For awhile now I've had issues with the GPS on my i9192 where, using GPS Test, it will:
See multiple satellites but not get a lock
Seemingly "freeze" (satellite signal levels in GPS Test stop fluctuating)
Sometimes work fine
Sometimes only see 2 or 3 satellites despite being in a good location
These issues translate into GPS problems in my maps application (Here Maps), e.g. the maps app will be unable to get a lock, sometimes showing it has a lock for a second and then losing it again, which makes GPS navigation impossible.
I'm wondering if anyone else has experienced issues like this and whether they found any resolution, or whether anyone has any ideas as to what the cause might be.
I've tried:
Resetting/updating the AGPS settings in GPS Test
Editing gps.conf through FasterGPS
Editing gps.conf manually with various settings (rebooting after each change just in case)
Changing ROMs (from CM to LineageOS 14.1)
My feeling (and hope) is that it's a software issue since it seems to work better after a reboot (though not always). My next troubleshooting step will be to install a stock ROM and see if it resolves the issue, unless anyone else has a better idea. In particular I'm wondering if flashing a different modem/baseband would affect the GPS performance. Right now I'm on XXUCOA2.
Anyone have any thoughts?
An update: After reverting to a stock ROM, GPS performance was vastly improved, with no sign of the troubles getting a lock as was the case with LineageOS 14.1 and the CM ROM I used before that. I'm now trying to go back to Lineage OS 14.1 to see if the flash of the stock ROM (and new baseband) may have fixed it, but initial tests using GPS Test suggest that the ability of the GPS to get a lock is not as good as stock (too early to tell if I'll have the same problems not getting a lock at all).
It seems I have a similar problem right now. I'm using the lineage-14.1-20180624-nightly-serranoltexx-signed image for a long time. But last summer I noticed that GPS fix takes longer time to obtain and it's instable. Now I can't use navigation due to this problem.
Related
Hi there,
first: sorry for the 1.000.000th thread about the GPS sat fix on the DEFY, but I have tried several ROMs now and still have not found the solution for my problem.
The problem is: my DEFY does not get a GPS sat fix when data connection is turned off (e.g. roaming or turned off manually). In GPS Status I see up to ten satellites (in grey or sometimes yellow colour) but even after hours I do not get the fix. When I turn on the data connection (either 3G or wifi) I get the fix in few seconds.
I have tried several ROMs now from Froyo, over Gingerbread to now CM7 RC0, but all show the same behaviour. I have recently downloaded the GPS fix from this thread: http://forum.xda-developers.com/showthread.php?t=953630 but it did not help at all.
I have deleted the /data/location folder, reseted the aGPS data several times, nothing got better.
I feel like sending the DEFY in for repair but then Motorola will check it with aGPS and send it back unrepaired because everything works.
So, if anybody has a solution or hint I woul appreciate it very much.
Thanks in advance...
HMM !
Same problem here
it is true, without agps data, very difficult to get fixed. That's why we need agps.
I have CM7, with GPS Monitor Free and AngelDeath's GPS fix 1.2.zip installed, I am able to get GPS lock in couple minutes without any Data (on fresh restart).
Give it a shot
GPS Monitor does not solve the problem
Hi there.
@teruyume
GPS Monitor did not help, it shows the same behaviour as GPS Status. Finds many satellites but does not fix!
Can anybody check if he has data in the folder /data/location ? I deleted it as stated in the FAQ for CM7 and the folder is not yet recreated. Might this be a hint?
I really cannot tell what the problem is: good reception (10 satellites) but no fix.
I have also been having trouble with GPS on the Defy. It will get a fix very quickly but moving the phone will cause it to lose its fix. It will go from having a lock on 8/10 sats to 0/1 to 4/5, etc. It won't hold the lock for long. I tried AngelDeath's GPS fix 1.2.zip and that helped speed up fixes, but it still drops the fix if the phone is moved at all.
@hartmuna
I made a backup of /data/location and then deleted its contents (not the folder itselft). Then I got no lock at all. I rebooted the phone and it automatically repopulated the folder and began performing the same as it did before. You might want to create the /data/location folder and just leave it blank, then reboot the phone and see if it will populate it again.
I also took a look at location.cfg and noticed a lot of settings in there that might be worth tweaking, but I have no idea what they all mean.
I found the data/location folder with terminal,don't know why it doesn't sure vida astro. deleted it again but that doesn't solve the problem.
I think I might give official gingerbread 2.3.4 a chance after the weekend. hopefully this will help?!?
Does anybody have experience with the leaked 2.3.4 and gps?
Sent from my MB525 using XDA App
I also had little problems to have the fix. And when I got (after several minutes) it loses during driving. The accuracy was too bad.
on CM7 rc1v2.
Anybody without GPS problems?
Hey guys, still no solution here. Tried every ROM out there.
One question: is anybody out there who does not have any problems with GPS fix without aGPS?
I am thinking of sending the DEFY in for repair...
With JBoogie3's blurry ginger rom I got 5 satellites used in fix in less than a minute (without internet). Try this rom before sending the DEFY in service.
same problem here, using last nighly and the problem still ocurrs, tried GPS-fix from angelofdeath but stil imprecise.
No solutions so far?
--
ive tried the GPS Monitor , he shows the lock, satellites, etc.. but, the gps with a "4 meters precision" put me on another street insted of mine, a mistake of ~50 meters (shows me on a paralel street instead of mine)
My standard Defy (still on Eclair) does fixes without Agps/data connection but after a trip of say 1000 km it can take up to 15 minutes to get a fix.
It also seems to help when I reset the Agps data first through GPS status (app).
GPS fix when not applying the UPDATE.ZIP
News from my side: I updated to CM 7 RC1v2 and this time did not apply the UPDATE.ZIP for my country described in this thread: http://forum.xda-developers.com/showthread.php?t=953630
And after few minutes I finally got a fix without aGPS data!
So my suspect is now the modified gps.conf. The original one is very short a has basically just the reference to the NTP and google aGPS server. The modified has far more lines that I have not yet studied in detail.
So, I will check the line of the gps.conf and try to find out what affects the GPS of the DEFY no to work...
Greetings from a happier DEFY user
That is good news. Would you be willing to copy/paste what is in your gps.conf file so that I can try updating mine without reflashing CM 7 and see if that solves my problem?
Brent099 said:
That is good news. Would you be willing to copy/paste what is in your gps.conf file so that I can try updating mine without reflashing CM 7 and see if that solves my problem?
Click to expand...
Click to collapse
Sure, you will find the original.zip with the not modified gps.conf and then I installed the europe.zip from the above mentioned thread.
So far I am able to get a fix but for my patience it takes much too long. I am afraid that the GPS antenna of the DEFY is crappy.
Will do some more testing, any additional info is very welcome...
Okay, this seems just another common GPS problem with a DHD. But I find it intriguing.
It happens to me since I bought the phone, second hand.
I've already made the mod to the antena (soldered wire) and use the AGPS Patch and FasterFix to choose the server. Nothing solved it.
So, when the GPS works, it works really fine, no abnormal signal loss, not too much lag.
Note that it only works fine when I turn data ON, so it can download agps info.
There comes a day when I turn data on, go outside, turn Sygic on (or other gps program), and no satellites at all. GPS Status indicates the same.
I can go for more than 15 minutes without gps fix. It can go for longer, but I don't have the patience. I reset the AGPS info with GPS Status and download a fresh one and the problem remains.
If I restart the phone, 99% of the times, it solves the problem.
Now, I found out that a program called Quick Reboot (https://play.google.com/store/apps/...Glub3NvZnQuYW5kcm9pZC5RdWlja1JlYm9vdEZyZWUiXQ) avoids me having to restart the phone. Plus, GPS Doctor is quite efficient too.
So, I have to run Quick Reboot, then GPS Doctor, then Sygic or other Nav Program. Not very handy, if you're already driving...
Now, what on earth is this?
Hardware seems fine, because it doesn't fail, for example in a 300 km trip. If it gets a fix, it stays on nicely.
It sounds a software problem, deep in the OS itself.
I'm on Android 2.3.7, CM 7.2, but tested this on various CM based roms, ICS, rooted OEM ROM and it behaves the same.
If anyone can help... or share experiences... Any devs?
Thanks
I dont think it is going to get any better than that. I have the same experience as well with ICS ROMs. However, some ROM's dont do it so often.
i have same issue on default rooted rom wwe3.12.405.1.....
it may be problem with some specific models or all od dhd series
and its very random and happens on trips mostly
agps /wifi/mobile data nothing fixes it
restart fixs issue instantly ...
once after restart gps gets fixed it works perfectly ...
I have this exact same problem, and I'll try your tip for using the Quick Reboot app.
I'd also recommend the app AGPS Injector which enables you to start GPS based apps e.g. navigation etc. 'via' AGPS injector. It automatically downloads AGPS info before starting the navigation app. You can even create homescreen shortcuts for navigator apps which do it all with one click. Perfect!
I'm going to try combining this with a Quick Reboot using Tasker, again so that it does it all with just one click. I'll report back if it works.
Yep, automated steps would be great, like:
auto data on / agps injector / auto data off / run gps program
or even
Run Quick Reboot / quit Quick Reboot / auto data on / agps injector / auto data off / run gps program
:silly:
Just got a total GPS blackout an hour ago, and the combination Quick Reboot + AGPS injector (bought the full version) didn't worked for me, despite 5 or 6 atempts.
Then gave up and just went for a try with Quick Reboot + GPS Doctor and got it working without rebooting. :good:
Sounds like I need to try GPS Doctor. I've had good success with AGPS Injector. For me, I spent ages trying to find an app which gave the same results as using the AGPS reset and download in GPS Test, and that did it. Maybe there's some regional variation.
Do those apps just force a download of the links in the gps.conf file?
Have created setups using Tasker which I'll try tomorrow. Also found the app Fast Reboot which does a similar thing to Quick Reboot, so I'll compare the two.
Sent from my HTC Desire HD using xda app-developers app
Yes, could be a regional variation.
Don't really know what the AGPS info download does.
I've used that Fast Reboot Pro program, but didn't do the trick for me.
So I have been having an issue with my SGH t889 for quite some time and have not found a solution to it as of yet....
After rooting my phone and installing JediX20, along with a random Kernal and modem I noticed that my GPS has trouble locating me, locking, and keeping the sat lock. After searching forums and threads I have reverted back to Touchwiz (Stock with root), reverted the modem to MK7, and applied devil dual (for wifi issues with 4.3), I have used FasterGPS to apply a patch on my AGPS, I have used GPS test to see that 7 of the 16 Sats are connecting and disconnecting randomly, and I have cleared, updated AGPS settings... I am out of Ideas as to how to correct my GPS issues and it has gotten to the point that I am close to selling my Note and getting something else... I also remember reverting back to stock non root a while back in hopes of it being fixed....
Anyone have any ideas that I may be missing?
I have precisely the same issue. I upgraded my bootloader so that I could install DN4 which was successful, but now my GPS does not easily lock and if it does lock, my accuracy is approximately 100m and it is guaranteed to drop out often. Ive tried different ROMs, restoring old back ups (prior to this debacle I was using Jedi X Open Source where my GPS would connect effectively instantaneously and rarely drop out), and using seperately GPS Status smd TopNTP to update my my AGPS. Nothing seems to work. My phone is a T889. I've even tried the physical action of cracking open my note 2 and bending up the GPS connection... Nothing works.
Anyone ever fix this?
Anybody tested GPS performance on the latest build 2.0.6i beta)??
Well, gps performance regarding accuracy and TTFF ( Time to first fix) got indeed worse regarding find7 latest KK bases.
My good and old Galaxy Note 2 got better signal accuracy and faster fixes even if it's viewing less satellites then the Find 7.
It could be software related
Perhaps some of you could run some tests using GPS Status app or alike ( run tests always outdoors)
That's the only issue I am having so far with the stock 2.0.6i beta rooted and with unified storage.
Click to expand...
Click to collapse
I remember when I got the Find 7 a couple of months ago, still on JB, GPS performance was great
I am talking about offline gps apps like Sygic and coPilot or GPS tools like GPS Status...
Google Maps I never use ...
I did unify storage, but I don't think it's related.
Anyone?
.
Have you tried using fastergps to switch your ntp server
I always adjust the gps.conf file and stuff.
But the gps chipset on this device always performed well without the need of a-gps.
I re-installed the firmware fresh, with all wipes, which improved things and now gps is usable again, even on Sygic which requires strong gps signals but performance is not as good at it was on JB for instance.
Perhaps implementation is not as good, I will research further
Since I installed the first N OOS build i have issues withmy GPS,
every few seconds it lost the lock and needed a few seconds to reacquire it.
Also sometimes it does not acquire ay lock at all and need a reboot to work again.
As far as I can tell the issue happens with every android N based OxygenOS.
And also with Lineage OS 14.1
I tryed clean flashing booth and it did not change anything.
Now I flashed back to the last MM based community build and it works no lost of GPS signal, reasomably quick fix.
Does any other users also have GPS issues with N based roms on the OP3?
How can I solve the issue or at least find out whaty causing the issues?
Funny you mention this. I use my op3 for my topo maps when I hike and I have found N based roms to cause the gps to require a relocking. Also, the gps is noticeably less accurate.
Anyone got an explanation/solution?
good to herar that I'm not the only one with GPS issues.
Now the question is how to fix those?
I am also facing GPS issues since Oxygen OS 4.x.x, before that I never experienced any.
Sometimes it take 5 to 10 minutes until it finally fetches a GPS Signal but it is still very inaccurate then.
Hopefully the new OOS 4.0.3 update helps, but I doubt it since there is no mention of GPS in the release notes.
I also have this issue, the only resolution I had is to switch on WiFi scanning. After turning it on GPS has been a bit better and locks to the correct location quickly.
Sent from my OnePlus3 using XDA Labs
Ok I found out something new when I set mobile data to 2G GPS works great also on the 4.0.3 OOS ROM.
And since people complained since the start that some have issues with GPS and 4G I guess the issue really is that if some particular frequencies are used GPS suffers. Apparently something changes in N ROMs that makes the issues appear for more users.
Interestingly is that flashing Modem Firmware has no affect so the issue is in a part that is in the android kernel itself.
https://forum.xda-developers.com/oneplus-3/help/gps-issues-t3416544
Every time I turn location on, I get the "improve location accuracy?" prompt. Every single time.
How can I stop this? Never had this before, usually goes away after one enable.
Another strange thing sometimes the GPS cant get a lock and the only way to fix it is to restart the phone.
the bew Open Beta 12 based on Android 7.1.1 seams to have resolved my GPS issue really strange
Hi - I also do have heavy problems with losses of GPS- signal at the OP3 since months. Especially while using LTE the GPS gets often lost. Since 5 weeks I am working/struggeling with the OP-support a lot - but no changes till now. @David: "Open Beta 12" has solved your problems?? what is this concrete?
i do have the problem...... from 4.0.2 updated to 4.1.1 and now Beta13, the problem still there~!!
On my phone gps signal gets lost always at the same location and when lte is active. On any other location gps works perfect. When i disable lte everything works perfect. This has happend on any rom. I think this is a hardware problem and can not be resolved. The only solution is disabling lte or using a different provider. I am using o2 in Germany, the problem does not happen with other Providers. Different Providers have different frequencies, this might be the difference between o2 and the other providers.
I do have O2-LTE too and it is "under suspicion" in Germany. But in February I was for 4 weeks in Florida and travelled a lot using navigation. The provider was AT&T - and I had very often losses of GPS-signal too.
I can confirm, that the problem happens with different ROM, but not at only one location - it happens everywhere.
But what can we do? OnePlus is working at this problem since months without a solution - and the customer with this bug really have to accept it "for zero"??
Hello @OPFan , did you get help from the support? Or could you resolve the problem?
3 months of contact - lots of bubbles - no solution
try downloading the "Gps Test "app then enable GPS and open the app and click on the 3 dots > AGPS > Clear and update
cheptii said:
try downloading the "Gps Test "app then enable GPS and open the app and click on the 3 dots > AGPS > Clear and update
Click to expand...
Click to collapse
this was one of the thousands of tryings - but also with zero effect
I'm having a lot of GPS issues since I've been using OPO or OP3.
I sold my OPO because of the bad GPS. Now I have the OP3.
On both phones I used custom ROM Cyanogenmod.
I sometimes had bad GPS reception, but this was fixed under Cyanogenmod doing this: Disable GPS, Disable Data, Enable Airplane mode, Disable Airplane mode, Enable Data, Enable GPS, then wait for GPS reception and start navi app.
Last week I flashed my OP3 with another ROM (AOSP) but this only made it worse!
I use my phone as car navigation daily, and while navigating, it finds GPS and it loses GPS every 5 seconds (using WAZE app). It's incredibly annoying. Using AGPS or any other "fix" found online doesn't fix the problem.
When using another navigation app, like Google nav, it's works better (because Google also uses LTE). Clearing cache or unistalling and reinstalling the WAZE app doesn't fix the problem.
Conclusion:
It is totally not related to your provider because they are working on fixed standard frequencies and I've been using the same provider on both phones.
It's also not related to the hardware only, because it was working on my OP3 under Cyanogenmod. So it should be related to the hardware driver included in the ROM.
Maybe this gives anyone an idea?
---------- Post added at 07:52 ---------- Previous post was at 07:45 ----------
Found something here that might help:
https://forum.xda-developers.com/showpost.php?p=73681689&postcount=165
I have also GPS issues. It works well in gmaps, but it is unusable in Waze.
I thought AOSPA was causing it so I cleanflashed latest OB, but GPS issues are present there too