Dual GPS Functionality Disable After Updated to Android 10/MIUI 11 - Xiaomi Mi 9 Questions & Answers

I have a Mi 9 and recently updated via OTA to Android 10 with the bundled MIUI 11. I'm now running MIUI 11.0.6.0 (QFAEUXM) Global Stable.
I just noticed that the Dual GPS option have disappeared from the drop down quick settings, and was replaced by just a "Location" toggle. I used a GPS checker app, and indeed, the dual GPS was somehow disabled or disappeared after the update as it was only showing L1 and E5 bands. For dual bands, the L5 and E5a should also be displayed on the GPS tracker app as well.
Is there a way I can enable the dual GPS back? It's not a major issue, but it will be disappointing as the dual-band GPS was really useful during the short time I used it prior to the update and also one of the reasons why I got this device.

Cherby21 said:
I have a Mi 9 and recently updated via OTA to Android 10 with the bundled MIUI 11. I'm now running MIUI 11.0.6.0 (QFAEUXM) Global Stable.
I just noticed that the Dual GPS option have disappeared from the drop down quick settings, and was replaced by just a "Location" toggle. I used a GPS checker app, and indeed, the dual GPS was somehow disabled or disappeared after the update as it was only showing L1 and E5 bands. For dual bands, the L5 and E5a should also be displayed on the GPS tracker app as well.
Is there a way I can enable the dual GPS back? It's not a major issue, but it will be disappointing as the dual-band GPS was really useful during the short time I used it prior to the update and also one of the reasons why I got this device.
Click to expand...
Click to collapse
I'm on xiaomi eu 9.11.28 and what i see is: L1 and L5 for GPS, L1 for GLONASS , E1 and E5a for Galileo, B1 for BeiDou and L1 and L5 for as i understand QZSS (Japan)
As i understand it's not the option was disappeared, it's just the icon has been changed

Hey, I am also on 11.0.6.0 and have noticed the same missing information and icons for dual GPS functionality. However, I ran the GPSTest app and you can check the attachment.. Just note that I am in the southern hemisphere and did the test indoors.

Double gps icon removed. All gps managers work.

Here's a screenshot from the GPSTest app. Not a single L5 or E5a frequency is shown.

Cherby21 said:
Here's a screenshot from the GPSTest app. Not a single L5 or E5a frequency is shown.
Click to expand...
Click to collapse
May be it's because of your region. Xiaomi love to make things available or not available depending on were you live.

Cherby21 said:
Here's a screenshot from the GPSTest app. Not a single L5 or E5a frequency is shown.
Click to expand...
Click to collapse
This just depends on your current location. As you can see from the flags you're receiving GPS, Glonass and Galileo satellites. Furthermore if you click 'Sky' in the menu you'll see the current satellites and their respective system in a celestial view.
Cheers
Toscha

Just wanted to chime in as a Pixel 4 user.
I get L5/E5a in the USA, but it isn't instant. I have to sit there with the GPSTest application open, and eventually it picks them up. It's not an instant lock even though L1 is instant, and usually not within 15 seconds, despite already having locked on to the satellites which output L5/E5a signals.
On top of that, the L5/E5a bands don't stay locked. After being locked for a short period (maybe 2 minutes?), then they all disappear, and then take some time to come back, then all eventually disappear again. I have GNSS duty cycling disabled in developer options. I think it's a bug, in addition to the minimum accuracy in Android being hard-coded to not calculate better than 12.4ft/3.8m for horizontal and 8.2ft/2.5m for vertical:
https://issuetracker.google.com/issues/146010208

Deleted

Jon8RFC said:
Just wanted to chime in as a Pixel 4 user.
I get L5/E5a in the USA, but it isn't instant. I have to sit there with the GPSTest application open, and eventually it picks them up. It's not an instant lock even though L1 is instant, and usually not within 15 seconds, despite already having locked on to the satellites which output L5/E5a signals.
On top of that, the L5/E5a bands don't stay locked. After being locked for a short period (maybe 2 minutes?), then they all disappear, and then take some time to come back, then all eventually disappear again. I have GNSS duty cycling disabled in developer options. I think it's a bug, in addition to the minimum accuracy in Android being hard-coded to not calculate better than 12.4ft/3.8m for horizontal and 8.2ft/2.5m for vertical:
https://issuetracker.google.com/issues/146010208
Click to expand...
Click to collapse
Same. I just noticed the L5 and E5a bands take a while to lock on, or at least only appear at certain times (mostly at night) on my region (Southeast Asia).

Jon8RFC said:
Just wanted to chime in as a Pixel 4 user.
I get L5/E5a in the USA, but it isn't instant. I have to sit there with the GPSTest application open, and eventually it picks them up. It's not an instant lock even though L1 is instant, and usually not within 15 seconds, despite already having locked on to the satellites which output L5/E5a signals.
On top of that, the L5/E5a bands don't stay locked. After being locked for a short period (maybe 2 minutes?), then they all disappear, and then take some time to come back, then all eventually disappear again. I have GNSS duty cycling disabled in developer options. I think it's a bug, in addition to the minimum accuracy in Android being hard-coded to not calculate better than 12.4ft/3.8m for horizontal and 8.2ft/2.5m for vertical:
https://issuetracker.google.com/issues/146010208
Click to expand...
Click to collapse
It's looks like app scanning for satellite signals. It's not like it's need just to find 3-4 satellites and calculate your location, it's looking for all available satellites and from all available systems (GPS, GLONASS, Galileo and etc.). So i don't think it's a bug it's just a scanning process and it takes some time.
In sky view you can see how statuses of satellites changes in live, so it's not only scan it's a live endless scan process

Here're two screenshots, linear distance of the measurement approx. 50 km. It's also different days (December 17, December 19) as well as different times (12:15 pm, 4 pm). However there're significantly less satellites on the latter screenshot. But in both cases L1 and L5, meaning dual frequency GNSS.
Cheers
Toscha

I have a Xiaomi Mi 9T Pro, Global version (I'm in Europe), running MIUI 11.0.3.0 Stable on Android 10. What I've noticed is that while I do have the Dual Frequency icon and the signals are tracked, they are not used. I'm sure that they were used before, but don't remember if it was before or after updating to Android 10. It does take a few seconds for L5/E5a frequencies to appear using GPSTest, but hen they appear without a problem. But they never show the flag "U", which means "Used". So it's pretty much the same as not having them. I'll test other days and outdoors to see if it's always the same.

I have my MI 8 recently updated to Android 10 MIUI 11.0.3.0 (QEAMIXM) Global Stable. After this, no Galileo Signal is available any more. Under Android 9 it was already working. Hope they will fix this issue.

Related

How bad the GPS problem is?

Lets see if I understand this correctly....
on the samsung galaxy s GPS system, there are 2 options:
1)Use wireless networks: Set the device to use the
wireless networking to indicate your location
2)Use GPS satellites : Enable the GPS receiver to indicate your location
For now, we know that using the option 2 gives us crappy results (loosing signals, cannot lock sattelites, jumping around etc)
Now, for option 1: choosing option 1 means that launching the maps application should indicate where your location is currently by using some kind of triangulation method based on the availability of GSM signal, so it should even work when you are indoor or whenever there is a GSM signal......
But apparently on this phone, it only shows your initial location, then after that even if you have moved 1 km from your initial location, the location indicator arrow is stuck at your initial location, meaning that it doesnt track you and your movement, which means both options simply dont work on this phone....
On my wife's iphone, the GPS functionality works wonderfully even when i am inside a building and it keeps updating your location as you move continuosly.
It just shows you how careless and hasty samsung is in launching this product that even the simplest form of GPS functionality, one that is based on GSM triangulation method, also doesnt work..... and they still went ahead with the launch.....
Absolutely no problems with GSM or GPS positioning now that I'm using I9000XWJG5. Locks on satellites within 22 seconds from switch on. Thats at 30m precision. After 10 seconds more gets to 5m precision.
This is from inside my building. (Using GPS Status to check)
Same here. Your wife's phone probably also uses the mobile network to keep location inside buildings, or wireless networks. Try enabling skyhook, that is all i did.
used skyhook, and assited mode, accuracy set to 50, changed supl/cp settings, but compared to my g1 or hd2 or e61 or 10 year old bt/gps mouse the gps quality is just rubbish. (XXJF3)
no problem even without skyhook, but using skyhook gets locking much faster
i'm comparing it to my old HTC Athena, which takes sometimes over 5min to lock to 1 satellite in the great white open sky.... sigh...
sometimes it wont even lock if the weather is poor, takes like 30min or more to lock, under those conditions.
simply insane.
so SGS i9000 is like a dream to use.
g1 / hd2 / e61 only take seconds to get a full lock with accuracy about 3m. in my opinion skyhook and gps plus are needless if you have a working cb a-gps.
From my experience its the rom. As my gps worked fine with default FE3 (optus au) rom even indoors but when i flashed G5 (latest euro) i could only lock onto one sat outdoors even with skyhooks setting. Then i installed Samset 1.2 update.zip the gps works again, thats just my 2cents
widjaja74_us said:
It just shows you how careless and hasty samsung is in launching this product that even the simplest form of GPS functionality, one that is based on GSM triangulation method, also doesnt work..... and they still went ahead with the launch.....
Click to expand...
Click to collapse
For the record I haven't had any issues with GPS other than it being fair slower than my Milestone.
Didn't you sell your Galaxy S anyway?
Unimaginative said:
For the record I haven't had any issues with GPS other than it being fair slower than my Milestone.
Didn't you sell your Galaxy S anyway?
Click to expand...
Click to collapse
Hey mate, I think I've seen you around the WP forums.
Quick question for you - I have a Milestone and am currently contemplating throwing it on eBay and grabbing the Galaxy S. Is there anything you miss from the Milestone?
ShaggyDragon said:
Absolutely no problems with GSM or GPS positioning now that I'm using I9000XWJG5. Locks on satellites within 22 seconds from switch on. Thats at 30m precision. After 10 seconds more gets to 5m precision.
This is from inside my building. (Using GPS Status to check)
Click to expand...
Click to collapse
The same here. The problems start when I go out and start to drive around in my car. My GPS is absolutely useless when you move around outdoors, but locks in a few seconds indoors.
widjaja74_us said:
Lets see if I understand this correctly....
Click to expand...
Click to collapse
Let me see if I understand this correctly. You have sold your SGS and you are still coming back here to crap on about the GPS and other small things which are only occurring on some people's phones and not others?
For the record, everything on my phone has been running silky smooth since day one. Lag only occurs with too many apps open and this is to be expected from an operating system that can multitask.
navmanyeah said:
Let me see if I understand this correctly. You have sold your SGS and you are still coming back here to crap on about the GPS and other small things which are only occurring on some people's phones and not others?
For the record, everything on my phone has been running silky smooth since day one. Lag only occurs with too many apps open and this is to be expected from an operating system that can multitask.
Click to expand...
Click to collapse
I sold my phone at a profit because currently i cannot afford to have unreliable phone in doing my job... then i searched for something better and can't find any.... so i'm still following the forum to see of all the problems i experience have been fixed .... if thats the case, i might buy another one....
and for the record, i didnt crap about the GPS, i'm just investigating it deeper, becase GPS is important for me...
Thats crap for you

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

Playing Pokemon Go and GPS!

Hi guys, i'm almost bying the Mi8 but i want know about the GPS issues....
I'm reading that a lot of peoples are facing problems with the GPS, how bad is the GPS? They Fix with some kind of updade?
Any pokemon player here can help me?
I know this sounds like a cry, but i have an Oneplus 5, and i'll buy a new device soon from china, unfortunately i can't test until the person get back to Brazil. If someone could help, i'll appreciate. Thx thx
I have the same issue, impossible to play sometimes. Could not fix it yet
I don't know why everyone is talking about issues?
My Mi 8 china with miui 10 from Xiaomi.eu has not a single problem with gps. Okay it is not as accurate as they advertise but 4m is fairly good!
Mirzam02 said:
I have the same issue, impossible to play sometimes. Could not fix it yet
Click to expand...
Click to collapse
You are getting the "GPS not found" message?
Whitch version do you use? Chinese or European?
bassbounce said:
I don't know why everyone is talking about issues?
My Mi 8 china with miui 10 from Xiaomi.eu has not a single problem with gps. Okay it is not as accurate as they advertise but 4m is fairly good!
Click to expand...
Click to collapse
Humm, maybe the European software version is better than China version?
I really really like the Mi8, but so many persons with GPs issues...
One question, how much accurete is the GPS? You can stay in one place without problem?
Thx for the answer
@thiagoserrao
I have not a single problem with it same as my Oneplus 6.
Speak Thiago. The problem is that the appliances for sale, is Chinese variant. And as the device has not yet been released in its Global variant, many users with the Chinese version system are having problems with the device. All this is just a lack of optimization at the moment.
Mine is already on the way, and soon I will pass the Global system version. Since we will not have our language in the Chinese version. The device is recent, and its development is still crawling.
I come from a Nexus 6P and this is no doubt the best GPS I've had in a mobile phone. In my experience, the Xiaomi is much much better than the Nexus, both faster and more accurate. I'm using the official global ROM but the Chinese ROM was perfectly accurate as well.
after play pokemon go the mi8 gps will lock and no data received with gps test tools
My new buyed MI 8 from Taiwan store has GPS problem,
I noticed when I play pokemon go and the gps not found message appear and disappear
I shut down the pokemon go and open gps test tool
no data will be received
I restart the phone and stuck
I must turn off it by push power button 10 secs
and start it again
then the gps test tool can receive data from gps
thiagoserrao said:
You are getting the "GPS not found" message?
Whitch version do you use? Chinese or European?
Click to expand...
Click to collapse
Yes, I keep getting it.
Miui Global 9.5 / Stable 9.5.13.0.
2 days ago I installed the "Gps status and toolbox" app from the play store and used the "Manage A-GPS State" option to reset and re-download the A-GPS XTRA Data.
After rebooting no issues for the whole day. Today the annoying message is back.
Don't use MIUI 9. Try MIUI 10.
ssssssss530 said:
My new buyed MI 8 from Taiwan store has GPS problem,
I noticed when I play pokemon go and the gps not found message appear and disappear
I shut down the pokemon go and open gps test tool
no data will be received
I restart the phone and stuck
I must turn off it by push power button 10 secs
and start it again
then the gps test tool can receive data from gps
Click to expand...
Click to collapse
Sometimes i install the MIUI 10 on my ONEPLUS 5, but i always got the message "GPS NOT FOUND", same problem that you are getting on MI8, i think this is really a Software issues :/. Well, thx for your reply, i really really appreciate! If this problem occurs to me, i'll have to install the Lineage or something like that :x.
Hope my Mi8 don't have this problem :/.
Anyway, the Taiwan version do not have the Band 28 LTE, right?
thiagoserrao said:
Sometimes i install the MIUI 10 on my ONEPLUS 5, but i always got the message "GPS NOT FOUND", same problem that you are getting on MI8, i think this is really a Software issues :/. Well, thx for your reply, i really really appreciate! If this problem occurs to me, i'll have to install the Lineage or something like that :x.
Hope my Mi8 don't have this problem :/.
Anyway, the Taiwan version do not have the Band 28 LTE, right?
Click to expand...
Click to collapse
I unlock bootloader yestoday, all data reset, and reinstall app again . I go outside and open google map, the gps get position soon,but after 50 mins without shutdown google map , I found the position is not changed, the gps hang. I use gps tool to clean and repair agps data , the mi 8 soft restart , but the gps is still hang, I shutdown and turn on the phone again , the GPS live again.
My mi8 is running global stable version miui 9 9.5.13.10. I saw the newest develop version miui 10 have many bugs , so I am still waiting the right version released.
By the way,Taiwan version do not have the Band 28 LTE, just include B1 / B3 / B7 / B8 / B38 / B41,and suppot 2CA include B1 + B3、B3 + B3、B7 + B7.
Use gps mode with only device to prevent from fused lcation service lock gps
I flash the 8.8.7 global developer miui 10
Gps still hang when pokemon go or gps test tool run
Even when camera use location tag
You need shutdown the phone and force restart it by click power button for 10 secs
After some test, I use the gps with only device mode
The gps is normal for 30 hours without hang(gps tool shows no gps, not 28 gps without signal).
ssssssss530 said:
I unlock bootloader yestoday, all data reset, and reinstall app again . I go outside and open google map, the gps get position soon,but after 50 mins without shutdown google map , I found the position is not changed, the gps hang. I use gps tool to clean and repair agps data , the mi 8 soft restart , but the gps is still hang, I shutdown and turn on the phone again , the GPS live again.
My mi8 is running global stable version miui 9 9.5.13.10. I saw the newest develop version miui 10 have many bugs , so I am still waiting the right version released.
By the way,Taiwan version do not have the Band 28 LTE, just include B1 / B3 / B7 / B8 / B38 / B41,and suppot 2CA include B1 + B3、B3 + B3、B7 + B7.
Click to expand...
Click to collapse
ssssssss530 said:
I flash the 8.8.7 global developer miui 10
Gps still hang when pokemon go or gps test tool run
Even when camera use location tag
You need shutdown the phone and force restart it by click power button for 10 secs
After some test, I use the gps with only device mode
The gps is normal for 30 hours without hang(gps tool shows no gps, not 28 gps without signal).
Click to expand...
Click to collapse
This is so non sense, Xiaomi do not fix this for like 2 big updates, i don't know what they are doing there... x_x
I bought mine yesterday, if they still fu** up with GPS, i'll sell it and buy one oneplus 6 >_>, i hope everything happens well!! :crying:
i am facing a weird issue with xiaomi Mi8 when i turn the AR mode in pokemon go, the pokemon moves too much, like not normal at all sometimes it even flies out of screen, i did the sensors tests and all are working good someone with the same issue?
jdaniel98x said:
i am facing a weird issue with xiaomi Mi8 when i turn the AR mode in pokemon go, the pokemon moves too much, like not normal at all sometimes it even flies out of screen, i did the sensors tests and all are working good someone with the same issue?
Click to expand...
Click to collapse
I'll soon get mine, my friend is backing from china in 1 or 2 weeks, than i'll test it!
I'm on Miui 10.0.5 and have a lot of troubles with GPS (seems like a-gps is not working, even with all permission and no battery restriction for all apps...).
Did you solve this ?
For Pokemon Go, the compass don't work too (but work in the compass app, so weird...).
did you test it?? i am now in xiaomi.eu 8.9.24 bit still the same...
thiagoserrao said:
I'll soon get mine, my friend is backing from china in 1 or 2 weeks, than i'll test it!
Click to expand...
Click to collapse
did you test it?? i am now in xiaomi.eu 8.9.24 bit still the same...
jdaniel98x said:
did you test it?? i am now in xiaomi.eu 8.9.24 bit still the same...
Click to expand...
Click to collapse
Same issue, problems in xiaomi china 10.0.5 too

Dual frequency GNSS accuracy screenshots

With the December 2019 update for the Pixel 4 and Pixel 4 XL, users now have access to the L5 (US) and E5a (EU) satellite signals. Let's see what you're getting for accuracy.
It seems, to me, that Android has imposed a hard-coded minimum limit on the horizontal accuracy. I initially blamed an app, but it seems like it's Android which has gone from 6ft accuracy to 9.9ft (2012-2013, if I recall correctly) to now 12.4ft (2017-2018) horizontal accuracy. That doesn't make sense to me, unless it's really just v2 of Selective Availability, now client-side. I remember reading, somewhere, about another dual frequency gnss phone receiving l5/e5a signals, but the article stated that those weren't actually being used in measurements. GPSTest shows "U" for them, so I'm not sure why accuracy is no better than before, unless the software is limiting it.
Here's the gold-standard everyone has used for a few years (it's "GPSTest", not to be confused with the countless "GPS Test" apps):
https://play.google.com/store/apps/details?id=com.android.gpstest
It's not consistent in receiving L5/E5a, and that may be because it's heavily overcast in my area of Texas today. My screenshots are from indoors, on this overcast day. "Force full GNSS measurements" is enabled in developer options, although I've not noticed any subjective difference it makes, through all of the months I've used it.
Two screenshots:
https://imgur.com/a/6W6PeKC
Do you mind uploading your gps.conf file? And what carrier do you have?
Jon8RFC said:
With the December 2019 update for the Pixel 4 and Pixel 4 XL, users now have access to the L5 (US) and E5a (EU) satellite signals. Let's see what you're getting for accuracy.
It seems, to me, that Android has imposed a hard-coded minimum limit on the horizontal accuracy. I initially blamed an app, but it seems like it's Android which has gone from 6ft accuracy to 9.9ft (2012-2013, if I recall correctly) to now 12.4ft (2017-2018) horizontal accuracy. That doesn't make sense to me, unless it's really just v2 of Selective Availability, now client-side. I remember reading, somewhere, about another dual frequency gnss phone receiving l5/e5a signals, but the article stated that those weren't actually being used in measurements. GPSTest shows "U" for them, so I'm not sure why accuracy is no better than before, unless the software is limiting it.
Here's the gold-standard everyone has used for a few years (it's "GPSTest", not to be confused with the countless "GPS Test" apps):
https://play.google.com/store/apps/details?id=com.android.gpstest
It's not consistent in receiving L5/E5a, and that may be because it's heavily overcast in my area of Texas today. My screenshots are from indoors, on this overcast day. "Force full GNSS measurements" is enabled in developer options, although I've not noticed any subjective difference it makes, through all of the months I've used it.
Two screenshots:
https://imgur.com/a/6W6PeKC
Click to expand...
Click to collapse
slyyke said:
Do you mind uploading your gps.conf file? And what carrier do you have?
Click to expand...
Click to collapse
Attached with appended .txt extension so that it would upload without having to be zipped.
Google store edition Pixel 4 on Visible (Verizon Wireless's in-house MVNO).
The GPS accuracy here post December update seems to have degraded as well. I had hoped that dual frequency performance would improve both the reliability of reception and overall accuracy but that has not been the case, while it is currently acceptable the position "walks" quite a bit so lane-level positioning seems as distant as ever.
Kalman filters seem to reduce this error but I haven't had the time to thoroughly test. I have always suspected that the inclusion of additional sensor input(barometer, gyroscope and accelerometer) for a IMU approach would assist.
Let's hope additional updates will address this including use of the Galileo GNSS constellation.

Does the phone have dual-frequency GNSS?

The specs say it supports Galileo GNSS (European GPS) but it is not clear whether the phone has dual-frequency GNSS.
All other phones such as the Redmi line are all single-frequency GNSS.
See https://forum.xda-developers.com/redmi-note-8/help/redmi-note-8-support-dual-frequency-t3973491 on how to test whether the phone has dual-frequency GNSS.
I think it is only single freq GNSS. Look at the screenshot.
zizouli said:
The specs say it supports Galileo GNSS (European GPS) but it is not clear whether the phone has dual-frequency GNSS.
All other phones such as the Redmi line are all single-frequency GNSS.
See https://forum.xda-developers.com/redmi-note-8/help/redmi-note-8-support-dual-frequency-t3973491 on how to test whether the phone has dual-frequency GNSS.
Click to expand...
Click to collapse
Have you tried enabling the full GNSS option under developer options?
JBolho said:
Have you tried enabling the full GNSS option under developer options?
Click to expand...
Click to collapse
It does not change anything. Still getting only L1, E1 and B1 frequencies. But I checked only for like 30 seconds outside. Does it needs more time to catch the L5 freqs?
obiwanbartek said:
It does not change anything. Still getting only L1, E1 and B1 frequencies. But I checked only for like 30 seconds outside. Does it needs more time to catch the L5 freqs?
Click to expand...
Click to collapse
I don't know. I do know that the first time locking into satellites takes longer but I don't know if frequencies are affected.
This phone does not support dual-frequency GNSS. The Snapdragon 710 just doesnt support it, afaik. GALILEO works just like the other constellations, in single freq mode.
JBolho said:
I don't know. I do know that the first time locking into satellites takes longer but I don't know if frequencies are affected.
Click to expand...
Click to collapse
I tried longer, about 15 minutes in open space. Nothing changes. Still only L1, E1 and B1 freqs.

Categories

Resources