Develop Bugs

GPS Fix ... soooo slooowww...

Anyone know why my GPS fix is so slow? It takes at least 10 minutes to get a fix..
I'm running - VaniljEclair RLS6
TW,

It really depends on the weather. If you look up and see clouds, it's going to be a while. If it's raining then it may never connect.
It also helps the have the best tools for the job. Use kallt_kaffe's latest kernel, and download and use "GPS Test" for connecting your GPS.

Dukenukemx said:
It really depends on the weather. If you look up and see clouds, it's going to be a while. If it's raining then it may never connect.
It also helps the have the best tools for the job. Use kallt_kaffe's latest kernel, and download and use "GPS Test" for connecting your GPS.
Click to expand...
Click to collapse
It's clear outside so its not weather related.
I'm curious what the"GPS Test" tool actually does? and just exactly what the phone is doing causing it to take so long.
Thanks,

The way GPS works is as follows.
In order to know your position on a 2 dimensional plane, you need 2 coordinates, X and Y, however in order to know your position on a 3 dimensional object, you need 3 coordinates, X, Y and Z, what we need to know is our position in a 4 dimensional space, which requires not only X, Y Z and V, so that's a lot of data right there, and to further complicate things, the satellites themselves are in motion, also in 4 dimensions.
Ok if that hasn't messed with your head, consider this, your phone only receives GPS data from the satellites, it does not transmit anything, so how does your phone know where the satellites are? simple, the satellites transmit their position, the time, their velocity and heading, ( actually it's slightly more complicated, but I'm not getting into orbital mechanics, lol).
So in order to be able to fix a position, your phone must download this data from each satellite in view, process and compare it with all the other data in order to get an initial fix.
As if this was not complicated enough, you must also realise that the satellite data is continually transmitting in an updating loop, so if the receiver gets bad data from one sat, it must discard that set and start again.
Once the initial fix is made, it's a simple matter to continually update the devices position, but once the gps is turned off, it may take some time to resynchronise, especially if the user has moved to another location before restarting gps.
To operate with reasonable accuracy, (within a few tens of metres), you must have a good signal from at least 4 satellites, more just refines the accuracy.
So why ten minutes? Well there are a number of factors, weather does play a part, but not as much as some think, typically you will lose lock on the weaker satellites, giving less accuracy.
Surrounding buildings and trees are actually great at blocking GPS signals, so in wooded or built up areas, expect slower fixes, less accuracy, and dropped locks.
Movement, this is actually the biggest problem, if you are in motion during the initial fix period, there is a high probability that your own motion will cause problems, since the gps data may be changing too fast for the device to cope with, which will cause it to continually discard data that may be valid.
All in all, the best practice is to find somewhere stationary, away from buildings and trees, turn on GPS, and just wait for it to lock, it will usually take 5 minutes from cold start, perhaps up to 10 minutes in some cases.
Once the initial fix is established, it takes less time to refix after gps is turned off, since the last data is kept in the device for future reference, (which is why it can take more time to fix if you turn off gps and then move 10K or so before turning it on again).
Winmo has a few advantages over Android for gps, since on WM you can download a 'snapshot' of the satellite data in order to 'jump start' the gps to get a faster fix, that plus cell location and agps make it much faster to get up and running compared to Android on our hardware, which lacks cell location and agps.
What GPS Test does is simply show you a lot more data than you would normally see, satellite positions, signal strengths, number of sats visible, number in use by you. Basically it lets you see that some data is actually being received by your device, how strong the signal is, and if the device has locked to a satellite. I highly recommend getting GPS Test from market if you use gps, used it on WM, and the Android port is just as good, ( I got the paid version, but the free one is excellent too).
Any questions?

zenity said:
The way GPS works is as follows.
...
Winmo has a few advantages over Android for gps, since on WM you can download a 'snapshot' of the satellite data in order to 'jump start' the gps to get a faster fix, that plus cell location and agps make it much faster to get up and running compared to Android on our hardware, which lacks cell location and agps.
...
Click to expand...
Click to collapse
Terrific write up!
So, GPS Test won't help speed up the positioning so therefore there isn't a need to download it unless your curious about any of the other settings, thanks.
Since the WM version was a bit quicker in getting the position by downloading a file is there something in the works to try and incorporate this process into Droid?
After it finds a fix, if the handset suspends is there a need to re-aquire the sats or wait again for the same process?
Thanks,

Well GPS Test won't speed up the initial or subsequent fixes, but it does give a good indication that gps is actually working, and receiving/processing the data, and once fixed, you just close that and start your preferred gps app, which will fix almost instantly since the data is current.
I don't think we have anything for android that does the same as the WM gps app, could be wrong, but have not seen anything yet.
The slowest is the initial fix, after that it usually fixes faster, suspended or powered down, only reinstall/wipe data will usually require such a long fix time again, however as I said, there are a number of factors, movement being perhaps the biggest cause of delay.
However once fixed, Android is comparable to WM, even better in some cases, since I never could get my all time favourite GPS software (trekbuddy), to work in WM, it is great in Android though

I don't think we have anything for android that does the same as the WM gps app, could be wrong, but have not seen anything yet.
Click to expand...
Click to collapse
i also looked and found nothing
The slowest is the initial fix, after that it usually fixes faster, suspended or powered down, only reinstall/wipe data will usually require such a long fix time again, however as I said, there are a number of factors, movement being perhaps the biggest cause of delay.
Click to expand...
Click to collapse
mine also takes forever every time unless i havnt moved and switch apps within 10 minutes.
However once fixed, Android is comparable to WM, even better in some cases, since I never could get my all time favourite GPS software (trekbuddy), to work in WM, it is great in Android though
Click to expand...
Click to collapse
i lose gps on the highway, unlike when i had wimo
i still think its odd that i can see 6, 7, 8 sats for 2 or 3 minutes before getting a lock

Thinking about trying this on a friends Eris, but other android devices get a lock very quickly. The other devices have working tower location, so does the android gps system use the tower location to speed up gps lock?
I'm going to take my friends Eris and turn off all radio functions, then run GPS test to see what happens and how long a lock takes...

Ok, tried a few things on the Eris. In airplane mode, launched GPS test in a lock in under 10 seconds. Restarted the phone, still in airplane mode, and immediatly launch gps test and a lock in under 10 seconds.
Do these other phones have GPS chips have almanac caching or does the OS have some way of storing almanac data to assit the GPS.

As far as I am aware, from previous experience of GPS devices, the last ephemeris data is cached in the device chipset, allowing a faster start up, provided the user has not moved too far, or left gps off long enough to make the data too old. However I do not have enough information to make more than guess that it is hardware based rather than OS based caching.
Cell tower location allows GPS to establish a 3 dimensional fix, (remember gps needs more than 3 dimensions to establish a true fix), not enough to be totally accurate, but within 20-50 Metres, which is ideal for 'seeding' the incoming gps data from satellite, allowing even faster start up, since the gps chipset does not have to do nearly as much calculation and correlation on the data, since it already knows roughly where it is.
So the delay we experience in getting a gps fix with Android on our devices has one main cause, lack of cell tower location, and it's possible that the ephemeris data cache may not be getting processed, if this is indeed cached by the hardware, and not by the OS.

Some of you may have noticed a file called gps.conf in /system/etc
It looks like this:
Code:
NTP_SERVER=north-america.pool.ntp.org
XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin
SUPL_HOST=supl.google.com
SUPL_PORT=7276
NTP is a protocol for getting accurate time from servers on the internet.
xtra.bin is asfaik the satellite almanac.
SUPL_HOST is for AGPS.
My guess is that a "real" android libgps uses this information to do a few things to help the GPS out.
1. Give it the current time
2. Prime it with the almanac
3. Use the AGPS data to provide it with correction data etc.
We could do some HaRET magic to monitor what the QuickGPS software send to the GPS chip and make our own QuickGPS tool for android or even build that into libgps.so. It's possible but is it worth the time? I don't know. I would give it a go if I wasn't allready lacking time to do everything I want to do.

kallt_kaffe said:
Some of you may have noticed a file called gps.conf in /system/etc
It looks like this:
Code:
NTP_SERVER=north-america.pool.ntp.org
XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin
SUPL_HOST=supl.google.com
SUPL_PORT=7276
NTP is a protocol for getting accurate time from servers on the internet.
xtra.bin is asfaik the satellite almanac.
SUPL_HOST is for AGPS.
My guess is that a "real" android libgps uses this information to do a few things to help the GPS out.
1. Give it the current time
2. Prime it with the almanac
3. Use the AGPS data to provide it with correction data etc.
We could do some HaRET magic to monitor what the QuickGPS software send to the GPS chip and make our own QuickGPS tool for android or even build that into libgps.so. It's possible but is it worth the time? I don't know. I would give it a go if I wasn't allready lacking time to do everything I want to do.
Click to expand...
Click to collapse
Ah, that makes sense, since Agps uses an internet server to prime the gps chipset, and if I recall correctly QuickGPS is similar, but provides the weeks Ephemeris data. Ephemeris, Almanac and Time are the three main data components of GPS, ( almanac being the one I tend to forget about....).
Perhaps changing a few server addresses in gps.conf may provide us with some aggps functionality, but I am now wondering if perhaps agps is 'broken' in our builds, or perhaps I have never noticed any data activity.
Just had a look at the website address http://xtra1.gpsonextra.net/xtra.bin, which allows me to download what I assume is the data file, so what we need to complete the puzzle is, what uses gps.conf, and where does it put the data file?, Also does anything use that data file if present?

GPS is currently pretty much useless in that it just never gets a fix, today I waited 10 minutes and still nothing - I went back to WM to use GPS, so any development in this area would be sweet!
TW,

Not sure exactly what is going on there, last night I installed the latest nbh from kallt, plus his RLS7b eclair build, this morning I started gps for the first time, using gpstest I got a first fix in under 3 minutes, which is faster than average.
Sent from my HTC Kaiser using Tapatalk

zenity said:
Not sure exactly what is going on there, last night I installed the latest nbh from kallt, plus his RLS7b eclair build, this morning I started gps for the first time, using gpstest I got a first fix in under 3 minutes, which is faster than average.
Click to expand...
Click to collapse
I'm using the same setup at the minute, tried GPS this morning and it got a fix on the move in about 5mins which isn't bad, my girlfriends HTC Hero got a fix in under a minute though and it's the first time it has connected and it's true that WM is much faster when quickGPS is updated. Any improvements here are very welcome, maybe i'll have a look into it too.

you could edit gps.conf according to your own pool server
a list of these servers can be found here. May make a small difference for some people.
Please post if this helped getting a quicker fix
http://www.pool.ntp.org/en/
Update:
i used the appropriate time server for my country (netherlands),
i used a fresh device (android had never ran on it, though the android on sdcard has been used on other devices)
i went to the toilet very quick, when i came back there was a fix.
So please go see if this makes a difference for you, and post your experiences in here

I seriously don't think it will matter what you put in gps.conf at the moment. What we need to know is how this is used on a "real" android phone.
I've tried to find some GPS code in the Hero kernel source in the past but found almost nothing and the libgps for HTC devices are asfaik closed source so I guess it's in libgps all the "magic" takes place. (I fact, for Kaisers the it would be more "right" to do our NMEA parsing in libgps instead of doing it in the kernel but since libgps evolved around the Vogue it was made in the kernel to make it appear just like the vogue gps data to libgps.so.)
So I'm guessing that a "real" libgps.so reads gps.conf, get's some data and feeds it to the GPS. Likely with AT-commands. It is possible though that it is the ril interface that does it. We have the source for our ril lib and our gpslib and I know for sure we don't do any prime:ing in the our libgps. (The sources are here: http://androidhtc.git.sourceforge.net/git/gitweb-index.cgi?p=gitroot/androidhtc/bootenv/)
It is possible to do dump stuff with HaRET when you for example enable the GPS (I've done it in the past following instructions from dzo) and also when you run QuickGPS and try to match the information sent with the information in xtra.bin. I also expect we should find it sending the current UTC time which by it self propably could speed up fix times.
Once we know what to do we either build it into libgps or we make an Android app similar to QuickGPS.
In fact, I found some dumps laying around....
At boot WinMo sends the system time to the Radio with this command:
[email protected]=2,21,43,2010,5,12
I would say the format is H,M,S,YYYY,M,D even though values are a bit strange because the files are dated 2010-05-11 but it's possible that the WinMo clock was a bit f*cked up at the moment.
Perhaps our rild is allready sending this (someone should check the source)
Otherwise you could try this and se if it helps:
echo -e "[email protected]=x\r" > /dev/smd0
(replaceing the x with the current time and date of course)

Just tried and it was going on 10 minutes with no fix...
TW,

Have you tried gpstest to see if it's actually receiving a signal at all? It is possible that you have a hardware issue, perhaps a broken antenna connection?

If that were the case then it shouldn't work in Windows and it does... ???
Strange...
Does Android require a data connection when getting a GPS fix?
TW,

[Q] Issue with GPS

Hi
I have issues with my data, is intermittent going on and off like for periods of one second each(seems that restarting solve this, but then again the issue), and the GPS never locks, i was on KK1 baseband, then changed to kk6, then KL1, and now im on UGkk7, and now im on UGKL1... same thing
Im with franco kernel 14.4 and AOKP 21... dont know whre is the issue...
I have wiped cache and davilk, also re-flashed AOKP 21 and gapps, so now im with the custom kernel.... and the same thing.
I have downloaded GPS test and sometimes find some satelites and sometimes dont. I have cleared AGPS and updated AGPS aswell (i dont even know what this **** does)... same thing
Note: this issue began suddenly 3 days ago, with no apparent reason when i was on KK1... i think i never did something to provoke this issue.
I have checked my gps.conf under /system/etc and found that i have this:
Code:
NTP_SERVER=north-america.pool.ntp.org
XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin
SUPL_HOST=supl.google.com
SUPL_PORT=7276
Maybe we can share our logs and find whats wrong?
Also here is a gps.conf file that one user told me that this fix the issue, but i will try it in a moment:
Code:
#NTP_SERVER=xtra1.gpsonextra.net
NTP_SERVER=us.pool.ntp.org
XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin[/B]
# DEBUG LEVELS: 0 - none, 1 - Error, 2 - Warning, 3 - Info
# 4 - Debug, 5 - Verbose
#Div6-PT1-GPS-LNA_LDO-00*{
#DEBUG_LEVEL = 3
DEBUG_LEVEL = 5
#Div6-PT1-GPS-LNA_LDO-00*}
# Intermediate position report, 1=enable, 0=disable
INTERMEDIATE_POS=0
#INTERMEDIATE_POS=1
# Accuracy threshold for intermediate positions
# less accurate positions are ignored, 0 for passing all positions
# ACCURACY_THRES=5000
#ACCURACY_THRES=100
################################
##### AGPS server settings #####
################################
# FOR SUPL SUPPORT, set the following
# SUPL_HOST=supl.host.com or IP
# SUPL_PORT=1234
# Add Google SUPL server and port for Huawei(FB0.B-3409)
SUPL_HOST=supl.google.com
SUPL_PORT=7276
# FOR C2K PDE SUPPORT, set the following
# C2K_HOST=c2k.pde.com or IP
# C2K_PORT=1234
################################
# EXTRA SETTINGS
################################
# Wiper (wifi positioning), 1=enable, 0=disable
ENABLE_WIPER=1
Please feel free to share your results.

I have tried some of the settings mentioned and seems that is not a fix---

Ok seems that with Fasterfix app is locking finally, and the first time take some time to lock in but after the first time is faster, i will keep testing and let you know.

I experienced an issue with AOKP 21 where GPS would not lock. It didn't resolve until I installed AOKP Milestone 3 and turned GPS off and on again. I have a feeling it was toggling GPS that resolved it, not upgrading AOKP. Either way, I would recommend you make a backup and try the M3 release, it's working really well for me with Franco-15.2 kernel.

jdk82 said:
I experienced an issue with AOKP 21 where GPS would not lock. It didn't resolve until I installed AOKP Milestone 3 and turned GPS off and on again. I have a feeling it was toggling GPS that resolved it, not upgrading AOKP. Either way, I would recommend you make a backup and try the M3 release, it's working really well for me with Franco-15.2 kernel.
Click to expand...
Click to collapse
Thanks for your advise... so i will try milstone 3 then right now in order to see if this makes my GPS better, but Franco 15.3 is underclocked? i dont like that.

I haven't had any issues with the underclocking in Franco 15.3, if it bothers you you can always set it back to stock.

jdk82 said:
I haven't had any issues with the underclocking in Franco 15.3, if it bothers you you can always set it back to stock.
Click to expand...
Click to collapse
Ok i flashed milestone 3 from a fresh start, the GPS is working much better man! also the data.
I will keep testing, but at least fianlly is working, im on UGKL1 radio.
But about the turtle kernel, i dont see the point of having double core at 1.2Hz if you are not using it at all... im oon 14.4 franco kernel @1350Hz witch is better.

Well, over/under clocking is really a matter of preference. If you overclock your device runs faster but uses more battery. If you underclock your device runs slower (somewhat) but uses less battery. IMHO, the governor (code that decides which speed to run the CPU at) is more important than over/under clocking. I run with max=1000 min=700, never notice any lag and easily get a full days worth of somewhat heavy usage. Of course YMMV and it really depends on what you value more, speed or battery life.

GPS on Archos 101G9

anybody can use gps on archos 101g9? can't get no sat fix. app gpstest does not show any satellite. is this a further bug in ics?
running rooted ics 4.05 for sde (surdu_petru).

I have a Archos 80(same hardware though) and my GPS works fine on firmware 4.0.5
And if I may say so wow is it good, I get a GPS lock inside my house after about 20-30 seconds
Sent from my ice cream powered Nexus S

DarkhShadow said:
I have a Archos 80(same hardware though) and my GPS works fine on firmware 4.0.5
And if I may say so wow is it good, I get a GPS lock inside my house after about 20-30 seconds
Sent from my ice cream powered Nexus S
Click to expand...
Click to collapse
mmh, where is my mistake? can't get gps lock with google maps, navigation and so on. car navigation is impossible. gps search is endless inhouse and outdoor
settings location + security:
"use wireless networks = off"
"use gps satellites = on"
"use location for google search = off"
edit:
found this in another forum
http://www.forum.archosfans.com/viewtopic.php?f=85&t=64272
can anybody confirm?

Mine works great. I'm using 80g9. My archos is now my traveling/adventure teblet. I have two and like the screen size for jps etc in my jeep?
Sent from my ARCHOS 80G9 using Tapatalk

It's little bit mystic...
Hey guys,
last week i also thought about open up a thread related to GPS issues on the Gen9 series, because i had some trouble to get a fix as well.
I'm using an Archos 80 G9.
4carlos said:
mmh, where is my mistake? can't get gps lock with google maps, navigation and so on. car navigation is impossible. gps search is endless inhouse and outdoor
Click to expand...
Click to collapse
The same with my device at first.
I used the rooted ICS 4.0.5 and GPS Status from the market and started some experiments.
There'd been no response from the GPS part at all.
After some time i used a serial port api tool to directly connect to ttyO0.
Though the GPS part uses some hex protocol i had been able to get a response from the chip, but it was not human readable.
So this way i made sure there's no hardware damage on my UART interface or GPS chipset.
Afterwards i did some hard resets and checked settings of the UART by typing:
Code:
stty -F /dev/ttyO0
I started to run GPS Status again and also deleted my AGPS data by using the tools menu. Then i changed GPS Status setup to stay active and prevent device from sleep.
I took a while, but then the first satellite came in sight, still no fix.
Next day i did the same after some time more and more satellite where seen, but still no fix.
I restarted my device again to boot stock firmware.
Same again... more and more satellites became visible... but then... suddenly a fix. In fact it took very very long and i'm not very satisfied with the situation.
After i re-booted to rooted firmware again i was able to get a fix here as well.
The signal reception is still far from being nice though.
Try to get a fix with stock firmware first, then reboot and check again with rooted firmware.
4carlos said:
settings location + security:
"use wireless networks = off"
"use gps satellites = on"
"use location for google search = off"
Click to expand...
Click to collapse
Should be no problem with this setup.
AFAIK, these three settings address different services.
GPS should be set of course.
4carlos said:
http://www.forum.archosfans.com/viewtopic.php?f=85&t=64272
Click to expand...
Click to collapse
Nice thread, but people start to mix things up at some point.
Though the GPS and location service on Android OS is quite mystic, i'll try to concentrate on some facts.
Hardware:
- NL5550 chipset used on Archos Gen9 is up to date and not that bad
(merged into WL1283 chipset, see http://www.murata-ws.com/com7.htm)
- Due to hugh shielding areas, GPS reception is not the best with tablets (if compared to handsets).
- GPS antenna and position of the antenna seems to be problematic
Software:
- Firmware setup changed form HC to ICS
- size of the patch file for the chip had grown in ICS
(mabye they wanted to make thinks better, but they got worse)
So what could be done...
Hardware:
- I started searching for a better antenna to be placed in the housing
(e.g. helical/helix antenna)
- Place a HF-connector on the mainboard to use an external antenna
Software:
- Extract the firmware files from HC and try this setup for ICS
- try to find other devices based on the navilink chipset and compare their firmware setup
Basically GPS works on ICS and things in fact are not related to ICS itself.
Some firmware tweaks might be the cause of these issues.
The basic construcion of the hardware could have some side-effects on this as well.
Some people seem to have no trouble at all, so at least GPS reception is of course little bit depended on the weather and the area you live in.
I may post the HC firmware files here, if you like to try the HC setup on your device.
Cheers,
scholbert

GPS lib loops
Hi,
I can ONLY get my GPS to lock on if the wifi and location services are enabled and working.
This is because, the gpslib tries to speed up the lock and position information by going out on the internet and firstly fetch the time from the main European ntp server.
Looking at the system logs, it appears to get into an infinite loop waiting for a time update.
Therefore my gps WILL NEVER WORK if actuated with NO wifi.
However..... If I start the GPS application, (I am using mmaps) with the wifi on and the locaation services on I get a good lock, with 10-12 satellites with the Archos INSIDE my house, within a few minutes. (There is nothing wrong with the sensitivity of the GPS engine!)
If I then stop the app and turn off the Wifi and location serves and restart the app it will get a lock in a few seconds and stay working until I power down the Archos.
This is OK apart from the problem that I want to use the Archos in my car with no wifi.
cheers
Patrick

Hey superpat999!
superpat999 said:
I can ONLY get my GPS to lock on if the wifi and location services are enabled and working.
This is because, the gpslib tries to speed up the lock and position information by going out on the internet and firstly fetch the time from the main European ntp server.
Looking at the system logs, it appears to get into an infinite loop waiting for a time update.
Therefore my gps WILL NEVER WORK if actuated with NO wifi.
Click to expand...
Click to collapse
Yes, thanks for pointing at this.
Try to disable automatic time sync in time & date settings menu and check again.
You should definitely get a fix without setting the other location services or having wifi enabled all the time.
superpat999 said:
However..... If I start the GPS application, (I am using mmaps) with the wifi on and the locaation services on I get a good lock, with 10-12 satellites with the Archos INSIDE my house, within a few minutes. (There is nothing wrong with the sensitivity of the GPS engine!)
If I then stop the app and turn off the Wifi and location serves and restart the app it will get a lock in a few seconds and stay working until I power down the Archos.
Click to expand...
Click to collapse
O.k. this is also very helpful information. I must admit that sensitivity is not that bad, but could be further improved... that's why i also talked about hardware in my last post.
superpat999 said:
This is OK apart from the problem that I want to use the Archos in my car with no wifi.
Click to expand...
Click to collapse
As stated above... getting a fix without wifi should work, i'm pretty sure.
Thanks again for this detailed descriptions!
Regards,
scholbert

big thanks for descriptions!
seems like a complicated science for a simple functionality
my older external sirf 3 receiver need only 5 minutes for sat fix after cold start (very cloudy!) and 10 up to 15 seconds in warm state. i wonder why the archos is much slower.
ok, i will give a new chance an try it again and again and again...and report later.
regards,
4carlos

Assisted GPS !!!!!
Hi,
Unfortunately The Archos uses assisted GPS
I am not allowed to post links yet so see:- the wikipedia entry for assisted GPS
The Archos "might" use the Qualcomm chipset "GPSONE" , I am not sure but a lot of phone makers use it:-
see the wikipedia entry for GPSONE
Like I said in a previous post in the other place, I wish Android tablets were not still so mobile phone centric.
cheers
P

superpat999 said:
The Archos "might" use the Qualcomm chipset "GPSONE" , I am not sure but a lot of phone makers use it:-
Click to expand...
Click to collapse
Please refer to my post above:
Hardware:
- NL5550 chipset used on Archos Gen9 is up to date and not that bad
(merged into WL1283 chipset, see http://www.murata-ws.com/com7.htm)
Click to expand...
Click to collapse
Archos uses TI NaviLink chipset. GPSONE is Qualcomm only and there's no Qualcomm chip inside our units.
TI NaviLink supports AGPS as well but it does not rely on that.
In other words even without assisted data you'll get a fix... sooner or later
Assisted GPS is always an option to get faster fix.
Did you try again with disabled automatic network time setting?
Regards,
scholbert

libgps loops!
Hi Scholbert
Thanks for correction re type of gps chip. Why I thought there was a GPSONE chip in the Archos was because the /etc/gps.conf uses the Qualcomm extra server site , see below.
However I still maintain there is an infinite loop in the ICS (or Archos modded) libgps. I have left the machine on for 8 hours and never got a lock without wifi.
I cannot post the /etc/gps.conf and the log here because I am too noob yet.
Instead have a look at my post here:-
forum.archosfans.com/viewtopic.php?f=85&t=64272#p396064
regards
Patrick

Hey superpat999!
superpat999 said:
Thanks for correction re type of gps chip. Why I thought there was a GPSONE chip in the Archos was because the /etc/gps.conf uses the Qualcomm extra server site , see below.
Click to expand...
Click to collapse
Yeah no problem, i'm a hardware addict... so if you need some info about the chips of G9 ask me
superpat999 said:
However I still maintain there is an infinite loop in the ICS (or Archos modded) libgps. I have left the machine on for 8 hours and never got a lock without wifi.
Click to expand...
Click to collapse
I guess you're right... I made some further tests and must confirm, that i observed the same behaviour. This in fact is really annoying...
The GPS receiver receives satellite information (satellites can be "seen"), but there's no fix without beeing connected to the networks.
This is acceptable. We should contact the Archos developer's, especially user courville who has joined this forum for bug fixing.
He's an employee of Archos and one of the chief developer's, very friendly and helpful as well!
superpat999 said:
forum.archosfans.com/viewtopic.php?f=85&t=64272#p396064
Click to expand...
Click to collapse
Had a view at this thread and read your posting.
If the described behaviour is compiled in the lib, we can't fix it ourselfs.
Archos needs to fix this problem by tweaking the library.
If it is related to a setup option, we might easily fix it at least on a rooted device using a customized image.
Had anyone tried the 4.0.6. firmware test release yet... maybe GPS got fixed as well.
Regards,
scholbert

scholbert said:
If the described behaviour is compiled in the lib, we can't fix it ourselfs.
Archos needs to fix this problem by tweaking the library.
If it is related to a setup option, we might easily fix it at least on a rooted device using a customized image.
Click to expand...
Click to collapse
Since GPS is integrated into wlan chip it may be necessary to power on wifi to power on also GPS part.
scholbert said:
Had anyone tried the 4.0.6. firmware test release yet... maybe GPS got fixed as well.
Click to expand...
Click to collapse
On 4.0.6 GPS works exactly the same.
Some observations (GPS Test)
-it takes quite a while to aquire lock even with "fresh" aGPS data
-lock is not stable- it likes to dissapear even if I don't move tablet
-catching new sattelites "unlocks" the lock
-accuracy seems poor- GPS Test didn't report anything less than 80 meters (Xperia Arc S in the same spot has <20m)

I get a lock within 10 seconds with my G9 inside my house. The accuracy has gotten down to under 4 meters. On my particular tablet, it works fantastic. I never had to clear AGPS data. I think this is luck of the draw. Some work great, some not.
My ASUS TF101 has all the issues you guys describe. Unreliable and slow. Most people with the TF101 do not have my issue.
My wife's LG Optimus One GPS works great, locks in under 20 seconds and never unlocks. My Samsung Galaxy Ace struggles to get a lock but can maintain it once lock is achieved.
All these devices are running different Android versions so I agree that it is not a software issue. I tend to believe it is the fact some get better build quality antennas than others making some of the same devices work better than their twins.

i have tested copilot on 3 different archos G9 80s. All have gotten a lock in my house. I have tested one while driving to work and it maintains the lock.

anybody want an archos 101g9 ?????
hi,
i'm back here after testing my 101 and i'm not really lucky
thanks to all here first. i pursued the discussion with interest.
my archos did not work with gps at all!. i checked with gpstest and gps status apps indoor and outdoor several hours/days. no satellites found! nothing, zeroooooooooooo. clear sky, no clouds and NO satellites. i'm alone in the universe
what i did:
- device cold start (many times)
- switching on/off date and time from ntp server
- wifi on/off
- google location service on/off
no idea what happen. this is not my first archos. my older g8 had broken usb ports and was changed 2 times. the g9 freezes very often in cpu state "hotplug", run stable only with half speed and gps don't work. why gps need an internet connection?? i have no 3g stick in my tablet and no wifi in my car. yes, i can connect my phone with wifi tethering but sorry, that's not what i have planned. puuh archos, what do you think what customers tolerate. i love android, but the next tablet should be better an ipad
seems, there is a defect. how can i check my hardware before i put it in the trash?
thanks,
4carlos
by the way, my htc legend with froyo works great. it beams my to every point i wish!

Sorry to hear all you guys are having such problems with gps lock.
I have an original 8gb 9g classic. I have taken it through Honeycomb and up to the last ICS update. I have rooted it, over-clocked it and it has taken everything that I have thrown at it!
In every case, the gps has been first class. Using gpsstatus from the market, it locks on to 9 sats from inside my house within 30 seconds.
It was originally set to europe.pool in the gps.cfg file and I got a good lock with that. When I changed to rooted custom fw, I downloaded fasterfix from the market and used it to change the gps.cfg to uk.pool. This speeded up the lock and increased the number of sats to 11.
One thing that may help, has anyone tried toggling airplane mode on then off again. Whenever I install a new rom, on phone or tablet, I reboot the system at
least twice after setup and then toggle airplane on/off. This was an instruction in some roms that had wifi issues and I now do it as a matter of course.
It may be worth a try.
I use Co pilot live as satnav and it has never failed to lock on within seconds of being set up.

GPS on G9 still behaves strange...
First of all, thanks for posting your observations.
The GPS issue remains little mystic though
uphall said:
In every case, the gps has been first class. Using gpsstatus from the market, it locks on to 9 sats from inside my house within 30 seconds.
Click to expand...
Click to collapse
I just got a fix within a minute, yesterday it was a no go!
The device actually needed a reboot before. What is responsible for this locking???
I got the fix by...
- deleting the AGPS data in the settings menu of GPStool
- setting the data update interval to never
- unchecked set system time from server in the device settings
- Wifi and 3G were disabled as well
So it's possible to get satelite fix without network connection.
But something may lock the interface. Afterwards it seems to be impossible to get a fix again... at least things get worse.
BTW, GPStool and the AGPS "framework" of the G9 use definitely different data bases for the assisted data. Maybe this causes locks as well...
So from what i can tell... disabling the AGPS function in GPStool definitely helped to get a fix.
uphall said:
It was originally set to europe.pool in the gps.cfg file and I got a good lock with that. When I changed to rooted custom fw, I downloaded fasterfix from the market and used it to change the gps.cfg to uk.pool. This speeded up the lock and increased the number of sats to 11.
Click to expand...
Click to collapse
O.k. might try fasterfix... though it seems to set the timeserver to another domain... What else does it do?
We need more understanding of the mechanism in general.
Did anyone try the Gingerbread setup on ICS yet?
I may post the files here...
uphall said:
One thing that may help, has anyone tried toggling airplane mode on then off again. Whenever I install a new rom, on phone or tablet, I reboot the system at
least twice after setup and then toggle airplane on/off. This was an instruction in some roms that had wifi issues and I now do it as a matter of course.
It may be worth a try.
Click to expand...
Click to collapse
Maybe it's worth a try but maybe it won't help anything.
As far as i can tell, a reboot certainly fixes some kind of lock on the interface.
But as long as we always guess there will be no improvement, nor we'll find the real reason for the missbehaviour.
uphall said:
I use Co pilot live as satnav and it has never failed to lock on within seconds of being set up.
Click to expand...
Click to collapse
You lucky guy
Cheers,
scholbert

Scholbert
I can't find GPStool in the market - is that the correct name?
I would like to try your procedure to find out if my GPS is working at all.
Thx.
Don.

bufflehead said:
Scholbert
I can't find GPStool in the market - is that the correct name?
I would like to try your procedure to find out if my GPS is working at all.
Thx.
Don.
Click to expand...
Click to collapse
i guess :
GPS Status & Toolbox (author EclipSim, can delete agps data)
also nice
GPS Test (author Chartcross Limited)
GPS Status (author espresso3389, nice graphical tool but only portrait mode)
btw.
upgrade to firmware 4.06 (fix for increasing gps stability) did not help in my case. only my problem has more stability now. still no satellites in sight. my htc legend shows a minimum of 5 satellites with the tools from above at my location (indoor) but still nothing with my archos. disappointing.
the better way is to check the gps functionality before rooting the tablet (loosing guarantee!). seems a weak point of tablet.
i'm searching for an external bt mouse. any recommendation? the mouse should be bought in germany.

Is the GPS on Hercules as good as you expect (updated with possible soln.)

I had high hopes earlier when I bought the phone, since some post here said it supposedly has glonass support
But for me, its not a good performer. Some places its fine, but in other places it just can't lock. Sometimes it can't even see the satellites. For example in the train here, my previous phone's GPS (HTC HD2 and Amaze) had no problem in locking, but I couldn't get a lock with this phone..I tried for 4-5 minutes. I have already gotten GPS Status for downloading AGPS data, but still it couldn't get a lock ?
Is it problem with gps.conf ? Right now it looks like:
Code:
/system/etc # find . -name gps.conf
./gps.conf
/system/etc # more gps.conf
#Test
NTP_SERVER=xtra1.gpsonextra.net
#Asia
# NTP_SERVER=asia.pool.ntp.org
#Europe
# NTP_SERVER=europe.pool.ntp.org
#North America
# NTP_SERVER=north-america.pool.ntp.org
XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin
# DEBUG LEVELS: 0 - none, 1 - Error, 2 - Warning, 3 - Info
# 4 - Debug, 5 - Verbose
DEBUG_LEVEL = 5
# Intermediate position report, 1=enable, 0=disable
INTERMEDIATE_POS=0
# GPS Capabilities bit mask
# SCHEDULING = 1
# MSB = 2
# MSA = 4
# default = MSA | MSB | SCHEDULING
CAPABILITIES=0x7
/system/etc #
If you look the NTP_SERVER is set as xtra1.gpsonextra.net (If you put a # before a line it means its commented) but I remember on my HD2 it was supposed to be set as country/place where you are. Like for US it should be NTP_SERVER=north-america.pool.ntp.org and so on...
I did the change, however I didn't see any gains right now...I will test out more..
---Update and possible solution---
I noticed that my lock times have decreased if I manually inject aGPS data using app leo AGPS injector. Also this also reduces the instances of no lock when it can see the satellites. You can get it from here:
http://forum.xda-developers.com/showpost.php?p=16384028&postcount=1907
Basically it was developed for HTC HD2, however it would work with any phone having qualcomm GPS chipset. What it does is, it injects AGPS data and NTP time in qualcomm GPSone engine (in contrast to gps status or any other app which only inject XTRA data and not the time ).
Also I made changes in the stock gps.conf and removed the # before line NTP_SERVER=north-america.pool.ntp.org
and put a # in beginning NTP_SERVER=xtra1.gpsonextra.net (this statement doesn't make any sense xtra1.gpsonextra.net is not a NTP server, its for getting agps data). I suggest if you are having problem remove the # before according to you region.
I have tried it couple of times and the results have been encouraging. It would be great if other people having GPS problem can test it out too and share their findings. Remember to inject the data before using the GPS app. Once the data is injected it should be good for 1 day (maybe even more, but 1 day is safe to say)

Works fine for me so far.

My GPS works even without a data sign, it just takes a minute longer to lock on at 9ft accuracy. I don't know why you start having problems I know that if I want to get GPS lock without a data connection I will need my wifi to be turned in for sure to get a solid lock so I can't define why you aren't getting one, did you try flashing the agps 3.1 psych with no ssl, that really helped me get faster locks.
Sent from my SGH-T989 using xda premium

it's as good/better than i expected. coming from the vibrant, this thing's gps is amazing. lol.

My works great also.

I also recently started a thread regarding this or similar problems. I am curious about the people with no problems; What color is your phone and roughly when did you purchase it?

Works perfectly for me. Get a lock in about 2 seconds I haven't made any changes to any gps related file.

droid75 said:
Works perfectly for me. Get a lock in about 2 seconds I haven't made any changes to any gps related file.
Click to expand...
Click to collapse
What color is your phone and when did you get it?
Also what roms are you guys using?

I'm very happy with my GPS signal, it locks on in less than 10 seconds or so.

i have the titanium and got it mid feb.

Sometimes you have to toggle GPS on and off in mid flight up top in the status bar to re initialize it if it has frozen or anything.
Sent from my SGH-T989 using xda premium

funeralthirst said:
it's as good/better than i expected. coming from the vibrant, this thing's gps is amazing. lol.
Click to expand...
Click to collapse
Word. The vibrant GPS sucked big floppy donkey "insert cartman profanity word here"
Sent from my SGH-T989 using xda premium

I noticed that my lock times have decreased if I use I manually inject aGPS data using app leo AGPS injector. Also this also reduces the instances of no lock when it can see the satellites. You can get it from here:
http://forum.xda-developers.com/showpost.php?p=16384028&postcount=1907
Basically it was developed for HTC HD2, however it would work with any phone having qualcomm GPS chipset. What it does is, it injects AGPS data and NTP time in qualcomm GPSone engine (in contrast to gps status or any other app which only inject XTRA data and not the time ).
I have tried it couple of times and the results have been encouraging, however it could be a placebo also since I didn't give it much time between the fixes. It would be great if other people having GPS problem can test it out too and share their findings. Remember to inject the data before using the GPS app. Once the data is injected it should be good for 1 day (maybe even more, but 1 day is safe to say)

Mafioso said:
I noticed that my lock times have decreased if I use I manually inject aGPS data using app leo AGPS injector. Also this also reduces the instances of no lock when it can see the satellites. You can get it from here:
http://forum.xda-developers.com/showpost.php?p=16384028&postcount=1907
Basically it was developed for HTC HD2, however it would work with any phone having qualcomm GPS chipset. What it does is, it injects AGPS data and NTP time in qualcomm GPSone engine (in contrast to gps status or any other app which only inject XTRA data and not the time ).
I have tried it couple of times and the results have been encouraging, however it could be a placebo also since I didn't give it much time between the fixes. It would be great if other people having GPS problem can test it out too and share their findings. Remember to inject the data before using the GPS app. Once the data is injected it should be good for 1 day (maybe even more, but 1 day is safe to say)
Click to expand...
Click to collapse
It only lasts for a day?

Answer to OP, coming from the vibrant where there were known issues with the GPS antenna, I have had no problems with this phones ability to get me where I wanna go. Sure sometimes it shows me as driving along side the freeway instead of on it, so I feel for all those peoples house my GPS thinks I drove over. Lol
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

DeeXii said:
What color is your phone and when did you get it?
Also what roms are you guys using?
Click to expand...
Click to collapse
Black and I got it in December of last year.

DeeXii said:
It only lasts for a day?
Click to expand...
Click to collapse
Basically XTRA data is current satellite positions on the date which you download it. In a ideal world its good for 7 days since phone can approximately calculate the position of satellites for the next 7 days with it but with increasing error. But if you are getting large lock times there's no harm in doing it daily or alt days as it really a small download (i think 40kb). You can set make a script for automating it also...
Although on Amaze I never had to do it, the GPS was as good without it...maybe they automated it already on it...

This phone has the best GPS of any phone I've had so far.

ArcticWolf91 said:
This phone has the best GPS of any phone I've had so far.
Click to expand...
Click to collapse
really?
When I had the mt4g and the amaze, those seem to be a bit quicker in locking than my gs2. It wasn't that much of a difference probably a minute difference, but once locked, You're good.
I also noticed that my gs2's gps is not as good indoors.. but I don't really care much about that because I only use my GPS when i'm outdoors lol
Overall, the GPS for the gs2 is actually really good.

Teo032 said:
really?
When I had the mt4g and the amaze, those seem to be a bit quicker in locking than my gs2. It wasn't that much of a difference probably a minute difference, but once locked, You're good.
I also noticed that my gs2's gps is not as good indoors.. but I don't really care much about that because I only use my GPS when i'm outdoors lol
Overall, the GPS for the gs2 is actually really good.
Click to expand...
Click to collapse
Yeah. The MT4G also had pretty good GPS, never had any problems there. The Sensation GPS was pretty terrible. This phone locks on quickly and accurately. However, GPS was definitely better on stock than on these custom ROMs.

What the heck is "Fused Location"?!?!?

Can anyone tell me what "fused location" is? Almost everytime I boot my Gnex I get "Unfortunately Fused Location has stopped working", while this does not generally affect how my device runs in any way it is quite annoying and seems to only have started happening since I updated to a 4.2.x based rom.
Any input on what the hell this is and what it does if anything would be great.

dankblaze said:
Can anyone tell me what "fused location" is? Almost everytime I boot my Gnex I get "Unfortunately Fused Location has stopped working", while this does not generally affect how my device runs in any way it is quite annoying and seems to only have started happening since I updated to a 4.2.x based rom.
Any input on what the hell this is and what it does if anything would be great.
Click to expand...
Click to collapse
Read this.
http://www.androidcentral.com/why-nexus-devices-have-no-sd-card

Sorry to bump this, but I am getting high battery usage from Fused Location, saying it's using my GPS, but GPS is turned off. Are you sure it's to do with the file system?

nellisere said:
Sorry to bump this, but I am getting high battery usage from Fused Location, saying it's using my GPS, but GPS is turned off. Are you sure it's to do with the file system?
Click to expand...
Click to collapse
Edit: As pointed out below, my reply here is actually not relating to the topic at hand. I'll leave it, in case someone finds this thread trying to look for fuse filesystem information, though. Sorry about the off-topic reply.
Wikipedia:
Filesystem in Userspace (FUSE) is a loadable kernel module for Unix-like computer operating systems that lets non-privileged users create their own file systems without editing kernel code. This is achieved by running file system code in user space while the FUSE module provides only a "bridge" to the actual kernel interfaces.
Click to expand...
Click to collapse
In Android 4.2, specifically, it's used to take the physical filesystem /data/media and create the virtual filesystem /mnt/shell/emulated. /mnt/shell/emulated/0 is then symlinked to /storage/emulated/legacy, which is symlinked to /sdcard, /mnt/sdcard, and /storage/sdcard0.

Cilraaz said:
In Android 4.2, specifically, it's used to take the physical filesystem /data/media and create the virtual filesystem /mnt/shell/emulated. /mnt/shell/emulated/0 is then symlinked to /storage/emulated/legacy, which is symlinked to /sdcard, /mnt/sdcard, and /storage/sdcard0.
Click to expand...
Click to collapse
Guys, you all get it wrong. According to android source code (FusedLocationProvider), Fused Location is actually a location service which combines GPS location and network location to achieve balance between battery consumption and accuracy. It has no connection to the fuse file system.

oasisfeng said:
Guys, you all get it wrong. According to android source code (FusedLocationProvider), Fused Location is actually a location service which combines GPS location and network location to achieve balance between battery consumption and accuracy. It has no connection to the fuse file system.
Click to expand...
Click to collapse
Actually I was referring to the fused location.apk, not fusedlocationprovider, so what's said above makes more sense being as on the old versions of paranoidandroid it would stop working yet I had no issue with GPS/locations.
Sent from my AOSPA Galaxy Nexus

oasisfeng said:
Guys, you all get it wrong. According to android source code (FusedLocationProvider), Fused Location is actually a location service which combines GPS location and network location to achieve balance between battery consumption and accuracy. It has no connection to the fuse file system.
Click to expand...
Click to collapse
dankblaze said:
Actually I was referring to the fused location.apk, not fusedlocationprovider, so what's said above makes more sense being as on the old versions of paranoidandroid it would stop working yet I had no issue with GPS/locations.
Click to expand...
Click to collapse
My mistake. Ignore my reply, then. Unfortunately, I haven't had any reason to look into either FusedLocationProvider or the apk, so I can't actually be of any use. Sorry about that.

google maps doesn't yet utilize the newly announced Fused Location Provider
Am I correct in the assumption that the current google maps doesn't yet utilize the newly announced Fused Location Provider? I mean I've always kept location services off because of the substantial hit in battery life. Having received the new Google Play Services API, I tried to turn Location Reporting back on, but its hunger for battery hasn't decreased. I had to turn it off after half a day to make it to the end of the day. My guess is that the current version of maps still uses the old API services. Actually, this is my HOPE.

Fused Location= Google's new GPS system
nellisere said:
Sorry to bump this, but I am getting high battery usage from Fused Location, saying it's using my GPS, but GPS is turned off. Are you sure it's to do with the file system?
Click to expand...
Click to collapse
Supposedly ultra-low battery usage and really fast/responsive-- provides the GPS requirements of applications on Android with very little battery usage. It might be using up battery because of some bad coding where it is repeatedly trying to gain access to the GPS but cannot in a loop. Try to turn on GPS and see what other programs you have that are using GPS/Fused Location.

Fused Location Battery Drain
Hi all! I am on a Gnex CM10.1.0 stable. I have started using Carat to try and track down what is using up my battery so quickly. Carat was pointing to the Fused Location as a big drain, so I have force stopped it to see if it will help. I use my GPS a good bit, so will be an interesting test.

Can it be removed if I don't use location ?
sent from Carina Nebula with my Nexus 5 inter dimensional cruiser...

Ltdrev said:
Can it be removed if I don't use location ?
sent from Carina Nebula with my Nexus 5 inter dimensional cruiser...
Click to expand...
Click to collapse
You can disable it trough "disable service" app from the play store
Inviato dal mio Galaxy Nexus utilizzando Tapatalk

Fused Location Provider
The goal of Fused Location Provider (‘Fused’) is to lessen the workload of developers who want to interact with location information. Instead of having an app talk to different location data sources, and provide them with — given that I grokked the slides — a single programmable interface to talk to; Google thus does the hard work in sourcing location, simply feeding it to developers’ applications.
Google does appear to want to drive location usage directly; one simple way to do that is to improve the quality of the signal, and make that signal simple to access. Fused is the embodiment of that ethos, bringing together cellular, WiFi, GPS, and sensor data.
Demos showing off the power of different single systems — WiFI and GPS – compared to the Fused collection showed that Google’s new method is superior to a current single system. That said, while a material improvement, it remains imperfect.
Priority
Developers will have access to three levels of location-information priority. Keep in mind that the more accurate your location data, the more power you are using.
High Accuracy: 5 second check interval, consumes 7.25% per hour, accurate to within around 20 meters, uses GPS when outside, and WiFi when inside.
Balanced Power: 20 second check interval, 0.6% battery usage per hour, and accurate to within 40 meters. This method is what it appears that Google envisions as a way to bring location into a host of new applications, without sacrificing end-user device satisfaction.
No Power: No poll interval, no power consumption, accurate to within around one mile.
Click to expand...
Click to collapse
Source
I disabled it. Its a sub-service from Google Play Service
I also disabled AnalyticsService, DispatchingService, GoogleLocationService,GoogleLocationManagerService,NetworkLocationService,NlplocationReceiverService
I'm enabling it if i need them

Ok I doubt anyone else is as stupid as I am, but if you are, DO NOT DISABLE/FREEZE FUSED LOCATION. Bootlooped my phone.
I blame this guy :
oasisfeng said:
Guys, you all get it wrong. According to android source code (FusedLocationProvider), Fused Location is actually a location service which combines GPS location and network location to achieve balance between battery consumption and accuracy. It has no connection to the fuse file system.
Click to expand...
Click to collapse
Of course it's mostly my own fault for interpreting his comment incorrectly but I was frustrated over the weak GPS signal of my new phone.
FusedLocationProvider is different than "Fused Location 4.2.2-3"
Fused Location 4.2.2-3 = Filesystem in Userspace (FUSE) = Do not disable
FusedLocationProvider = GPS related = Disable at your own risk

tutorialbs said:
Ok I doubt anyone else is as stupid as I am, but if you are, DO NOT DISABLE/FREEZE FUSED LOCATION. Bootlooped my phone.
I blame this guy :
Of course it's mostly my own fault for interpreting his comment incorrectly but I was frustrated over the weak GPS signal of my new phone.
FusedLocationProvider is different than "Fused Location 4.2.2-3"
Fused Location 4.2.2-3 = Filesystem in Userspace (FUSE) = Do not disable
FusedLocationProvider = GPS related = Disable at your own risk
Click to expand...
Click to collapse
ouch! lol!
sorry I don't mean to laugh AT you...Just the situation, can see how that mistake can easily be made

tutorialbs said:
Ok I doubt anyone else is as stupid as I am, but if you are, DO NOT DISABLE/FREEZE FUSED LOCATION. Bootlooped my phone.
I blame this guy :
Of course it's mostly my own fault for interpreting his comment incorrectly but I was frustrated over the weak GPS signal of my new phone.
FusedLocationProvider is different than "Fused Location 4.2.2-3"
Fused Location 4.2.2-3 = Filesystem in Userspace (FUSE) = Do not disable
FusedLocationProvider = GPS related = Disable at your own risk
Click to expand...
Click to collapse
please tell me that you read this and can tell me how you solved it. i think i may have made the same mistake

oasisfeng said:
Guys, you all get it wrong. According to android source code (FusedLocationProvider), Fused Location is actually a location service which combines GPS location and network location to achieve balance between battery consumption and accuracy. It has no connection to the fuse file system.
Click to expand...
Click to collapse
u r right in a way.
But,there's a huge difference b2in location and location provider.
Location is related to a virtual file system(noob guess) and location provider is related to gps.
80% times, deleting fusedlocation.apk will give u a bootloop in AOSP roms.

gsmitchell said:
Hi all! I am on a Gnex CM10.1.0 stable. I have started using Carat to try and track down what is using up my battery so quickly. Carat was pointing to the Fused Location as a big drain, so I have force stopped it to see if it will help. I use my GPS a good bit, so will be an interesting test.
Click to expand...
Click to collapse
Hi 3 years later....
what was the result of your test?

phreakuencies said:
please tell me that you read this and can tell me how you solved it. i think i may have made the same mistake
Click to expand...
Click to collapse
Yes my thoughts exactly. This might be an old thread but it turned out to be relevant to me. This part especially.
Sent from my kali using Tapatalk

So, i disabled Fused Location and when i re-enable it, my gps does not work !! I can't restore my orginal GPS settings and can't use it anymore.My location does not appear in Google maps or other location needed apps.
(I disabled it to use GPS Spoofing for Pokemon GO)