Develop Bugs

Gingervillain GPS problem

Hi,
I am having trouble with GPS on my desire since installing gingervillain. On both versions 1.4 and 1.5 GPS just doesn't seem to be working at all. I've tried a factory reset from the recovery menu and have tried re-applying the zip file but with no luck. GPS is enabled but I don't even get an icon on the status bar at the top when it is supposed to be searching for a signal.
Thanks,
Chris

Reach for the skies
Go outside of your house. Point your phone to the sky. Your position should should showing on your GPS.
Or it could be the program itself? Try different gps using apps like maps, facebook places etc etc.
Also do post what radio you're currently using on your phone. It could help people diagnose your problem better.

Tried outside and using gpstest off the market with no luck. I don't usually have any problem with gps inside my house anyway. I don't even get an icon in the status bar at the top it's like it's not working at all. And before anyone says yes it is switched on! My current version is:
32.49.00.32U_5.11.05.27
Any help would be much appreciated!

12078215 said:
Tried outside and using gpstest off the market with no luck. I don't usually have any problem with gps inside my house anyway. I don't even get an icon in the status bar at the top it's like it's not working at all. And before anyone says yes it is switched on! My current version is:
32.49.00.32U_5.11.05.27
Any help would be much appreciated!
Click to expand...
Click to collapse
You must have the worlds strongest GPS in your desire. In normal ones, you need to be outside with the phone pretty much able to see the sky. On top of that, ideally it will need to be a clear sky.
Turn on GPS, open up Google Maps / your Navigation software (while outside). On my phone it only used to show the GPS icon in the task bar when a program was running that could use it.
Alternatively download GPS tools from the market (I forget the exact name).
If your GPS is indeed stuffed, take your phone back (if its under warrantee).
My GPS died on my phone. Completely. And before that it kept rebooting the phone. Had to take it back.

mr_norris said:
Alternatively download GPS tools from the market (I forget the exact name)
Click to expand...
Click to collapse
Try gps status on the market

Same here too
Hi
very interested in this thread as my GPS worked fine until I installed Gingervillain 1.4 last week and then updating to 1.5 on Friday
Radio : 32.48.00.32U_5.11.05.14

I downgraded to GV 1.0 and my GPS was working ok again. I heard there was a known GPS problem fixed in GV 1.6 so I upgraded but the problem returned unfortunately. Any ideas?

Update the kernel with Villain set up, it cured my GPS problem.

GVChangelog:
Version 1.6:
* Fixed GPS problem (Thanks to CM Team)
+ kernel update defo works.

faz1964 said:
Update the kernel with Villain set up, it cured my GPS problem.
Click to expand...
Click to collapse
Hi,
Could you advise how I go about that? I thought the Kernel was updated as part of the gingervillain setup anyway?

Well I've had more fun with this! I just couldn't get GPS working on anything other than GV 1.0. I completely wiped my SD card and re-formatted the EXT3 partition. I then installed the stock RUU at which point GPS was predictably working. I then went through the flashing process of GV 1.6 and GPS was working this time. It was fine for a week or so but then the GPS stopped working again! I'm thinking it must be something to do with the dalvik cache now, that's the only reason I can think of for the GPS to stop working. I'm running out of patience with GV now so does anyone have suggestions for another stable 2.3 ROM I can move onto?
Thanks again,
Chris

GPS not working in Google Maps

*Update* January 7, 2012:
After reinstalling the Facebook for android app, I noticed that the problem with the GPS came back with google maps. After a few reboots, I've found that the Facebook app somehow messes with the GPS so that Google maps cannot use it. This is solved either by uninstalling, or never opening the Facebook app, as well as a reboot after every time the Facebook app is used.
Hopefully this will get rid of some headaches people are having with their GPS problems.
December 9, 2011:
Since the new update with Google maps, my phone hasn't been able to keep a GPS signal. When I open up Google maps, the GPS icon starts blinking, and then connects and everything works fine for about 2-3 seconds. After that the icon dissapears, and it goes to what I'm assuming is the triangulation of the cell phone towers, which is much less accurate. Anybody else having this problem? I'm running CM7.1 and everything was working fine until I updated the Google maps app itself. Thanks in advance.
Sent from my ADR6300 using XDA App

+1.. same issue:
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. Sense ROMs seem to work fine with the GPS.
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.
Anyone know of any fixes?

hmm haven't tried it yet. I just switched back to sky raider (omfg froyo!) from CM7.1 because of the constant force closes and freezes with CM. I'm downloading Inc Deck right now. Will let you know how it works on that, later tonight.
But can't you just uninstall the new updated Maps, and revert to an older version?

I've actually tried different GPS mapping applications, GPS testing apps, and the problem remains. :-/

Well I just installed Inc Deck (AOSP) and Navigation/Maps (6.01) seems to work fine. It locked on nearly instantly, and I drove around several blockes (2-3 minutes) and had no issues with losing GPS lock. Although I was having a problem of zooming into Maps (wouldn't get closer than 2000 feet on scale bar, the scale bar is an addtional lab add-on). Although it seems to be zooming in completely now...I will try to remember to keep testing and give feedback.
Maybe try clearing caches?
update: I've used the newest Google Navigation (6.01) probably 4-5 times in the last 24 hours, I have not lost GPS signal once. Total time running Navigation is over an hour. This is on AOSP Inc-Deck 1.3 stable and latest Incredikernel. So it must not be all AOSP ROMs that are affected.

I've reverted back to the previous version of Google Maps for now. After trying all of the above mentioned tips, nothing seemed to work. Thanks for aall of the help though
Sent from my ADR6300 using XDA App

Added update to original post including more information on the problem.
Sent from my ADR6300 using XDA App

I "fixed" this by installing LBE Privacy Guard and blocking Facebook's GPS access. The app force closes when using the CM7 permissions management to revoke FB's GPS permissions, but works fine with LBE. Now, I can leave the GPS enabled, and use google maps & facebook without the GPS getting hung up.

Awesome, I'll do just that. Thanks for the input
Sent from my ADR6300 using XDA App

You could try changing your gps server. Go to /etc/gps.conf and open it with a text editor. Make it look like this:
Code:
NTP_SERVER=0.us.pool.ntp.org XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin
SUPL_HOST=supl.google.com SUPL_PORT=7276
The first line NTP_SERVER should be all you need to change, the 0 can also be a 1, 2, or 3. Also add supl info if not there already.

GPS locking up

I was just wondering if anybody has been having this issue. After successfully locking onto satellites for GPS for navigation, if I turn off maps when I reach my destination, it requires a reboot until I can use GPS again, it only updates once every few minutes. Haven't done much testing on it since I was on a highway going 80 when I noticed
Sent from my Nexus 7 using Tapatalk HD

Flippy125 said:
I was just wondering if anybody has been having this issue. After successfully locking onto satellites for GPS for navigation, if I turn off maps when I reach my destination, it requires a reboot until I can use GPS again, it only updates once every few minutes. Haven't done much testing on it since I was on a highway going 80 when I noticed
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
Same issue here. I think its wide spread but only a few of us use the GPS function
Sent from my Nexus 7 using xda app-developers app

yup
Happened when i pushed the second update (twice). I'm hoping for a fix soon.

Same here!

Same here... even exchanged for a new device from 16 to 32gb model and still the same issue. Works for about 10-30mins then locks me in the location completely.
Moderator should merge threads.... issue is duped on XDA

Happened to me while playing ingress, I had to reboot
Sent from my Nexus 7 using Tapatalk 4 Beta

This seems to be a legitimate issue. Has anyone reported the bug to Google?

Vanhoud said:
Happened to me while playing ingress, I had to reboot
Sent from my Nexus 7 using Tapatalk 4 Beta
Click to expand...
Click to collapse
HERES THE FIX!!
I had this very same issue, and found a resolution for it (can't remember the source now)
After taking both system updates and rebooting, it is necessary to hard reset the device. Upon the initial boot, you must leave all options checked but the following -
Backup and Restore options (you can turn on after the initial setup is finished from options)
there are three location options, one being new to 4.3 and what I believe to cause this - it mentions the ability for location to be grabbed when the screen is off. You must diable this option.
Finish installation, and then you will have properly working GPS.
Here's how I'm quantifying that - before when I was in the exact same boat as those in this thread, I would open GPS test, and I could see 7 or 8 sats in view, but it wouldn't lock. Or if it did, it would work for a short period of time, and then bomb out. I drove around the city for a few hours yesterday using the GPS so we're near and dear now to each other.
After doing all this - you will IMMEDIATELY see 20 sats available upon launching gps test and then almost immediately get full lock and keep it that way.
Was a pain that I had to clear everything, but now GPS is working as I would expect it, and I've not had any issues getting full lock, even in my basement.
Hope this helps!!

I tried to duplicate the problem you describe, but was not able to.
Here is what I did:
- Launch Maps application for the first time.
- Accepted the terms of service and enabled location services access, including Wi-Fi.
- Got location via Wi-Fi, then pinpointed the location via GPS.
- Back to home screen -> Settings -> Apps.
- Maps was not running, but I went into Maps under the all apps view and force closed it.
- Back to home screen.
- Launch the Maps application again and I had an accurate location via GPS in less than 10 seconds.
I repeated this procedure again with the same results. I then disabled Wi-Fi location assistance so that only GPS was available. Repeating the tests twice again and I still see the same results. I have no problems getting a good location lock quickly.
I am running the stock firmware, build JSS15J, and Maps v7.0.1.
I am happy to test again if somebody having this problem can provide specific information regarding their test procedures and results.

mrc13an said:
I tried to duplicate the problem you describe, but was not able to.
Here is what I did:
- Launch Maps application for the first time.
- Accepted the terms of service and enabled location services access, including Wi-Fi.
- Got location via Wi-Fi, then pinpointed the location via GPS.
- Back to home screen -> Settings -> Apps.
- Maps was not running, but I went into Maps under the all apps view and force closed it.
- Back to home screen.
- Launch the Maps application again and I had an accurate location via GPS in less than 10 seconds.
I repeated this procedure again with the same results. I then disabled Wi-Fi location assistance so that only GPS was available. Repeating the tests twice again and I still see the same results. I have no problems getting a good location lock quickly.
I am running the stock firmware, build JSS15J, and Maps v7.0.1.
I am happy to test again if somebody having this problem can provide specific information regarding their test procedures and results.
Click to expand...
Click to collapse
It was showing an accurate location in Maps until I started to drive. Once I sped up, it showed me where I was ~15 miles back
Sent from my Nexus 4 using Tapatalk 2

kmartburrito said:
HERES THE FIX!!
I had this very same issue, and found a resolution for it (can't remember the source now)
After taking both system updates and rebooting, it is necessary to hard reset the device. Upon the initial boot, you must leave all options checked but the following -
Backup and Restore options (you can turn on after the initial setup is finished from options)
there are three location options, one being new to 4.3 and what I believe to cause this - it mentions the ability for location to be grabbed when the screen is off. You must diable this option.
Finish installation, and then you will have properly working GPS.
Here's how I'm quantifying that - before when I was in the exact same boat as those in this thread, I would open GPS test, and I could see 7 or 8 sats in view, but it wouldn't lock. Or if it did, it would work for a short period of time, and then bomb out. I drove around the city for a few hours yesterday using the GPS so we're near and dear now to each other.
After doing all this - you will IMMEDIATELY see 20 sats available upon launching gps test and then almost immediately get full lock and keep it that way.
Was a pain that I had to clear everything, but now GPS is working as I would expect it, and I've not had any issues getting full lock, even in my basement.
Hope this helps!!
Click to expand...
Click to collapse
Thanks, I'll try this when I get back to a decent data connection
Sent from my Nexus 4 using Tapatalk 2

I was the source #1, AND #2 although I thought this fixed it, the issue came back! Its like a memory error with the gps driver and or buffer with a overstack flow of data and it either crashes it so you loose gps functions, or locks it up so its searching but never locks. Seems as if its software and android 4.3 or google system service or framework issues. Same problem with older S4 chipsets and jellybean. Google fixed that by updating system files for jelly bean 4.1.2 and 4.2.x. Also the new maps could be the culprit as well since it was updated to a completely new version.
kmartburrito said:
HERES THE FIX!!
I had this very same issue, and found a resolution for it (can't remember the source now)
After taking both system updates and rebooting, it is necessary to hard reset the device. Upon the initial boot, you must leave all options checked but the following -
Backup and Restore options (you can turn on after the initial setup is finished from options)
there are three location options, one being new to 4.3 and what I believe to cause this - it mentions the ability for location to be grabbed when the screen is off. You must diable this option.
Finish installation, and then you will have properly working GPS.
Here's how I'm quantifying that - before when I was in the exact same boat as those in this thread, I would open GPS test, and I could see 7 or 8 sats in view, but it wouldn't lock. Or if it did, it would work for a short period of time, and then bomb out. I drove around the city for a few hours yesterday using the GPS so we're near and dear now to each other.
After doing all this - you will IMMEDIATELY see 20 sats available upon launching gps test and then almost immediately get full lock and keep it that way.
Was a pain that I had to clear everything, but now GPS is working as I would expect it, and I've not had any issues getting full lock, even in my basement.
Hope this helps!!
Click to expand...
Click to collapse

kmartburrito said:
I had this very same issue, and found a resolution for it (can't remember the source now)
After taking both system updates and rebooting, it is necessary to hard reset the device. Upon the initial boot, you must leave all options checked but the following -
Backup and Restore options (you can turn on after the initial setup is finished from options)
there are three location options, one being new to 4.3 and what I believe to cause this - it mentions the ability for location to be grabbed when the screen is off. You must diable this option.
Click to expand...
Click to collapse
I had done a hard reset as well after applying the initial updates. I left backup enabled but disabled restore during the setup process and disabled all three location features as well.

skyhawk21 said:
I was the source #1, AND #2 although I thought this fixed it, the issue came back! Its like a memory error with the gps driver and or buffer with a overstack flow of data and it either crashes it so you loose gps functions, or locks it up so its searching but never locks. Seems as if its software and android 4.3 or google system service or framework issues. Same problem with older S4 chipsets and jellybean. Google fixed that by updating system files for jelly bean 4.1.2 and 4.2.x. Also the new maps could be the culprit as well since it was updated to a completely new version.
Click to expand...
Click to collapse
Yes you were, I remember your username now. Thanks skyhawk21! You resolved this for me. I used my N7 for a few hours in the car yesterday, and it was spotty and crappy in clear weather for a while, I did a reset in the car like you mentioned, and everything now has been working solidly since. Thanks again.
The last part is sad to hear. I however have used it for several hours straight with no issues, so I'm hoping it stays strong.

I am confused, so should I reset mm y tablet? Will that actually fix GPS?
Sent from my Nexus 7 using xda app-developers app

It will fix it for awhile but the issues creeps back up.... good luck this new nexus 7 is turning to be into a nightmare, flaky gps and flaky touch screen issues on two fo them now!

As long as you only use google maps it seems to work ok.
Once you start using other GPS apps (GPS Test, Gas Buddy, Google Earth) the problem shows up eventually.
It might have to do with multiple apps accessing GPS, but that is just a guess.
I wouldn't bother factory resetting (for the N7 2013 GPS issue). Reboot has always allowed the unit to get locks again (for me) It feels like an OS or driver problem.

I found a posting on AndroidCentral about the same issue. According to one of the posters, the issue is known by Google and an OTA should be pushed out soon for it. I just hope its true because I'm pretty dependant on my N7 for finding my way around town
http://forums.androidcentral.com/google-nexus-7-tablet-2013/300566-gps-problems-nexus-7-2013-a.html
Sent from my Nexus 4 using Tapatalk 2

I must be lucky, I've used it for several more hours, and still rock solid GPS at all times.

hmmmmm gps wasn't locking earlier then decided to do a soft reset, now it's working. I just have to try it later when i drive home and see what's up.

Slim and fast rom

Hi to all
i'm using a defy+ only as GPS navigation. I'm also not using any simcard, just GPS and WiFI.
Do you know any stripped down rom with nothing installed except wifi and gps? I'm looking for a rom with maximum battery savings and quicker boot time.
Everything else is unneded.

ciripicchio123 said:
Hi to all
i'm using a defy+ only as GPS navigation. I'm also not using any simcard, just GPS and WiFI.
Do you know any stripped down rom with nothing installed except wifi and gps? I'm looking for a rom with maximum battery savings and quicker boot time.
Everything else is unneded.
Click to expand...
Click to collapse
You could try Maniac103's build of CM7.2. (It's available from his GitHub, and a slightly newer version is posted here.)
CM7.2 is one of the fastest and most stable roms for the Defy, and Maniac103's version has an LTO data download feature that helps a lot with GPS. If you enable that feature (it's either in settings or in the Defy Parts app, I don't remember exactly where), the phone will download the satellite Long Term Orbit data whenever you're connected to wifi. This LTO data is valid for either 7 days or 30 days (depending on which option you choose), and it helps the GPS to get a fix very quickly, even when you're offline. That's one of the few features I really miss from CM7.

Proverbs2 said:
You could try Maniac103's build of CM7.2. (It's available from his GitHub, and a slightly newer version is posted here.)
CM7.2 is one of the fastest and most stable roms for the Defy, and Maniac103's version has an LTO data download feature that helps a lot with GPS. If you enable that feature (it's either in settings or in the Defy Parts app, I don't remember exactly where), the phone will download the satellite Long Term Orbit data whenever you're connected to wifi. This LTO data is valid for either 7 days or 30 days (depending on which option you choose), and it helps the GPS to get a fix very quickly, even when you're offline. That's one of the few features I really miss from CM7.
Click to expand...
Click to collapse
Thank you for the response. My defy+ is actually on charging, when full charge i'l ltry to flash that rom.
So, with LTO data for 30 days, I can use WiFI (or any network connection) once in 30 days and getting fast fix for GPS?

ciripicchio123 said:
Thank you for the response. My defy+ is actually on charging, when full charge i'l ltry to flash that rom.
So, with LTO data for 30 days, I can use WiFI (or any network connection) once in 30 days and getting fast fix for GPS?
Click to expand...
Click to collapse
Ok, i've installed CM7. How can I check for LTO settings ?

ciripicchio123 said:
Ok, i've installed CM7. How can I check for LTO settings ?
Click to expand...
Click to collapse
I'm not using CM7 anymore (I've updated my Defy to Android 4.4 SlimKat), and I don't remember exactly where the LTO setting was. I think it was under Settings > Device settings, or something like that.
ciripicchio123 said:
So, with LTO data for 30 days, I can use WiFI (or any network connection) once in 30 days and getting fast fix for GPS?
Click to expand...
Click to collapse
Yes, you should get a faster GPS fix if you connect to wifi every 30 days. I believe it only downloads when connected with wifi, not a cellular data connection.

Proverbs2 said:
I'm not using CM7 anymore (I've updated my Defy to Android 4.4 SlimKat), and I don't remember exactly where the LTO setting was. I think it was under Settings > Device settings, or something like that.
Click to expand...
Click to collapse
Found it.
Yes, you should get a faster GPS fix if you connect to wifi every 30 days. I believe it only downloads when connected with wifi, not a cellular data connection.
Click to expand...
Click to collapse
Let me check. Before flashing a custom ROM, GPS fix in my actual location wasen't done in 10 minutes.
Now i've downloaded a monthly LTO data, let me see if fix is quicker.
EDIT: any way to greatly speed up the boot time? Almost 30 seconds stuck in motorola logo....

ciripicchio123 said:
Let me check. Before flashing a custom ROM, GPS fix in my actual location wasen't done in 10 minutes.
Now i've downloaded a monthly LTO data, let me see if fix is quicker.
Click to expand...
Click to collapse
Still no improvements, even with A-GPS and LTO data downloaded.
No fix in 5 minutes and just 2 sat found (as shown by GPS Status app). Same location with Galaxy S4 will result in a perfect fix in a couple of seconds.

ciripicchio123 said:
Still no improvements, even with A-GPS and LTO data downloaded.
No fix in 5 minutes and just 2 sat found (as shown by GPS Status app). Same location with Galaxy S4 will result in a perfect fix in a couple of seconds.
Click to expand...
Click to collapse
The first GPS fix always takes a while, unless you have an active data connection for A-GPS, which uses cellular towers and/or wifi to help determine your location. (Also, the Galaxy S4 has much faster hardware, but I'd guess that if you reboot your Galaxy S4 in airplane mode, and then try to get a GPS fix, it will take more than a few seconds.)
Make sure that the phone is outdoors under open sky, and that it is stationary while the GPS looks for the first fix. After that, subsequent fixes should be much faster, at least until the next reboot.

Proverbs2 said:
The first GPS fix always takes a while, unless you have an active data connection for A-GPS, which uses cellular towers and/or wifi to help determine your location. (Also, the Galaxy S4 has much faster hardware, but I'd guess that if you reboot your Galaxy S4 in airplane mode, and then try to get a GPS fix, it will take more than a few seconds.)
Make sure that the phone is outdoors under open sky, and that it is stationary while the GPS looks for the first fix. After that, subsequent fixes should be much faster, at least until the next reboot.
Click to expand...
Click to collapse
Is not an hardware issue. Defy doesn't see satellites. I've tried with S4 in airplane mode and fix is almost istant

ciripicchio123 said:
Is not an hardware issue. Defy doesn't see satellites. I've tried with S4 in airplane mode and fix is almost istant
Click to expand...
Click to collapse
Did you reboot the S4 in airplane mode, then try? That's pretty impressive if it can really get a cold-start fix that fast.
For me, a cold-start fix on the Defy usually takes a couple of minutes without a data connection, and sometimes it takes a minute or so before it even begins picking up satellites, so I guess that's normal for this hardware. On CM7.2 with the LTO data, though, it seemed a lot faster: a cold-start fix usually only took 30 seconds or so under a clear sky.

Proverbs2 said:
For me, a cold-start fix on the Defy usually takes a couple of minutes without a data connection, and sometimes it takes a minute or so before it even begins picking up satellites, so I guess that's normal for this hardware. On CM7.2 with the LTO data, though, it seemed a lot faster: a cold-start fix usually only took 30 seconds or so under a clear sky.
Click to expand...
Click to collapse
Even with LTO and a A-GPS data downloaded, gps fix requires many, many minutes.

After successul fix, subsequent fixes are faster even after a cold reboot (i don't know why, but is ok)
How can I decrease the boot time ?

ciripicchio123 said:
After successul fix, subsequent fixes are faster even after a cold reboot (i don't know why, but is ok)
Click to expand...
Click to collapse
Great! :good:
How can I decrease the boot time ?
Click to expand...
Click to collapse
CM7 boots about as quickly as any rom for the Defy, so you may not be able to make much improvement there. You could try uninstalling/disabling system apps that run at startup; that might help a little. Overclocking from the bootmenu will also help.

Proverbs2 said:
CM7 boots about as quickly as any rom for the Defy, so you may not be able to make much improvement there. You could try uninstalling/disabling system apps that run at startup; that might help a little. Overclocking from the bootmenu will also help.
Click to expand...
Click to collapse
could you tell me how to uninstall system apps and check what is starting at boot time ?

ciripicchio123 said:
could you tell me how to uninstall system apps and check what is starting at boot time ?
Click to expand...
Click to collapse
You could use an app like this to see what applications and processes are running after a fresh reboot.
You can disable system apps using the android settings menu. I don't remember exactly how to do it on CM7, but on Android 4.4 you can manage apps under Settings > Apps > All. (You can also access the app manager by hitting the menu button > Manage apps.) Select the system app you want to disable, and click the "disable" button. I think the procedure was similar on CM7.
Alternatively, you can just delete a system app using a root-enabled file explorer like ES File Explorer. In ES File Explorer, go to Tools and enable the "Root Explorer" option, then navigate to the system/app directory of your phone's internal memory and delete whatever apks you don't want. (Be careful not to delete an app if you don't know what it does, or you might cause more problems. If you run into errors or your phone is unable to boot after deleting system apps, just re-flash the CM7 zip from recovery.)

Omnirom
ciripicchio123 said:
Hi to all
i'm using a defy+ only as GPS navigation. I'm also not using any simcard, just GPS and WiFI.
Do you know any stripped down rom with nothing installed except wifi and gps? I'm looking for a rom with maximum battery savings and quicker boot time.
Everything else is unneded.
Click to expand...
Click to collapse
Hi, I'm also using my Defy+ for offline GPS (without sim, too)
Currently running Omnirom builds by Struq and Kayant (look in the "Omnirom for Defy" thread).
- Boot time is approx. 1'30, but no big deal for me (I'm not sure you will find custom roms with really faster boot times?)
- GPS hooking up takes some minutes (~maybe 3-5 mins) but I'm not even sure if I'm using a gps fix or not!
- battery usage : GPS & wifi are the most battery hungry components anyway
- I don't use Gapps , so that would qualify for "stripped down", only F-droid repository for apps, and the great OsmAnd for GPS nav :good:

Hello,
I have 2 defy "MB525 green lens" phones. On one of them (bought new) GPS works very well, 10-12 sattelittes at all time, first fix in cca 4 minutes withouth data connection. The only thing I've noticed is that the GPS really hates to "cold-start" when the phone is moving, i.e. inside a car. After fix, the signal strength ans sattelite count is OK.
On the second defy, GPS hardly sees a satellite. But the phone is from a hill climber, and I've got the phone with a smashed screen, the guy told me the phone falled some 30 m before hitting the ground... On opening it up I've noticed the PCB is chipped on one of the upper corners. New digitizer and everything else works....except for that GPS.
Perhaps the GPS chip is the most fragile component inside the phone... I don't know. But I think the software is not the cause here.

GPS Issues on N based roms, please help

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