I'm having an issue with any application using the GPS in the new CM9 mod, it seems the GPS connects for a few minutes, but then it loses connection and searches for a GPS signal for a few minutes before it finds me again. This constantly happens even after a re-install, restart, etc. it does the same thing.
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Hi
I'm developing a GPS application to assist devices with onboard GPS chips (eg. Trinity) to obtain a fix faster.
My application works fine thus far, however I have a question in regards to TomTom. Every other application works instantly, ie. they report the fix obtained as "Valid" and start displaying the location on their GUI almost instantly.. EXCEPT for Tomtom.
Does anyone know what TomTom looks for other than a 2d/3d fix? It detects its receiving information yet hangs on "Lost GPS signal since xxx seconds" for around 2-4 minutes and THEN it starts working fine.
I'm confused as to why this is only happening with TomTom so any information you guys have would be greatly appreciated.
I'm not sure what your application does to assist, or which other applications work fine. But I'll take a guess. Tom-Tom is a stand alone GPS app and the others use assited GPS?
Satellites transmit ephemeris data, data about the orbit of the GPS satellites, every 30 seconds. Tom-tom must lock on to the salelliites and wait a minium of 30 seconds to recieve this data. If the other GPS applications use assisted GPS, they get help from a location based server (LBS) run by the cellular provider. The LBS sends the ephemeris data and other data to help the GPS lock onto the satellites quickly, so the GPS doesn't have to wait.
I have the Wing with bluetooth gps but it works well for a while and sometimes it loses connection with the gps and I have to softreset to get working again. I am wondering if this is the same probkem causing this is related to the wifi not loading a web page after while??? Can some please help?
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...
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.
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