gt-p1000 gps problems - Galaxy Tab Q&A, Help & Troubleshooting

hi all,
I was just wondering if I was the only one with gps troubles.
I tried stock rom, overcome, ics miui, jb aokp, but rarely got satellites detected.
I once got some connexions while using tomtom but about 20 minutes (discontinued) on a 2 hours trip.
with some test apps I got 3 feeble satellites signals.
Does someone else had so much trouble ?
(I trying some gps fixes I found but just wanted to know if I was the only one)
thanks

you are not the only one
Arlock said:
hi all,
I was just wondering if I was the only one with gps troubles.
I tried stock rom, overcome, ics miui, jb aokp, but rarely got satellites detected.
I once got some connexions while using tomtom but about 20 minutes (discontinued) on a 2 hours trip.
with some test apps I got 3 feeble satellites signals.
Does someone else had so much trouble ?
(I trying some gps fixes I found but just wanted to know if I was the only one)
thanks
Click to expand...
Click to collapse
No you are not.
Did you GPS work at all?
Mine did and then stopped.. here is what I did before it stopped.
I rooted it with ODIN (ages ago)
for ICS I followed the widely available instructions to get ICS (How to install Stable ICS 4.0.4 on Galaxy TAB P1000 [CyanogenMod 9 Stable]) and everything worked well. Needed a different camera app but the GPS worked reliable and FAST.
When JB was available I used the ROM Based on Jelly Bean 4.1.2 Platform. This is the official CyanogenMod 10 Nightly but had issues with Gapps and did not have time back then (xmas time) so just restored my nandroid backup. And to be honest I have no idea if the GPS worked after that. I think I used the iPhone more for GPS stuff until March.
Fact was it did not get any satelite at all, only location is via WIFI.
My hypo was that I may have missed something or the nandroid backup / restore does not include all files.
To fix it I looked for a later ROM and used JB. I used the Android 4.2.1 CM10.1 for Samsung Galaxy Tab 7 P1000 [Filename: cm-10.1-20121229-EXPERIMENTAL-p1-cdesai.zip] and Google Apps [Filename: gapps-jb-20121130-signed.zip] and that rome is reported that GPS works (but remember it did not work before i used this rom)
All went well and the rom works with all other features but did not GPS and I still have 0 satelites with either GPS Test or GPS Fix.
That is when I found your post.
I had a good dig around XDS and well GPS issues are plentiful, but not quite like the one you or I experience.
It seems that you at least get "some" satelites which is an improvement over none.
re-stocking did not solve it for you so I may save myself the trouble.
that said, my only thought is the GPS module packed in and that is why I get not a single satelite...
did you get anywhere?
TIA

schxx74 said:
No you are not.
Did you GPS work at all?
Mine did and then stopped.. here is what I did before it stopped.
I rooted it with ODIN (ages ago)
for ICS I followed the widely available instructions to get ICS (How to install Stable ICS 4.0.4 on Galaxy TAB P1000 [CyanogenMod 9 Stable]) and everything worked well. Needed a different camera app but the GPS worked reliable and FAST.
When JB was available I used the ROM Based on Jelly Bean 4.1.2 Platform. This is the official CyanogenMod 10 Nightly but had issues with Gapps and did not have time back then (xmas time) so just restored my nandroid backup. And to be honest I have no idea if the GPS worked after that. I think I used the iPhone more for GPS stuff until March.
Fact was it did not get any satelite at all, only location is via WIFI.
My hypo was that I may have missed something or the nandroid backup / restore does not include all files.
To fix it I looked for a later ROM and used JB. I used the Android 4.2.1 CM10.1 for Samsung Galaxy Tab 7 P1000 [Filename: cm-10.1-20121229-EXPERIMENTAL-p1-cdesai.zip] and Google Apps [Filename: gapps-jb-20121130-signed.zip] and that rome is reported that GPS works (but remember it did not work before i used this rom)
All went well and the rom works with all other features but did not GPS and I still have 0 satelites with either GPS Test or GPS Fix.
That is when I found your post.
I had a good dig around XDS and well GPS issues are plentiful, but not quite like the one you or I experience.
It seems that you at least get "some" satelites which is an improvement over none.
re-stocking did not solve it for you so I may save myself the trouble.
that said, my only thought is the GPS module packed in and that is why I get not a single satelite...
did you get anywhere?
TIA
Click to expand...
Click to collapse
hi there,
for my part, I bought this used tab some month ago. I didn't really liked it in gb, so almost immediatly tried to root it, changed recovery and rom, but never tested gps then.
I actually use miui ics rom and tried gps once. on a 2 hours long trip, sunny weather, nothing to disturb gps signal, I had 20mn of signal and not in a single straight connexion, but only just 1 or 2 mn from time to time.
I tried restock, but not bettre, even my chinese tab is more efficient. I'm still trying to understand and looking for answers but I nedd to restart my searches all over, too much things founds and now I'm quite lost.
The only thing I remember is that someone picked up gps files from his old samsung gsm and copied them on his GT as they had the same system.
I'll try to find that back, and maybe I'll try with my htc as they're all two on miui.
I'll send infos if I find something working

The same problem
Arlock said:
hi there,
for my part, I bought this used tab some month ago. I didn't really liked it in gb, so almost immediatly tried to root it, changed recovery and rom, but never tested gps then.
I actually use miui ics rom and tried gps once. on a 2 hours long trip, sunny weather, nothing to disturb gps signal, I had 20mn of signal and not in a single straight connexion, but only just 1 or 2 mn from time to time.
I tried restock, but not bettre, even my chinese tab is more efficient. I'm still trying to understand and looking for answers but I nedd to restart my searches all over, too much things founds and now I'm quite lost.
The only thing I remember is that someone picked up gps files from his old samsung gsm and copied them on his GT as they had the same system.
I'll try to find that back, and maybe I'll try with my htc as they're all two on miui.
I'll send infos if I find something working
Click to expand...
Click to collapse
Sorry for my english!
My GT-P1000 was to repair because it was unable to read the internal memory! After that I never tested the gps and rooted the tab with CM10.1 TWRP 20130802 Kernel 3.0.88 v1.35 (cm-10.1-20130802-UNOFFICIAL-p1)! I tried gps, but there is no gps signal and there are no satellites found!
Did ypu solved the problem?

Lotter2909 said:
Sorry for my english!
My GT-P1000 was to repair because it was unable to read the internal memory! After that I never tested the gps and rooted the tab with CM10.1 TWRP 20130802 Kernel 3.0.88 v1.35 (cm-10.1-20130802-UNOFFICIAL-p1)! I tried gps, but there is no gps signal and there are no satellites found!
Did ypu solved the problem?
Click to expand...
Click to collapse
no, still not solved it, I suspect some hardware problem like gps chip dead, gps antenna unplugged or broken, but as I had troubles with electronics thèses days, I will wait to open my GT

install apps like Faster GPS, GPS Fix or similar from Play
define your NTP Server and load XTRA data (table of current satellite position)
this will help you!

Related

[Q] GPS Broken

Hi,
Few month ago, my N1 falled on the street and the touch screen broked. I ordered a new one, dissassembled the phone to replace it, reassembled and everything was working fine.
Then one week ago, i dissasembled it again to clean some (a lot of) dust that went under the screen. Now everything is still working except the GPS.
GPS test doesn't show me any satellite, nothing... it just say "GPS on"
I'm using cyanogen 6.0 rc3.
Does anyone knows where to look inside the phone to check if something is broken ?
popopow said:
Hi,
Few month ago, my N1 falled on the street and the touch screen broked. I ordered a new one, dissassembled the phone to replace it, reassembled and everything was working fine.
Then one week ago, i dissasembled it again to clean some (a lot of) dust that went under the screen. Now everything is still working except the GPS.
GPS test doesn't show me any satellite, nothing... it just say "GPS on"
I'm using cyanogen 6.0 rc3.
Does anyone knows where to look inside the phone to check if something is broken ?
Click to expand...
Click to collapse
Have you tried a couple of different ROM / kernel combinations to make sure it's not a software issue?
Well i was using kang o rama 1.0 b2 with an intersecraven kernel, then i switched to the last service pack of kang o rama (so based on cyano 6.0 rc3) with the kernel that comes with it.
I think if there was a problem with gps in the the cyano / kang o rama, it will be widely reported here. And the GPS was the only thing that always worked fine in almost all roms /kernel i have tried.
popopow said:
Well i was using kang o rama 1.0 b2 with an intersecraven kernel, then i switched to the last service pack of kang o rama (so based on cyano 6.0 rc3) with the kernel that comes with it.
I think if there was a problem with gps in the the cyano / kang o rama, it will be widely reported here. And the GPS was the only thing that always worked fine in almost all roms /kernel i have tried.
Click to expand...
Click to collapse
Many users report problems with GPS on RC3. Check that thread.
The GPS problem occured days before upgrading to RC3. I installed RC3 only to see if it fixes something but nope.
People on the thread says that with the RC3, it's quite long to get GPS lock, about 5 min. For me, it's impossible to get any GPS lock, even after half an hour, outside during a sunny day.
The problem started to show right after dissambling the phone, not after changing software. So i suppose i did something wrong while reassembling.
if you made a nandroid you can try flashing it back... as gerikss said, many users are having gps issues on CMRC3
heya,
I was having GPS problems as well with my first Nexus One - turned out to be hardware problems, had to send it back.
I installed GPS Status from the Market, and mine wasn't able to see any satellites - is yours able to see any satellites?
http://forum.xda-developers.com/showthread.php?t=711448
Hmm, it sounds like you've put yours through the wringer though...haha...and taking it apart? Yeah, not sure if warranty will repair that for you. You can give it a shot?
Cheers,
Victor
popopow said:
The GPS problem occured days before upgrading to RC3. I installed RC3 only to see if it fixes something but nope.
People on the thread says that with the RC3, it's quite long to get GPS lock, about 5 min. For me, it's impossible to get any GPS lock, even after half an hour, outside during a sunny day.
The problem started to show right after dissambling the phone, not after changing software. So i suppose i did something wrong while reassembling.
Click to expand...
Click to collapse
The problem is not in the phone but the RC3 build which is widely used right now. Change it and I GUARANTEE it will work fine. FYI.. Rodriguez, Cyanogen, and Kang all use the build.
Is my english that bad ? My GPS problem started to occur with RC2 ! then i installed RC3. And they started right after dissambling my phone, not after any kernel / rom / radio / software change.
Like victorhooi said, GPS test program (or any gps diagnostic) is giving me no signal.
No matter i dissambled it or not, my phone is not under warranty, I got it offered at a google conférence.
I guess i'll have to live with only 3G location until a new phone will make me want to leave my N1.
popopow said:
is my english that bad ? My gps problem started to occur with rc2 ! Then i installed rc3. And they started right after dissambling my phone, not after any kernel / rom / radio / software change.
Like victorhooi said, gps test program (or any gps diagnostic) is giving me no signal.
No matter i dissambled it or not, my phone is not under warranty, i got it offered at a google conférence.
I guess i'll have to live with only 3g location until a new phone will make me want to leave my n1.
Click to expand...
Click to collapse
most likely if the gps is showing "on" as you stated in post 1 then the gps isn't "broken", but most likely a loose connection. Some problems are solved flashing back to factory rom. If the gps was broken it wouldn't activate.
this post fixed it for me.
forum.xda-developers. com/showthread.php?t=625061
Hi,
flashed modaco r21 with stock froyo kernel, did what's told in the previous post (in fast, it was already like this). Still no GPS. GPS Test shows me no satellite.
I tell you, it's inside the phone. Maybe something is really broken, maybe just not connecte something correctly. But i want to know where to look before opening it again.
I'm having problems with my GPS too. I remember that it used to work well with FRF91. I still have locked bootloader and I rooted yet. Most of the time, it takes me a while to get a GPS lock, 5-10 minutes. Sometimes, it never gets a lock. Any ideas?
Update: I fixed my problem with the link in post#11.

CM7 GPS not working

Hi,
I found so much different informations about GPS in CM7 but nothing really worked, and I don't know what is correct!
In Modaco FR19 it worked like charm!
I have the latest CM7 (from 07.04.2011), so I have the lto.dat that came with the rom, and my gps.conf looks like:
NTP_SERVER=de.pool.ntp.org
the three XTRA_SERVER...
SUPL_HOST=supl.nokia.com
SUPL_PORT=7275
Can anyone help me please?
Thanks
Ignore your gps.conf, it isn't used by the O2X. Make sure you're running at least #65, as there is a GPS fix included.
Edit: I see you do have a build new enough for that, so good stuff. How many locations have you tried it in? Use GPS status too see how many sats are picked up and what signal strength they're at.
This won't contribute much...but..
I have the 07.03 CM7 (#66)and;
-in maps, the time it takes to get the signal varies from instantly to a few mins or so.
- in navigation it does not appear to work.
Hi,
So far I only tested it in one location (will test it now in different)
I don't get gps location neither in maps nor navigation!
GPS Status says 0 in view and 0 in use...
So there is nothing I can do, but wait for a fix from CM7?
There isn't likely to be a fix for your individual phone, considering it works for everyone else.
Have you tried re-flashing it? Tried wiping it?
Ok it's fixed, I cleared AGPS data and changed location from inside to outside and got a gps fix in 2 seconds...
Thanks guys
Fendria said:
Ok it's fixed, I cleared AGPS data and changed location from inside to outside and got a gps fix in 2 seconds...
Thanks guys
Click to expand...
Click to collapse
How do you clear the AGPS data?
Thanks!
download GPS Status from market
did you have problems with the gps-fix itself or with navigation?
i'm using CM7.1 and while CoPilot wasn't able to get a gps- fix, google maps navigation worked fine
charleybrown_de said:
How do you clear the AGPS data?
Thanks!
Click to expand...
Click to collapse
With the apps GPS Status dont habe it anymore so i cant look for it, but Its in there. ..
Had Problems with both
Sent from my Optimus 2X using XDA App
I am on the nightly #73. Google navigation works ok, Sygic (latest trial from the market) also gets a solid fix most of the time.
Copilot 9 premium jumps to a location then sits there for some time and does not track the movement, then jumps again and does the same. I had it working ok on stock. My O2X is originally V10d UK version. Copilot 9 UK and Ireland.
Tried to use the tricks from other threads: running GPSTest with a GPS fix in the background and then switching to Copilot. Does not work. BTW a colleague with an SGS on stock also has exactly the same problem.
m0bster said:
I am on the nightly #73. Google navigation works ok, Sygic (latest trial from the market) also gets a solid fix most of the time.
Copilot 9 premium jumps to a location then sits there for some time and does not track the movement, then jumps again and does the same. I had it working ok on stock. My O2X is originally V10d UK version. Copilot 9 UK and Ireland.
Click to expand...
Click to collapse
that's exacly what happened to me (see some posts before)
i'm now back to stock (had CM7 RC1), after CM suddely rebootet twice a day and finally freezed, with stock i don't have any of these problems since reflashing with smartflash and freezing lg-apps
frittenpiekse said:
that's exacly what happened to me (see some posts before)
i'm now back to stock (had CM7 RC1), after CM suddely rebootet twice a day and finally freezed, with stock i don't have any of these problems since reflashing with smartflash and freezing lg-apps
Click to expand...
Click to collapse
Hmmm I don't have any reboots with the current CM7 nightly, but I had a few of them on stock. I hated stock and I like CM7 a lot. Would be a pity to go back.
Regarding the GPS lock times.
Be PATIENT the first time you try to get the lock.
For me it took about 5 minutes to get the lock for the first time. After that initial lock it now takes under 10 seconds.
Try using GPS status from market to see the satellites.
Needless to say, do this outside for best signal
I'm running CM7 #73
Sent from my Optimus 2X using XDA App

GPS issues since root ?

Hello,
So, as the title tells, i've got some GPS issues since i'm using custom rom (both TW and AOSP ).
Nearly each time, it takes up to 15 Minutes before the first lock is made. So the usage of Google maps or any "speed control" apps is quite impossible.
I tried GPS status app and let it download new AGPS data. But even when I am outside it finds only 1/2 satellites without fix.
I think i'm gonna reverse to a Stock ROM tonight in order to test if it's really rooting problem.
Anybody has an other idea ?
Thanks,
It's closed now .
It was an hardware problem.

[Solved] GPS Fix for CM10.1 that worked for me.

I found this fix which actually worked for me. I cleared the Data for Google Services Framework and I got GPS signal in about 10 seconds and it locked onto 8 satellites and stayed locked. See link here GPS Fix
Previously to this I got no signal at all. I tried various apps and still got no connection. I had this issue for a few months and thought that I had a problem with CM10.1 even after I did a complete wipe of data and reinstalled various ROM's.
I'm currently on AndroSlim 4.2.1 and seems to be fine at the moment. I was just soooo happy that I thought I should share this with you guys.
protonpower said:
I found this fix which actually worked for me. I cleared the Data for Google Services Framework and I got GPS signal in about 10 seconds and it locked onto 8 satellites and stayed locked. See link here GPS Fix
Previously to this I got no signal at all. I tried various apps and still got no connection. I had this issue for a few months and thought that I had a problem with CM10.1 even after I did a complete wipe of data and reinstalled various ROM's.
I'm currently on AndroSlim 4.2.1 and seems to be fine at the moment. I was just soooo happy that I thought I should share this with you guys.
Click to expand...
Click to collapse
Hello,
It's not that I didn't get a GPS location, but after upgrading van CM10 to CM10.1, the app Endomondo can't measure the distance correct. After biking for approx. 50 meters, it states that I have already done another kilometer. (I rode a trail of 2 kilometers, and afterwards it said I biked for 31 km)
Installing a previous version of Endomondo does not help so I think the problem is with the 4.2 version of android.
Does anyone have that same experience?
Thanks.
pastaeter said:
Does anyone have that same experience?
Click to expand...
Click to collapse
Yeah I have the same problem. I tried Cardiotrainer as well and had the same problem.
Edit: This problem has been filed as a CM10.1 bug: code.google.com/p/cyanogenmod/issues/detail?id=6883
I was searching this answer for years
big thanks
Thank you you are a genuis. I will spread the word.
Unbelievable, after clearing data for Google Services Framework almost instant gps fix!
Gps is again usable!
Thanks, it realy helped.
It is works on i9001?
Thank you
Registered just to say thank you!
I've been struggling with the crap GPS reception for the past 6 months where it seemed to say "GPS signal detected", but saw zero satellites. Can't believe this ten second fix got me up and running. I was about to take the phone apart again for the hardware bend up the antenna fix. Glad this worked.
Thanks!
Maybe it is because it is version 4.2.1?
Superb!!!
tested and successful!
:good::good::good:
thank you!
on my i9000 the GPS never worked

[Q] Is there any ICS/JB rom that locks the GPS?

Hi guys,
i've tried millions of ICS/JB roms, and none of them, is able to work with the GPS properly, with the exception of the roms based on the Official V30*, but then, on those roms, several aplications don't work properlly.
So, seems i'm forever stucked in ZEUS rom.
Does anyone have a similar problem? If don't, please, tell how to solve this.
Thanks for helping
GPS in our phone is quite ****ty.
You, me, and everyone...the gps on this phone isn't a great deal...
It works fine on stock ICS, and IZS. But even on those roms, if I put it side by side with my Galaxy Tab, I find out that my tablet is able to lock twice the satellites, and have about more 10dB on each one.
But yes, on custom roms it's even worse...
Sent from my LG-P970 using Tapatalk 2
I agree. I use IZS + V30 and GPS locks quite fast. If you're looking for a custom ROM and want to use GPS, I would suggest this one.
But still it doesn't beat my wife's Sony Experia ray's GPS.
You can give the NOS GPS script by Exit_only a try. I put it on my OB and the performance is better but still not perfect. FYI perform a backup first and I'm running CM10.
Exit_Only said:
TESTED & CONFIRMED STABLE:
NOS-Injection Uninstall: http://www.mediafire.com/download.php?4sbp6a1glfohd45
THIS WILL UNINSTALL NOS FROM YOUR DEVICE. USE THIS BEFORE EACH FLASH.
GPS NOS Injector flash able zip (Stable & Tested)(USA/CANADA/MEXICO/ALASKA)
http://www.mediafire.com/download.php?d7tv8ia7o04fdw9
THIS WILL GREATLY INCREASE GPS PERFORMANCE IN THE COUNTRIES STATED ABOVE.
Click to expand...
Click to collapse
Sent from my LG-P970 using xda premium
jjeell said:
Hi guys,
i've tried millions of ICS/JB roms, and none of them, is able to work with the GPS properly, with the exception of the roms based on the Official V30*, but then, on those roms, several aplications don't work properlly.
So, seems i'm forever stucked in ZEUS rom.
Does anyone have a similar problem? If don't, please, tell how to solve this.
Thanks for helping
Click to expand...
Click to collapse
Use Pimp my rom.... http://forum.xda-developers.com/showthread.php?t=1908269
None of the gps fixes are going to work with any CM10/CM10.1 based rom, although they will work fine for LG stock ICS based roms.
Phones basically have 3 ways to get a GPS fix:
1. GPS only, takes about 20-30 minutes, info is downloaded from the satelites at about 30 bits per second, thats why it takes so long.
2. LTO (Long Term Orbit) takes about 5-10 minutes, this downloads info from the internet, so less info is needed from the satelites. LTO data is valid for a couple of weeks.
3. A-GPS (Assisted GPS) takes under a minute. Downloads lots of data from the internet based on your locataion, so even less is needed from the satelites, data is valid for 1-2 days.
All the fixes posted on the net are to reconfigure the gps.conf file, which is used for A-GPS.
In all cm builds, there is a bug in the glgps binary (in /system/bin), it tries to locate a web address bcmls2.glpals.com which is hard coded into the binary file, when it tries to get the DNS address using getaddrinfo() it seems to add an extra full stop the to the end of the address, making it invalid, which then fails to resolve. After this failure, no further attempts are made (even using the tlsStopForInvPath="false" flag).
Because of this bug, any changes to gps.conf or gps_brcm_conf.xml will not be used. So changing them wont do anything.
It is possible to force the downloading of LTO data using GPSAid from the market, it uses a method that bypasses the gps chip, so it works. But even using LTO data, it still makes the gps useless for any type of navigation app.
All the gps drivers in CM use the same ones as in LG ICS, except CM is missing three location apps: LocMgrPD.apk, LocMgrProvider.apk and LocMgrPt.apk. I think the problem with the bug mentioned above is because its missing these files, as LG ICS gps works fine.
I haven't been able to get either of those 3 apks installed on CM, resigning didn't work so it might be lack of LG dependencies, but if any dev can get those files installed and running on a CM build, I'm pretty sure that will fix the gps problem.

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