GPS EPO assistance for s5830? - Galaxy Ace S5830 Q&A, Help & Troubleshooting

GPS EPO assistance for Samsung Galaxy Ace s5830?
Does anyone know if is there a way to implement this fast gps fix for sga?
It takes like 10 minutes, some times more yo fix my gps location on my sga with out a-gps (I can't have interet connection everywhere, I work as a truck driver and travel all europe, romming will take my salary if I want mobile internet.)
I had an other android device, not so popular, it's called NGM Dynamic Maxi, i had the same problem, but when I looked into settings I found this EPO option (Extended prediction orbit, it's one of Mediatek's innovative proprietary off-line server based A-GPS technology. It supports up to 30 days satellite orbit prediction, witch can be used to greatly enhance user experience by improving gps time to first fix (ttff)).
So I used this epo file on my other phone and once a month when i founded an free wifi connection I downloaded this smal file 300kb I think and allways got very fast gps fix 5-60sec, my sga takes 10minutes or more, that really isn't nice, i saw if o connect it to a network it gets it's connection in 15sec but i don't have internet all the time.
Please tell your oppinion if you know something about epo for sga. Thank you, and have a nice day dear reader.

alexpu1u said:
GPS EPO assistance for Samsung Galaxy Ace s5830?
Does anyone know if is there a way to implement this fast gps fix for sga?
It takes like 10 minutes, some times more yo fix my gps location on my sga with out a-gps (I can't have interet connection everywhere, I work as a truck driver and travel all europe, romming will take my salary if I want mobile internet.)
I had an other android device, not so popular, it's called NGM Dynamic Maxi, i had the same problem, but when I looked into settings I found this EPO option (Extended prediction orbit, it's one of Mediatek's innovative proprietary off-line server based A-GPS technology. It supports up to 30 days satellite orbit prediction, witch can be used to greatly enhance user experience by improving gps time to first fix (ttff)).
So I used this epo file on my other phone and once a month when i founded an free wifi connection I downloaded this smal file 300kb I think and allways got very fast gps fix 5-60sec, my sga takes 10minutes or more, that really isn't nice, i saw if o connect it to a network it gets it's connection in 15sec but i don't have internet all the time.
Please tell your oppinion if you know something about epo for sga. Thank you, and have a nice day dear reader.
Click to expand...
Click to collapse
I don't think there is any epo assistance for Galaxy Ace. But you can try the following guide to speed up the GPS lock. Here is the link,
[Trick] Speed Up Satelite Fix for GPS on Android
Hope I Helped

I've tried that before posting, it works only when I have internet connection by using A-GPS.
I don't have internet connection too often because I work as a truck driver and travel all over europe, the romming taxes ar so big that I would have to sell the truck to pay them, and it isn't even my truck.
If anyone knows any fast offline fix similar to epo, or a way to integrate epo in s5830, that would be great.

alexpu1u said:
I've tried that before posting, it works only when I have internet connection by using A-GPS.
I don't have internet connection too often because I work as a truck driver and travel all over europe, the romming taxes ar so big that I would have to sell the truck to pay them, and it isn't even my truck.
If anyone knows any fast offline fix similar to epo, or a way to integrate epo in s5830, that would be great.
Click to expand...
Click to collapse
Actually you need the internet connection only once to download the A-GPS data. After that you can use it anytime while offline. You can also try the following guide too,
F&A GPS+Sensors PATCH
Hope I Helped

Related

[Q] Streak 7 wifi, stock ROM- gps unable to lock

My Streak 7 wifi, stock ROM- gps unable to lock. Other than that, device is great. Wifi connected. In settings, Wireless networks and GPS satellites in use. GPS Status & Toolbox app downloaded aGPS data but not helping, GpsFix app not helping to lock also. Any other suggestions? thanks in advance.
dang1970 said:
My Streak 7 wifi, stock ROM- gps unable to lock. Other than that, device is great. Wifi connected. In settings, Wireless networks and GPS satellites in use. GPS Status & Toolbox app downloaded aGPS data but not helping, GpsFix app not helping to lock also. Any other suggestions? thanks in advance.
Click to expand...
Click to collapse
Not to be too mundane, but have you tried a simple reboot, or going outside where you'd be more likely to get a GPS fix? My T-Mobile S7 has had trouble getting a GPS fix several times, but other times it locks right in.
How long have you left in in clear line of sight of the sky to get a lock? I use mine as my primary in-car multimedia center/GPS and at first, to save battery, would turn it completely off when not in use. I found that when I'd get in my car to go home from work it could take up to 10 minutes to get a lock. Then I started just letting it sleep, have had no battery issues and GPS lock is nearly instant.
Long story short: Give it a good while to lock after a full shut down.And maybe you have, I just thought I'd share my experience.
Jeff
I have absolutely the same issue. After turning it off completely, the GPS does not lock for ages in any sky conditions, etc. Moreover, I put another two Android devices (Galaxy S and Optimus One) also after complete shut off juyst nearby and they are getting locked almest immediately. No doubts, there is a bug in the S7 GPS. But what is it ? Is it a hardware problem ? Can it be fixed ? Keeping it in a sleep mode for a long time is not a good solution for me, though it works indeed.
Does anybody know how to fix it ? At the moment I am using an external GPS. It works perfect, but it is also not that elegant solution.
Same thing here too. I downloaded "GPS test", and found that it will lock on pretty quick, then fire up GPS, and all is well.
margol1 said:
I have absolutely the same issue. After turning it off completely, the GPS does not lock for ages in any sky conditions, etc. Moreover, I put another two Android devices (Galaxy S and Optimus One) also after complete shut off juyst nearby and they are getting locked almest immediately. No doubts, there is a bug in the S7 GPS. But what is it ? Is it a hardware problem ? Can it be fixed ? Keeping it in a sleep mode for a long time is not a good solution for me, though it works indeed.
Does anybody know how to fix it ? At the moment I am using an external GPS. It works perfect, but it is also not that elegant solution.
Click to expand...
Click to collapse
GPS on android devices need the assistance of the cell tower or ISP location to get a quick lock. When you first boot up the ds7 and turn on GPS, make sure you are connected to wifi in order to get a quick lock. If you search this forum you will see a thread that give a fix for this, but I think its too much of a hassle. Just be on wifi for your first lock will do the trick. This is not bug on the ds7, its android.
otnos said:
GPS on android devices need the assistance of the cell tower or ISP location to get a quick lock. When you first boot up the ds7 and turn on GPS, make sure you are connected to wifi in order to get a quick lock. If you search this forum you will see a thread that give a fix for this, but I think its too much of a hassle. Just be on wifi for your first lock will do the trick. This is not bug on the ds7, its android.
Click to expand...
Click to collapse
Really? More misinformation on this subject? No, Android devices do not need aGPS, in this case you're confusing aGPS (ie: download of ephemeris data) with Network location, which are quite different.
And it really doesn't matter if it's the first or the Nth time, if the DS7 is always offline for some reason, it would likely make that first fix take 5+ minutes but subsequent fixes (for 7 or so days) would be fine. However, as soon as he goes online, it's going to download the ephemeris data.
My guess is that his GPS conf is set to the wrong part of the world, so the ephemeris data is basically invalid. FasterFix in the market can help correct this mistake if you're rooted, or you can replace it manually.
khaytsus said:
Really? More misinformation on this subject? No, Android devices do not need aGPS, in this case you're confusing aGPS (ie: download of ephemeris data) with Network location, which are quite different.
And it really doesn't matter if it's the first or the Nth time, if the DS7 is always offline for some reason, it would likely make that first fix take 5+ minutes but subsequent fixes (for 7 or so days) would be fine. However, as soon as he goes online, it's going to download the ephemeris data.
My guess is that his GPS conf is set to the wrong part of the world, so the ephemeris data is basically invalid. FasterFix in the market can help correct this mistake if you're rooted, or you can replace it manually.
Click to expand...
Click to collapse
I beg to differ with you. When I was on stock froyo, I had the same GPS lock problem on one of my trip. So I pulled into a McDonald and connected to their free wifi and got an instant lock. This morning I tested it again. I have been running honeycomb sine Oct 5th and have never turn on the GPS. I connected to my wifi, turned on GPS, and opened Google map and got an instant lock. I didn't have to wait 5+ min..
otnos said:
I beg to differ with you. When I was on stock froyo, I had the same GPS lock problem on one of my trip. So I pulled into a McDonald and connected to their free wifi and got an instant lock. This morning I tested it again. I have been running honeycomb sine Oct 5th and have never turn on the GPS. I connected to my wifi, turned on GPS, and opened Google map and got an instant lock. I didn't have to wait 5+ min..
Click to expand...
Click to collapse
And none of that has anything to do with what I said.......
This is a little FAQ I wrote up on how to fix this problem. Just a matter of replacing the file that runs the GPS, based off the area you live in.
http://tabletroms.com/forums/showwiki.php?title=DellStreakFAQ:GPS-FIX
giveen said:
This is a little FAQ I wrote up on how to fix this problem. Just a matter of replacing the file that runs the GPS, based off the area you live in.
http://tabletroms.com/forums/showwiki.php?title=DellStreakFAQ:GPS-FIX
Click to expand...
Click to collapse
Good list, although not sure why you're specifying dozens of NTP servers vs the pool server, but I assume t-mobile lets anyone connect to its server to download the ephemeris data? Otherwise, probably better to use supl.google.com
Here's mine, for North America, with other regions commented out for NTP. http://dl.dropbox.com/u/334233/gps.conf
It'd be interesting to know if all of the other dozen or so configuration options are actually used, I've heard they aren't, just part of a spec.
I bought my DS7 in the US and I live in Israel. The above explanations perfectly fit my case. Unfortunately, the given link does not include my region (Israel or Middle East, etc). Can somebody help me ? My DS7 runs a stock HC 3.2. The device is unrooted, but I will root it just for solving the GPS problem. BTW, why my Galaxy S bought in Europe does not have such problem ? Is this gps.conf specific in tablets only or in the US devices ?
Another thoughts. Now it seems to me extremely unreasonable to run specific GPS files in different regions. GPS, by definition is supposed to be used in different regions. Should I replace the GPS file in my every trip? Sounds more than unreasonable. I used a Windows CE based PDA with GPS all around the globe without that issue. It does took me a while to fix satellites in a new region for the first time. But then it was getting fixed fast even after complete shut off.
I can't beleive Android is that imperfect. If this option would be included in the menu (e.g. in Regional settings), I would like it. But performing such complicated actions in each trip ???
margol1 said:
Another thoughts. Now it seems to me extremely unreasonable to run specific GPS files in different regions. GPS, by definition is supposed to be used in different regions. Should I replace the GPS file in my every trip? Sounds more than unreasonable. I used a Windows CE based PDA with GPS all around the globe without that issue. It does took me a while to fix satellites in a new region for the first time. But then it was getting fixed fast even after complete shut off.
I can't beleive Android is that imperfect. If this option would be included in the menu (e.g. in Regional settings), I would like it. But performing such complicated actions in each trip ???
Click to expand...
Click to collapse
Stop your trolling, ephemeris data, ie: what's set up in gps.conf, is to speed up cold starts. it does nothing else, it's not Android specific, in fact all it's doing is downloaded a set of the data that your GPS would otherwise have to slowly acquire from the satellites, which takes 2-10 minutes, depending on conditions and how many sats are seen.
All GPS units do this, but GPS units that have a network available will potentially download ephemeris data to speed up satellite acquisition. Otherwise they just download it. Only time you'll really notice it going slow is if it's been more than 4-5 days (I believe 7 is the official data expiration, but the older it is, the less accurate it is) or you've changed areas since you last turned on the GPS.
Keep in mind that phone-based GPS's suck. They're inaccurate, they're not sensitive, their antennas are not optimal. This is true for nearly all PDA's or Phones, Tablets, etc.. Some may be better than others. They're optimized for space, price, and somewhat for battery life. Not accuracy, precision, or cold starts (beyond A-GPS data downloads, which is an OS function that makes the data available to the GPS)
This means my unit is faulty (apparently it is a common problem for DS7). Otherwise I would have similar cold starts for all three devices I have tested (DS7, Galaxy S and Optimus One). On the other hand, in the light of your explanataion, my tests are, probably, wrong. DS7 is WiFi only, while another two are GSM (no data plans though). In other forums, I read that changing gps.conf file in WiFi only devices dramatically improves cold starts. Apparently they all have been connected to WiFi while starting. I have prepared the appropriate file for my region, but don't know how to root my DS7 with stock HC 3.2. The thread I found here is not sufficiently detail for noobs like me. So, in the mean time I will continue using the external GPS. It is indeed much better than the internal one besides the cold start problem (though much less convinient). If you know a link to the step-by-step instructions for rooting DS7 running stock HC 3.2, I will greatly appreciate it.
margol1 said:
The thread I found here is not sufficiently detail for noobs like me. So, in the mean time I will continue using the external GPS. It is indeed much better than the internal one besides the cold start problem (though much less convinient). If you know a link to the step-by-step instructions for rooting DS7 running stock HC 3.2, I will greatly appreciate it.
Click to expand...
Click to collapse
Always possible there's a problem with the GPS, maybe the antenna is defective or connected badly. Hope you figure it out.
I have two bluetooth GPS, one Holux 236 I've had about 6 years, another Columbus V900 I was going to replace the Holux with, as it's newer, should have better sensitivity, and has built-in track logging. Except that its accuracy is off, it's precise.... precisely wrong. It's always about 9 meters off. And my primarily use for it is Geocaching, and my Holux 236 is always dead on.. So my new BT GPS is basically used as a track logger. Ah well All that said, I primarily use the BT GPS with my phone while geocaching or hiking or such, but I have used it on the tablet a few times, but most often I just use the built-in GPS on my DS7 because I don't need high precision with it the way I use it.
khaytsus said:
Stop your trolling, ephemeris data, ie: what's set up in gps.conf, is to speed up cold starts. it does nothing else, it's not Android specific, in fact all it's doing is downloaded a set of the data that your GPS would otherwise have to slowly acquire from the satellites, which takes 2-10 minutes, depending on conditions and how many sats are seen.
All GPS units do this, but GPS units that have a network available will potentially download ephemeris data to speed up satellite acquisition. Otherwise they just download it. Only time you'll really notice it going slow is if it's been more than 4-5 days (I believe 7 is the official data expiration, but the older it is, the less accurate it is) or you've changed areas since you last turned on the GPS.
Keep in mind that phone-based GPS's suck. They're inaccurate, they're not sensitive, their antennas are not optimal. This is true for nearly all PDA's or Phones, Tablets, etc.. Some may be better than others. They're optimized for space, price, and somewhat for battery life. Not accuracy, precision, or cold starts (beyond A-GPS data downloads, which is an OS function that makes the data available to the GPS)
Click to expand...
Click to collapse
Thank you, khaytsus.
All this fix does is speed up the initial contact to the GPS satellites for your region. You don't have to use this, you can wait till the GPS in the DS7 makes contact if you want.
khaytsus said:
Always possible there's a problem with the GPS, maybe the antenna is defective or connected badly. Hope you figure it out.
Click to expand...
Click to collapse
The most strange is that the GPS is fine after getting fixed . At least, no difference with Galaxy S, i.e. roughly the same number of satellites, SNR, accuracy. So, the only problem is unreasonably long cold start. I am not sure how it could be caused by a defective antenna. Anyway, in the mean time I decided to use an external GPS. I have three units, two BT and one mouse, which I used to use with my nettop in the pre-tablet era. Yesterday I connected my Hollux 236 to 12 V using a concealed cable and switch. So, now the procedure is reasonably simple: switch on 236, a few clicks on BluetoothGPS and, when the connection is established, I am clicking iGO8. It works like a charm, besides several additional actions I have to perform. When I will sicceed to root my DS7, I will try to play with the gps.conf file anyway.
P.S. I got an idea to connect my mouse GPS using the DS7 docking unit. I have a simple one with two microUSB I/O. Not sure it will work, but, if yes, it can simplify everything dramatically. I will try it on the weekend and let you know about the results.
Thanks.
OK, after two weeks of testing I still don't have a reasonable solution:
1. The USB mouse GPS connected the cradle does not work at all.
2. My greatest disapointment is with the external GPS. It works perfect... when it works. I am using the Bluetooth GPS application to get connected. After several successful connections, without any visible reason, the GPS is not getting connected to DS7, although the application shows many satellites with large SNR (>30-35). However accuracy = 0 and no GPS signal message in iGO8. This happens only from time to time and as I have already mentioned without any visible reason.
Will try another applications and GPS devices.

Gps is not working anymore

Hi all, my gps seems not to work anymore, i had this phone sice 3 months and used gps few times; in this 3 months i did only one official firmware upgrade , from v10a to v10c , italy no brand) and today i discovered that my gps wont lock any satellites, i tried with gps status, it shows 2 or 3 satellites but it can't join them...
any suggestion? (i tried hard reset 2 times, fixing methods by severl guides, but nothing change) help please!
weird, i have a friend who had the same problem, but he only did was factory reset then WALAH! his gps is working..
My bad , i did a noob mistake ! I just realize that gps for working need 3g antenna... i was in 2g only + wifi and i thought was enough
Sent from my LG-P970 using XDA App
I've the same problem, but my GPS worked previously only with 2G no need of 3G.
It works both 2g 3g and offline.
Slow to make a fix though even on 3g. Offline fix is painfully slow 3-4 minutes with good visibility and no obstacles (trees , high buildings etc)
After flight from Spain to UK took more than 5 minutes for offline fix Ouchhh.
Position error is pretty high too 30 to 50 metres on average in the city and thats on fast internet (i drive a lot ).
But stil works even if it is an excuse of working.
There's no guide or fix for standalone GPS performance.
face it!
second, all the guided/apps/scripts etc that exist, are for A-GPS function.
NOT all people have internet on their cellphone or a big data plan so they can enable it everytime they need to get a GPS Fix.
The only truth is, that P970's GPS implementation is a total CRAP!
(I have the P500 too, that locks -always on standalone GPS- even inside my house near a window)
I dont agree , i can make a fix in less than 30 sec offline at the open
Sent from my LG-P970 using XDA App
This has happened to me before and i needed to restore the official rom, and wipe everything even the recovery.
I agree with morx. Without A-GPS a few minutes, with A-GPS a few seconds. But Optimus One was excelent - two or three seconds without A-GPS, even in a building.
My problem is not time, is the module not working. I've tried with a-gps and waiting for hours, but not even one satellite. I've tried faster fix, and all that stuff. Is the module not working.
capocorp said:
I dont agree , i can make a fix in less than 30 sec offline at the open
Sent from my LG-P970 using XDA App
Click to expand...
Click to collapse
Warm fix maybe, cold fix not likely
Cold fix meaning a big enough distance from last fix position.
I like to test with at least 30 km difference

[Q] No GPS Fix

Hi All,
I got problems getting gps fixes in Germany (Aachen)
In fact, i wont get any gps fix at all, i tried the app "gps status" but nothing happens.
i tried changing the pool servers in gps.conf to de.pool and europe.pool servers,
set near countries (be, nl, lu, fr) as secondary servers and nearly every gps fix thread i found in the last 2 weeks but still nothing works
second mysterius thing is that in my hometown (Duisburg, germany too) there is no problem with my gps connection and i got a fix in like 30seconds.
i dont know if that problem occurs because Aachen is really near to 2 countrie's frontiers but i really ran out of ideas what to try :/
no matter how hard i try to find something myself or edit the gps.conf my gps status keeps like this all the time (attachment)
please help me :/ (and excuse my bad english *blush*)
1. Try "GPS test" from the market. This app will show you the satelites and their position. If after about 20 min. outdoor nothing is showed you have a hardware or rom-problem.
2. If a sat. is shown mybe you have wrong configuered firewall. I don´t remember the process which get the gps-position by the servers.
3. I had never problems with any server, all works fine for me, but with the app "fasterfix" you can change them and give an european a try.
Hope can help you.
1. When im in a good position GPS test and GPS status occasionally see a satellite or two, but they disappear as fast as they appear :/
2. i dont use a firewall at all, i think.. is there a android standard firewall or something?^^
3. i tried fasterfix and some gps.conf tricks from xda, too
also i tried adding or changing different pool.ntp.org servers in my gps.conf
but nothing helps :/
the real funny thing is, that saturday and sunday i was in Duisburg and used GPS for Running and Cycling (Endomondo 30km~) and had nothing near a problem, no edge or something that could indicate gps problems, satfix in under 1 minute and stuff.
Now, back in Aachen, most gps using apps tell me there is even no gps available :/
the hardware and rom didnt changed at all, i really dont know why this mean little thing wont work
thanks for your reply btw!
You should get a gps-fix with gps-test outdoor within 20-30min without an internet-access. Be patient, due a totally new allocation via gps without server-support can take a lot of time (sat-search, time-fixing …). Sats appear and disapper, this is normal during a totally new allocation. After this you can discard a hardware/ROM – problem.
If this work, you can search for the server-access issue to get a faster gps-fix.
P.S.: Android normally haven’t a firewall in stockROM and your attachment in your first post can’t be shown.
The attachment was just a screenshot of GPS status showing no satellites, but trying.^^
so i will try to go out and let that little mean phone search the sky for satellites now^^
humpf... no effect at all...
Then I recommend to go back to stock-ROM (without root of course) an contact the LG support and send it back (don’t forget nandroid backup!). Maybe try it a last time with stock-ROM 30 min outdoor before (to get sure).
It seem to be a hardware defect. The phone don’t get enough signal strength (maybe antenna contact).
Good luck!
May be you can try ny method because i'm using it and it works onder for me..
Here is the link http://forum.xda-developers.com/showthread.php?p=22479338#post22479338

[Q] SIII mni gps problems

Hi all,
i got some problems with my gps
i got some running apps and if am running the gps the signal drops for 10/20 minutes and it comes back
the same with tomtom app ect
currently i am running the HOME_I8190XXAMB3_I8190OXAAMB3_967270_REV00_user_low_ship rom
but it happend with oher roms
sorry for my bad englisch but if someone got a clou please help me
Dikkke
gps fix
try to look up your countries ntp.pool.org adress.
add it to gps file.
google that.
if you have no clue. download -gps fix- or similar) from market. it has a blue/pruple icon.
this app is not from me, bu it makes it easy to replace the standard ntp adress witha local one.
The standard one = usa based. for me, on my phones, this ment i had 300 to 400 ms ping to get the gps time correction signal (~ntp).
this might improve your gps "location fix" speed. that might thus solve your problem, ebcause after that gps doesnt have to keep trying to find or keep correcting the signal.
in short. if your problem is caused by bad or no fixing the timings of gps (which it always needs to do). then gps will keep trying untill it does get a good fix.
also. disable gps if not used.
hope this helps
btw: yuo talk about the gps signal that drops right?
pushquares said:
try to look up your countries ntp.pool.org adress.
add it to gps file.
google that.
if you have no clue. download -gps fix- or similar) from market. it has a blue/pruple icon.
this app is not from me, bu it makes it easy to replace the standard ntp adress witha local one.
The standard one = usa based. for me, on my phones, this ment i had 300 to 400 ms ping to get the gps time correction signal (~ntp).
this might improve your gps "location fix" speed. that might thus solve your problem, ebcause after that gps doesnt have to keep trying to find or keep correcting the signal.
in short. if your problem is caused by bad or no fixing the timings of gps (which it always needs to do). then gps will keep trying untill it does get a good fix.
also. disable gps if not used.
hope this helps
btw: yuo talk about the gps signal that drops right?
Click to expand...
Click to collapse
yep a was talking about the signal drops
thanx for the advise,
wil be back with the results
dikkke
my advice and downloaded from the market fastergps, select your country and does it all ..... 15-20 seconds and takes the gps .... tried it on my .... need root permissions. ...
thank you both
the gps works like a charme
Dikkke

Huawei P9 Plus GPS Quality

Hello everybody,
i would like to get some estimations regarding the quality of the GPS.
Please on the hardware- and the software end.
Last years i used a samsung I9300 and the GPS was fine.
Then i switched to an Elephone P9000. I think from the hardware end GPS was fine, but
it didn't work very well, maybe due to bad software? And it seems to be a common mediatek problem?
I didn't find anything in the internet, what do you think, does the GPS in p9 plus work well?
THX a lot,
Henning
As per my experience my P9 Plus has one of the best GPS I've ever experienced and it even works in the airplane pretty much accurately when comparing to airplane instruments. I'm based in SE Asia and have reception of American, Russian and few Chinese satellites and fix is pretty fast. No complaints here whatsoever.
Yes. GPS is great...
Hi,
in the meantime i also bought this phone.
I can confirm now that the GPS is very good.
It is even possible to see the two tracks on the road next by next if you drive
to a destination and come back the same way.
Also, had never this accurate GPS before...
lg
Henning
Model number?
Great to hear that you all have a good gps signal. I just bought the p9 plus too. But strangely the gps signal seems like "not so good" , in my opinion. The story has to begin with my previous Huawei's phone.
I had previously owned the mate 7, which it was came with KitKat version and the GPS worked flawlessly. I updated it to lollipop then and the GPS still work perfectly, once turn on the gps, it takes only seconds (yes, it's really seconds, less than 5 seconds to be more appropriate...) to locate where I am. Those day I enjoyed using the gps as it was super fast and accurate. But things changed after I updated it to marshmallow recently. It became very unstable, very inaccurate. So I install the app "GPS test" and found that the accuracy is upto 150 feets which is very inaccurate (I can assure that the accuracy on KitKat and lollipop were only few feets or the most 10 plus feets, It was really super fast and accurate previously....). I know that weather, such as cloudy situation will affect the accuracy, numbers of satellites working etc so I tried to find out if that's the case but nope, I compared it with my cheap Elephone gps and under the same time same condition, I open the app and tested the gps, Elephone gave me the accuracy of 12 feets !
Sometimes when I try to use maps, it even can't detect where I am and if it does, it shows a wrong location. So I thought it is the problem of marshmallow as I searched on other forum and discovered that people also facing gps issue on Nexus phone with marshmallow version. I tried fixing it with another app "gps status & toolbox" , and also found out that "use wifi to improve accuracy" had to be turned on but the accuracy still only about 50 plus feets.
Then I bought the p9 plus, and hope that everything shall be very good just like the mate 7 KitKat and lollipop version, but it is not! The accuracy is also 50 plus feets after doing all the improvement work as above. So dear fellows I would like to ask what is your version of marshmallow and what is the accuracy of your p9 plus? Mine is VIE-L29C20B100. I am thinking if my version is not updated to the latest? And if there is a latest version , does the gps work good?
Hey guys!
I´m not really pleased with the performance of the GPS on my P9 plus ... but the app itself could be to blame. I was traveling on the highway and the navigation got confused and thought i´m traveling on the road parallel to the highway (surely minimum 100m distance between them). I´m using OSMand+ for navigation and it worked fine with other phones so far. Which app are you using?
I use Google maps, it works great imho, I came from a Galaxy S5
Try to create a new user profile on the phone. Switch to the new user and check if the GPS still behaves as you mentioned.
Hi all,
just to give some updates on my findings. Recently I went through a youtube video comparing mate 9 and p 9 plus (https://www.youtube.com/watch?v=_0impUegGO0&t=2s), at time 10:32 it showed exactly the GPS app that I use to test the GPS signal and it also showed exactly the same results as my p9 plus. This being said, I believe there is no way we can further improve the GPS accuracy and I suspect it is due to mashmallow problem (as I had said KitKat and lollipop run very well in accuracy and Nexus user with mashmallow also complain their GPS accuracy is not good), not because phone GPS not good. So maybe we will have to wait till Huawei release firmware update for android Nougat and see if it improves the GPS accuracy.
However, having said that, I didn't really find the GPS signal "not good" in real life. I mean, when u use the GPS app test the GPS it gives "not good" accuracy, but when I open the map for navigation, what I experience so far is EXTRAORDINARY GOOD. I turn on the GPS and immediately switch on the map app, it instantly locate where I am, not even trying to "looking for GPS signal", really really fast, really instantly locate where I am. And it is super accurate. So I think maybe the GPS app is not something that we should use to gauge whether the phone GPS quality good or not, the real life performance will tell more truth. Just like Antutu does not always really reflect the real performance of the phone.
So for those who are having GPS problems when using map, I will suggest u all try to use another map app, maybe the problems really came from the map itself but not phone GPS problem. So for this moment I will stop looking for solution to improve the GPS accuracy (on the GPS app wise), and enjoy using my p9 plus, hope u guys too
Hi, as you say, forget tests, how does it actually work in real life.
Bought my wife one a few days ago and last 2 days testing gps driving around was only seconds to fix and no dropouts in about 1 hour driving. Thats my test.
Great phone by the way, and top quality finish.
If only it had an FM radio...
Sent from my HTC One_M8 dual sim using XDA-Developers mobile app
I find it's slow to lock or find a location, compared to my previous phone (Z Ultra).
If I'm somewhere (even outside, away from buildings, with clear view of the sky) it will take a good few seconds to lock onto my location. Old phone, and even my tablet, are almost instant, taking no more than 1-2 seconds.
This is using Google Maps.
Just a minor niggle, but can be annoying when in the car and needing to find directions quickly.
djyoshii said:
I find it's slow to lock or find a location, compared to my previous phone (Z Ultra).
If I'm somewhere (even outside, away from buildings, with clear view of the sky) it will take a good few seconds to lock onto my location. Old phone, and even my tablet, are almost instant, taking no more than 1-2 seconds.
This is using Google Maps.
Just a minor niggle, but can be annoying when in the car and needing to find directions quickly.
Click to expand...
Click to collapse
Staying outside, especially without any buildings around or an empty land, could be harder for the gps to locate you. I am guessing... This sounds not logic but let me tell what I found again...
Recently I use an app which provide public transport info. This app needs gps in order to locate where are you and provide the info for the public transport at the area you are standing at. Just when I switch on the app and yet to switch on gps, my gf helped me to press the "locate me" button and I was telling her don't do silly things as I haven't turn on gps. But right after that the phone located where I was! I was like ehhh...... how come.... I double check and confirmed that I didn't switch on gps!
So again, recently I am adjusting the phone settings hoping to lengthen the phone battery (even though it's already very good. I can use it for 2 days per charge ). I found something very annoying in one of the setting - location services. Numeral time I have chose the 1st option "use gps, wifi and mobile networks (high accuracy)" and it keeps set it back to the 2nd option " use wifi and mobile networks ". I thought it was a bug of the phone but then later when I relate it to the event happened earlier (the public transport event mentioned above), I was thinking could it because I never turn on gps? then I turned on gps and yes, it automatically switch to the 1st option, and when I switch off gps, it auto switch to 2nd option again.
I then realized that other day when the phone located me without turning on gps, I was close to the MRT station which provide free wifi. And I am not sure do you guys ever experience that sometimes when you switch on the map app without turning on gps, the map itself locate where u r (maybe not very accurate but it's at the bearby area), just that when u try to use the map it will ask u to switch on gps.
That being said, I suspect the phone continuously locate where we are by using the wifi router(if any, at the nearby place) because wifi router is location specific? (not sure, maybe expert know this...) and that's why when u don't switch on gps, it is already "pre-locate" where u r and only if u switch on gps it will immediately give u the accurate position. And that also means if u stay outside without any buildings (and so without wifi too), the phone could not pre-locate u and it will solely rely on gps and that's why take some time to locate where u r?
Anyway this weekend I will be going for a long distance trip and will test the gps to see if the phone give good gps signal
just back from the long journey vacation. The phone gps works flawlessly without dropping off at all. And time to locate also excellent within 2 seconds

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