GPS signal lost when mobile data is enabled - LineageOS News & Discussion

HTC ONE M8
Custom ROM android 9 lineage OS 16.0
I have noticed problems with the GPS on my device. Google Maps and Waze many times the GPS signal drops and can not determine the location.
In my test I could find that the GPS problem happens when the Mobile Data are active. Just disabling mobile data and GPS back to work with good accuracy and even on rainy days.
If I connected to WiFi and mobile data is disabled GPS working normally.
I researched on the Internet and can not find a solution to the problem. Already restored the network connections and even restored the factory settings.
Please help me... What is the problem ?

Related

[Q] GPS hot fix technology exist on android??

Hi guys,
I have some trouble with GPS, it's take very very very long time to establish appropriate connection to some satellites. On Windows mobile there was app which download data about positions satellites from INTERNET and speed up the connection process. Then have exist some this solution for android platform? and one more thing, have some soft which can show satellites connected etc (not need any navigation or compass just some thing for verify)..
Any ideas?
Volis said:
Hi guys,
I have some trouble with GPS, it's take very very very long time to establish appropriate connection to some satellites. On Windows mobile there was app which download data about positions satellites from INTERNET and speed up the connection process. Then have exist some this solution for android platform? and one more thing, have some soft which can show satellites connected etc (not need any navigation or compass just some thing for verify)..
Any ideas?
Click to expand...
Click to collapse
Search for "gps.config"!
Download tis app called gps status...you can download satellites thru its settings or you can reset ur gps data in it...downloading agps data dramatically improves locking speed..check it out...hope it helps
Setings> GPS&Sensors > Auto-download agps data
I am having issues with some builds sometimes to get a fix.
Some android builds make WM GPS not to fix anymore even. The only way to make it work on WM again is to re-flash your radio and not run android again (Android seems to do something to the GPS that makes it stop working on WM).
Perhaps I am wrong but this is my observation.
nuclearfissure said:
Download tis app called gps status...you can download satellites thru its settings or you can reset ur gps data in it...downloading agps data dramatically improves locking speed..check it out...hope it helps
Setings> GPS&Sensors > Auto-download agps data
Click to expand...
Click to collapse
Yep looks that..
Thanks, it worked very well for me.
I have also raised this question previously.
With GPS's there are two additional technologies that help with speeding up a lock.
The first often known as QuickGPS. Normally when you GPS finally find its first satellite it needs to download a lot of satellite information including where all the other satellites are in relationship. This can take a minute or so and if it is interrupted will need to restart. Thats why you get a quicker lock when stationary versus moving. What QuickGPS does is download this information via the internet and store it locally.
The second is A-GPS. When your GPS starts it is listening trying to find anyone of over 30 satellites. This can take time. Once it find one satellite it then needs to repeat for another 2 before being able to identify where it is and what other satellites are in the area (From Step 1). What A-GPS does is find out where you are via cell sites etc. Once it has an approx location it then refers to the QuickGPS data to then workout what satellites are in the area. In then proceeds to only try to lock on local ones which is a lot quicker.
All the fixes for the HD2 gps relate to updating the NTP server setting in the GPS conf file. The current setting is fine however refers to an american time server. End of the day it is still going to give you a time sync to within a few milliseconds. Refering to a local NTP (Time Server) will give the exact same data.
Waste of time.
I believe the slow GPS lock is due to one of these technogies not working. I suspect it is a-GPS however have yet to confirm either way that the GPD data is being downloaded and saved in the right place.
Hope this helps.
Yes, I thinking primary about the fist option QuickGPS.. I was able on my HD2 wit win get the GPS lock for 7-10 satelelites in let then 30 second.. without that 5-10 minutes, then I thing is very userfull to have it somehow working on android too..

[Q] GPS Signal loss when data connection is on

Hello,
I have a strange issue with my HD2.
If I turn on data connection on, I can't get a steady GPS fix. I loose it all the time during several minutes.
If I turn off data connection, I don't loose GPS signal, but I can't use Google Navigation, Waze, ABonEntendeur... and all other tools which needs data connection.
I'm using Tytung's GPS libraries (V2.1 RPC) on a Runnymede version.
I'm using the marc's 0.1.8 kernel with MagLoader
I tried and turned on Wifi, Data and GPS. As long as I was connected to Wifi hotpost, I didn't loose the GPS signal. I went outdoor, I lost Wifi signal, data connection turned on, I lost GPS signal and didn't get it anymore !
Where should I start from to troubleshoot that issue ?
Same here, with TBD Sense 3.5 and also with Dorimanx latest CM7.2 ROM.
Issue seems to be unfixed atm.
I finally installed a Cyanogen 9 ROM...

[Q] Data not working, GPS trying to get a lock

I'm having an issue that just sprung up today. My mobile data is not working but shows as connected (under About Phone -> Status it shows as connected to HSPA and has an IP address). In addition, the phone is constantly searching for a GPS lock even after a fresh reboot. If I walk outside so that the phone can get a GPS lock data starts working for a short time, but once I'm back inside (still 5 bars of signal) data stops working again. It is not signal related as if I disable GPS and go outside the phone still does not work.
I am on T-Mobile and have tried the SIM in another phone which is able to connect with no issues. Any idea what could be going on that the phone is unable to use mobile data if I do not have a GPS lock? SMS/voice works fine at all times.
Edit: Also, the signal indicator will occasionally turn blue like it has a connection to Google services, but I still cannot access any web pages or get to any e-mail that is not already cached.

[Q] GPS restart using Tasker

My AT&T Note 3 started to have GPS problems (likely when switching from 3G/4G/LTE during drive)
While there seems to be no good fix for this issue, I've found that simply turning off GPS and on will restore GPS instantly.
So I thought I'd use Tasker to do this:
whenever "GPS Signal LOST" restart GPS.
Problem is I'm not sure if there is a function/variable to flag "GPS signal lost".
Can anyone advise?
Thanks

[Q]GPS not working even on high accuracy :( Help me!

Guys help me I am having some issues with my GPS, for example when using Google Maps or Waze, it says: no GPS not showing approximate :crying:
can someone help me? much appreciate it
also to mention I have turned on my GPS on high accuracy but no results. :crying::crying:
am running blisspop 5.1.1/v4
Try performing the following suggestions:
Turn on Android's Assisted GPS feature (available on some devices under Settings > Location & Security). Both Use Wireless Networks and Use GPS Satellites should be checked.
Reset the AGPS data in your device using GPS Status & Toolbox or similar app from Google Play store.
Try a stock ROM too, if it works with stock, it's that ROM causing the problem

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