Database Develop

Inaccuracy of GPS

Well i have a question.
When i use TomTom or IGO the position on the screen is always about 50 meters off to where I actually am.
So since IGO & TomTom Both have the same behaviour i guess i should look at the GPS module.
My old S730 was always spot on... when i looked at the screen and saw a turn on the left, there actually was a turn to the left.
Anybody knows how this can be solved ?

My TD2 does not have this problem, perhaps there is an issue with your particular phone?

I thoght about it before and found out that it was not inaccuracy but the delay GPS chip needs to calculate your position. Do one test. Some time when you stop at a red light and you know you've waited for about 5 secs, check your position then. I believe it will be accurate then.
I noticed that some GPS's try to calculate your current position based on direction and speed you had few seconds ago. I found out about it one time when I waited at the red light in a long tunnel. Obviously there was no signal there, but when I stopped, GPS kept on showing that I was moving about 40MPH for several seconds before it finally showed lost signal message.
Some GPS's do calculate your position ahead of time and some don't.

Maybe it was because i had assisted GPS turned on...
If you do a search on AGPS LAG (ANY HTCPRODUCT WITH AGPS) then you will see enough posts that speciffically deals with this problem...
My old phone is SPOT ON with TT and my new 2 times faster phone is less accurate, and in a street with lots of turns, take a-lefts etc it's quite important to rely on the machine. And when the machine says turn left on the next corner, is that left the one i am currently at or the one 20 meters ahead from where i am now....
It should be just as with my old phone spot on

Well disabeling AGPS definitely works...
I am now about 20 meters behind all the time. This seems acceptable although I keep finding it strange that my older phone was way more accurate.....

you mean disable QuickGPS or disable AGPS in Advanced Config??

It is definitely a lag issue, not a precision issue: my TD2 internal GPS is at least as accurate as my Qstarz bluetooth GPS logger, and this one has a dedicated large antenna and good GPS chipset. TD2 sensitivity is also comparable, maybe even better inside building, and the time before locking a signal from coldstart is also comparable or better...
BUT there is a lag of maybe 30 m around 50 km/h in my car, and it is is indeed quite noticeable for driving directions...No big deal for me, as I do not rely on voice instruction but always have a quick peak at the screen (I was bitten by ambiguous instruction often enough in the past with other GPS system to have developped this quick peak habit ;-) )..but this lag is indeed anoying...
I'd like to try the TD2 using the external GPS through bluetooth, if I find time to do it this WE I will post my conclusions...

well0549 said:
Well i have a question.
When i use TomTom or IGO the position on the screen is always about 50 meters off to where I actually am.
So since IGO & TomTom Both have the same behaviour i guess i should look at the GPS module.
My old S730 was always spot on... when i looked at the screen and saw a turn on the left, there actually was a turn to the left.
Anybody knows how this can be solved ?
Click to expand...
Click to collapse
I use to have the same problem as you, so, I've tried the tweak referred in this post http://forum.xda-developers.com/showthread.php?t=514912 and it did the trick for me.
I use iGo8 and NDrive and the accuracy improved a lot, it's almost spot on, no matter what speed I'm driving.
Regards,

I was in my mates Audi TT the other day. He has the built in GPS in the dash board. I noticed there was as much lag as you see on an HTC device.
Also was in a car a few months asgo with someone who had a stand alone TomTom device and that too had lag.
Unless you're paying thousands of Dollars for millitary grade navigation equipment, i wouldn't spare the lag issue another thought.

Not long now ...
There's a bigger lag comming if the media are to be believed (and based on everything that comes from the tele, radio and newspapers these days - there're probably not - they can't even get the weather right)
http://news.sky.com/skynews/Home/Technology/GPS-Network-Could-Fail-Next-Year-Leaving-Sat-Nav-Useless-US-Government-Accountability-Office-Warns/Article/200905315284843?lpos=Technology_Carousel_Region_4&lid=ARTICLE_15284843_GPS_Network_Could_Fail_Next_Year_Leaving_Sat_Nav_Useless%2C_US_Government_Accountability_Office_Warns

"
Unless you're paying thousands of Dollars for millitary grade navigation equipment, i wouldn't spare the lag issue another thought."
Diamond1 paid £150 was spot on. No Lag. The speed indicator on tomtom was very accurate, not like on the diamond2 where it takes over 2 seconds to show a speed change. I am surprised that not many people have noticed the slow and inaccurate GPS performance of the D2.

How bad is the GPS?

im considering buying this phone,but i hear there's problems with the GPS. my current phone has a great GPS receiver and i use it a lot for day to day navigation.How much will i be disappointed if i were to expect the same from the galaxy s?

http://forum.xda-developers.com/search.php?searchid=42858169

Here in holland I have no problems with the GPS reception...

Personally, I found that straight out of the box the gps was dreadful, but an hour later after I did the simple gps fix, it navigated me on a hundred and fifty mile round trip with no problems at all.
The fix is simple and easy and takes literally no skill. When you take your sgs out of the box, see if the gps works for you, then try the fix. If there is still no joy then take it back and say the navigation is busted and you want a different handset.
I'd certainly say its worth trying at least. Chances are can get it working and everything else that you like about droid is better on the galaxy .
It's worth remembering that the gps is not battery friendly and you'll need a potent (2A output)car charger to keep you running on the move.
Sent from my GT-I9000 using XDA App

Basically, in summary:
1) In late firmware, the lock is quite quick, especially compared to car GPS units. Maybe not as fast as some other phones, but fast enough. Certainly faster than my Garmin Forerunner
2) The accuracy boundaries on this phone are wrong sometimes (at least in XXJM5), but this may be a bug in that specific pre-release.
3) With JM5, the unit seems to only lock onto 8 satellites max, but, some people are saying apparently newer firmware's are locking onto more
4) People are complaining of issues getting locks when moving with the unit. However, I've experienced this on ALL GPS units I've owned. AGPS should help with this though (but I've never tested initial lock whilst moving except in a firmware where GPS was 100% broken for me).
5) In some cases, the GPS goes skitzo, this might be fixed in later firmwares
6) Finally, sometimes the track is a bit off to the side, and doesn't handle cornering well.. This is likely related to (2). But this makes it useless for fitness at the moment
Anyway, the GPS is usable, but there are serious accuracy problems with it still. Samsung has said that they are working on optimising GPS for a September update. My best advice is wait until then, because if it isn't fixed in September, the possibility that it is due to poor hardware design seems to grow significantly..

thank you for your valuable input,this forum really is the best on the internet.I'm gunna be buying it next month anyway,so lets see if the update fixes the GPS or not.To be honest,theres no other phone that can match it,so theres no alternative to this phone even if the GPS IS dodgy

The GPS sucks so hard that I'd rather use a regular map for navigation.

My Galaxy S has no gps problems. The first time i went out from house to check GPS accuracy I got GPS signal after 3 seconds. It's stable in 100% cases.

Acquiring signal is not the issue. I don't understand why people keep comparing signal to accuracy. it's not the same thing.

Exactly, there are people in other topics that are just inflating the whole issue, their claims are way exaggerated, and the original issues has already been fixed on newer firmwares, yet they refuse to accept it.

AllGamer said:
Exactly, there are people in other topics that are just inflating the whole issue, their claims are way exaggerated, and the original issues has already been fixed on newer firmwares, yet they refuse to accept it.
Click to expand...
Click to collapse
Go for a 20min jog then and show a track of your perfect GPS. I have a lower standard than many of them, but all tracks I saw lost lock excessively at some point or another..
I haven't tried it myself, but can on tuesday.

damn,so many different opinions on this issue.also not being able to track my runs is a BIG minus but still not a deal breaker.day-to-day city navigation is a must though.

It's just as simple as that - you don't check gps functionality just by its fix time. you put it in your car, and start driving - if it's accurate (highly unlikely), gewd. if not - go back here and whine.

kingofkings2603 said:
damn,so many different opinions on this issue.also not being able to track my runs is a BIG minus but still not a deal breaker.day-to-day city navigation is a must though.
Click to expand...
Click to collapse
The big problem is that many of them seem to be testing quickly from their chair.. There is overwhelming evidence that the GPS doesn't work accurately, but barely any showing it does.. In fact, in one case, I saw someone claim the unit was working perfectly, but the track they showed was on a straight highway, and was fluctuating excessively between both sides of the highway. And the most vocal of those who claims it works perfectly don't seem to be posting logs..
There is also some confusion between whether it is "fitness grade" or "car grade". Car navigation GPS can snap to tracks, and has more room for accuracy errors, because it can assume you always exist on the closest road, and if you use directions, it can assume you took the correct turns when it told you to do so (and correct itself a bit later). That's what most car units seem to do, and it helps compensate for most inaccuracies. It can lead to a bit of pain though if you make lots of turns, some of which aren't correct. Some people are possibly happy because they have used dedicated car units before which suck (some navman's take at least 5 mins to get a basic lock, negating any benefits of having them), but, since some phones offer better directions apparently, people are complaining it should be better.
Fitness grade requires MUCH higher resolution to be usable, because the distance is shorter (generally), and if your GPS veers off course, it gives you a false indication of jogging distance. Garmin forerunners feel generally like they are within 1 or 2 meters a of the time (but occasionally veers off 3), but from what I've observed standing still, the flaws may be less visible when moving, but simply appear as slightly off course.
Then there are those people who stare at the SNR/locked satelites for hours at end without checking whether the long/lat is actually correct, or the accuracy boundary (they see 5m accuracy, but don't actually check if it is accurate within 5 meters). I was one of these, until I realised that the accuracy boundary was wrong..
Part of the issue also comes down to firmware though. People are using pre-release/leaked firmware (which might not even be complete) and are judging the GPS quality based on that. No comment needed except, don't assume that Samsung aren't working on fixes because there is no fix in pre-release firmware.
I haven't properly tested either though personally because I use a forerunner for jogging (waterproof), and since I fly, I prefer to use maps to understand locations better. I did notice though that leaving my phone on my desk for a long period of time sometimes allowed the signal accuracy boundary to not include me (ie, allow a position of 20m away from me, but show 5m accuracy) intermittently. And this might explain the fluctuations in position many others have gotten..
Either way, it is debatable. The biggest issue is that the assumption so far is that everyone got exactly the same hardware, and exactly the same revisions. But the other problem, is that GPS quality is open to opinion, because in some areas, roads are so far spread out that even inaccurate GPS works fine for driving. It really depends on your needs. But the facts are, the accuracy of the GPS isn't worth debating anyway currently, because Samsung have already told us they are "optimising" the GPS in Sept, which may make this unit as good as a garmin forerunner anyway. All any of us can tell you as that we'll know the TRUE potential of the unit after the september patch.
But for me anyway, I think the GPS is fine (I don't need perfect accuracy, even if I needed this as a fallback in a plane)

The GPS is bad to the point of being unusable for car navigation or fitness tracking. Yes you may get a lock in GGps test but when moving the reported location is all ov
er the place.

andrewluecke said:
Then there are those people who stare at the SNR/locked satelites for hours at end without checking whether the long/lat is actually correct, or the accuracy boundary (they see 5m accuracy, but don't actually check if it is accurate within 5 meters). I was one of these, until I realised that the accuracy boundary was wrong..
Click to expand...
Click to collapse
Case in point to illustrate what andrewluecke is trying to explain here about the accuracy not being exactly...well, accurate. Take a look at the attached screenshot. My GPS had a great fix with accuracy of 5m (the best it's able to report), stable for a few minutes, everything was working perfectly. Or so it seems. Except for the slight problem that I was actually standing where the red dot is... There's no scale on the screenshot, but it's a good 30-40 meters off. And that's quite common for me.

Case_ said:
Case in point to illustrate what andrewluecke is trying to explain here about the accuracy not being exactly...well, accurate. Take a look at the attached screenshot. My GPS had a great fix with accuracy of 5m (the best it's able to report), stable for a few minutes, everything was working perfectly. Or so it seems. Except for the slight problem that I was actually standing where the red dot is... There's no scale on the screenshot, but it's a good 30-40 meters off. And that's quite common for me.
Click to expand...
Click to collapse
Exactly Case_. The point of the accuracy measurement is to say "you are somewhere within this range". But, with the Galaxy S, it isn't, and that shouldn't happen, at least not as often as it does (except maybe at the beginning whilst obtaining a lock"). Professional systems have something known as RAIM and FDE which detect when the accuracy may be incorrect due to external factors (such as shonky satelite, or serious atmospheric interference). But this happens a LOT, and I would have thought it affects GPS units equally (unless the Garmin forerunners in fact DO ship with fault detection, which could explain it, in which case, Samsung should implement fault detection and exclusion too, to make it usable).
Anyway.. What I am trying to say is summed up easiest with Case's post.

Fatherboard said:
Acquiring signal is not the issue. I don't understand why people keep comparing signal to accuracy. it's not the same thing.
Click to expand...
Click to collapse
It most certainly is an issue. It takes a minute or longer to acquire a lock in some cases despite stationary and clear line of sight.
The people who stomp their feet with "The GPS is fine" are no different than the iPhone4 users who claim there is no attenuation in their phones.

In my case with the DDJG4 update, I see some minor issues.
Once in a while when I am at home (indoors with no visible satelites) my location shifts from bangalore to toronto. All my stuff changes to that. It looks like AGPS is not turned on or buggy becuase 80% of the times it works well. Does anybody else face the same problem ?
So when my phone takes me to toronto, i restart the phone and everythng is back to normal
SOmetimes, the location service fails to find where I am and shows Toronto in Google website. Is there anyway to avoid this.

It's just like what most people say, you can get a fix, and GPS seems fine. Try to use it, and it's a whole different story.
Somebody on the forum posted a link of a run, where the SGS GPS went everywere but on the straight line, it even made a hilarious loop. Too bad i can't find it.
People need to stop saying "Firmware updates fixed it already" as that's just not true.
Hah, there it is, posted by sjdean.
Desire, and SGS GPS.
http://maps.google.com/maps/ms?ie=U...52.48542,-1.742063&spn=0.014138,0.045319&z=15
http://maps.google.com/maps/ms?ie=U...=52.48082,-1.761761&spn=0.01414,0.045319&z=15

[Q] GPS - Will it ever be useable?

Hello There,
Apologies for what is another thread on GPS issues, but I need to vent!
I picked up a UK Galaxy S from ebay the other week and think all in all its a great phone (coming from a 3gs and HD7).
HOWEVER, the GPS is as good as worthless.
I have tried numerous guides I have found in line (altering settings in hidden menus and the like) and nothing seems to improve the accuracy of the device.
When using Google Navigation I often find that I have the blue sphere around the cursor, which will grow rather large at almost every junction or turn I come to. Tracking also seems to lag and jitter down roads. Going in a straight line is not so much of an issue, but when my speed or direction changes, the cursor will lag, at which point my location will usually be plotted way off.
Im on firmware 2.2, baseband 19000XXJPP and build number FROYO.XXJPO.
Is there anything I can do or should I just accept that the GPS is broken and forget about it? What puzzles me is that some people seem to have no issues what so ever. Whats the latest thinking on this issue?
Such a shame for a premium device.
Thanks

I've always just set mine to cold start and it's worked perfectly for me. It even better in JPX as it seems to get a lock much quicker when driving at speed.

There is a lot of interesting information in this thread regarding the GPS.
http://forum.xda-developers.com/showthread.php?t=860148
According to what's been said on this page, there may be a possibility of rewriting the GPS daemon:
http://forum.xda-developers.com/showthread.php?t=860148&page=10

You may also want to check out this thread in the Vibrant forum
http://forum.xda-developers.com/showthread.php?t=878970
probably the cause for people that can't get a lock to any or very little satellite. Obviously ignore all the parts about the firmware, etc. since they do not apply to our phone but the hardware should be similar.

i could only get a lock when i am cycling or jogging or even in my house. But never in a car why is that. Sometimes in the car i could see up to 8 satellites but cant get a lock

Running JPX with JK4 modem on my I9000M and it seems pretty decent. Got 5m or 10m lock consiatently within 15sec while driving in a city environment. I have been on firmwares in the past where it was totally broken. So right sw is important.
However my Aria can get 2m no problen even faster so still room for improvement. But I think Samsung is makingvit gradually better.
Sent from my GT-I9000 using XDA App

chambo622 said:
Running JPX with JK4 modem on my I9000M and it seems pretty decent. Got 5m or 10m lock consiatently within 15sec while driving in a city environment. I have been on firmwares in the past where it was totally broken. So right sw is important.
Click to expand...
Click to collapse
This has been my experience on JPX as well. Locking is very fast outdoors (including in the car), best accuracy I have managed is 5m. I can live with that I guess, since I don't really use the GPS all that much.

In the off chance that Samsung reads XDA, it is still not good enough. They have shown some improvement and they should, hopefully can, and hopefully will show more. Until Samsung stops SGS dev I have hope. From what I can see they are working harder than ever.
Sent from my GT-I9000 using XDA App

Just tilt the phone to landscape and make sure your phone is mounted as far under the windshield as possible. The sgs has a small antenna so where you mount it makes a big difference. Also for car navigation try using something like Sygic Mobile Maps instead of google nav and see if that works better.
I haven't had issues with the gps for months now.

Thanks for all the input and information guys. Some very good stuff here.
From reading some of the threads posted I can definitely see how my problems echo those of others.
Interestingly, for me, the issue seems far worse when in built up areas with lots of buildings. Someone in another thread noticed the same issue and suggested that perhaps the software could not deal with the GPS signal reflections.
Literally I will be driving down the country road near to my house with almost acceptable levels of accuracy and as soon as I turn into my village the signal will vanish almost completely.
I guess the biggest mystery to me is why some people have no issues at all, whilst others do. Having just got the phone I am not familiar with firmware revisions and the like. What is the JPX build and how does it differ from mine? What version is mine exactly (JPO)?

I had terrible GPS issues and was waiting for the update, but my co-worker also had a SGS and got the 2.2 update, it only made a slight difference to the accuracy.
I would recommend you get it fixed by Samsung, I'm convinced they have changed something in the hardware to make the GPS work. It just doens; make sense that some people have the issues and some people don't who are running exactly the same firmware.
Although if you got if from Ebay, it'll probably be out of warranty. It might not though, in which case I would class this kind of problem as a manufacturing defect, they might fix it for free.
Logicalstep

menu > settings > about phone. Under baseband and build number you will see what firmware you are on.
Just plug the phone into kies and see if you have an update, if all else fails take the phone back for a replacement or have the gps antenna replaced by samsung.

Already posted FW version (2.2 JPO).
I havent read any stories of samsung replacing GPS antennas as I understand this is a pretty common problem.

Don't think its still working in the UK...trying all the possible solutions. I am currently running JPK

LeeBear said:
You may also want to check out this thread in the Vibrant forum
http://forum.xda-developers.com/showthread.php?t=878970
probably the cause for people that can't get a lock to any or very little satellite. Obviously ignore all the parts about the firmware, etc. since they do not apply to our phone but the hardware should be similar.
Click to expand...
Click to collapse
This is interesting. FYI, the thread says that Vibrants made prior to October 2010 had a poor contact with the GPS antenna. There is a recommended physical fix.
I did a quick search and haven't seen any similar news for the international galaxy S. Is the Vibrant made by Samsung directly or through a subsidiary or OEM? There is no manufacture date on my phone or box though.

excuse me, i don't understand if there are a hardware change for galaxy s...
Can they confirm this?

Still can't believe I'm saying this but my gps went from zero to hero with jk4 froyo.
Initial lock can be slow, but is very accurate. One thing that I noticed last week that was odd, I typically use My Tracks, Nav, GPS Essentials and Gas Buddy, they all work great. Well last week I tried maps right after starting the gps radio, Maps could not get a lock. After starting one of the other apps and watching it get a lock, I went back into Maps and Maps could then find me no problem. It seems very weird to me that My Tracks can get a lock without a kickstart but Maps cannot when you would think the underlying software should be pretty near the same.
I have thoroughly tested my gps on journeys from fifty to one hundred miles and the tracks are fantastic, I've monitored my sats with gps essentials and I'm typically seeing 9-11 sats all locked on with one sat dropping intermittently.
I wish I could help the others but I can't cause I've done nothing to this phone, all stock, never modded, only updated using official methods and firmware.
Neil

My GPS was perfect initially, then poor on JPK, now perfect again on JPU. Seems more like a firmware/software issue, rather than hardware...

neil85ae86 said:
Still can't believe I'm saying this but my gps went from zero to hero with jk4 froyo.
Initial lock can be slow, but is very accurate. One thing that I noticed last week that was odd, I typically use My Tracks, Nav, GPS Essentials and Gas Buddy, they all work great. Well last week I tried maps right after starting the gps radio, Maps could not get a lock. After starting one of the other apps and watching it get a lock, I went back into Maps and Maps could then find me no problem. It seems very weird to me that My Tracks can get a lock without a kickstart but Maps cannot when you would think the underlying software should be pretty near the same.
I have thoroughly tested my gps on journeys from fifty to one hundred miles and the tracks are fantastic, I've monitored my sats with gps essentials and I'm typically seeing 9-11 sats all locked on with one sat dropping intermittently.
I wish I could help the others but I can't cause I've done nothing to this phone, all stock, never modded, only updated using official methods and firmware.
Neil
Click to expand...
Click to collapse
Interesting. Do you happen to know where I stand in the firmware order with JPO?
There is a sea of information regarding firmwares and such like and it can be difficult to figure exactly where one particular firmware stands in relation to the others.
Is yours newer?

your is newer
I would think, however I'm betting their are many little variations with hardware so not necessarily is the latest the best for all devices.
I'm quite confident that general performance is affecting the gps too and a lagfix might help. This is based on observations I made with my old 2.1 when the phone was busy and hot the gps would wander all over the place.
I hope you can get it resolved.
Neil

GPS problem: Works when in (fast) motion, unusable when stationary/slow

I have a strange problem with my Z3C's GPS (note: running CM12.1 nightlies). The problem did not occur when I used the phone for navigation last year, I first noticed it some time in January. So either my hardware has broken since last year or some upgrade broke my GPS.
Symptom: GPS does not work reliably when stationary or moving at slow speed (i.e. hiking or running). It takes forever to get a fix. Literally, many times I can put the device down outside with completely free view to the sky and after 15 minutes and more there is still no fix. The number of satellites picked up according to GPS Status&Monitor varies, most of the time 0 to 2, sometimes up to 8, then dropping again to 0 for no obvious reason, but even with 8 satellites no location?!? If I get a fix and record a track with OruxMaps, the quality is bad, many dropouts, very often the fix is lost. The GPS location and heading is drifting around when I'm standing stationary.
However, when I drive in car and use Here Maps or OruxMaps, the GPS is perfectly usable: Fix after about 30 secs in motion, good positioning quality, good tracks. Even when the car is standing, the position is not drifting. As soon as I leave the car and walk around, the positioning is soon degrading.
An issue with might be connected is that I cannot calibrate my compass: Every compass app claims that it has to be calibrated (even if the compass bearing itself seems to be pretty OK - every direction is where it is supposed to be). All the methods given on the net - waving 8, turning in all three axes - never got me the compass calibrated. I also refreshed AGPS, cleared caches and dalvik, regularly flash an upgraded CM nightly, no change.
As I'm using CM12.1, I cannot get into services menus, it seams.
Has anybody an idea what could be the reason for this strange behaviour?

Anyone having GPS issues?

I have a Note 9 on Sprint, and everytime I go to use Waze, or Gmaps, I do not get a GPS lock. Restarting the phone fixes it, but by the next day, the issue crops up again. Anyone else seeing this?

I too have issues GPS, my. device is constantly loosing its fix. It aquires 20+ Sats very fast, then fix within a few seconds (what is absolutely fine), but a few seconds later it loses the fix for a few moments, fix again, lose again, and this then goes on forever...
I now have the device (512 black Exynos ATO) since a week, but I started to observe this behavior since today!
How is the GPS performance of other users?

Had it happen again today. Went to use Waze, and it would not lock on. Installed GPS Test, and it shows no sats, nothing. Restarting the phone does fix it, but it's a pain. May have to contact Samsung/Sprint.

Done a bit of geocaching and it was spot on the whole time. Also used at work , both trouble. US unlocked 512gb
Sent from my Samsung SM-N960U1 using XDA Labs

Note 9 gpsfix lost
I have the sane issue..i have tey many thinks but i havent locate the source of the problem yet

I had similar issues but it turns out the location method is always set to "phone only", changing back to "high accuracy" fixes it.
Sent from my SM-N960W using Tapatalk

GPS signal is lost in Goolge Maps after update N960FXXU2ARJ1
I have a Note 9 since a few weeks now and it worked perfectly until I installed the latest update (N960FXXU2ARJ1), the one with the fix for the photo quality.
Now when i'm using Google Maps or Waze in my car with Android Auto my GPS loses fix. Google Maps constantly says that the GPS signal is lost.
GPS Status or GPS Essentials show 10 to 15 satellites in seconds with a GPS fix. So GPS seems to work fine. Only when driving the signal is lost.
Maybe there's a bug in the update?

Note 9 on ATT, sporadically it will ask me to turn on high accuracy setting and submit random anonymous data, but it keeps asking me, even when I haven't turned the GPS on. When I hit accept it turns the GPS on, I assume it's the weather widget or something like that needing a location.
My actual issue is I already hit accept and don't want to keep hitting accept and on top of that it will sometimes default to battery saver GPS which is useless.
I dont know how to keep it at either high accuracy or phone only when I go to turn on GPS.

Still having the issue....happened yesterday.

No issues here so far. I'm inside my apartment on the third floor, so sandwiched between apartments. I turned off WiFi to make sure it wasn't using my router. Opened Google Maps and it immediately locked on to me. Right down to what room I'm in.

I still don't know why my gps keeps trying to randomly turn on and asks me to accept or deny, regardless what I choose my GPS turns on without me turning it on.

Same issue here. Losing GPS and the finding a fix again shortly after. Happens in locations with no problem before and changes status rapidly. What's going on?

Looking for this problem in another forums I've discovered that the problem is related with Power Saving Mode in Samsung phones.
Yesterday I disabled the power saving mode and it worked flawlessly through Android Auto, even with the phone at the glove box I had a consistent and precise GPS fix.

ubiquist said:
Same issue here. Losing GPS and the finding a fix again shortly after. Happens in locations with no problem before and changes status rapidly. What's going on?
Click to expand...
Click to collapse
The answer is easier (and more disappointing) than anyone might guess.
The phone simply, has a mediocre GPS unit.
But it's a PREMIUM DEVICE?
Click to expand...
Click to collapse
And? No one cares. OnePlus has been featuring horrible GPS units since forever.
How do you know?! Can I verify?
Click to expand...
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Of course, you can verify. Install GPS Test (or any other GPS app from Store) on two or more phones of yours (including the Note 9, duh) and see the results.
Inside your house, outside, in a car.
So other devices have better GPS?
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Click to collapse
Only Notebookcheck (from what I saw) features GPS reviews, and they don't check all phones.
My experience. (from the phones I tried, owned, had. DB = Dual-Band GPS.)
Note 4: 5/5 || Always worked superb.
Note 9: 3.75/5 || Bit better signal than the 7 Pro, but puts you off by a street or two in the car. It's nothing good/great.
OnePlus 6T: 2/5 || Horrible. Even on a plain street has difficulties.
OnePlus 7 Pro [DB]: 3.5/5 || Not bad, not good. Has trouble finding you in the streets. Works OK until you enter a place with various roads (like an interchange).
HTC 10: 4.5/5 || Good. Stable, solid. Works great really.
Huawei Mate 10 Pro: 5/5 || Perfect.
Huawei P10 Plus: 4/5 || Had some trouble on foot, but okay-ish.
From what I saw, learned:
- Dual-band does NOT matter. If the module is bad, signal will be bad.
- Car glass can block out a good deal of the signal. Heated glass, heat-reflective glass. Ford, for example, uses both on cars. Does not mean it will like reduce signal by a LOT, but will make it worse.
- Phone cases matter. Even thicc plastic cases can reduce signal.
From what I read lately... the following high-end phones have good GPS modules.
- Pixel 3a: Good, thought not flagship SOC/internals/ram/storage. Only 1 camera.
- Huawei Mate 20 Pro: Great phone, albeit bit dated by now. Huawei updates are erratic, support/warranty is horrible. I had huge fights with them, since my family had 4 flagship Huawei devices. Court was always there, legal actions, threats. It's insanely bad. And now they have the Google problem (US vs China), and the phone is 100% locked down, no unlock possible. Unless you buy at external shops - but then you can't get warranty on them.
- Samsung A70: The horrible in-screen fingerprint reader ruins this otherwise perfectly great device.

GPS signal lost a few weeks ago and I tried everything but no signal. Is there anyone who can help with this topic? Galaxy Note 9 - SM-N960FZBDDBT