Related
Even if I put the phone on the level surface, the compass is very unstable, value changes very quickly. This is very annoying using streets view (compass mode) in Google Maps or Google Sky Map - if the phone is horizontally, the map rotates both directions very fast. Any fix for this?
I'd think that the sensitivity is set too high, I don't think this is something you can change from within Google Maps.
Have you tried downloading a compass app from the Market and seeing if the results are them same? Most apps will have some settings you can change to see where the problem lies.
Yes, I've tried... Same problem in Ulysse Gizmos - pitch and roll are very unstable
Just downloaded that app, the compass works fine, but my pitch and roll are way off. Not quite fluctuating wildly, but very inaccurate.
Have you tried calibrating the compass by waving it in a figure of 8 horizontally.
Of course I did but is the same
I have exactly the same. But annoyingly I also have that it places me consistently 10 to 40 meters off.......
Really annoying! If anyone has a solution please let me know!
Is there anyone who use defy GPS daily? Can you share which rom or any GPS tweak to make defy more accurate and responsive for navigation?
I have been testing defy GPS, it seems like its rather not accurate to pinpoint location. Accuracy show 4-9m, but often real position is off by 30-200m. For navigation, it's response time rather slow plus the inaccuracy makes it not reliable. My old windows mobile P3600 gives precise position when put beside defy while navigating.
For info, I have disable wifi in location setting. I know I have successfully download supl data. With data enabled, I can lock under 10 sec.
This inaccuracy had been a problem for CM7. I have tested stock froyo and gingerbread, and problem still there.
So, can anyone help here? Do you have the same problem, if not please share your rom version or tweak..
I've used mine a lot for gps, i just make sure to download agps data with an app called GPS test as soon as i can, then if i'm not moving too much from where i stopped gps for the last time it takes very little to lock.
I'm on CM7 and it never disappointed me in Italy, Germany, Netherlands, Belgium and France.
Any GPS fix i've tried did nothing good for me.
My defy lock fast. What bothers me is the accuracy.
Google maps shows accuracy 4-9m, but real position is off sometimes by 200m.
Sometimes it correct itself, other time, even if I waited for a few minutes, it didn't show my real position.
And I'm sure I disable Use Wireless Networks in location setting.
So how is your accuracy?
Relly good, thanks
Seriously, i've seen this mentioned quite often in the CM7 thread, but it never happened to me.
As said before, keeping agps data pretty updated to my position or close enough has always been enough for me.
Good luck in finding a solution that works for you!
GPS has been working perfectly for me under any Rom. Stock GB, CM7 and Stock Froyo.
In CM7 it locks pretty fast, always under 10 secs, after a few secs accuracy down to 3m. Works really good.
I only have GPS Status to download from time to time accurate AGPS data and that's all.
Thanks for the reply..
I have tried almost everything.
Tuning gpsconfig.xml and location.cfg, clear agps cache, restart before testing many value one by one. Tried many stock rom, take GPS files from milestone and milestone2 and the GPS still inconsistent.
Sometimes its accurate, but after turn off GPS for a few second, turn on again, its showing wrong position with accuracy shown as 4-9m, waited for some minutes, and still wrong. Sometimes its accurate for a few test, but after a few minutes, turn on GPS again, its showing wrong position again.
Tried also calibrate compass, even remove the compass driver, but still error.
There is a possibility of multipath error in GPS (bouncing signal from surrounding), but with easily lock to 5-6 satellites with 10-12 satellites in view, I suppose this can nullify error, as real for positioning, we only needed 4 satellites.
I hope there is someone out there know fix for this..
use this fix: http://forum.xda-developers.com/showthread.php?t=953630
Maybe it helps
pravarth said:
use this fix: http://forum.xda-developers.com/showthread.php?t=953630
Maybe it helps
Click to expand...
Click to collapse
Already tried.. even tested various value in gps.conf. No good..
Thanks.
bobo9900 said:
Is there anyone who use defy GPS daily? Can you share which rom or any GPS tweak to make defy more accurate and responsive for navigation?
I have been testing defy GPS, it seems like its rather not accurate to pinpoint location. Accuracy show 4-9m, but often real position is off by 30-200m. For navigation, it's response time rather slow plus the inaccuracy makes it not reliable. My old windows mobile P3600 gives precise position when put beside defy while navigating.
For info, I have disable wifi in location setting. I know I have successfully download supl data. With data enabled, I can lock under 10 sec.
This inaccuracy had been a problem for CM7. I have tested stock froyo and gingerbread, and problem still there.
So, can anyone help here? Do you have the same problem, if not please share your rom version or tweak..
Click to expand...
Click to collapse
MIUI rom allows you to enter your preferred satellite under ph settings ^^
Then use gps status app to manage a-gps state - I get anywhere from 10 - 30m accuracy
You are not alone
GPS accuracy on my Defy has been a concern since I bought it. Just like yours, it locks to 4-6 satellites and claims that it's accurate to 4 meters, but my real position is usually a block away. Other symthoms are:
- Accuracy improves with speed and becomes very good when traveling by car, very poor when still or just walking. The correlation between accuracy and speed should be the other way around...
- If there are more than 6 satellites in view, it locks to a maximum of six and then starts "jumping" from one set of satellites to another each two seconds or so. It does so even if the telephone is completely still. I think It should stay with the same satellites while not moving.
As you, I also tried all and every GPS fix script under the sun to no good, even filled a bug report for CM7 back in the day with no luck. It seems that a lot of people out there have perfectly working GPS (o so it seems).
This issue is quite strange though. I have a green lens Defy, and my wife has a Red lens one. We bought them several months apart and they both have the same accuracy issue, so it doesn't seem to be related to a bad production batch. I wonder if its related to geographic position (maybe it works worse in some countries, somehow)
Hopefully its a software issue and can be fixed.
I dont have this issue. Ive actually been sort of surprised at the accuracy of the GPS with CM7... it locks on within seconds (vs the minutes with Froyo). Almost instantaneous with WIFI and GPS on. And it is always accurate. Sorry to hear about your GPS troubles. It could be a hardware problem also?
The Galaxy S4, S5 and Note 3 all have a rather cumbersome magnetometer (=compass) system installed. Out of the box the compass is not calibrated, it does not point to north. You have to calibrate it yourself using a lengthy process of turning the device about several axes repeatedly. And everytime you turn off the device, the compass looses calibration. Even if you dont turn it off it tends to get less precise over time, so you need to recalibrate every 2 months or so. Makes using apps like Google Sky Map almost impossible.
How is the magnetometer chip in the Tab S? Will it automatically calibrate itself (like most other phones), or does it need calibration?
klausa2 said:
The Galaxy S4, S5 and Note 3 all have a rather cumbersome magnetometer (=compass) system installed. Out of the box the compass is not calibrated, it does not point to north. You have to calibrate it yourself using a lengthy process of turning the device about several axes repeatedly. And everytime you turn off the device, the compass looses calibration. Even if you dont turn it off it tends to get less precise over time, so you need to recalibrate every 2 months or so. Makes using apps like Google Sky Map almost impossible.
How is the magnetometer chip in the Tab S? Will it automatically calibrate itself (like most other phones), or does it need calibration?
Click to expand...
Click to collapse
Sorry cant help here. I got the 16gb version yesterday (sent back for Bestbuy 32gb). All I did was with wifi on open maps let it load my zone. Quit it then turn off wifi and open map and it found me and as I turned with the tablet the map turned so it new which way I was facing. I have no clue if this helps. So the GPS was working.
I am on the stock AT&T rom on my E980 and one day out of no where, my GPS cannot find my location. When I am on wifi it knows where I am at but if I am in the car or just walking around somewhere, it cannot find me. I have tried some apps on the play store that say that it "fix" the issues but none of them do. Do I need to call AT&T or is there something I can flash that can fix my issue?
Thanks.
It sounds like you may not have set the gps to high accuracy since with Wi-Fi you can find your location. Try setting, location, and set gps to high accuracy instead of battery saving mode. If that's not your problem, try a gps testing app and see what that does.
hawkwind212 said:
It sounds like you may not have set the gps to high accuracy since with Wi-Fi you can find your location. Try setting, location, and set gps to high accuracy instead of battery saving mode. If that's not your problem, try a gps testing app and see what that does.
Click to expand...
Click to collapse
I made sure that the location mode was on high accuracy and I even tried device only and alas, maps couldn't find me. I tried one of the GPS "Fixing" apps and it showed that I had a very weak GPS signal. I don't a case on my phone and I was on my deck while I was testing.
Chronic cross said:
I made sure that the location mode was on high accuracy and I even tried device only and alas, maps couldn't find me. I tried one of the GPS "Fixing" apps and it showed that I had a very weak GPS signal. I don't a case on my phone and I was on my deck while I was testing.
Click to expand...
Click to collapse
Custom ROMs past the gproj-common GPS HAL fix have great GPS.
Hi!
I used to have no problems with this situation on any of my previous phones:
In apps that uses gps, like runkeeper, i get very fast gps lock.. but, then, once I disconnect the screen, the "location" seems to be turned off.. The gps track stops counting. When I turn the screen on again to check what is happening, the phone instantly gets gps lock and registers that new spot. Basically what happens is that I will get a track but, instead of having the full track, I only get "straight" lines between the points the gps locked when i turner the screen on to check what was going on..
I have the location in high accuracy..
Any ideas?
Thanks!
I have the Impression there is a different location provider for the new chipset. When i am at places without any gps signals (for example a tunnel) the reported location is moving with the same speed and direction i had before coming into the tunnel. There also a change in my Google location history. When the screen is off it looks like the location is provided by phone cell only. The reported location is more than 300m away from my real location. I have not seen this in the same locations with my older phones. (Edit: All with Oyxgen OS 3.1.2)
I have the same issue as op on 3.1.2, not rooted.
Sent from my ONEPLUS A3000 using Tapatalk
I have this stupid thing also, stupid phone,
The gps loses the fix right after you leave the app that uses it. It doesn't work in the background, I'm gonna have to return my phone sadly.
So does this happen with the newer firmware? Can you put it in the background with the screen on and it run? It seems like a software issue more so than hardware, maybe I'm wrong but who knows..
Sent from my SM-G935T using Tapatalk
obviously a software issue, but they won't fix it since nobody talks about it. If you switch to another app that doesn't use GPS or turn off the screen the phone loses the fix right away.
Still happens with Oxygen OS 3.2.0
Can you give a try launching a nav session in google map. On my lg G2, when I get a fix in google map then turn the screen off, I will loose my fix. But if I launch a turn by turn nav session I will keep my gps fix even if I turn the screen off.
Could this be related to doze hibernating Maps or whatever app /?
Jfxmedia said:
Could this be related to doze hibernating Maps or whatever app /?
Click to expand...
Click to collapse
Yes. This is likely related to the aggressive Doze mode that has plagued users in receiving notifications. Try disabling Doze by following the instructions in the link below and try GPS again. If it works, then Doze is the cause.
https://forums.oneplus.net/threads/push-notification-issues.451149/
Mit Hipster said:
Yes. This is likely related to the aggressive Doze mode that has plagued users in receiving notifications. Try disabling Doze by following the instructions in the link below and try GPS again. If it works, then Doze is the cause.
https://forums.oneplus.net/threads/push-notification-issues.451149/
Click to expand...
Click to collapse
Anyone tested this with success?
Turn off power saving mode for using GPS while turn off screen
I have used Strava and it can not be received GPS signal when screen off. Then I turned off power saving mode and it was OK.
Porsche.V said:
Anyone tested this with success?
Click to expand...
Click to collapse
its dose feature that's interfering. I had the same issue. disabling dose does the trick.
dpj52190 said:
its dose feature that's interfering. I had the same issue. disabling dose does the trick.
Click to expand...
Click to collapse
And this is why I make my rom that disables doze all together. It kills battery more then it saves.