[Q] GPS Unstable - One (M7) Q&A, Help & Troubleshooting

Hi guys,
Really need some help or advice here with my HTC ONE GPS. For the use of external SD card, the One I have is a J one, the Japanese version of it.
It came with Android 4.1.2 I think, and I am pretty sure the GPS worked fine then. I had my camera replaced by the seller due to focus issues. The seller flashed my phone with a new ROM too trying to fix my camera.
That's when the issue started. My GPS app would lock the satellites fine and fast, but can only hold up for 10 seconds before losing every satellite. Then picks up the signal again, and losing it again in 10 seconds. And the problem stays on. I have tried a few different GPS apps, no luck there. GPS status shows the same thing, it loses everything in 10 seconds and then start over again.
I don't think it’s a hardware issue as it does lock and works for about 10 seconds.
Any thoughts?
Cheers,

anyone
Anyone please help with the issue.
Cheers

stoodup said:
Anyone please help with the issue.
Cheers
Click to expand...
Click to collapse
I also lost GPS functionality, but that was when I tried a 4.3 kernel/ROM by dirty unicorn. I even tried running the official RUU to get back to as stock as possible on the latest ROM, but that hasn't helped. Can see GPS sats but can't lock. I'm going to S-OFF and flash the original ROM and see if that helps. I'll let you know my findings. Have you found anything?

no clue if this is still a thing; but on the older htc devices there was a command you could run from the dialer in a sense rom to reset gps status.
##GPSCLRX#

Related

[Q] Froyo GPS Lock Problem

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

[Q] GPS fix. ##GPSCLRX# not working

I've encountered a problem with my GPS while running AOSP Roms. (In my case MIUI) The problem is that after a while of using the GPS, I'll wake the phone up and the GPS will get my location, but then stop working/updating location.
I've tried flashing the stock Sense ROM, and doing the ##GPSCLRX# trick without success. The method simply doesn't seem to work, or have any reaction whatsoever. I can't get the text box to open where you enter the MSL. Has anyone had any success doing this method? If so, which ROM did you use? Was there any special mojo you had to do?
I've also in desperation tried installing various EVO GPS drivers, with no effect.
Also I tried reformatting my SD card, fresh install. Problem continues. Apparently I'm the only one with this funky problem?
Perhaps THIS can help, it improved my gps a lot. After that i get a fix i a few seconds ;-)
The standard gps.config is based on a generall one that works for all countries. If you follow the fix and edit your gps.config to your contry, the gps fix gets much faster.
jkolner said:
Perhaps THIS can help, it improved my gps a lot. After that i get a fix i a few seconds ;-)
The standard gps.config is based on a generall one that works for all countries. If you follow the fix and edit your gps.config to your contry, the gps fix gets much faster.
Click to expand...
Click to collapse
I did this little trick, and I noticed it changed the way my GPS behaved at first, but I'm afraid it didn't work to solve this problem either. Thanks for the idea though.

[Q] Xperia Z GPS Hardware fault

Hello everyone,
I've had my Xperia Z for around a year now and I have used it consistently with cyanogenmod with no issues regarding GPS. The only time my GPS has failed to work properly, I flashed the stock ROM and then the latest cyanogen build to get it working again.
However this time my GPS will not function whatsoever, I have flashed numerous stock and cyanogen builds to no affect. I have also tried every GPS app I can think of to tweak my GPS settings and try to see if any satellites will show up, however none of these approaches have worked. I have come to the conclusion that the GPS hardware must be faulty. Is there anything else I can do, or is it broke for good?]
Many thanks.
Stephen_wolf said:
Hello everyone,
I've had my Xperia Z for around a year now and I have used it consistently with cyanogenmod with no issues regarding GPS. The only time my GPS has failed to work properly, I flashed the stock ROM and then the latest cyanogen build to get it working again.
However this time my GPS will not function whatsoever, I have flashed numerous stock and cyanogen builds to no affect. I have also tried every GPS app I can think of to tweak my GPS settings and try to see if any satellites will show up, however none of these approaches have worked. I have come to the conclusion that the GPS hardware must be faulty. Is there anything else I can do, or is it broke for good?]
Many thanks.
Click to expand...
Click to collapse
Flash the stock rom, go to service menu - service tests - gps. If it doesn't work relock your bootloader. I hope you backed up your TA Partition, because it would make it easier to sent it to repair...

[Q] HTC one GPS not locking

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.

GPS sensor not working

Hello XDA guys. Your webpage is awesome.
I have a problem witn my Z3C (5833) for a month now and I have tried many things with no success. I hope you can help.
My phone was updated to Lollipop not long ago (May - June to 5.0.2) and in one moment (I cannot tell exactly when) the GPS sensor stopped working. The Wifi and Mobile location work, however the GPS is dead. Phone not unlocked or rooted. Original Stock ROM.
I go to the about phone - Diagnostics and test the GPS.. and it stays as "GPS is starting ... the GPS couldnt be started". When I download GPS test apps, they dont detect a single sattelite. I also tried the *#*#7378423#*#** GPS diagnostics, "purged assistance data", and it keeps on "waiting for location update" eternally
Because of this I wrote to Sony and they answered asking me to do a phone repair from Sony PC Companion. I did the phone repair and the problem was not solved.
Because of this I thought .. hey, maybe Lollipop is the problem. So I unlocked the bootloader and downloaded Emma (Sony recommended flash program for stock ROMs).
Emma downgraded my phone to 4.4.4 (23.0.A.2.93). However I still had the problem.
Next, I enter XDA and downloaded Flash tool. I downloaded one of your stock ROMs: 23.0.1.A.5.77 - Unbranded - Australia (1288-4214) {4.4.4}
I installed it and nothing. Same dead GPS.
So now I have no clue what might be the problem. Maybe the antenna got broken inside? How can I know if its a hardware or software issue?
Any help would be appreciated
Additional data:
Right now I have the 4.4.4 (23.0.A.2.93)
Baseband: 8974-AAAAANAZQ-00005-05
Kernel: 3.4.0-g0961cdf Build [email protected] #1 Tue Aug 19 19:48:36 2014
Thanks
If the issue still exist with different firmware i guess its a hardware failure.
basti2909 said:
If the issue still exist with different firmware i guess its a hardware failure.
Click to expand...
Click to collapse
How do I open the phone?
Thanks
Emi85 said:
How do I open the phone?
Thanks
Click to expand...
Click to collapse
I opened the phone. Now i need to know where is the GPS antenna, anybody know?
In sony it says its near the headphones plug. No more details.
Thanks
Hi,
I have the same issues. It says since about two months. 23-26 sattelites found, but no signal and no fix. On 4.4.4 was OK, since updating nothing anymore.
I went back to Kitkat but still dead.
Anyone managed to get it back without sending it in??
Same problem...no GPS.anyone with a solution??? New motherboard? Soldering a antenna. Someone's got to have a fix for this problem.
Sent from my D5803 using Tapatalk
Same problem and even tried to update to Android 6.0 with Marshmallow and still no GPS. 23-26 sattelites found, but no signal and no fix.
Any updates?
Hello,
I noticed since some time the same problem. I did a quick search on Google, and the problem seems more then usual after one of the official updates by Sony. The problem is discussed on the Sony Xperia Care support forums. All the affected user seems to suffer not from a complete signal outage, but rather from a substantially downgraded performance due to a bad SNR value and poor signal tracking, as can be seen by using the GPS Test app.
Resuming what has been written in the threads, all the following operations seems not to solve the issue:
- factory reset / repair with PC companion
- downgrading to an earlier release
- installing a custom ROM
- returning unit at service
What is annoying is the total disinterest by Sony that seems to ignore the problem, maybe they only want to take time to better understand the problem. If anyone should have news about this please let me know, because the only solution for this issue for now seems to be wating for a solution!
Thank you!
Same problem. Original Kitkat. In May worked excellent. During August I mentioned,it dosn't work. Some photos had changed infos about time and date of creating. On camera disappeared SCENE function in manual mode. When I allowed gps function on camera, gps worked immediately. Unfortunately only once. Camera Blocks gps?
Same problems here...
Hey, same issues here. I think it's just really slow to connect. I've recently sent my phone in for a warranty repair with Vodafone. It came back and was still broken.
Today however... I checked my phone and itw as working again (for about half an hour). Now I'm getting nothing again.
I've tried everything suggested, even down loaded AGPS file etc. But nothing seems to work.
Mega frustrating!!!
the only way for today is replacing motherboard... sony sucks. never again
I just wrote on the sony xperia support forum, somebody talks about a fix they provided for the xperia m series that seems to be affected by the same issue. But for our z series it seems not to be any fix at the moment.
After suceeding the GPS diagnostic test in the settings once, the GPS seems to be fully broken with no tracked satellite at all (before it was at least tracking a few satellites with a very poor SNR, now nothing according to GPS Test app). Repeating the GPS diagnostics now always results in an error. I'll try the warranty return but I'm pretty sure they'll give me a faulty device, as many other here and on the other forum have experienced.
Same problem ... just got the phone days ago.
Any solution ? or do I need to return it ...
I had issues with GPS, could see satellites but no fix on any. after expired warranty I rooted it and used 4 different ROMs, worked on all of them. instant lock on min 6 satellites. I am aware it could be HW issues but this is my experience with this problem.
gnjurac said:
I had issues with GPS, could see satellites but no fix on any. after expired warranty I rooted it and used 4 different ROMs, worked on all of them. instant lock on min 6 satellites. I am aware it could be HW issues but this is my experience with this problem.
Click to expand...
Click to collapse
I'm more and more convinced that this is a SW issue. Sony did something wrong when updating the firmware in August 2015. The fact that the satellites are visible comes in my opinion from the AGPS data, which loads the konwn satellite positions from the Internet. Instead, the problem seems to be the locking of a satellite signal, and it seems that something is disturbing the GPS antenna. If it comes out that this is really the issue, it is very disappointing that Sony didn't do absolutely nothing to solve the issue since last summer.
I'm using CM12.1 nigthlies and since about December/January I have the same problem. So a custom ROM does neither help nor prevent the problem. In addition to that, compass is uncalibrated and I don't get it calibrated again. Really sucks, last year I used the Z3C for lots of outdoor navigation, and suddenly something has happend which makes the device unusable...
I did root with kingroot and changed /etc/system/gps.conf as described in code.google.com/p/android/issues/detail?id=81140#c695
Now my GPS is locking again.
Did not help for me. Currently I don't even get bad fixes, I get no fixes at all. Never ever, even after hours in the open. This sucks.
Hi,
Disabling google maps helped me. Before 0 sats visible, after disabling it locks within seconds.
apneist said:
Hi,
Disabling google maps helped me. Before 0 sats visible, after disabling it locks within seconds.
Click to expand...
Click to collapse
I had the opposite experience, I had no lock, I was trying everything, then I opened maps and I had lock in under ten seconds.
I wonder if it's a glitch in accepting the google 'we're going to follow your movements' contract. Because until I agreed to that, gps didn't work.

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