[Q] GPS problems. Can't get a fix! - Desire HD Q&A, Help & Troubleshooting

Hi all,
I have the Desire HD for 2 weeks now but I've only yesterday noted the gps doesn't seem to work... It's a complete stock model, no custom roms or radio's. I'ts just never able to get a fix! Are there other people with problems like this? Could my device be broken?
I have installed a app from the market that tests the gps and it finds no satelites most of the time except one time I checked it found 4 with a very bad signal... Even then in Google Maps or the HTC Locations it didn't get a fix.
Any ideas?

Bump! I have exactly the same problem. Any Advice?

same problem

i HAD this problem, but then i left the GPS on for an entire journey. 45 minutes later it had a fix and ive never had any problems getting a fix within a minute since.
i dont think the phone knows what side of the globe its on the first time, so maybe it just needs a loooong time the first time.

Most GPS devices need to download a file known as an almanac. This determines where satellites will be at specified times.
This file can take a while to download as GPS is purely passive. I'm not sure if the DHD is A-GPS (Assisted). This will download the almanac via mobile or wifi data.
This is why sometimes the first GPS lock can take a while.

Try these two programs:
http://www.appbrain.com/app/gps-status-toolbox/com.eclipsim.gpsstatus2
http://www.appbrain.com/app/gps-test/com.chartcross.gpstest
First one is great for diagnostic so it should tell you what is wrong.

I also have the same problem, been driving for about 30mins and nothing..
Sent from my Desire HD using Tapatalk

andyharney said:
Most GPS devices need to download a file known as an almanac. This determines where satellites will be at specified times.
This file can take a while to download as GPS is purely passive. I'm not sure if the DHD is A-GPS (Assisted). This will download the almanac via mobile or wifi data.
This is why sometimes the first GPS lock can take a while.
Click to expand...
Click to collapse
Ok......DHD has A-gps as well
seeing your posts, quite amazed how you did not know this (no pun intended)

dzn said:
Hi all,
I have the Desire HD for 2 weeks now but I've only yesterday noted the gps doesn't seem to work... It's a complete stock model, no custom roms or radio's. I'ts just never able to get a fix! Are there other people with problems like this? Could my device be broken?
I have installed a app from the market that tests the gps and it finds no satelites most of the time except one time I checked it found 4 with a very bad signal... Even then in Google Maps or the HTC Locations it didn't get a fix.
Any ideas?
Click to expand...
Click to collapse
1st gps-fix is a pain, after it will all get better....search for my posts, you'll see that this has been asked several times (don't want to be a b**ch but, please use the search button as well) and in general, 1st fix takes some time, 2nd is fast (like <2 min).
At this moment, while I thought my gps fix was very bad (and as I own one, if not the, of the 1st DHD batches, it was not abnormal to think that it also had gps probs) it now fixes within 1 minute....

Problematic piece of device for me for GPS.

Got mine a cpl of days ago , downloaded the apps above but still nothing i will give it one more try.
Sent from my Desire HD using Tapatalk

kermez said:
Try these two programs:
http://www.appbrain.com/app/gps-status-toolbox/com.eclipsim.gpsstatus2
http://www.appbrain.com/app/gps-test/com.chartcross.gpstest
First one is great for diagnostic so it should tell you what is wrong.
Click to expand...
Click to collapse
I tried both GPS apps. And immediately after that, I was able to get GPS satellite lock on within 20s.

Guys regarding the GPS, all of us we face an issue. It can not lock the satellites quickly. Especially for the people like me who are HTC HD2 owners as well. I was waiting only few seconds. (cooked rom). We MUST forget that now. It's an issue for all of the android devices. Even with the device of the Nexus. So we must live with that. Sometimes it will lock the satellites in 1 min or 30 secs, some other time in 2-3 mins. I searched also in the internet and i found so many complains regarding the GPS and hopefully not only from DHD users

f9cator said:
I tried both GPS apps. And immediately after that, I was able to get GPS satellite lock on within 20s.
Click to expand...
Click to collapse
Yep, I had also that problem but then red at forums that only way to lock as fast as you can satellite is to use first one for locking over internet and after that it's much easier to find satellite. Whenever you have problem with locking or need gps asap first program should provide you with fast satellite find.
Btw gps on dhd is so good that I have sold my old garmin - simply it's obsolete and now I have only to purchase official car holder.

Most of the times is more difficult to get a fix in a speeding car.
In the opposite case is generally faster to get a sat fix.

So I've been using my DHD for 3 weeks now (stock model as well, no root) and here are two issues with GPS that I noticed and have no idea what to do with it.
1. The same problem as described in first post. Every once in a while my GPS just cannot get a fix. I installed GPS Test app. Normally it finds around 6-7 satellites, they are all in use, the yellow indicator in GPS status bar goes green and my location appears on mini-map.
However there are situations when GPS Test says that there is 1 to 5 satelites in view, later on they also apper to be in use, but GPS status doesn't change to green and my actual location doesn't show. It's not a problem of visibility or my location - the GPS can get a fix today and not work tomorrow at the very same place.
I have no idea if this can be fixed, so any help appreciated.
2. This is not really an issue, just something that I find quite disturbing. I'm using this traffic app (Yandex Maps for those of you in Russia). It shows current traffic condition on the map + your current location if you have GPS. So each time I lock my DHD (press the button on the top) the GPS is immedietly switched off. So when I unlock the screen to see the map again it takes from few seconds to a minute or even more to update my current position. Sometimes it doesn't happen at all (see problem #1). I understand it's probably done to save battery but I would prefer continuously working GPS than saving battery. Is there any way to set GPS to always working mode?
Thanks in advance to everyone who can help. Cheers

Hi,
I read all you guys said and after trying both the apps and refreshing my agps data manually I now get 6-7 satellites which is good I think?
So for all of you with the same problem, just stay outside for a moment and make sure you have a data-connection. Then use the GPS Status app and refresh your agps data manually. It should work... It did for me!
Ps. I think my Desire, not the HD, used to see 11 satellites? Is that possible? Does this mean 6-7 is kind of weak?

dzn said:
Hi,
I read all you guys said and after trying both the apps and refreshing my agps data manually I now get 6-7 satellites which is good I think?
So for all of you with the same problem, just stay outside for a moment and make sure you have a data-connection. Then use the GPS Status app and refresh your agps data manually. It should work... It did for me!
Ps. I think my Desire, not the HD, used to see 11 satellites? Is that possible? Does this mean 6-7 is kind of weak?
Click to expand...
Click to collapse
Just to make it clear - to manually refresh AGPS using GPS Status - you need to go to Menu->Tools->Manage A-GPS state->Download?
I'm not outside now, but will try it once I have problems getting a fix.
And yes, 11 sats is possible. 6-7 is more than enough though.

Stand still to get a fix? Harder when you are speedy, I think.
Sent from my Desire HD using XDA App

Your movement speed has no impact on how quickly you get a lock. Remember, these satellites are in orbit traveling alot faster than your 30 - 70mph.

Related

[Q] Problem with GPS

I have a problem with my Defy.
The GPS doesn't seem to work properly. I've tested it with GPS Status & GPS Test...it detects satellites but doesn't use any of them to locate the cell phone.
A few days ago, I've succeed to get a localization but since it doesn't work.
I've just reboot it so that I'll have the manufacturing settings but, it still doesn't work...
Can someone be of any help ?
Thanks.
ernold said:
I have a problem with my Defy.
The GPS doesn't seem to work properly. I've tested it with GPS Status & GPS Test...it detects satellites but doesn't use any of them to locate the cell phone.
A few days ago, I've succeed to get a localization but since it doesn't work.
I've just reboot it so that I'll have the manufacturing settings but, it still doesn't work...
Can someone be of any help ?
Thanks.
Click to expand...
Click to collapse
Have you tried calibrating the compass in the settings? I had what sounds like a similar problem and I did that it worked for me.
Have you tried going into airplane mode, then using the GPS?
The compass is calibrated.
I've tried to turn on the airplane mode & then to launch the gps...same result no satellite in use, no localization...
I tried the GPS today, no airplain mode, defy was working as usual. I had to wait quite long time to get the fix but then no issues. FYI compass was already calibrated.
Since your defy is able to detect the satellites it should not be an hardware issue, i guess you were using pre-installed gmaps and navigator, have you tried any other software which makes use of gps location? (e.g. TrackMe)
Since your defy is able to detect the satellites it should not be an hardware issue, i guess you were using pre-installed gmaps and navigator, have you tried any other software which makes use of gps location? (e.g. TrackMe)
Click to expand...
Click to collapse
Yes, that's what I think, it shouldn't be a hardware issue...
I tried with the apps GPS test & GPS status which were not pre-installed and it doesn't work either...
ernold said:
Yes, that's what I think, it shouldn't be a hardware issue...
I tried with the apps GPS test & GPS status which were not pre-installed and it doesn't work either...
Click to expand...
Click to collapse
I can't figure out what's causing your issue... but, take a look here:
https://supportforums.motorola.com/thread/40896
maybe it could be helpful, second post of cheaplikeafox, he's talking about a gps reset (made through GPS status) which solved the problem. Did you try that specific option in GPS status?
Sadly, I've already tried...arf...I don't what to do.
Maybe I should try with other Motorola phones' owners...
ernold said:
Sadly, I've already tried...arf...I don't what to do.
Maybe I should try with other Motorola phones' owners...
Click to expand...
Click to collapse
Just to be sure, are you trying to use the GPS without being in "maps" that came with the phone? But on a separate set of installed maps? Except for the link above, I don't see GPS as an issue on the Motorola forums.
If I turn on network nav. and go into maps, my location is off by from two miles to forty miles. If I then turn on GPS it will correct my location within thirty second (time, that is). Turn off network nav., go back into maps and hit location and it corrects within 10-15 seconds using just GPS.
FWIW I just bought and downloaded Copilot live for North America ($5) Shut off data and ran on GPS -- it loaded very quickly. Of course it's pulling maps off the SD, but there was no lag in the GPS.
Same issue here.
Bought a defy (made in brazil) today and no gps (endomondo, gps test, gps status).
I already have a x10, and their gps always works.
carlosklein said:
Same issue here.
Bought a defy (made in brazil) today and no gps (endomondo, gps test, gps status).
I already have a x10, and their gps always works.
Click to expand...
Click to collapse
When I first tried GPS on my phone it took so long to "kick in" I thought the phone was broken. Finally it did. I later got "GPS status" and it picks the satellites up right away. However, I believe you must have your google maps "Maps" turned on or the GPS won't work in the stock phone.
How much time your gps needed in the first time? I im trying right now.
In google maps: My location: Accurate to 70 meters (wireless method).
In endomondo: Locating satellites
In Gps Test: In view 1, In Use 0, Gps On (yellow), Accuracy (feet): 0
After about 1 hour, i am getting 2 sats in view on Gps test, but no one in use.
After hours, i am getting 2 sattelites in GPS Test (sometimes 3). But the color of the bars (SNR Color, according the documentation) is white. Not working...
On my xperia, i am getting 9 sattelites (yellow and green).
Make sure you're not on WiFi
carlosklein said:
After hours, i am getting 2 sattelites in GPS Test (sometimes 3). But the color of the bars (SNR Color, according the documentation) is white. Not working...
On my xperia, i am getting 9 sattelites (yellow and green).
Click to expand...
Click to collapse
My previous phone was an xperia x1 too, yes GPS was much much better. More than a issue with defy it looks like Android is not so brilliant in dealing with GPS.
I need long time to get my position fixed (could it be the lack of QuickGPS??), and it seems many apps can't correctly display the satellites while the device is searching for a fix.
It gets better if i have google maps app opened in background.
Finally got gps working.
I made a few things (not sure what work...)
- Factory reset
- Install a bunch of softwares (Endomondo, GPS Test, WisePilot, TrackerBooster)
What work (i think)
- Leave my phone with TrackerBooster and GPS Test turned on, in open space (a bench on a park) for about 45 minutes (airplane mode off, wifi on and connected, 3g on). In the early minutes, GPS Test only find a few satellites (4 or 5). Suddenly 10 satellites appear and change the color to yellow and green (it was white). Working!
Thanks all!
ps: Defy is better than X10. Even motoblur is better than TimeScape (IMOHO).
carlosklein said:
Finally got gps working.
ps: Defy is better than X10. Even motoblur is better than TimeScape (IMOHO).
Click to expand...
Click to collapse
When i read "xperia" i thought about x1, anyway, i agree defy is better than xperia (them all) except for GPS. With my x1, in open spaces, i got 10-11 satellites in just 2 minutes (without QuickGPS) and it needed about 20 seconds when QuickGPS was working.

Reasonable GPS lock workaround w/o root

I've been having the same trouble as many have with the Epic 4G Touch's GPS. It takes forever, if ever, to get a GPS lock. I can have a GPS lock, go into McDonald's and come back out and it will be cold starting again. Ridiculous performance.
Rebooting the phone is a pain but seemed to be the only thing that worked every time. After reading a lot of different forums about this problem, I noticed a conservation that speculated that the problem wasn't specifically the GPS itself, but rather was location services. Apparently there are some more recent location services being flashed to phones and the GPS works great. It would make some sense that this is the problem because after a reboot I would think that the phone would reset location services when it turns back on. Further comments in those threads suggests that turning the phone to airplane mode and back also works around this problem.
I've been playing around with this for awhile today and it does appear that going to airplane mode and back helps the situation. I used Tasker to create a task that does this: turns on airplane mode, waits 20 seconds, turns off airplane mode, then launches GPS Test automatically. I created a widget icon for this task. I never attempt to get a GPS fix indoors. What I do is that when I walk outside on the way to the car I hit the widget. I let the phone do it's thing and by the time I get in the car and ready to go, I've had a GPS lock every time today. When I get in the car, I close GPS Test and start whatever app I want to navigate with.
So far, this method has yet to let me down. We will see how the weekend goes.
That's very interesting, I'm gonna try that and see if it helps. I also noticed that getting a lock by starting Navigation right away is almost impossible. It always helps me to Getty a lock with another app first. Telenave seems to work best for me.
This (among the countless others) workaround is fine and I thank you for it.
However I'd really like to know just what the hell is going on with the gps on these phones.
Some folks are fine with the gps working fine in any circumstances. While others have to wave dead chickens and performance some sort of incantation to get gps to be even reasonable. Still others have some issues but can work them out via flashing of modems and what not. Some had to replace their phone with another e4gt and it was fine there after. WTF?
The gps on my old GS2 i9100 was awesome. I never had to give it a second thought or worry about it losing gps lock or taking eons to get even a meager lock. This is entirely not the case with my current E4GT. Damn thing. If the update doesn't fix anything then I'm gonna replace it.
Is there just a batch of bad hardware out there? Is the gps sleeping when it shouldn't? Why does one fix seem to work for one phone but not another? Talk about manufacturer inconsistentancy, geez.
Does the sprint version of the galaxy nexus have these sorts of issues?
Heavy sigh.
Try GPS Status, it's available on the market. I just got a lock on 8/8 satellites within 5 seconds inside my apartment.
Google maps seems to take a little bit longer obtaining a GPS lock but after running GPS Status it seems much faster.
I believe that it does not require root, and the best part is that you do not have to flash back to GB, to get a lock so that you can flash ICS again.
Sent from my SPH-D710 using xda premium
I would flash back....worked ever sense i did
It's my phone...any mis takes...sry
tubasteve said:
I would flash back....worked ever sense i did
It's my phone...any mis takes...sry
Click to expand...
Click to collapse
Why flash back when this is easier?
There is no reason to have to flash back to GB, check out this article I found with a quick google search.
http://m.lifehacker.com/5873007/how-can-i-fix-my-androids-crappy-gps
Sent from my SPH-D710 using xda premium
I'm blue in the face over this issue. Invariably, you get "I get a lock on 12 satellites from my concrete bunker 12 feet underground" responses (not helpful, BTW), yet I can't get a lock in the wide-open spaces. UNLESS, I reboot, start up GPS Test or GPS Tracker, or bounce back and forth from airplane mode, murder a chicken, or whatever.
It's totally hit or miss with this device. Yes, I can get a GOOD lock indoors, but only after I reboot, run GPS Test, and then go back inside. Not exactly convenient when you're hurtling down the freeway at 70mph.
It's frustrating to hear of the great experiences of other users when my experience has been so inconsistent. I rely on my GPS for directions, and for tracking my morning runs. It's a real pisser when it takes 4 minutes for the GPS to finally lock, which ruins any useful statistics for Runkeeper.
I know this is just a rant, but at least I feel better.
Try what I mentioned with GPS Status from the market. It might not be a permanent fix but it will help with getting a lock on your location.
1. Download GPS Status from the market.
2. Turn on GPS.
3. Open GPS Status.
4. Bring up the menu and select tools.
5. Manage A-GPS State.
6. Turn off GPS from the toggle in the status bar.
7. Select the option to Reset.
8. Select the option to Download GPS assistance.
9. Close the application.
10. Turn GPS back on and watch it lock on.
Sent from my SPH-D710 using xda premium
I had this exact same problem after 2 visits to Sprint they swapped my phone. The new one has had perfect GPS no matter what i flash. I just think there is batches of phones with faulty hardware
Sent from my SPH-D710 using xda premium
can you tell us how you did this in tasker?
thanks
jalanjkcarp said:
I've been having the same trouble as many have with the Epic 4G Touch's GPS. It takes forever, if ever, to get a GPS lock. I can have a GPS lock, go into McDonald's and come back out and it will be cold starting again. Ridiculous performance.
Rebooting the phone is a pain but seemed to be the only thing that worked every time. After reading a lot of different forums about this problem, I noticed a conservation that speculated that the problem wasn't specifically the GPS itself, but rather was location services. Apparently there are some more recent location services being flashed to phones and the GPS works great. It would make some sense that this is the problem because after a reboot I would think that the phone would reset location services when it turns back on. Further comments in those threads suggests that turning the phone to airplane mode and back also works around this problem.
I've been playing around with this for awhile today and it does appear that going to airplane mode and back helps the situation. I used Tasker to create a task that does this: turns on airplane mode, waits 20 seconds, turns off airplane mode, then launches GPS Test automatically. I created a widget icon for this task. I never attempt to get a GPS fix indoors. What I do is that when I walk outside on the way to the car I hit the widget. I let the phone do it's thing and by the time I get in the car and ready to go, I've had a GPS lock every time today. When I get in the car, I close GPS Test and start whatever app I want to navigate with.
So far, this method has yet to let me down. We will see how the weekend goes.
Click to expand...
Click to collapse
to: rgregg504
rgregg504 said:
I had this exact same problem after 2 visits to Sprint they swapped my phone. The new one has had perfect GPS no matter what i flash. I just think there is batches of phones with faulty hardware
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I agree, after all my research and attempts at fixing my phone; the only option left to me is replacement. I'm tired of reading forums about it (yet here I am) and it's whole thing is just silly.
I don't suppose you have any documentation on the serial number for the phone that had a ****ty GPS? It would be awesome if there could be some sort of documentation of which patch of phones is bad.

Nexus 7 LTE Deb Multitouch and GPS issue

Hi anyone experiencing multitouch and/or GPS issues?
My friend is in Canada and just bought one for me. She's coming back to Singapore in 2 weeks and is helping me test it first in Canada. The unit prompted to update when started up which she did. I'm waiting for her to reply me what build it is at now.
I told her to download the Yet Another Multitouch Test and she tried dragging her fingers around. With a single finger a red blob follows her finger around but sometimes a blue blob appears right next to it briefly. With 2 fingers, when she was dragging 2 fingers around a green blob appeared a few cm away once. She did say she noticed sometimes using it normally that it was a bit unresponsive/slow.
For the GPS, I wasn't sure how to test it. I got her to use either maps or GPS Status and Toolbox. The first time she said it looked like the gps fix was ok for 45minutes (in maps). She DID NOT REBOOT and it managed to relock. The 2nd time was on GPS Status 18 minutes. The 3rd time the fix lasted for 19 minutes. But after that one, the 4th time it couldn't find a lock even after waiting more than an hour. She was testing it indoors so I asked her to leave the gps status toolbox on while driving to have a better test. Anyone experienced this? I thought that the GPS issue was such that once you lost the status, you couldn't get it back without reboot. But my friend said the relock was successful at least twice (indoors).
I also told her to try clearing the AGPS data and refresh data using the GPS Status and Toolbox, she will try that later.
quarian said:
Hi anyone experiencing multitouch and/or GPS issues?
My friend is in Canada and just bought one for me. She's coming back to Singapore in 2 weeks and is helping me test it first in Canada. The unit prompted to update when started up which she did. I'm waiting for her to reply me what build it is at now.
I told her to download the Yet Another Multitouch Test and she tried dragging her fingers around. With a single finger a red blob follows her finger around but sometimes a blue blob appears right next to it briefly. With 2 fingers, when she was dragging 2 fingers around a green blob appeared a few cm away once. She did say she noticed sometimes using it normally that it was a bit unresponsive/slow.
For the GPS, I wasn't sure how to test it. I got her to use either maps or GPS Status and Toolbox. The first time she said it looked like the gps fix was ok for 45minutes (in maps). She DID NOT REBOOT and it managed to relock. The 2nd time was on GPS Status 18 minutes. The 3rd time the fix lasted for 19 minutes. But after that one, the 4th time it couldn't find a lock even after waiting more than an hour. She was testing it indoors so I asked her to leave the gps status toolbox on while driving to have a better test. Anyone experienced this? I thought that the GPS issue was such that once you lost the status, you couldn't get it back without reboot. But my friend said the relock was successful at least twice (indoors).
I also told her to try clearing the AGPS data and refresh data using the GPS Status and Toolbox, she will try that later.
Click to expand...
Click to collapse
I had the GPS issue that was fixed with a software update. Prior to the update, when I tried to use Waze or Google navigation, it would lose the GPS lock within 15 minutes, often sooner. After the update, I have never lost GPS lock during navigation. My longest drives are about 2 hours. Tell your friend to test it during a long drive, but if you got the software update, you should be all set.
I can't comment regarding the multi touch issue, I haven't noticed any such problems on either of my N7 tablets (WiFi, and LTE), and haven't tested for it.
Sent from my GT-P7510 using xda app-developers app
multitouch problem seems very common, since I have read a lot of complaint related to the touch screen, I checked my screen as soon as I got it , and tested with Antutu which is a universal test tool, the result was frustrating as well-- UPPER PART of the screen functions insensitively compared to the lower part. It is a hardware malfunction clearly. What the hell did Asus react to it? We'll wait and see.
Sent from my Nexus 7 using XDA Premium 4 mobile app
Well update..my friend brought the nexus 7 out for a drive. Just a normal journey, not a long one. Am I right in saying the ones with problems cannot relock without rebooting and if mine can relock without reboot it means it's got normal working GPS?
Also, the build (after the initial update) is JLS36C. Which according to this Deb thread: http://forum.xda-developers.com/showthread.php?t=2448352 should be the latest I think.

GPS/Navigation problem... app, mobile or something else?

Hi, I'm really not sure what to make of this problem so maybe you can help me out pinpointing the problem so I can take care of it. I've observed several things and don't know how to connect the dots, or if there's any connection, so let me list what I've been seeing:
1 - I've got TomTom to use on my car.
2 - Worked wonderfully well on the first week or so. Fast to lock onto satellites (10 to 20 seconds), accurate and stable without loosing the lock.
3 - I've noticed from day one that it tends to to locate me a few meters back than what I'm actually am, so if I come about two streets very near one another, the turn on the correct one is a bit hard to to tell without looking at the map.
4 - A week ago, the phone started to take longer to lock my position and won't keep it, it often loses connection with the satellites.
5 - Also, the problem is a lot worse if I stop. It might be accurate while I'm driving over 50mph but, if I stop, the direction I'm facing is lost and then my location. It will place me within 50m to 100m of where I am, which could mean on another street. It has become useless for the slow paced city driving, with red lights and slow traffic.
6 - I haven't changed ROMs or anything major but I have downloaded a few apps, might have taken a few others out, the usual stuff... I'm using Android Revolution HD 31.2.
7 - I've noticed that a lot of times, in regular mobile use, the GPS icon shows up trying to locate my position, even with GPS off. Might be that I have accepted Google's location request or is embedded on some app. Don't know if this has any relation to the workings of navigation or with the timeframe the problem occurred.
8 - A final though... I've always had this problem with standalone GPS devices... They work fine for a few weeks/couple of months and then they seem to deteriorate, having a hard time to locate my position, maintaining a good connection, etc. I have no idea on why this is or if there's some sort of cache I should be cleaning.
Oh, and this happens regardless of the weather... overcasted, rainy days or clear skies, it's all the same.
So any thoughts on how to pinpoint the source of the problem so I can fix it?
Cheers!
Renato
Anyone?

GPS slow initial fix with 4g on

Hello,
I have this strange problem with the Samsung A50 given to me by my company (this to say that my possibilities to mess around "under the bonnet" are quite limited).
The first GPS fix from a "cold" start (that is, at reboot or after some hours from last use of an app using location) is EXTREMELY slow. It may take also 10 minutes or more, in full air and with good weather. If I control with the app GPS Status and Toolbox (or similar apps giving details on GPS sensors status) the phone "sees" a LOT of satellites, up to 20 or more, but none of them is fixed, they all are "yellow", and the location is not set.
When it finally makes it, one way or another, then the fix is stable and even if lost, it gets re-fixed soon in some seconds... For an hour or two.
Naturally this makes most app using GPS highly frustrating to use - Before running with Strava or navigating with Waze I have to wait 10-15 minutes for the GPS to fix! Google Maps is somehow an exception because it uses the Google "fused" location which, though not as accurate as GPS, allows nevertheless tp have an approx lpcation pretty quickly while the GPS makes its slooow fix.
But now the strangest thing: if I reboot the phone without SIM cards inside, the GPS works like a charm and fixes satellites on a matter pf 30 seconds max! Moreover, if I turn off the 4g on both SIM and then reboot the phone again, also it all works well. I tried multiple times and this cannot be a casual result. I also tried making a a full reset of the phone: the behavior is exactly the same. Seems like something in the 4G system causes some software conflict with GPS making it crappy.
Firmware is the latest (SH2 sept 2019).
Am I the only one? This looks to me definitely a software issue, not an hardware one, do you agree? Do any of you have commwnts, suggestions, ideas?
Thanks
Looks like I'm the only one with this issue?
Inviato dal mio SM-A505FN utilizzando Tapatalk
And what about on wifi? Did you tried this?
The only thing that i can think of is on 4g probably it struggles to get agps data from the internet (probably cant connect to servers) but not trying to receive the data from the satellites themselves because it think it can get it from the internet. This is just wild guess.
I just tried getting GPS via cell data while taking a dump (inside the house), the GPS lock was instant in Sygic, also 15 satellites locked on.
I am having this same issue with an A50 I just purchased. I use GaiaGPS quite a lot and it works horribly on this phone. My tracks are a total mess. To the point that it is not usable. I will be returning the phone (if I can) if this issue is not resolved, as it is a key feature for me.

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