[Q] GPS problem: fix -> lose fix -> fix -> lose fix - Nexus One Q&A, Help & Troubleshooting

I'm using CM7 on my Nexus One. The issue happened twice; right now the GPS is working fine but I'd like to find what can be done to diagnose this, or if there's anyone out there who already knows a fix...
Here's what it looks like:
I turn on the GPS, open GNavigation (or Waze, or Maps). GPS gets a fix but when I start driving, it doesn't update my location. After a while, it loses the fix, the reacquires it, still doesn't update it, loses fix again, and this keeps happening as 5-minute long loops.
Here's how it looks like in the GPS Status app:
It's as if GPS gets a fix, then hangs (my coordinate are not updated in GPS Status app) without giving any errors, then turns itself off and on, gets a fix again, rinse and repeat.
What I tried:
Reset and download A-GPS state. Reset dalvik cache using recovery. Reset A-GPS state, turn off GPS, turn off phone, turn on phone (and variations of this). Didn't work...
What worked:
Finally I got sick of it and took out my real GPS device. I didn't turn off nexus' navigation (wanted to torture it a bit out of spite and frustration).
After driving for 40 minutes (and nexus finding, losing, finding ... GPS fixes as I was driving), suddenly it got a fix, and it just started working again without problems.
Anyone know what's happening here and how to fix it? Thanks so much in advance

You are not alone
Rebooting almost always fixes it for me. Unfortunately it takes several minutes.
Airplane mode also instantly fixes it, but then you lose A-GPS and all communications.

Radio updating may fix the problem.
Try flashing a latest radio image.

Latest radio
Thanks. I guess a new, functioning radio would indeed solve the problem.
However, I already have the latest radio flashed: 32.50.0032U_5.12.00.08 for the Nexus One. Earlier radios have other heavy shortcomings, so they are not a good option.

i wold know if it was good be4
cuz it was worked fine but now ive same problem
i thought this problem form rom
but now i dont know the reson
sorry 4 broken eng
thx

I am waiting for ICS and hope that will fix it.

Related

[Q]Update to 2.3.4 offcial version - wifi, gps, signal problems

Hello everyone,
So i upgraded my O2X like a month ago... and since then i have had issues with it...
I've upgraded to 2.3.4 from LG official updates... and since my upgrade i've got some serious issue's with my phone..
1. Alot of times i can't send any messages, and i have to retry like 2-4 times before it's working...
2. people can't call me from time to time.... it just hang's up from the person trying to call me...
3. sometimes when talking to somebody, the sound get's all wierd like a scrathing sound with other mixed wierd other sounds... it goes like that for about 5-15 seconds.. Then it stops and and often then i can't her the other person anymore... but sometimes it also goes back to normal..
4. Signal is lost sometimes... the signal bar indicates that their's no phone service.... and then comes back after like 5-15 seconds...
5. wifi aint working anymore... can't use the internet..
6. today i needed to use the gps... but when it finally has found the route i need.. it aint "updating" where im driving..... so i have to close the gps, and then start it again so i can get a update of where the car is located.. its like a "still picture" if you get me...
Please note that i have NOT done any factory reset of the phone after 2.3.4 upgrade... as it cant be true that i need to do such thing everytime an update is launched from LG just to get the phone working....
i dont have anything else installed, like CM or even rooted or anything.. its all stock rom from LG...
Anyone has some ideas or clues of how i can fix these issues?
i have met all of these issues as well. i have to add another issue,"wifi turn off automatically".
Sent from my LG-P990 using XDA App
have you been able to fix some of the issues abczhou?
abczhou said:
i have met all of these issues as well. i have to add another issue,"wifi turn off automatically".
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
Maybe a stupid comment of me , but have you already looked at the wifi-advanced settings? because there you can switch off the "wifi power saving or sleepmode".
You should also check all settings because everything is put back to factory settings..
same freaking issues
What a fail from LG. I bought this phone recently for my wife and I was accusing her being crazy!
I changed all the settigns in wifi for battery effeciency to keept it always on no matter what! wifi keeps disconnecting at times. Even during skype calls and needs to restart wifi(deactivate->activate).
Anyone having a solution for that issues? Otherwise a custom ROM is going to solve this? And if so please propose one for simple use.
It is so FAIL from LG releasing a ROM hat does not work as it should with default values. Android is for users also, not just geeks.
SotirisBK said:
What a fail from LG. I bought this phone recently for my wife and I was accusing her being crazy!
I changed all the settigns in wifi for battery effeciency to keept it always on no matter what! wifi keeps disconnecting at times. Even during skype calls and needs to restart wifi(deactivate->activate).
Anyone having a solution for that issues? Otherwise a custom ROM is going to solve this? And if so please propose one for simple use.
It is so FAIL from LG releasing a ROM hat does not work as it should with default values. Android is for users also, not just geeks.
Click to expand...
Click to collapse
Have you done a 'factory reset' since you updated the device?
You shouldn't lose any stuff on the card, only the applications that were on the phone as such. (But better than sorry to make a backup just in case). Oh of course you will lose contacts unless they are synced with another source as well).
GPS> Make sure you leave the GPS turned on ALL the time. It won't use it unless it has too, and if you start the phone with gps turned off, it won't connect to gps properly. Wifi ? er.. perhaps you need to go into the wifi settings and have a fiddle around with the sleep mode? Or perhaps increase the screen timeout so it doesn't keep disconnecting the wifi so often?
Get a Samsung for sure!!
Scougar said:
Have you done a 'factory reset' since you updated the device?
You shouldn't lose any stuff on the card, only the applications that were on the phone as such. (But better than sorry to make a backup just in case). Oh of course you will lose contacts unless they are synced with another source as well).
GPS> Make sure you leave the GPS turned on ALL the time. It won't use it unless it has too, and if you start the phone with gps turned off, it won't connect to gps properly. Wifi ? er.. perhaps you need to go into the wifi settings and have a fiddle around with the sleep mode? Or perhaps increase the screen timeout so it doesn't keep disconnecting the wifi so often?
Click to expand...
Click to collapse
I will try this when I return from my trip. As I remember I have deactivated sleep mode of WiFi and gps is always on also.
Stay away from this suckiing LG!! Get a samsung!

GPS behavior - normal after reboot or from cold?

Can someone help me confirm if this is normal GPS behavior? I'm rooted on ANG3 with the latest maps 9.2.0.
If I start maps after a reboot, or when GPS is "cold" like using for the first time in the morning, the GPS indicator in the status bar will come on for a second or two, then just turn off - at which time maps stops updating my location. It does this same behavior with other GPS apps, including navigation. I found out if I wait like 10 seconds, the GPS status bar indicator comes back on and remains on - from then on behaving normally. After that, I can close maps, reopen, use navigation, use GPS status or GPS test apps, etc., all normally.
I had initially been closing whatever GPS app I was using and reopening when this happened, and the problems kept repeating...but if I found out if I just wait for those 10 seconds or so, then the problem is completely resolved until the next reboot or cold start (like if I wait 10 hours to use a GPS app again).
So do other people have that same GPS behavior immediately after a reboot or from a cold GPS start - where GPS only comes on for a second or two, then turns off for 10 seconds or so, then comes back on and will remain on and work normally?
If not, any idea what the problem might be? I've tried clearing cache of gps apps and clearing dalvik cache...but maybe this is normal behavior?
No problems with my gps here, i personally keep it turned off until i need to though so not sure if that factors in to it, you may need to take it in because that sounds like a possible hardware issue. Have you tried a factory reset/reflashing?
Sent from my SM-G900A using Tapatalk
Thanks for the reply. Yeah, I wonder if leaving your gps off mostly, and only turning it on when needed might affect the behavior I'm talking about. I haven't tried a factory reset yet...was hoping to avoid that, and especially didn't want to do it if others have the same gps behavior. Maybe someone else who leaves gps enabled can test this out by rebooting and opening maps?
netter123 said:
Thanks for the reply. Yeah, I wonder if leaving your gps off mostly, and only turning it on when needed might affect the behavior I'm talking about. I haven't tried a factory reset yet...was hoping to avoid that, and especially didn't want to do it if others have the same gps behavior. Maybe someone else who leaves gps enabled can test this out by rebooting and opening maps?
Click to expand...
Click to collapse
Hate to be the bearer of bad news and all that, but i feel like if it was that big of an issue there would be more people posting about it. I know you don't want to but a factory reset fixes most issues, i may be wrong though so feel free to wait it out and see if someone has a solution :/
Sent from my SM-G900A using Tapatalk
I had a chance to check the behavior of my wife's Galaxy Alpha (uprooted). Actually, her gps seems to act similarly except that the period of time it spontaneously turns off is more like 5 seconds instead of 10. But that leading me to think what I'm seeing is normal. I'd still appreciate some confirmation though, so if someone could:
1. Turn on gps
2. Reboot
3. Open maps and observe the gps indicator in the status bar for about 30 seconds
4. Report if the indicator disappears during that time and for how long
netter123 said:
I had a chance to check the behavior of my wife's Galaxy Alpha (uprooted). Actually, her gps seems to act similarly except that the period of time it spontaneously turns off is more like 5 seconds instead of 10. But that leading me to think what I'm seeing is normal. I'd still appreciate some confirmation though, so if someone could:
1. Turn on gps
2. Reboot
3. Open maps and observe the gps indicator in the status bar for about 30 seconds
4. Report if the indicator disappears during that time and for how long
Click to expand...
Click to collapse
I gave it a shot, no issues here, im no where near stock though so im not sure how much thats worth.
Sent from my SM-G900A using Tapatalk
netter123 said:
Can someone help me confirm if this is normal GPS behavior? I'm rooted on ANG3 with the latest maps 9.2.0.
If I start maps after a reboot, or when GPS is "cold" like using for the first time in the morning, the GPS indicator in the status bar will come on for a second or two, then just turn off - at which time maps stops updating my location. It does this same behavior with other GPS apps, including navigation. I found out if I wait like 10 seconds, the GPS status bar indicator comes back on and remains on - from then on behaving normally. After that, I can close maps, reopen, use navigation, use GPS status or GPS test apps, etc., all normally.
I had initially been closing whatever GPS app I was using and reopening when this happened, and the problems kept repeating...but if I found out if I just wait for those 10 seconds or so, then the problem is completely resolved until the next reboot or cold start (like if I wait 10 hours to use a GPS app again).
So do other people have that same GPS behavior immediately after a reboot or from a cold GPS start - where GPS only comes on for a second or two, then turns off for 10 seconds or so, then comes back on and will remain on and work normally?
If not, any idea what the problem might be? I've tried clearing cache of gps apps and clearing dalvik cache...but maybe this is normal behavior?
Click to expand...
Click to collapse
Try this : http://forum.xda-developers.com/showthread.php?p=56982923
Sent from my SAMSUNG-SM-N910A using XDA Premium HD app
Thanks for the suggestions. I'm not sure what's going on, because I haven't really tweaked anything but it's now acting normal most of the time even after fresh reboots. But I did still replicate the behavior several times on my wife's stock Galaxy Alpha. Anyway, I'm going to be keeping my eye on it and trying to see if I can figure out what variables seem to be causing the behavior. If anyone else ever notices this though, please post.
Just an update: the behavior had seemed to fix itself, but this was while I was traveling out of town for the holidays. Back home now, and the behavior returned. Since I've replicated this with my wife's stock Galaxy Alpha, I'm wondering if this has something to do with my home location being set in maps...or? Seems weird that it resolved while traveling but continues when back home. Really surprised nobody else has noticed this. Maybe it's something specific to my home location? Guess I will keep checking on it and report back if I figure anything further out.

GPS drops

Seem to be having an issue that I can't take care of that I've tried everything that I know that I believed could be causing the drops. The issue I'm having is any time I turn the screen off while driving my GPS will lose its connection after about 5 minutes. I was also losing data so I figured it was an application causing that issue with that problem I got resolved by removing the battery saving application called battery guru. That was actually shutting my data connection off with my screen off so I got rid of that completely but I still seem to have the problem with my GPS drops. My data stays up just fine but it seems like clockwork every 5 minutes the screens off I'm driving and I get that voice GPS connection lost. All I have to do is click the back button in Google Maps and reload my route and BAM its right back up and going. Now I can leave the screen on and I will not lose the GPS signal whatsoever until I turn the screen off. Have went through all the settings that I know of and of course the only battery saving application that I had installed and I can't seem to find the issue. I also use the search tool and couldn't find anyone else with a problem like mine. Does anyone have any suggestions or have seen this on their device? I'm beginning to think this may be a hardware issue I'm not sure. But if it was a hardware issue you would think I would be losing the connection all the time not with just the screen off which leads me back to a software issue. I'm going to keep freezing apps with titanium to see if I can find another culprit. I just don't have anything else installed that should have anything to do with that. Thanks in advance for any help for insight you may have.
flyinj54 said:
Seem to be having an issue that I can't take care of that I've tried everything that I know that I believed could be causing the drops. The issue I'm having is any time I turn the screen off while driving my GPS will lose its connection after about 5 minutes. I was also losing data so I figured it was an application causing that issue with that problem I got resolved by removing the battery saving application called battery guru. That was actually shutting my data connection off with my screen off so I got rid of that completely but I still seem to have the problem with my GPS drops. My data stays up just fine but it seems like clockwork every 5 minutes the screens off I'm driving and I get that voice GPS connection lost. All I have to do is click the back button in Google Maps and reload my route and BAM its right back up and going. Now I can leave the screen on and I will not lose the GPS signal whatsoever until I turn the screen off. Have went through all the settings that I know of and of course the only battery saving application that I had installed and I can't seem to find the issue. I also use the search tool and couldn't find anyone else with a problem like mine. Does anyone have any suggestions or have seen this on their device? I'm beginning to think this may be a hardware issue I'm not sure. But if it was a hardware issue you would think I would be losing the connection all the time not with just the screen off which leads me back to a software issue. I'm going to keep freezing apps with titanium to see if I can find another culprit. I just don't have anything else installed that should have anything to do with that. Thanks in advance for any help for insight you may have.
Click to expand...
Click to collapse
Is called a nexus. Google stock has always had that issue. Unfortunately nexus users spend most of the time locked in a basement and never happen to use gps, therefore they will say their gps works just fine.
Sent from my SAMSUNG-SM-N920A
Really? Interesting. Don't remember that on my galaxy nexus but don't know that I ever used the gps honestly. Anyone else confirm this?
ambervals6 said:
Is called a nexus. Google stock has always had that issue. Unfortunately nexus users spend most of the time locked in a basement and never happen to use gps, therefore they will say their gps works just fine.
Sent from my SAMSUNG-SM-N920A
Click to expand...
Click to collapse
FYI my gps DOES work fine... But I forgot you know my experiences better than me. My bad. Stupid response.
Sent from my Nexus 6 using Tapatalk
My GPS on my Nexus 6 is and always has been amazing. (Thanks for reminding me to compare that when I get the 6P). I use my GPS daily to keep Waze up when I drive to watch for cops, traffic, etc. Even when I know where I'm going I use it and Google play streaming over Bluetooth and my GPS keeps connection even in Manhattan.
I would recommending getting an app called GPS status, it has a few settings to keep GPS active etc, which should solve your problem. However I have no clue what could cause something like that...
Sent from my Nexus 6 using XDA Free mobile app

WiFi keeps turning on and off on its own

I don't know what might have happened, but this morning, I tried to connect my Phone to WiFi, and for some reason, it wouldn't. The WiFi toggle button that you see when you pull down the Notification Bar, now that WiFi button keeps turning on and off constantly. The time it takes between each toggle (on to off or off to on) is just about 0.5 - 1 sec. This is crazy. I can't connect to my WiFi.
I googled for solutions, no luck. I hard reset my Phone, no luck still. I wiped Partition Cache too. I entered into the Safe Mode, the same behavior happened. It's weird. It's like my Phone is possessed or something. A virus maybe?
Any input would be much appreciated. My phone is running the latest Firmware from T-mobile. And I got the update maybe 1-2 weeks ago and it had been working fine until this morning the issue started.
My phone just started doing this as well. Wifi keeps turning off and on. If I want to keep it off I have to restart my phone. If I want to use the wifi I have to manually toggle it from the wifi settings. Just weird it started doing this just recently. Maybe an app we both have installed?
I think I've found the issue. Sadly only after 3x reformatting the phone.
Go to Settings, Location, then click on Improve Accuracy, then turn off WiFi and Bluetooth Scanning (actually just the WiFi scanning would do the trick, but I decided to just turn off both of them). I suspect an update to one of Google system apps might have caused the phone's WiFi to behave weirdly like this. For the past 2-3 years I've had this phone, it had been fine with these two options turned on. It changed yesterday.
Let me know if this solution works for you.
febzz88 said:
I think I've found the issue. Sadly only after 3x reformatting the phone.
Go to Settings, Location, then click on Improve Accuracy, then turn off WiFi and Bluetooth Scanning (actually just the WiFi scanning would do the trick, but I decided to just turn off both of them). I suspect an update to one of Google system apps might have caused the phone's WiFi to behave weirdly like this. For the past 2-3 years I've had this phone, it had been fine with these two options turned on. It changed yesterday.
Let me know if this solution works for you.
Click to expand...
Click to collapse
Haha I was about to post this solution as well! Turning off the wifi in location accuracy fixed it. You're right about probably some Google app is causing this as this hadn't happened before yesterday. Sorry you had to format your phone to find this out...hopefully google or samsung can fix this from their end.
Thanks for this! Working for me (I'm on Tekxodus URv7.4R2 N5R9 with Emotion Kernel (r23).
Was driving me nuts. I'm a bit concerned about the loss of wifi for location accuracy though since my phone's GPS has been borked ever since i can remember.
Update: I noticed a recent review on the Play Store for Android Wear referring to a recent Wear update possibly causing the issue. I have Wear installed for a watch. Just curious if anyone experiencing this problem does NOT have Wear installed?
muzzy996 said:
Thanks for this! Working for me (I'm on Tekxodus URv7.4R2 N5R9 with Emotion Kernel (r23).
Was driving me nuts. I'm a bit concerned about the loss of wifi for location accuracy though since my phone's GPS has been borked ever since i can remember.
Update: I noticed a recent review on the Play Store for Android Wear referring to a recent Wear update possibly causing the issue. I have Wear installed for a watch. Just curious if anyone experiencing this problem does NOT have Wear installed?
Click to expand...
Click to collapse
I just uninstalled wear and same issue persist. Last app from Google that I did an update on was Google home...formally known as chromecast.
---------- Post added at 10:30 AM ---------- Previous post was at 10:04 AM ----------
I just uninstalled Google home and the issue went away.
I do have Google Home and Android Wear installed as well. I checked the Google Home App Play Store Page and someone commented there pointing out about the issue too.
febzz88 said:
I do have Google Home and Android Wear installed as well. I checked the Google Home App Play Store Page and someone commented there pointing out about the issue too.
Click to expand...
Click to collapse
Yup that was me leaving a comment haha
i have had exactly the same problem for a day or two. while disabling "location>improve accuracy>wifi scanning" stops the bug temporarily it doesn't really solve the problem. wifi scanning is an important location feature when navigating. in narrow streets or in buildings one usually does not have gps reception, also the wifi scanning technique for determining the devices location is usually faster and uses less battery than gps (how ironic).
this bug is extremely annoying. i am on an unbranded, unrooted s5 on 6.0.1 (g900f). i can not believe that this also happens with s7 and pixel phones, this is really ridiculous (see similar thread on androidcentral forum. can't post url because this is my first post). if anyone finds a permanent solution for this problem, please tell us!!!
androidschmandroid said:
i have had exactly the same problem for a day or two. while disabling "location>improve accuracy>wifi scanning" stops the bug temporarily it doesn't really solve the problem. wifi scanning is an important location feature when navigating. in narrow streets or in buildings one usually does not have gps reception, also the wifi scanning technique for determining the devices location is usually faster and uses less battery than gps (how ironic).
this bug is extremely annoying. i am on an unbranded, unrooted s5 on 6.0.1 (g900f). i can not believe that this also happens with s7 and pixel phones, this is really ridiculous (see similar thread on androidcentral forum. can't post url because this is my first post). if anyone finds a permanent solution for this problem, please tell us!!!
Click to expand...
Click to collapse
Do you have Google Home installed? After I uninstalled that the wifi issue stopped
alanmv567 said:
Do you have Google Home installed? After I uninstalled that the wifi issue stopped
Click to expand...
Click to collapse
no, i do not.
muzzy996 said:
Thanks for this! Working for me (I'm on Tekxodus URv7.4R2 N5R9 with Emotion Kernel (r23).
Was driving me nuts. I'm a bit concerned about the loss of wifi for location accuracy though since my phone's GPS has been borked ever since i can remember.
Update: I noticed a recent review on the Play Store for Android Wear referring to a recent Wear update possibly causing the issue. I have Wear installed for a watch. Just curious if anyone experiencing this problem does NOT have Wear installed?
Click to expand...
Click to collapse
Is it your GPS or the Compass? If it can still detect your location but when you use, for example, the Google Maps Navigation, it couldn't really detect where/which direction you're going then it's probably just a compass issue. All you need is some calibration.
I fixed my friend's phone compass issue (and she thought her GPS was broken too) last week. The easiest way to calibrate: just download the GPS Status app and tap on the Calibration option and follow the instruction there.
Always try to calibrate your compass first as the first possible fix whenever you think your GPS is starting to go crazy, it might help.
Go to location>improve location>unchecked wifi scanning. It just worked for me
Uninstalling android wear seems to have worked for me.
febzz88 said:
Is it your GPS or the Compass? If it can still detect your location but when you use, for example, the Google Maps Navigation, it couldn't really detect where/which direction you're going then it's probably just a compass issue. All you need is some calibration.
I fixed my friend's phone compass issue (and she thought her GPS was broken too) last week. The easiest way to calibrate: just download the GPS Status app and tap on the Calibration option and follow the instruction there.
Always try to calibrate your compass first as the first possible fix whenever you think your GPS is starting to go crazy, it might help.
Click to expand...
Click to collapse
Definitely not the compass, been through the calibration process. Attempted many fixes including special GPS settings and utilities. At times the phone can sit there with screen on for over 10 minutes without acquiring a single satellite. I'm thinking hardware issue, possibly contacts for the antenna. In any case, not relevant to this thread...
I rebooted into recovery and wiped both CACHE and this fixed the issue. I did not change any settings in any apps either.
DirtySant0 said:
I rebooted into recovery and wiped both CACHE and this fixed the issue. I did not change any settings in any apps either.
Click to expand...
Click to collapse
I had tried this prior to reformatting my phone and it didn't help. I then wiped the cache again and reformatted the phone; in fact I reformatted and cleared cache 3x because the issue kept coming back after I reinstalled apps again. This is weird, the situation and resolution vary a lot from one user to another. Then I simply turned off WiFi Scanning under Improve Accuracy in Location, and the issue went away.
WHEW! Uninstalling Wear and Home did it for me. For now, anyway. I "fixed" it this morning by toggling Ultra Power Saver on and off, and it worked all day until I came home from work. Then nothing helped until I found this thread. Changing GPS settings didn't do it for me, but I'm still on Lollipop so my location settings are a little different.
Thank you, Febzz and Alan!
Google home was the issue!!
Sent from my SM-N910T using Tapatalk
Changes in router's Wireless Security had caused it in my case
This is old thread but still I am posting this solution as it could be useful tip for someone in future.
I had this issue and was causing me real headache. I initially thought it was hardware failure of my phone but later I found reason is something else.
For some reason I had changed Wireless Security of my WiFi router from WPA2 Personal to something else (I guess WEP).
That was causing my phone (intex cloud 4g) often to turn on and off WiFi on its own. I changed the Wireless Security back to WPA2 Personal and phone is now back to normal (not turning WiFi on and off on its own)

Question GPS Issues

Anyone else experiencing GPS issues on the S23?
Sometimes it will work fine for a day, sometimes for a couple of hours. Then it stops.
Occasionally rebooting resolves the issue, but generally it doesn't. Yesterday I restarted and/or turned off/on 5 times without resolving. Some hours later, it just starts working again.
Looking at nmea loggers and GPS Test app, when it stops it either shows no data at all, or sometimes shows signal from just one or two and never finds any more so can't get position lock (other than network based). My old S20 right next to it will show 18-20 satellites at the same time and never faults.
I submitted a fault to Samsung. They said the uploaded system log showed nothing coming from GPS (fault was currently being exhibited) and phone will need to go back. This isn't always the case however, as sometimes it works OK.
Is there anything I can try before I send it off?
Have others had similar issues?
Try restarting in emergency mode (SOS) and do your tests.
If I were you, I would factory reset or even install firmware with Odin just to make sure everything is OK.
Send to Samsung is the last attempt.
Thanks for the suggestions. I'll give them a go and see what happens.
Calibrate your GPS in google maps. Tap your location and it had you move your phone around to increase its accuracy.

Categories

Resources