[Q] [Stock-ROM][4.1.2] GPS issue - Galaxy S II Q&A, Help & Troubleshooting

GPS using 4.0.4 was very good, quick and stable gps-fix.
After updating to 4.1.2 using original Polish update via Kies GPS is no longer performing as well as before -
long time to GPS fix, quite instable.
Could this be an A-GPS issue or sonething else?
Any similar experiences?
Any fix?
Thank you.

Nubbi said:
long time to GPS fix, quite instable.
Click to expand...
Click to collapse
I don't know about the default gps.conf setting in the Polish update, but problems like this are usually related to the NTP server setup... You can edit your gps.conf manually, or, to make things simple, download FasterFix or Faster GPS from Play Store. Make sure your NTP server is set according to your region. This will help with downloading your aGPS data. Also, check your SUPL settings in gps.conf - if it's not supl.google.com/port 7276/no SSL, set it to that. Another good option is supl.nokia.com, port 7275. Back up your gps.conf first, just in case!

It may be a modem related issue.
When you updated your rom to 4.1.2, its possible that the modem was also updated with it. If it is the case, the new modem may be the one performing poorly.
Try flashing your previous modem and check if it helps your gps lock times.

BoRiSGz said:
It may be a modem related issue.
When you updated your rom to 4.1.2, its possible that the modem was also updated with it. If it is the case, the new modem may be the one performing poorly.
Try flashing your previous modem and check if it helps your gps lock times.
Click to expand...
Click to collapse
I am not used to do this, I am a dummy.
Can a dummy do that?

Related

AT&T Samsung Galaxy S II GPS problem (GPS doesn't work)

Hi all!
Please help me to solve the problem with GPS on my SGS2.
It doesn't work at all in any navigation app, though GPS test (app from market) shows, taht the device can see a couple of satelites.
My configuration:
2.3.4 android
Kernel: 2.6.35.7
Build: UnNamed ROM v1.2.0
PS
I live in Russia. Can it be so, that GPS works only in US?
bencozzy said:
Make sure att is set to 0 in sirfgps.conf and the agps settings in the gps.conf are probably wrong too.
Click to expand...
Click to collapse
I'm sorry for lame question, but wher can find sirfgps.conf and gps.conf?
I've searched through all the phone setting and didnt find any GPS configurations except "Use GPS Satelites" (in Location and security menu).
does it work better if you have wifi on? i found its locks better when i have both gps and wifi on
what about trying this:
http://forum.xda-developers.com/showthread.php?t=1343072
joshuadjohnson22 said:
does it work better if you have wifi on? i found its locks better when i have both gps and wifi on
Click to expand...
Click to collapse
It does work with wifi on, but it uses only wifi, gps doesn't work, so there is no sense in that.
I'll try your link. thx
Can you tell me please, how should I install gps.conf file? via CWM?
Update aGPS
I had the problem as well.
I downloaded GPS Test and started it.
Go into Menu|Settings
Click Clear aGPS then Update aGPS
My GPS works fine now.
Have you tried an app like this one that is known to have support for Russia?
Thank you all for your support guys.
This http://forum.xda-developers.com/show....php?t=1343072
seems to work for me fine! Thx joshuadjohnson22, bencozzy
Adelaide., Thank you also for the great app. I'll try it!
bencozzy said:
russian gps.conf
sirfgps.conf use root explorer and go into system then etc and scrool down until you see sirfgps.conf
Click to expand...
Click to collapse
bencozzy, I understood finally how to find the sirfgps.conf file, but i can't edit it, because the system says its readonly. Could you please help me with this.
I want to sett at&t settings to 0.
bencozzy said:
Root explorer should have under settings I believe to mount as read and write.
https://market.android.com/details?id=com.jrummy.root.browserfree all you have to do on this one is grant superuser permission go to desired file tap it select edit
Click to expand...
Click to collapse
Thx! This worked!
Now I will check if my gps performance become better.
Sent from my SAMSUNG-SGH-I777 using xda premium
Platcent said:
Thx! This worked!
Now I will check if my gps performance become better.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
If it still doesn't help, FasterFix from market should be able to be another way to do your gpsconf settings correctly.
Hunt3r.j2 said:
If it still doesn't help, FasterFix from market should be able to be another way to do your gpsconf settings correctly.
Click to expand...
Click to collapse
Really great app! Thx!
Easy way to change the gpsconf file!
I was having problems with my GPS as well where it would not lock on no matter how long I waited. I did not have this problem when I first got my phone and I'm not sure when the bug was introduced. None of the software fixes worked for me, including the ones discussed here, and the problem persisted across all ROMS, including stock.
Finally I found someone in a forum that recommended removing the battery while the phone was on. I was hesitant to do this for obvious reasons, but my frusteration drove me to desparation and I tried it. To my surprise the GPS works good as ever and typically locks onto my location in less than 10 seconds. Obviously if you can get the software fix to work for you, this is better, but this was the only thing that worked for me. Hopefully this will help someone else.
learning2livelyf said:
I had the problem as well.
I downloaded GPS Test and started it.
Go into Menu|Settings
Click Clear aGPS then Update aGPS
My GPS works fine now.
Click to expand...
Click to collapse
This fix worked great for me!! Stock odexed, rooted, lidroid toggles, adw launcher.
bencozzy said:
Make sure att is set to 0 in sirfgps.conf and the agps settings in the gps.conf are probably wrong too.
Click to expand...
Click to collapse
What should the agps settings in gps.conf be set to?
I already set ATT=0 and used Faster Fix, but still locking/fixing is very slow, sometimes taking hours.
Could this have anything to do with my location? I am in China now, have unlocked the phone so using on a local carrier. Last time I was in the US (using it with ATT) it worked great.
Solved - SGH-I777 GPS fix
The sirfgps.conf ATT_NETWORK_OPERATOR=0 did nothing for me on my AT&T SGH-I777.
I got that GPS fix app and gps worked but its full of spam adverts that show on your notification bar. They appear with a star infront of the spam advert.
I fixed it the old fashion way. By remembering how I fixed my AT&T Galaxy I gps issue.
in /etc/sirfgps.conf leave att_network_operator=1
change, SSL_ENABLED=1
save and exit
in /etc/gps.conf change the following:
SUPL_HOST=www.spirent-ics.com
SUPL_PORT=7275
save and exit.
now I get 7 second gps lock in Miami Fl.
Platcent said:
Hi all!
Please help me to solve the problem with GPS on my SGS2.
It doesn't work at all in any navigation app, though GPS test (app from market) shows, taht the device can see a couple of satelites.
My configuration:
2.3.4 android
Kernel: 2.6.35.7
Build: UnNamed ROM v1.2.0
PS
I live in Russia. Can it be so, that GPS works only in US?
Click to expand...
Click to collapse
If any GPS program does not work on Your mobile then check this. May help.
m1xit said:
I was having problems with my GPS as well where it would not lock on no matter how long I waited. I did not have this problem when I first got my phone and I'm not sure when the bug was introduced. None of the software fixes worked for me, including the ones discussed here, and the problem persisted across all ROMS, including stock.
Finally I found someone in a forum that recommended removing the battery while the phone was on. I was hesitant to do this for obvious reasons, but my frusteration drove me to desparation and I tried it. To my surprise the GPS works good as ever and typically locks onto my location in less than 10 seconds. Obviously if you can get the software fix to work for you, this is better, but this was the only thing that worked for me. Hopefully this will help someone else.
Click to expand...
Click to collapse
Sounds funny but for me it has worked fine. I has problem with GPS since I have changed ROM. After this change GPS does not work even on original ROM. Many thanks :highfive:
me ...
thanks !!!

[PROBLEM] GPS not working with CGM7.1

Hello,
I have a SG Ace with the CyanoGenMod 7.1 installed.
The GPS only gives the position sometimes. I have tried GMaps, Navigation, GPS test plus and GPS status and none of them work properly.
Actually, only Navigation has worked twice and when it does, the rest of apps work too (just for a limited time).
It takes ages to work and the problem is not finding the satellites since I detect (with GPS status and GPS test plus) 6 to 10 of them. It seems like it can't process the data and calculate the coordinates.
Any idea of what could be the problem? Have you heard of same problem in others SGA with CGM7? Any solution?
Thank you very much!
PD: I haven't tried the GPS with stock rom but since it has work twice with CGM7.1 and detects the satellites I think we can discard that the GPS is broken. It is more like bad configuration.
EDIT: when I download the A-GPS info I NEVER get a satellite. This maybe a symptom of something.
Did you see the GPS thread in the Android Dev section ?
Sent from my GT-S5830 using XDA App
EmoBoiix3 said:
Did you see the GPS thread in the Android Dev section ?
Sent from my GT-S5830 using XDA App
Click to expand...
Click to collapse
I am reading:
http://forum.xda-developers.com/showthread.php?t=1320626
http://forum.xda-developers.com/showthread.php?t=1284506
I will post any info if the GPS it is fixed with these.
EDIT: this doesn't seem to work. Any idea?
davidteleco said:
I am reading:
http://forum.xda-developers.com/showthread.php?t=1320626
http://forum.xda-developers.com/showthread.php?t=1284506
I will post any info if the GPS it is fixed with these.
EDIT: this doesn't seem to work. Any idea?
Click to expand...
Click to collapse
Same here, tried the above but still no GPS.
Installed GPS Test and nothing showing - put the phone outside not testing in the house.
Worked OK on stock ROM
Clumzie said:
Worked OK on stock ROM
Click to expand...
Click to collapse
Now we have a problem. I have tried almost every trick and nothing worked. I can't believe we are the only people having this trouble, there must be someone else.
Does anyone know how the GPS works? What is the algorithm? We should be able to find where the problem is located.
My GPS can find the satellites (from 6 to 10) even inside of buildings (2-5) and have worked twice, only twice but it went okay. Usually, it doesn't give me the coordinates, as I said, this only happened twice.
I think the error could be related to the next step, once it has located the satellites, what does it have to do? Synchronise with the ntp servers?
Also we can try a personalized gps.conf config file because the others below haven't worked.
I hope someone understand the GPS process better than we do and can help us.
Thank you all.
I provided 2 sets of gps.conf and secgps.conf and both also didn't work for you?
My problem is similar.I can't get any satellites until I reboot.even after reboot, it doesn't lock even after having more than 10 satellites.I have to restart the GPS status a few times before it locks
Sent from supercharged cyanogen7ace
happily1986 said:
I provided 2 sets of gps.conf and secgps.conf and both also didn't work for you?
Click to expand...
Click to collapse
Tried the second set of conf files and left my phone outside for about 20 mins and finally got a lock but only about 80 feet accurate.
Thanks for the tutorial.
Not sure if you have the latest modem/radio. Flashing the latest might help if that's the case.
revile said:
Not sure if you have the latest modem/radio. Flashing the latest might help if that's the case.
Click to expand...
Click to collapse
Probably being a bit dim but is that an FM radio and what is/where do I get the latest versions of the modem?
EDIT
Flash a current modem file in ODIN I guess?
Finally getting very quick fix times (inside the house) by following instructions in this thread:
http://forum.xda-developers.com/showthread.php?t=1239713
I think using Assisted GPS was the key though.
With assisted GPS, it is expected to have much faster lock
Clumzie said:
Finally getting very quick fix times (inside the house) by following instructions in this thread:
http://forum.xda-developers.com/showthread.php?t=1239713
I think using Assisted GPS was the key though.
Click to expand...
Click to collapse
Sent from supercharged cyanogen7ace
I have tried almost every gps.conf in the forum and I haven't fixed the Ace yet.
However, I discovered two things:
1) If you reboot the phone with the "GPS Active" option ticked and reset the AGPS data (with GPS-Status) you always get locked.
2) When you get locked as I said in 1), it always refresh the coordinates once per 30 seconds (a normal GPS do it in once per second, checked with a stock galaxy s2).
The 30 seconds refreshing is very suspicious, like a wrong value in a configuration parameter. Any idea?
I think the problem is in the cyanogen, remember this is a ported mod from galaxy s to galaxy ace so it was not originally programmed for this phone.
Good information, I suspect it's due to cyanogen too. Can't wait for the official cyanogen. I hope it will fix the GPS issue. It's annoying sometimes....
davidteleco said:
I have tried almost every gps.conf in the forum and I haven't fixed the Ace yet.
However, I discovered two things:
1) If you reboot the phone with the "GPS Active" option ticked and reset the AGPS data (with GPS-Status) you always get locked.
2) When you get locked as I said in 1), it always refresh the coordinates once per 30 seconds (a normal GPS do it in once per second, checked with a stock galaxy s2).
The 30 seconds refreshing is very suspicious, like a wrong value in a configuration parameter. Any idea?
I think the problem is in the cyanogen, remember this is a ported mod from galaxy s to galaxy ace so it was not originally programmed for this phone.
Click to expand...
Click to collapse
switch to stock
riikii said:
switch to stock
Click to expand...
Click to collapse
After trying all the possibilities:
- Installing stock (gps-ok) and restoring my cm7 backup NOT WORKING*
- Installing stock and cm7 from new NOT WORKING
- Installing different stocks versions WORKING*
- Installing mods (gingerreal....) WORKING
- Trying almost every fix with cm7 (gps.conf, fasterfix-apps...) NOT WORKING
After all, the GPS HAS NOT WORKED EVER* with cyanogen mod 7.1 RC1 in galaxy ace.
So I just got back to stock, rooted and reinstalled apps, configs, etc.
I have something to say: if GPS doesn't work to anybody with CGM7.1, this MUST BE in the specification rom page because for many people (like me) the GPS related apps represent a high percentage of use. People should be warned about this issue in order to install or not the rom.
Thank you all, you have been very helpful, as always in this forum.
(*) normal working means <20s to lock, refreshing every second, even when you turn the gps off and on again...
I use GPS extensively too
davidteleco said:
After trying all the possibilities:
- Installing stock (gps-ok) and restoring my cm7 backup NOT WORKING*
- Installing stock and cm7 from new NOT WORKING
- Installing different stocks versions WORKING*
- Installing mods (gingerreal....) WORKING
- Trying almost every fix with cm7 (gps.conf, fasterfix-apps...) NOT WORKING
After all, the GPS HAS NOT WORKED EVER* with cyanogen mod 7.1 RC1 in galaxy ace.
So I just got back to stock, rooted and reinstalled apps, configs, etc.
I have something to say: if GPS doesn't work to anybody with CGM7.1, this MUST BE in the specification rom page because for many people (like me) the GPS related apps represent a high percentage of use. People should be warned about this issue in order to install or not the rom.
Thank you all, you have been very helpful, as always in this forum.
(*) normal working means <20s to lock, refreshing every second, even when you turn the gps off and on again...
Click to expand...
Click to collapse
Sent from supercharged cyanogen7ace
spicediablo said:
Can't wait for the official cyanogen.
Click to expand...
Click to collapse
Is it confirmed that we are having an official cyanogen version for galaxy ace? Any date?
It is confirmed but no ETA
davidteleco said:
Is it confirmed that we are having an official cyanogen version for galaxy ace? Any date?
Click to expand...
Click to collapse
Sent from supercharged cyanogen7ace

[Q] How can I test GPS on custom ROM?

yesterday I installed custom Rom (HyDrOG3N-ICS 02.04 ) on my galaxy S2 and now I am having problem with GPS signals, can anyone confirm if they are able to use gps on this Rom. thanks
Can't confirm GPS works on this rom as I don't use it, but in answer to the question raised in the subject of your post, you can test GPS with GPS Status from market. Shows all kinds of useful details/info (and comes in a 'lite' version w/ads if you're averse to paying for apps )
When I first installed the rom, gps didnt locate me when I used google maps. I just used gps fix from the market and it found me pretty fast.
Kaze105 said:
When I first installed the rom, gps didnt locate me when I used google maps. I just used gps fix from the market and it found me pretty fast.
Click to expand...
Click to collapse
how log will it take the whole fixing process after hitting "start fixing" button ?
Thanks
MistahBungle said:
Can't confirm GPS works on this rom as I don't use it, but in answer to the question raised in the subject of your post, you can test GPS with GPS Status from market. Shows all kinds of useful details/info (and comes in a 'lite' version w/ads if you're averse to paying for apps )
Click to expand...
Click to collapse
I have tried GPS Status from market it did not catch any signals. I am a bit confused between, its hardware problem or software
You may test to flash other radio.
It's not HARDWARE considering that it was working on your old rom
moden and gps?
is there any connection between this 2 ?

Gps Problems

Hi, I bought a Motorola Atrix in Amazon 2 months ago. Since start the Gps din't work at all, 0 in view in apps like "Gps test". I tried almost everything: changing gps.conf, flashing radios, using custom roms like Nottachtrix and CM7, and reverting back to stock via rsd. Btw, a friend of mine who bought the same phone at the same time, had problems with gps in stock rom, but after flashing CM7, it worked just fine.
So, I ask you to help me giving any ideas to fix this.
Maybe this can be useful: The Atrix came with Italian retail rom and N_01.100.00R radio.
Thanks a lot.
PS: Sorry if I don't write quite well, I'm not an english natural speaker.
djbeta66 said:
Hi, I bought a Motorola Atrix in Amazon 2 months ago. Since start the Gps din't work at all, 0 in view in apps like "Gps test". I tried almost everything: changing gps.conf, flashing radios, using custom roms like Nottachtrix and CM7, and reverting back to stock via rsd. Btw, a friend of mine who bought the same phone at the same time, had problems with gps in stock rom, but after flashing CM7, it worked just fine.
So, I ask you to help me giving any ideas to fix this.
Maybe this can be useful: The Atrix came with Italian retail rom and N_01.100.00R radio.
Thanks a lot.
PS: Sorry if I don't write quite well, I'm not an english natural speaker.
Click to expand...
Click to collapse
Anybody?
djbeta66 said:
Anybody?
Click to expand...
Click to collapse
If you use an app such as GPS status do you pick up any satellites? It seems to be a common problem to find the satellites but not to be able to get a lock.
Also is you install GPS Status it will allow you to update the agps files.
Did you try gps lock with data access enabled? And as eddhard said do you pick any satellites?
In the gps settings menu turn OFF the options to use mobile networks or wifi. Then use the gps status or gps test app outside in a clear view for a minute or two. If it reports an accuracy distance as 0 or an error there is an issue with your gps that I might have a solution for.
For no reason my gps straight up failed to get a lock. In the test apps, it would see 9-10 satellites with strong signal but never wanted to get a lock. Multiple multiple factory resets, formats, any other variable I tried to change and the issue persisted.
I've attached the file that fixed the issue for me. Extract the libnmea.so and place it in your /system/lib folder after you make a backup of the existing file. Let us know if that helps.
eddhard said:
If you use an app such as GPS status do you pick up any satellites? It seems to be a common problem to find the satellites but not to be able to get a lock.
Also is you install GPS Status it will allow you to update the agps files.
Click to expand...
Click to collapse
Zeljko1234 said:
Did you try gps lock with data access enabled? And as eddhard said do you pick any satellites?
Click to expand...
Click to collapse
matthewvl said:
In the gps settings menu turn OFF the options to use mobile networks or wifi. Then use the gps status or gps test app outside in a clear view for a minute or two. If it reports an accuracy distance as 0 or an error there is an issue with your gps that I might have a solution for.
For no reason my gps straight up failed to get a lock. In the test apps, it would see 9-10 satellites with strong signal but never wanted to get a lock. Multiple multiple factory resets, formats, any other variable I tried to change and the issue persisted.
I've attached the file that fixed the issue for me. Extract the libnmea.so and place it in your /system/lib folder after you make a backup of the existing file. Let us know if that helps.
Click to expand...
Click to collapse
Thanks for your answers, the problem isn't the locking of any of the sats. Test apps show "0 in view" even on outdoors.
I don't have a solution. But I've had a lot of difficulty with GPS on my Atrix as well. I can get a lock usually after a minute or so, but then the GPS would go to sleep. So if I'm moving or logging a route, it'll show me where I started even after several minutes. I flashed radios, updated gps conf, and used GPS Status & Toolbox to get a lock. Still no improvement. It helped me get the initial lock, and didn't resolve the freezing issue. I eventually gave up and bought separate GPS. So I'd be interested to know if you find a way to fix this.
Guys, if you don't see any satellites in GPS Status app, maybe is hardware issue. If you have warranty, use it. If you don't, try to disassemble your phone and look. Maybe just cable is disconnected or has bad contact. Of course be very careful with disassembling or ask someone with experiences. Youtube guide how to change digitizer on Atrix could be useful.
Good luck
I had problems with GPS fix on AT&T atrix 4g with N_01.100.00R europe radio. After flashing 37p at&t radio gps works perfectly, fix is really fast.
Also WiFi signal strength increased.

[Q] GPS issues

Hey guys, ever since flashing a custom ROM onto my Verizon GS4, I've had issue with getting my phone's location. Given the location options on 4.4.3, the phone is able to get a rough location on the High Accuracy setting but can't do anything under Device Alone. As such, I'm pretty sure it's the GPS having issues. Others have had compass problems with the ROM I'm currently on, but everyone seems to be able to get a GPS lock when I can't. I've done a dirty flash, a clean flash, and even redownloaded the .zips from other locations in case the file was bad, but nothing has solved my problem. I use my phone's location settings for a variety of apps, so I'd really like to get it working again. Does anyone know of diagnostics I could perform? My hope is that it's just a software issue, and that I didn't do any permanent damage to the hardware. Thanks for the help!
(also, I'm posting here because I'm new to the forum and can't post in the developer threads yet)
Try faster fix in the play store. I've used it with several roms on several phones and it is very good
PurdueLumberjack said:
Hey guys, ever since flashing a custom ROM onto my Verizon GS4, I've had issue with getting my phone's location. Given the location options on 4.4.3, the phone is able to get a rough location on the High Accuracy setting but can't do anything under Device Alone. As such, I'm pretty sure it's the GPS having issues. Others have had compass problems with the ROM I'm currently on, but everyone seems to be able to get a GPS lock when I can't. I've done a dirty flash, a clean flash, and even redownloaded the .zips from other locations in case the file was bad, but nothing has solved my problem. I use my phone's location settings for a variety of apps, so I'd really like to get it working again. Does anyone know of diagnostics I could perform? My hope is that it's just a software issue, and that I didn't do any permanent damage to the hardware. Thanks for the help!
(also, I'm posting here because I'm new to the forum and can't post in the developer threads yet)
Click to expand...
Click to collapse
this is what I have done to get GPS working, I'm kitkat and echo v24 rom
1. I reflashed gigilies wifi fix in safestrap
2. installed gps status app from playstore
3. app found the satellites and now I have gps working
decaturbob said:
this is what I have done to get GPS working, I'm kitkat and echo v24 rom
1. I reflashed gigilies wifi fix in safestrap
2. installed gps status app from playstore
3. app found the satellites and now I have gps working
Click to expand...
Click to collapse
I looked up the fix you're talking about. Others seem to have had success through the gps status apps available on the playstore. Unfortunately, they didn't have any effect on my phone. I'm still stuck at searching for GPS on any app that uses it. Those who had success seem to have had it with a ROM that originally worked, but lost the ability to successfully connect. My issue seems to be in the ROM itself, or at least that's what makes sense to me. Thanks for the advice and trying to help.
PurdueLumberjack said:
Hey guys, ever since flashing a custom ROM onto my Verizon GS4, I've had issue with getting my phone's location. Given the location options on 4.4.3, the phone is able to get a rough location on the High Accuracy setting but can't do anything under Device Alone. As such, I'm pretty sure it's the GPS having issues. Others have had compass problems with the ROM I'm currently on, but everyone seems to be able to get a GPS lock when I can't. I've done a dirty flash, a clean flash, and even redownloaded the .zips from other locations in case the file was bad, but nothing has solved my problem. I use my phone's location settings for a variety of apps, so I'd really like to get it working again. Does anyone know of diagnostics I could perform? My hope is that it's just a software issue, and that I didn't do any permanent damage to the hardware. Thanks for the help!
(also, I'm posting here because I'm new to the forum and can't post in the developer threads yet)
Click to expand...
Click to collapse
Did you try the faster fix app yet?
rnh said:
Did you try the faster fix app yet?
Click to expand...
Click to collapse
I have tried faster GPS (running 4.4.4, so faster fix is a no-no) with no success. It replaces the file detailing GPS information and the like, but I'm still stuck searching for GPS permanently.
Sent from my SCH-I545 using XDA Free mobile app

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