Related
i made a little test with Endomondo sport tracking application to see how accurate my gps is. I walked the straight street for 0.64 kilometers and this is what it looks like:
http://www.endomondo.com/workouts/ilRz0mnqvJA
I was wondering if that is normal or should it be more accurate? Or can i make it more accurate?
edit: don't mind about the duration, i forgot to turn the app off when i got inside!
My GPS isn't very accurate, but I am in the heart of Hong Kong, so I can't expect it to work well with so much interference. It would detect my exact location in Maps, but it the blue arrow won't lock, and jumps around to as far as two blocks away.
I've tried some gps improvement apps, but they do not work for me.
mine sgs2 does not have very good acuracy. My old htc desire was very acurated compared with sgs2
jankhner said:
i made a little test with Endomondo sport tracking application to see how accurate my gps is. I walked the straight street for 0.64 kilometers and this is what it looks like:
http://www.endomondo.com/workouts/ilRz0mnqvJA
I was wondering if that is normal or should it be more accurate? Or can i make it more accurate?
edit: don't mind about the duration, i forgot to turn the app off when i got inside!
Click to expand...
Click to collapse
Wow, sorry but i kinda laugh when i saw the ziggyzag lines. No, the GPS shouldn't be that way, I've used mine several times while driving and it just flows smoothly, like a real GPS device! Once I even had 10 out of 10 satellites locked in a few seconds!
Maybe the GPS in your phone is defective or something, I say exchange your unit for a new one. Hopefully it's still under warranty
bverilo said:
Wow, sorry but i kinda laugh when i saw the ziggyzag lines. No, the GPS shouldn't be that way, I've used mine several times while driving and it just flows smoothly, like a real GPS device! Once I even had 10 out of 10 satellites locked in a few seconds!
Maybe the GPS in your phone is defective or something, I say exchange your unit for a new one. Hopefully it's still under warranty
Click to expand...
Click to collapse
You cannot tell that from that log. It depends on the circumstances, e g bad reception due to high buildings can easily cause problems like this.
I suggest jankher does some more tests in others locations.
Sent from my GT-I9100
tjtj4444 said:
You cannot tell that from that log. It depends on the circumstances, e g bad reception due to high buildings can easily cause problems like this.
I suggest jankher does some more tests in others locations.
Sent from my GT-I9100
Click to expand...
Click to collapse
Yeah jankhner, do some more tests, probably in some other place. Update us what happens
Sent from my GT-I9100 using Tapatalk
Interested in this thread.
I've had my SGS2 for a couple of weeks and have been testing the GPS for accuracy. From my experiences, the accuracy is OK when you are using a 'proper' satnav app (e.g. CoPilot) as the system knows to try and keep the arrow in the middle of the road.
However, one of my hobbies is Geocaching which I need an accurate GPS for and here's where I have had real problems. At a known cache location (i.e. standing exactly on top of it), my SGS2 showed 5 sats locked on, 25m accuracy & 32m to the cache !!! My HTC Wildfire (in my other hand) showed 8 sats locked on, 2m accuracy & 1m to cache.
Time to read more threads and see if this can be improved by software or if I'll have to think about keeping the HTC for caching (which would annoy my 11 year old who now has it) or consider selling the SGS2 and getting a HTC Sensation or Motorola Atrix.
There've been a fair number of positive results with the Vulcan Nerve Pinch, so this is to quantify the findings.
I can't edit the poll, but please take "permanent" to mean 2 days of regular use. So if a single application works for at least 2 days, then vote this, else vote temporary. If improvement didn't last for 2 days, then indicate how long it did last.
Detail of the issue and of the Vulcan Pinch:
The Prime's three antennas use pressure contacts (pogo pins) that can be marginal, causing weak wifi and/or weak or no GPS. Pressing/pinching on the three locations, or along the Prime's top edge (landscape), can improve reception in many cases. Per the poll so far, about 25%.
See pics in below link to find locations of the antenna contacts,
http://forum.xda-developers.com/showpost.php?p=21847680&postcount=52
Well I just did it about 3 hours ago, so I don't know how "permanent" it is yet.
But, so far so good.
You're holding it wrong
unfortunately, no. my gps still doesn't see jack and wifi still slows to a crawl when there are walls between prime and the router.
Well what do you know, they named a Fix after me.
To what I understood there were two different kind of problems for GPS :
1) Some people had no GPS satellites detections at all.
2) other people had satellites detections with locks but at a low reception level.
I guess this fix is only working for the case number 1. In that case, people are now joining the case number 2.
For people who were already getting a few satellites (case number 2), it will change nothing as the back cover is still the same ...
PaulVulcan said:
Well what do you know, they named a Fix after me.
Click to expand...
Click to collapse
Ah the perks of having a username of PaulVulcan.
---------- Post added at 10:42 AM ---------- Previous post was at 10:37 AM ----------
dizzy33 said:
For people who were already getting a few satellites (case number 2), it will change nothing as the back cover is still the same ...
Click to expand...
Click to collapse
Except maybe make it worse.
I got a gain of 10db on the WiFi, no change to the GPS.
Did not vote.
My Wifi and GPS work fine. I picked up my Prime on Friday from Best Buy. It's the C1 serial number.
Sent from my Samsung Epic™ 4G Touch
I pickede mine up Saturday from BB (Orlando) and B1 Series with no functional GPS but amazing Wifi. I have even went a little father to beat it againest the steering wheel and see if i could "jar" something to work a little better. With no luck GPS has not improved. Wifi reception is just as good as all my other devices. Does not fall of as quick as some of recorded.
The sad results of this pole show how many of us are willing to squeeze a $500+ tablet.
What is the Vulcan Nerve Pinch?
Buff McBigstuff said:
What is the Vulcan Nerve Pinch?
Click to expand...
Click to collapse
Spock of Star Trek ~ How to render someone unconscious
Pinching didn't help. My GPS was fine until the last update. I ran GPS test before and after the update since the update was to fix GPS. I wanted to see the improvement, but I only got to see how it made my GPS completely unfuctionable. The same exact thing happened to my Dad's Prime. I sure wish Asus would get their **** together.
I tried the vulcan pinch a few days ago but did not affect GPS. I even drove block to block to see if google maps updated my location but no go. I dont think it affected my wifi either but I think my wifi was good to begin with and had thought it was bad as I was basing it on the signal bars.
Got a c1 model from BB last saturday. After ics update and vulcan pinch, Gps Went from zero sat to 11 views with 8 locks indoor. Unfortunately, view/locks are intermitents. WIFI didnt improved and is quite slow but stable. I noticed that i cant switch on/off the gps device from anywhere in the settings since the ics update, but it was still available before the update.(?)
Got my squeezer from Best Buy (serial BC). Wi-fi working fine, 4g LTE is sweet. Gps works only outside, but locks in and out with movement, bad. All the pinching for not. Dock works great. I will keep returning trying different units until Best Buy bars me.
BC model from Comet (UK) wifi works fine but had no GPS signal prior/after ICS update. After the big squeeze the GPS is now working indoors, albeit with weak signals (best result I had was 11 Satellites / 7-9 locks - range of 15-31 SNR). On the road it managed 5-7 satellites with locks dropping in and out.
I'm going to hold off on answering because although I have wifi analyzer and gps test pre and post Squeeze that shows it improved......I also have the similar results from 3 weeks ago or so when my gps and wifi were "fine" and then they went "bad".
So something changed for me even before the Squeeze (no, I didn't drop it ) So I'm hesitant to say if mine has been "fixed" temporarily or more. I think that IF this connection is the culprit then we all might find that our reception might be hit or miss over time. Hell, all I did was reboot a few days ago and I got a lock on a few satellites v. none prior to rebooting.
Beards said:
Spock of Star Trek ~ How to render someone unconscious
Click to expand...
Click to collapse
It still doesn't say how it applies in our device.
Striatum_bdr said:
It still doesn't say how it applies in our device.
Click to expand...
Click to collapse
It's just the original technique that is applied to the Prime, that's all this Vulcan Nerve Pinch is.
Turned on GPS..
If I stand at the furthest point in my house and do a speed test with GPS disabled I get
34ping 2.30Mb/s down 3.82Mb/s up
I enable GPS and do another speed test..
11ping 17Mb/s down 4.44Mb/s up
Although this has, for me, fixed my Wifi my GPS is non existent, I am yet to get a single satellite with GPS test while in the middle of my garden.
Let me know if enabling the GPS helps with Wifi speeds for any of you
Maybe this is why my WiFi seems OK. I just leave GPS on most of the time. (although I haven't tested my GPS as it is wintry here)
interesting, i will have to give this a try.....thanks for the info sir.
Was really hoping it would work for me since my wifi gets below 5mbps which sucks...
Did multiple test and nothing major changed..
Glad it worked for you..
Sent from my Transformer Prime TF201 using Tapatalk
You're sure enabling GPS didn't simply make speed test select a more appropriate server?
It would be better if folks tested wifi speeds over their local network, I think.
costcutter said:
Turned on GPS..
If I stand at the furthest point in my house and do a speed test with GPS disabled I get
34ping 2.30Mb/s down 3.82Mb/s up
I enable GPS and do another speed test..
11ping 17Mb/s down 4.44Mb/s up
Although this has, for me, fixed my Wifi my GPS is non existent, I am yet to get a single satellite with GPS test while in the middle of my garden.
Let me know if enabling the GPS helps with Wifi speeds for any of you
Click to expand...
Click to collapse
Interesting. Is this with the latest firmware? Play with Wifi Analyzer as well. Check your Wifi -db signal. See what is going on with that.
Odd that just enabling GPS and not enabling would get different results. Maybe something with the latest firmware.
I can't test because my prime is totally modded. External antenna etc.
costcutter said:
Although this has, for me, fixed my Wifi my GPS is non existent, I am yet to get a single satellite with GPS test while in the middle of my garden.
Let me know if enabling the GPS helps with Wifi speeds for any of you
Click to expand...
Click to collapse
My GPS works (marginally) . Works better with the GPS fix mentioned in other threads. However, getting a GPS fix from a "cold start" sometimes takes a while. For example, Decided to try it on a short grocery trip. When I finally got the fix (already at the store), it said "2050 sec to first fix"....Once it got that first fix, it worked fine the rest of the way home.....Again with that fix applied....although I marginally see sats without the fix.
Another side note: I happened to notice while it was searching, a little info message appeared that said "Best results are obtained if the unit is horizontal".
But sometimes that first fix can be a bear to get.
Good luck,
Bob
L_Mo said:
You're sure enabling GPS didn't simply make speed test select a more appropriate server?
It would be better if folks tested wifi speeds over their local network, I think.
Click to expand...
Click to collapse
Us iPerf to measure speeds.
Proud Owner of a Transformer Prime on Tapatalk
I am at starbucks was getting 11Mpbs for the last hour I enabled GPS and sure enough I am at 65Mpbs .......I work out of this starbucks and never connected at 65Mpbs........just saying what I've observed.
agzela said:
I am at starbucks was getting 11Mpbs for the last hour I enabled GPS and sure enough I am at 65Mpbs .......I work out of this starbucks and never connected at 65Mpbs........just saying what I've observed.
Click to expand...
Click to collapse
Lol which Starbucks do u go to? I'm lucky if I get 1mbps at any Starbucks in NY and Philly
Sent from my Transformer Prime TF201 using Tapatalk
Pretty sure he's talking link speed, not actual throughput.
I live next to a Starbucks that is nearly always dead and with me sitting close to the registers, the speeds can hit 2 Mbps max. ****ty ATT internets.
Sorry for the noob question, but how do you enable GPS so that it stays on in other applications?
Moist said:
Sorry for the noob question, but how do you enable GPS so that it stays on in other applications?
Click to expand...
Click to collapse
Other than the check boxes in LOCATION Services, there is no other control. When you open an app that can use GPS, you'll see a little icon in the notification bar that says "Searching for GPS"
If the GPS system were totally working, you would never lose the signal...The only time you lose it is if it is marginal.
What is the impact of GPS on battery life, if it does not work and it keeps searching without finding anything?
Battery will be drained very very quickly. I am sure.
Think about it
bimbobo said:
What is the impact of GPS on battery life, if it does not work and it keeps searching without finding anything?
Battery will be drained very very quickly. I am sure.
Think about it
Click to expand...
Click to collapse
The GPS will only find your location if an app asks it to do so. So if the GPS icon isn't showing next to the clock the GPS is not in use.
Not sure any of you have noticed... Prime doesn't have a gps.conf file on it... I added it last night and got 8 of 13 locked... from inside... by the window. Check out system/etc/gps.......
One other thing I noticed.. in build.prop my wifi.country = is set to GB even though I bought the transformer in Canada... can someone check and see if they have anything different?
I've always wondered if the Wifi issue was a software problem. My wifi is "okay". The most annoying thing is it randomly completely disconnects from my school's wifi network and then it shows that there is no wifi available. The reason why I think its a software problem is because if I disable and re-enable the wifi it starts working again with me being in the exact same location.
Kind of odd...
HiddenSanctum said:
I've always wondered if the Wifi issue was a software problem. My wifi is "okay". The most annoying thing is it randomly completely disconnects from my school's wifi network and then it shows that there is no wifi available. The reason why I think its a software problem is because if I disable and re-enable the wifi it starts working again with me being in the exact same location.
Kind of odd...
Click to expand...
Click to collapse
I saw this on previous firmwares, but never on the latest one. It also seemed, in my experience, to be related to the chrome beta. If I brought that up it would immediately stop any data being transferred over wifi and would then lead to a disconnect.
I never did uninstall the chrome beta to see if that fixed it entirely, but updating to the latest firmware did seem to stop the issue.
Suppose I'll hop on the bandwagon and give it a go.
It's hard for me to get any real speed degradation without actually dropping below the connection threshold with these rural speeds, but I'll try.
My wifi works pretty good after some build.prop tweaks, i would suggest that before modding the tf201. Basically, i added net.tcp.buffersize.wifi with some values and net.tcp.buffersize.umts with the same values 4096 ,87380, 256960, 4096, 16384, 256960
Of course you need to be rooted
Sent from my Transformer Prime TF201 using xda premium
I love my G2 (d802) but it became apparent after I purchased it that the GPS is not up to par. As I use navigation software a lot this was very important to me.
I believe there are 2 issues
1. Hardware - The sensitivity of the antenna appears poor. There is not much you can do about this although I have seen one fix on YouTube.
2. It has a problem with the injection of AGPS data. (As a rule of thumb if it is taking longer than 30 seconds to get a fix under clear sky then AGPS data is not being utilised)
On my device I have managed to get the GPS working adequately with a couple of fixes.
The first is to use Tytung's AGPS injector widget. I have it set to inject AGPS data every six hours. This is probably overkill and once a day should be sufficient if you are worried about data use. (Tytung was the dev who got the gps libs working properly on the HD2)
It can be found here on Playstore.
The second was to use Derek Gordon's AGPS patch (Info and links to XDA threads here). To make things even easier he has now released an app called TopNTP. Don't be afraid to experiment with the various configurations until you get one that works well for you. I have used his patch on a number of devices in the past and have never had issues with it. Just make sure that you make a backup on first use of the app.
To test your GPS's functioning I recommend GPS Test. In fact if you do not want to use Tytung's app to automatically inject AGPS data you can do it manually with this app.
Thank you very much.
Testing on LS980 and report soon.
GPS is the biggest flaw on this device (and maybe also phone signal).
Will try these steps and see how it goes.
I get a GPS fix within 30 seconds, but I keep losing the fix while driving in the car. Very annoying.
In my D806 KK the gps work PERFECT.
- sYndrome - said:
I get a GPS fix within 30 seconds, but I keep losing the fix while driving in the car. Very annoying.
Click to expand...
Click to collapse
Yes this is pretty much the issue I would have. This fix seems to have vastly improved that.
falconhawk81 said:
In my D806 KK the gps work PERFECT.
Click to expand...
Click to collapse
My guess is that the fundamental issue is with the antennas. The hardware fix I have seen involved readjusting these.
If it's a quality control issue in production then some people will get units that work perfectly, some not at all and many in between.
This fix will improve things for those in between by getting the most out of what they've got.
For me that means it now works adequately but not perfectly.
For example I still have a very slow fix indoors. Prior to using the fixes I had none.
If I compare it with other devices I have access to. (2 Samsungs , a levovo and a couple of old cheap Chinese GPS units they all still beat it heads down unfortunately.
Sent from my LG-D802 using Tapatalk
Tried this fixes and I don't see any change really.
Inside buildings is where I have a problem. Outside no problems finding my location quickly, but not perfectly accurate.
Sensamic said:
Tried this fixes and I don't see any change really.
Inside buildings is where I have a problem. Outside no problems finding my location quickly, but not perfectly accurate.
Click to expand...
Click to collapse
You should not be concerned trying to get a GPS lock inside a building.. What are you trying to do? Map to the other side of the mall?
Sfkn2 said:
You should not be concerned trying to get a GPS lock inside a building.. What are you trying to do? Map to the other side of the mall?
Click to expand...
Click to collapse
I know it's not really essential, but my Nexus 7 2013 and SGS3 can find my location inside my house and the G2 can't.
Sensamic said:
I know it's not really essential, but my Nexus 7 2013 and SGS3 can find my location inside my house and the G2 can't.
Click to expand...
Click to collapse
Do you have the location settings set to "High Accuracy"?
Has anyone checked if on 20F the GPS works better?
For anyone who is interested in the hardware fix I mentioned in the opening post you can find it here
http://youtu.be/UdDJqFxpRy8
I've not been brave enough to try it so have no idea if it's effective or not.
Sent from my LG-D802 using Tapatalk
LS980 with the fix under the back cover.
Location - Israel.
G2 GPS Test: http://youtu.be/4awGV2kr_m8
Faster gps for il server and gps status for testing.
Made it 2 mins ago.
Enjoy.
Sensamic said:
Has anyone checked if on 20F the GPS works better?
Click to expand...
Click to collapse
Unfortunately reported that its the same.
Sent from my LG-D802 using XDA Premium 4 mobile app
corrsea said:
I love my G2 (d802) but it became apparent after I purchased it that the GPS is not up to par. As I use navigation software a lot this was very important to me.
I believe there are 2 issues
1. Hardware - The sensitivity of the antenna appears poor. There is not much you can do about this although I have seen one fix on YouTube.
2. It has a problem with the injection of AGPS data. (As a rule of thumb if it is taking longer than 30 seconds to get a fix under clear sky then AGPS data is not being utilised)
On my device I have managed to get the GPS working adequately with a couple of fixes.
The first is to use Tytung's AGPS injector widget. I have it set to inject AGPS data every six hours. This is probably overkill and once a day should be sufficient if you are worried about data use. (Tytung was the dev who got the gps libs working properly on the HD2)
It can be found here on Playstore.
The second was to use Derek Gordon's AGPS patch (Info and links to XDA threads here). To make things even easier he has now released an app called TopNTP. Don't be afraid to experiment with the various configurations until you get one that works well for you. I have used his patch on a number of devices in the past and have never had issues with it. Just make sure that you make a backup on first use of the app.
To test your GPS's functioning I recommend GPS Test. In fact if you do not want to use Tytung's app to automatically inject AGPS data you can do it manually with this app.
Click to expand...
Click to collapse
I just did a simple fix.....
http://forum.xda-developers.com/showthread.php?p=54525017
Sent from My LG G2 LS-980 or LG G Pad 7.0 V400
thanks for the suggestions i will try them out and report back
Sensamic said:
Has anyone checked if on 20F the GPS works better?
Click to expand...
Click to collapse
Bored of problems and fixes, I started from zero, flashing a 20F kdz and then Cloudyflex 2.5. Huge improve in adquisition (less than 15 seconds in cold start, and instantly on hot) without any fix or trick. Maybe a little less precision.
Try it.
I have a v10 and noticed that the antenna to the gps is on the back cover. There are metal prongs that connect to the back cover when you place the cover on. Try to lift the connectors so that the connections occur better. That fixed my gps after all the settings and software stuff were failing to fix my gps.
Hello everybody from Xda,
I'm looking for a new phone for my mother and I am really interested to know what the GPS is like. If the gps is any good I will join the Xiaomi army.
Why am I so interested in this?
Well my mother her navigation system just died and, I would like to install the tom tom app on her phone, I've got it currently on my oneplus one without internet and it's great. My mom will also have no data plan with her phone so google maps or anything isnt an option for her
So my question to you guys is, does anybody of you have had any ecperience with the gps.
Thanks in advance XDA,
Deameong
I am curious about the same thing. I use GPS without any Internet or even phone signal (normally on airplane mode to save battery). And I would like to know how reliable it is.
Attached a Screenshot, few Seconds (about 30) after switching GPS on. GPS receptions is really good, from my point of view.
cataplines said:
I am curious about the same thing. I use GPS without any Internet or even phone signal (normally on airplane mode to save battery). And I would like to know how reliable it is.
Click to expand...
Click to collapse
Just recieved it now,
Using google map and waze, locking on me very fast,
Looks good and stable with great reception of the GPS...
Can you say how much time in seconds need to lock satellites?
Thank You
Thanks alot for the advice guys,
Going to order it tonight!
I've just come back from holiday and I used GPS extensively with the offline Co-pilot app. It worked almost flawlessly both in the car and when cycling. I can't begin to tell you how much better it is than older MTK eqiluipped phones. Lock times varied from four seconds to nearly a minute. One thing I noticed is that it was much faster to lock in Co-pilot when I was connected to the internet. Accuracy was great, though I never went into a big city with lots of high rise buildings.
GPS, Wifi and network signal 2-3 times better than on my Note 4.
GPS is sick, in my room after 2-3 sec.
Sent from my Redmi Note 2 using Tapatalk
Hello,
Runkeeper with someone tried, I hesitate to buy the premium just because of that?
(avec Runkeeper quelqu'un a essayé, j'hésite à acheter le Prime juste à cause de ça?)
I really want to know about the gps as well. I use the gps so much. Now I have the lg g3, I would like to know if this one is around the same as g3.
Thanks
D.
Ill give uadvice gps locking depends onyour connection and area,i use gps in city with locking time vary from 10 -80 sec or more the signal was good but for gps signal its not good so it some time locks slower, this is qqualcomm 400 chipset ,newer version of mediatek might performs better and i have ever try gps with airplane mode one using gps test on aa mountain area and it lock 30 sec or less,the signal came out by it self with no connection so everything depend on your area and your xhipset ,newer chipset performs excellent on gps
I'd like to know more about how the GPS in this phone is faring for you because for me it's an endless horror story. Neither Google Maps nor Endomondo give even acceptable locations and tracking.
And the compass is so bad I wanna puke.
The phone is great in almost every other aspect, but GPS is fairly important for me and I'm starting to regret purchasing this phone. May it be fixed with better ROMs or is it a hardware fault?
Or3 said:
I'd like to know more about how the GPS in this phone is faring for you because for me it's an endless horror story. Neither Google Maps nor Endomondo give even acceptable locations and tracking.
And the compass is so bad I wanna puke.
The phone is great in almost every other aspect, but GPS is fairly important for me and I'm starting to regret purchasing this phone. May it be fixed with better ROMs or is it a hardware fault?
Click to expand...
Click to collapse
I used it yesterday for half an hour in inner city traffic. The phone found the GPS signal in a few seconds with data connection, without it takes a minute or two. Navigation itself was worrisome. Went under a bridge and signal was lost for about 2 minutes. Then Google maps always thought I was going inside buildings or streets next to my actual route. Really weird.
Inside my room 2 - 3 seconds lock, the best gps on any of my past smartphones.
Adrian.Chandra said:
Inside my room 2 - 3 seconds lock, the best gps on any of my past smartphones.
Click to expand...
Click to collapse
And what is that information good for since the moment you open Google Maps, Runtastic or something along those lines it doesn't have any accuracy and keeps jumping the whole time?
I'm sick of people sharing screenshots of GPS Test or GPS Status like they're proof of anything when what's really important is real life apps behavior.
This device GPS should be good..
Or3 said:
And what is that information good for since the moment you open Google Maps, Runtastic or something along those lines it doesn't have any accuracy and keeps jumping the whole time?
I'm sick of people sharing screenshots of GPS Test or GPS Status like they're proof of anything when what's really important is real life apps behavior.
Click to expand...
Click to collapse
I don't know what you're on about, but GPS Test uses the same API and sensor as any other app. I'm getting the same 5-7 second fix indoors from GPS Test and HERE Maps. Both don't jump around and show my correct position.
Or3 said:
And what is that information good for since the moment you open Google Maps, Runtastic or something along those lines it doesn't have any accuracy and keeps jumping the whole time?
I'm sick of people sharing screenshots of GPS Test or GPS Status like they're proof of anything when what's really important is real life apps behavior.
Click to expand...
Click to collapse
Well we use diagnostic tools to know accurately if something is wrong or not, nothing wrong with that. With GPS Status we can know how many sat signal we got, how strong, what is the margin of error, etc.
And i don't have any problem in real life apps and GPS status confirmed that fact.
If you want positive info or help don't start with a negative.
Wheaton's Law - DBAD
China ROM GPS problem
But with china stable rom, the map apps is using Baidu, and if your GPS location is not available, the device will report your network location (wifi/3G), which is in simplified chinese to your requesting apps, that sucks, however, I can't deny the hardware GPS here in RN2 is the best I ever used.
I tried GPS in the city. High accuracy, pretty fast lock and it worked just fine, no problems. Accuracy is usually 3-5m, 17 satellites in use on average. I'm not exactly sure what kind of problems you're facing. However, I can tell you this. A friend has Meizu M1 Note, the GPS was at first very good. But somehow at some point after updating, the accuracy's became horrible, 80m+ and it kept losing connection, IF it managed to establish one. It's most likely not faulty HW, but a misconfigured gps config.
Sent from my Redmi Note 2