
4) The only way I have got it to work is to pull over, stop nav, close maps and try again. Generally on the 2nd or 3rd try it will start to work correctly.
My GPS was working fine before I rooted and installed a custom ROM. I will try wiping and flashing ViperOne tonight and use the stock firmware instead of ElementalX. Will report back to see if this works.
froggy88 said:
Any update on this?
Im having issues with my GPS as well. I use the ViperOne ROM (latest) with the ElementalX firmware. When I try to use Google Maps the following will happen:
1) GPS will find my location ok and calculate a route ok.
2) I start driving and the blue arrow in google maps does not move OR it thinks im on a different road than I actually am. When it thinks im on a different road the arrow may or may not move...more often than not it just stays still.
3) I have driven for over 10min hoping it will eventually start to work but it doesn't.
4) The only way I have got it to work is to pull over, stop nav, close maps and try again. Generally on the 2nd or 3rd try it will start to work correctly.
My GPS was working fine before I rooted and installed a custom ROM. I will try wiping and flashing ViperOne tonight and use the stock firmware instead of ElementalX. Will report back to see if this works.
Click to expand...
Click to collapse
So the 2nd post in this thread has solved my issue...for now.
froggy88 said:
So the 2nd post in this thread has solved my issue...for now.
Click to expand...
Click to collapse
Nop no good still. If anyone has a fix for this it would be appreciated!!!
Same issues here after sending in for repair. GPS sees about 18-20 satellites per the gps status apps, but only fixes on 3-4 with weak signals. Tried a few gps.conf tweaks which help but seems that they're just using more of the AGPS data and not actually the GPS chip.
EDIT: Have tried a few fresh wipes and different ROMs, GPE edition, etc. - all the same. This never happened in the past :/
zeezz said:
Same issues here after sending in for repair. GPS sees about 18-20 satellites per the gps status apps, but only fixes on 3-4 with weak signals. Tried a few gps.conf tweaks which help but seems that they're just using more of the AGPS data and not actually the GPS chip.
EDIT: Have tried a few fresh wipes and different ROMs, GPE edition, etc. - all the same. This never happened in the past :/
Click to expand...
Click to collapse
I have tried updating the firmware to the latest version and different ROMS but that did not help. However I discovered that in google maps if I select the walk mode my navigation will work! Unfortunately thats no help as I need the car mode to work.
I installed GPS Status and it locks on to plenty of satellites so im not sure why Google Maps (or any nav apps) will not work.
I came to the same conclusion as you. It seems like the phone is using AGPS and not the GPS data.
froggy88 said:
I have tried updating the firmware to the latest version and different ROMS but that did not help. However I discovered that in google maps if I select the walk mode my navigation will work! Unfortunately thats no help as I need the car mode to work.
I installed GPS Status and it locks on to plenty of satellites so im not sure why Google Maps (or any nav apps) will not work.
I came to the same conclusion as you. It seems like the phone is using AGPS and not the GPS data.
Click to expand...
Click to collapse
I did a little research the other day ...I can't find the link but I remember most of it..
Apparently one of the Google+ and/or playstore silent background updates mess up gps on google maps for HTC One.
Using the 'GPS essentials' and 'Gps status' apps you can actually lock on to all the gps satellites fine.
Also using navigation,like you did...also locks on fine.
Its the standard google maps over view and a few other apps that use it (like my bus map app) that are affected.
One work around is apparently (didn't work for me though) going into the google settings app and tinkering with Google+ settings. turning it off or clearing it or something.
This is a software issue. I'm on untampered pure stock.
So I have resolved the GPS issue on my device. I tried a whole bunch of things so im not totally sure what fixed it. I:
Removed HTC Backup using root uninstaller
Using Faster GPS set my location and added the TRUE flag to AGPS_Enable
Using GPSFix I waited until it locked onto a satellite.
Rebooted my phone then tested with GPS Test. My phone locked onto about 8 satellites.
Tried Google maps navigation and it worked.
So far its been 3 days, 2 reboots and counting. Hopefully something similar works for you.
If you're rooted editing the GPS.conf file fixes it perfectly. The default setting are just totally crap
froggy88 said:
So I have resolved the GPS issue on my device. I tried a whole bunch of things so im not totally sure what fixed it. I:
Removed HTC Backup using root uninstaller
Using Faster GPS set my location and added the TRUE flag to AGPS_Enable
Using GPSFix I waited until it locked onto a satellite.
Rebooted my phone then tested with GPS Test. My phone locked onto about 8 satellites.
Tried Google maps navigation and it worked.
So far its been 3 days, 2 reboots and counting. Hopefully something similar works for you.
Click to expand...
Click to collapse
And GPS has stopped working again. What a pain.
Go here. This is how I fixed my HTC one. It works on all android phones. The default GPS.conf file is rubbish
http://forum.xda-developers.com/showthread.php?t=953630
I tried the gps.conf file in that link. It seemed to be slightly better at first, locking onto 3 satellites with yellow SNR in GPS Test. But then I tried resetting and downloading the AGPS data with GPS Status and after it doesn't even detect satellites anymore.
Question to the posters in the thread. Have any of you dropped your phone before this started happening? I've gone through 2 M7s and the GPS stopped working properly after taking a nasty spill and have been unsuccessful in remedying the problem.
shalpp said:
Question to the posters in the thread. Have any of you dropped your phone before this started happening? I've gone through 2 M7s and the GPS stopped working properly after taking a nasty spill and have been unsuccessful in remedying the problem.
Click to expand...
Click to collapse
I have dropped my phone several times however it is in a protective case. My issue started out of the blue: one day it was working just fine, the next it was highly erratic...and has been since.
Having serious troubles with the GPS (I think ever since I upgraded to KitKat). I've tried a couple of ROMs and went back to the stock rooted one found here. I will get a fix at times but it will be lost within a minute or so and makes things very frustrating.
What's the best way to troubleshoot this? I've tried Chartcross GPS test, but it doesn't fix anything. Any help would be really appreciated.
Anybody?
scopefield said:
Having serious troubles with the GPS (I think ever since I upgraded to KitKat). I've tried a couple of ROMs and went back to the stock rooted one found here. I will get a fix at times but it will be lost within a minute or so and makes things very frustrating.
What's the best way to troubleshoot this? I've tried Chartcross GPS test, but it doesn't fix anything. Any help would be really appreciated.
Click to expand...
Click to collapse
If you google your question you will find loads of the same exact issue. I am also having the same exact issue, it only kind of works on stock rom with no root. But even then not for very long. Samsung decided to put garbage gps radio's in our phones so gps is pretty much non existent on the Note 3. I'm on my 4th phone from ATT. Not only does the GPS suck, the connection losses are pretty unbearable at times and have actually costed me customers. And to think I traded my S5 for this POS....really frustrating.
TLDR: Someone at Samsung needs punched in the face, twice.
Djspinister said:
If you google your question you will find loads of the same exact issue. I am also having the same exact issue, it only kind of works on stock rom with no root. But even then not for very long. Samsung decided to put garbage gps radio's in our phones so gps is pretty much non existent on the Note 3. I'm on my 4th phone from ATT. Not only does the GPS suck, the connection losses are pretty unbearable at times and have actually costed me customers. And to think I traded my S5 for this POS....really frustrating.
TLDR: Someone at Samsung needs punched in the face, twice.
Click to expand...
Click to collapse
Interesting. Mine was working perfectly prior to this whole kitkat ordeal. If I Odin back to stick and reflash to 4.4.2, do you think it will remedy the issue?
That's what i did because I need gps daily, though it still has major issues, I'm literally trying to sell it, my s5 never lost lock, even in my pocket.
Djspinister said:
That's what i did because I need gps daily, though it still has major issues, I'm literally trying to sell it, my s5 never lost lock, even in my pocket.
Click to expand...
Click to collapse
Do you think there's any use in ODIN'ng back to stock and then trying the custom 4.4.2 ROMs or is it not going to work?
So I have the T-Mobile variant of the LG G4. I had it unlocked straight from the carrier a while ago and all seemed well. Recently I noticed a huge amount of battery drain and 4G LTE usage from T-Mobile's pre-installed apps--mainly com.tmobile.pr or something which is the "My Account" app (imagine being at 60% left with 27% of the drain having been an app and only 9% the screen. Yeah, it was that bad)
This I obviously found unacceptable, so I went ahead to try and uninstall the bloatware. Lo, much to my dismay, Tmobile has locked it down so you can't uninstall the bloatware, and you can only disable it. This alone irked me enough that I wasn't satisfied with just a disabling. I knew I wouldn't rest until I had obliterated it.
I've had plenty of android phones over the years and done my fair share of rooting and flashing ROMs and the like, but I hadn't touched that aspect of my G4 because I wanted a dependable device for school and I didn't want to mess around with it. I knew I'd have to root it to get rid of the tmobile bloatware so I went and did that using the Low effort root method (http://forum.xda-developers.com/g4/orig-development/root-tmo-vzw-intl-variants-soon-root-lg-t3164765). When this was done a lot of my background processes started to continuously crash. I decided to go ahead and put TWRP as the custom recovery and just go ahead and get some dependable 6.0 ROM, and I found a couple of them.
When I flashed the first ROM, the play store services were crashing so I found the google apps package for marshmallow and flashed that too. It seemed to fix the issue. Yet when I would click on my School's WiFi at the setup (which is WPA2 Enterprise) it would crash and say "Unfortunately WiFi has stopped working." I thought that perhaps I mucked something up in the flashing of the ROM, or that maybe there was an issue with the ROM in general, so I decided to just flash another ROM entirely (after factory resetting it all the way). Along the same time as this I found a slightly more modified and feature packed version of marshmallow by this lad here (http://forum.xda-developers.com/g4/development/h815-genisys-rom-1-0-classic-v10g-t3192649). I decided to go ahead and use this one since it had a h811 version there, that involved flashing a h815 and then flashing a patch.
The "Unfortunately WiFi stopped working" issue persisted, however. I found this odd. I then noticed that if I click any other network that ISN'T the WPA2 enterprise network my school is working that everything seems to work fine.
I went ahead and factory reset it all the way again in the hopes that would fix it. No luck.
I booted it to safe mode and tried to connect to the WiFi network from there. No luck.
I downloaded a third party WiFi app off cellular and tried to connect from there. No luck.
I can't enter the WiFi's name and try to enter directly because it crashes there too.
I can't "Forget" the network as it's never joined that network before so there's nothing to forget. It does let me enter the advanced options but a direct press causes it to crash.
So throughout ROMs and wipes and safe modes and all, this one issue has persisted, where my phone's WiFi will crash when it tries to connect to my school's WPA2 Enterprise network. I've tried plentiful fixes short of flashing back to a 5.0/5.11 stock (which I'm hesitant to do because I read something about phones bricking after they downgrade from Marshmallow using the .kdz files or something?).
I'd really appreciate any help that y'all can provide. I've read these forums for ages but this will be my first time making an account because I can't find anybody else with the same issue and its proving to be quite a pain.
tl;dr wifi isn't working with only one particular network and no fix I've tried under this sun has worked so far. help will be appreciated pls
Have you tried flashing this rom here --> http://forum.xda-developers.com/tmobile-g4/development/rom-g4-h811-xtreme-rom-v1-0-7-28-15-t3167667
I am using this one here and I have no issues using wifi. I cannot speak for the 6.0 roms because LG has not dropped the sources for the Tmo variant yet.
esjames said:
Have you tried flashing this rom here --> http://forum.xda-developers.com/tmobile-g4/development/rom-g4-h811-xtreme-rom-v1-0-7-28-15-t3167667
I am using this one here and I have no issues using wifi. I cannot speak for the 6.0 roms because LG has not dropped the sources for the Tmo variant yet.
Click to expand...
Click to collapse
I got the brown leather variant from Tmobile and it only says H811 as far as I can tell. Not sure of if its the "n" version or not.
I have not tried that rom but ill be sure to give it a go, hoping it will help solve the issue. I did some additional testing and can confirm the issue lies with all WiFi networks that employ WPA2 Enterprise security.
Will there be any issue with the Rom when downgrading from Android 6.0? I was reading about phone's bricking when trying to downgrade certain versions or bootloaders on the tmobile variants.
I'm pretty sure going back to stock 5.1 will be fine. The Tmo variant hasnt been upgraded to 6.0 yet and the ports don't update the bootstacks. Read here --> http://forum.xda-developers.com/tmobile-g4/development/global-marshmallow-6-0-port-to-h811-t3232760
Update: It seems that any Android 6.0 flash cuts off the ability to connect to Enterprise wireless networks. I went ahead and flashed to the debloated stock rom on the thread you mentioned, but it cut off the ability to record video. As such, I went for the xTreme version that you mentioned, and flashed the camera restores and all.
Everything works fine now as far as I can tell. I also got rid of the Tmobile applications draining the battery and all that. All should be well. Thanks again for the help
Good Afternoon,
having major issues with GPS no finding or locking onto satellites,
tried custom roms, reflashed stock marshmallow and nougat still the same
tried GPS only
Tried AGPS refreshing, Tried FASTER GPS and setting Location to UK.
I believe there is a menu in secret samsung menus but unable to find the code relevant to note 5 to reset all gps data.
Any help guys?
note is a tmobile variant n920t using in UK ( shouldnt matter should it??)
Did you ever find a solution to your issue? My Sprint version just started doing the same thing. There is no rhyme or reason to when it will lock and when it won't or so it seems. For example this morning it fired up fine and I drove to a meeting. I was there for 2 hours and when I came out it wouldn't lock. I tried agps reset and it didn't seem to work. It says it sees like 20 sats. Finally 10 mins into my drive and a few agps resets later it locked. I'm on stock everything nonrooted. No major changes to my phone recently which would have coincided with this.