yashsingh1/xdaforums huggingface dataset:
[Huawei Mate 9 Questions & Answers] palatkik:
I've since had a brief moment to search info on this and I am of the conclusion that the multiple GNSS satellite constellations used by the Mate-9 could be used all at the same time to get a position fix. I.e if only one Chinese satellite and three US satellites are available then a four satellite fix is done by the the Mate-9 on it's single chip multi constellation GNSS receiver. Refer to links I have found on various web sites about this. They mention that having multiple constellations helps by having more satellites but can introduce more errors vs a single constellation as each constellation is controlled independently for position and time. If this is reason behind Mate-9 spiking all over the place, it would be useful to be able to turn off constellations as needed perhaps?

http://gpsworld.com/innovation-quo-vademus/ ,article from 2016 about current status of multiple GNSS constellations and how they work together in navigators.

http://www.insidegnss.com/node/2507 older article from 2011 about same issue and mobile phone navigation.
[Huawei Mate 9 Questions & Answers] RR-99:
As the first article says, it is

theoretically

possible to mix small numbers of satellites from different constellations, but the processing requirements are very heavy. Perhaps the Mate 9 is trying to do that and failing?

Selecting one or another single system to use on its own would be difficult because the optimum constellation will change constantly. Other phones don't need to do this, why should the Mate 9?

The article is out of date with regard to the number of satellites in use.

Galileo is not yet complete but should be quite usable. Its current status is at https://www.gsc-europa.eu/system-status/Constellation-Information

For those finding the Mate 9 GPS not accurate enough, the only answer at present is to tell Huawei support. If there are no complaints then it is unlikely to change.
[Huawei Mate 9 Questions & Answers] hanskie:
One important question. Is that hardware or software issue?

Is there any reason to wait with returning mate 9 back to the shop?
[Huawei Mate 9 Questions & Answers] RR-99:
Galileo transmits in the same frequency band as the other systems, and uses a compatible signal format. So I would guess that there is no hardware problem.

If Huawei has got the software wrong they should be able to fix it with a future upgrade.

What does their tech support say about it?
[Huawei Mate 9 Questions & Answers] 5[Strogino]:
I bet on software problem, but who is to blame?

Tested three apps:

1. GPS Test (Chartcross Limited)

2. AndroiTS GPS Test Free (Alessandro Bonetti)

3. GPSTest (barbeauDev)

Only third shows accurate results (all satellites supported), but also it uses GNSS format.

I wrote to first and second devs, but still waiting answers from them.

I don't think that it is problem of Huawei's software.
[Huawei Mate 9 Questions & Answers] RR-99:
Strogino,

Where is Galileo in your tests?
[Huawei Mate 9 Questions & Answers] 5[Strogino]:
At my test no Galileo found.

But there is one in palatkik's post #72, so Mate 9 can show Galileo. Is it right?
[Huawei Mate 9 Questions & Answers] RR-99:
Yes, you are right. It does show the EU flag for one satellite. But is that is a correct identification?

Galileo has more satellites than Beidou, so why has only

one

user seen

one

satellite?

Something is not right with the Mate 9 GPS.
[Huawei Mate 9 Questions & Answers] ryyniuu:
quick question - is the Mate's 9 GPS good enough just for car navigation?
[Huawei Mate 9 Questions & Answers] hanskie:
Quick answer:

Yes

Just for car navigation mate 9 is good enough.

For other activity (sport) mate 9 is a rubbish.

Wysłane z telefonu Mate 9
[Huawei Mate 9 Questions & Answers] RR-99:
Yes, I am using it for car navigation. To me it is not useless, but I would like to see it fixed. B156 perhaps?
[Huawei Mate 9 Questions & Answers] hanskie:
This is the description of the B156 firmware. There is no information about gps.

This update adds a 10x zoom and optimizes the drawer homescreen display.

[What's new]

Added a 10x zoom, which enables you to take clearer photos from a distance.

[Optimizations]

Optimized the drawer homescreen display for a better experience.

Decreased the CPU load for several core processes to achieve better system performance.

Improved device security with Google security patches.

Wysłane z telefonu Mate 9
[Huawei Mate 9 Questions & Answers] palatkik:
I have since got a reply (below) from Huawei UK office about my graphic I sent them. They basically aren't going to help more, but if more people send in complaints that are similar perhaps we may get an update? I am still investigating my device - and will post more as I notice things.

Thank you for your reply and for the provided graphics.

In response to your query, if you think there is a fault with the GPS module we can book your device in for an inspection and repair in our authorized service center.

However, my personal opinion is that this is a matter of compatibility between our device and third party apps like Android Fitness app and it is very probable that the device would return from the service center with the status 'No faults found'.

Thank you for the feedback, it will be submitted to the proper department.

​
[Huawei Mate 9 Questions & Answers] RR-99:
That was a foolish reply from Huawei.

The Mate 9 runs Android, and any app using GPS will get the coordinates from the Android API. The app would have no reason to modify those coordinates.

Android will get the coordinates from the GPS receiver, either directly or perhaps after processing by the Kirin CPU.

Why are Huawei making a phone using Android, and then saying it cannot run Android apps that run on any other Android phone?

This is what I would do. I would use the official Google Maps or Google Earth apps and plot a few locations on both phones. If they show that the Mate is less accurate, I would send them to that contact person and ask them if they are saying that they do not support the official Google Android apps and blame them for the errors?

I would also ask them what app do Huawei use to plot accurate positions? And if they do not have one, why do they fit a GPS receiver that cannot be used to give accurate locations like any other phone?
[Huawei Mate 9 Questions & Answers] stevewalker007:
Going to purchase

Now I am going to purchase this device
[Huawei Mate 9 Questions & Answers] hanskie:
And...?

Wysłane z telefonu Mate 9
[Huawei Mate 9 Questions & Answers] palatkik:
I was thinking of Google only apps to question Huawei with but I am not familiar with any Google app that can record a moving track (say continuously every second of time) to highlight the jumps (spikes of over 100-200 meters) in track flow that the fitness apps display with Mate-9 for just a second of time then revert back to true in track position in correct spatial and time flowing positions? Is there a way to do this I wonder with Google only? I thought Google just enables recording of point (like waypoint) locations?
[Huawei Mate 9 Questions & Answers] RR-99:
Yes I see your problem. I don't know of any 'official' google app to plot a track. That's why I suggested single points, but they aren't going to show the big temporary errors that you are getting.

The best supported tracking app is probably Geo Tracker. Perhaps you could send Huawei a plot with that and ask them if they don't accept that, please say what app they do support. And if they don't support any app, what use is their GPS?

If it's fast movements that are being shown wrongly, that suggests the Mate's GPS processor isn't working fast enough.
[Huawei Mate 9 Questions & Answers] RR-99:
I've made contact through another forum with someone who has a Mate 9 and has been in contact with Huawai tech support about GPS problems.

Waiting for details - will post here if of any use.
[Huawei Mate 9 Questions & Answers] palatkik:
For me until now the best results I have got are with the SportyPal app set to "Use Alter-GPS" mode on that is for "better" fixes and Mate-9 in GPS/Wifi/GSM location mode. I am not aware of other fitness apps offering more than one GPS mode to track data? I compared it with S-Health fitness app running at same time on Mate-9 and both record almost identical tracks with same spikes in position and the S-Health offers one GPS mode setting only. I suppose having two fitness apps at same time may degrade results if they interfere with each others operations. Still with just SportyPal fitness app only used results not as good as a Samsung phone with Mate-9 adding about 1km of errors each 10km track traveled.

I got a reply from Huawei in UK this yesterday morning. They aren't going to recommend any app, but I suppose if enough people ask they might do something about it?

Dear ... ,

Thank you for your reply.

In response to your query, we do not provide support for third party apps so we will not be able to recommend you a specific fitness app. Please check your GooglePlay Store for more fitness apps. However, your feedback is very important to us and will submit it to the proper department.

I trust that the above information will be helpful. Of course, if you have any other queries, don't hesitate to contact us and we'll be happy to assist.

Best regards,

....

Huawei Customer Care Team

--- Original Message ---

FROM:.....

SENT:24/02/2017 07:50:00

To:Huawei UK-Mailbox

SUBJECT:RE: Huawei UK [Case ID #: ......]

Dear Huawei,

Thanks for the reply with which I agree there is no point in me sending my device for “repair” as the device is performing “without fault” and probably like any other Mate-9 device today.

** However as Huawei is marketing the Mate-9 as an Android device that relies on functionality with access to Android app market can Huawei suggest any Android GPS Fitness market app that actually works with the Mate-9? I have tried several and none do work due to momentary spiked position errors of 100’s meters although the same apps work OK on another brand Android phone.

Kind regards

​
[Huawei Mate 9 Questions & Answers] RR-99:
Well palatkik I think you are going to be unhappy with this. I have just got an email from the guy I met on another forum. He had complained about the GPS on the Mate 9 and this was their reply

Thank you for Contacting Huawei Customer Services.

Our GPS is a bit pickier than most systems regarding it choice of GPS system to use and only selects one to use at a time. This is to help with battery.

Galileo for some reason never gets selected, why that is, we have yet to have explained to us in Customer Services. It is available, but is the lowest priority system.

I am sorry this has interfered negatively with your hobby, which does look fun. But this issue not something we can or will be changing.

And this is what he said back to them

Thank you for explaining that the Mate 9 only uses one system at a time. That explains why it is less accurate. Other phones use two or more systems, and with Galileo and Beidou building up to global coverage there will soon be four systems to use.

This seems a very serious mistake by Huawei, and I think you should tell your developers that it is going to lose them lots of customers when this failing becomes generally known.

So, the advertising of all the GPS systems is very misleading. It is only using one of those systems at a time, and they are never going to change it.

Personally I can manage with this for the moment because it is good enough for driving with a GPS route program, but I can understand why it is not good enough for sporting apps. This explains why they won't recommend one - they know they won't work properly.

I'm going to send this to the distributor I bought my phone from. They ought to know that the Huawei advertising is misleading.
[Huawei Mate 9 Questions & Answers] palatkik:
And yet all of the GPS satellites are tracked and showing on the GPS Test apps. Also if one installs an NMEA logging app you can see all of the constellations are being logged (I think?).?

When I was exercising past an advertisement for the Mate-9 the other day it said "A STEP AHEAD" and I could only think to update it so:
[Huawei Mate 9 Questions & Answers] hanskie:
My decision is to return this rubbish back to the shop, but at the moment I can't find an alternative :( I don't believe Huawei that they will do something with this phone.

Wysłane z telefonu Mate 9
[Huawei Mate 9 Questions & Answers] RR-99:
palatkik

Yes the test apps show the satellites, but that does not mean the phone is using them all to calculate the location. If it did then it would be tracking your path correctly and not jumping about.

I think what the Huawei guy said about using only one system explains what you find.

If you are moving rapidly and you are between hills or buildings, the pattern of satellites you can see will be changing rapidly. Sometimes there will be more GPS, sometimes more Glonass.

Instead of using all the satellites to find the best position, the phone is switching from one system to another and then back again. And as we know, it takes a little while to calculate the correct position when the receiver locks on.

So the Mate 9 is going to be fine for driving directions when a navigation app only needs to know which is the nearest road. And it will be OK if you are standing still when you want to know where you are. But if you want to plot a path accurately it will be no good at all, as you have found.

This seems to be one of the decisions Huawei has made to get the excellent battery life that we enjoy.

hanskie

If you want a replacement high end phone then it looks like the best will be the Samsung S8 or 8+ that will be announced soon. I got the Mate when I missed out on the Note 7. I am waiting to see the Note 8, but if Huawei does fix the GPS before then I might stay with it.
[Huawei Mate 9 Questions & Answers] hanskie:
Probably, the problem occurs only when you shake the phone during track recording.

Someone has tested this and found that occurs even if driving a car but if he shake the phone.

Maybe it a accelerometer or gyroscope sensor?
[Huawei Mate 9 Questions & Answers] RR-99:
I don't think so.

When the phone is in the car it is using satellites that it can see through the windows. And the GPS antenna in the phone is not omni-directional. So when you move the phone about inside the car it will see different satellites through different windows.

That will have the same effect of location jumps when the phone jumps to different systems due to its design of only using one system.

IMO this is just another indication of the bad design mistake. It is a great pity because so much of this phone is very good. And Huawei is not listening.
[Huawei Mate 9 Questions & Answers] hanskie:
Let's make a test. I have done today this test two times and this theory is good.

I cnfinm that when you fast turning the phone and shaking them then GPS making some issue in track recording. When you stop shaking gps is correct.

That means the phone has wrong construction. Something is wrong.

---------- Post added at 06:05 PM ---------- Previous post was at 05:47 PM ----------

Something interesting.

I have made a test with two apps NMEA Logger and Geo Tracker at the same time during shaking the phone.

NMEA logger shows good track but Geo Tracker shows track with issues.

What is going on ?

http://cloud.tapatalk.com/s/58b5aef1991c6/Zrzut ekranu-1.jpg?

http://cloud.tapatalk.com/s/58b5aefbee522/Zrzut ekranu-2.jpg?
[Huawei Mate 9 Questions & Answers] RR-99:
Which NMEA logger app did you use?
[Huawei Mate 9 Questions & Answers] hanskie:
https://play.google.com/store/apps/details?id=com.peterhohsy.nmeatools

Maybe this logger recording only part of data? Is that possible?

Wysłane z telefonu Mate 9
[Huawei Mate 9 Questions & Answers] RR-99:
I had a drive using that app. The results for me are just the same as for Geo Tracker. It's quite good enough for driving, but I can understand that for sporting use it would not be accurate enough.

I cannot explain why you had different results.
[Huawei Mate 9 Questions & Answers] hanskie:
It's not important. On Friday it's the last day with my mate 9. I'm going to return this rubbish to seller :(

Mate 9 pro has got the same issue.

Wysłane z telefonu Mate 9
[Huawei Mate 9 Questions & Answers] kazprotos:
MHA-L09C185B156 here. Stock unrooted etc.

I can see what seems to be Galileo but no GLONASS sats. I thought it supported both?

But on Xiaomi Redmi 4 I can see GLONASS (but no Galileo of course). Also phone has had poor GPS since I replaced screen.

Is this normal?

Only got the Huawei yesterday so I haven't had a chance to try it on the road etc.

GPS + Galileo + GLONASS would be great!
[Huawei Mate 9 Questions & Answers] RR-99:
On your Mate 9 screenshot, the satellites shown as (?) are Glonass.

It can

see

all the satellite systems, but Huawei says it only

uses

one system at a time. See post #94.

Normally it uses only GPS.

Sometimes it switches to Glonass.

It never switches to Beidou or Galileo. Perhaps it might when they have more satellites in use? But I doubt it.

The Mate 9 GPS is badly designed and they are not going to change it.
[Huawei Mate 9 Questions & Answers] kazprotos:
Ah is see the elevation etc stats match up. So no Galileo for me yet
[Huawei Mate 9 Questions & Answers] RR-99:
What phone are you getting instead?

Please come back and show us the GPS test results so we can compare with the Mate 9.

---------- Post added at 09:49 AM ---------- Previous post was at 09:47 AM ----------

You will need a different phone if you want to use Galileo :crying:
[Huawei Mate 9 Questions & Answers] hanskie:
I want my money back. I will wait for something new. Maybe samsung s8+... i dont know. Now i apologized my old samsung galaxy note II :)
[Huawei Mate 9 Questions & Answers] indy1369:
Apology for translation (Google Translate). I have a tablet Huawei MediaPad LTE M3 and phone Mate 9. In both'm super satisfied overall with GPS. And both the speed of the assembly position (within a few seconds), and the position accuracy calmly to 1-2 meters. When I compare it with my cell phone before the previous ZP998 Zopo Mobile (9 Mate before I had even Honor and 7 too well) that I compiled the position (ZP998 Zopo Mobile) calmly 10th minute with tremendous precision, even after changing its internal GPS antenna in your mobile and these two devices are super fast trains. Then I tested each other in the app GPS Test plus, the test came out as the winner tablets. Faster assembly position and accuracy and more visible satellites - GPS (USA), GLONASS (Russia), and Beidou (China). Mate 9 saw only the GPS and the rest were yellow and red question marks (as unknown satellites). Almost certainly it was clear that the yellow question marks are GLONASS and Beidou red (sometimes with my red question mark turned into a red starfish Beida). Given that the tablet MediaPad M3 has always android 6 and app GPS Test plus probably more means an android 6 before 7 on a mobile phone Mate 9, but Glonass satellites Mate 9 also seeing, as I then have installed the app GPSTest ( barbeauDev), who showed me beautifully satellites with US flags as well as by Russian Glonass. Everything will be below the pics. Galileo, I unfortunately did not grab, but they both GPS devices are good.

Mediapad M3(GPS,Glonass,Beido, all - GPS test plus)

View attachment 4060810 View attachment 4060813 View attachment 4060817 View attachment 4060818

Mate 9 ( GPS Test plus x GPSTest )

View attachment 4060829 View attachment 4060828

http://www.huafan.cz/discussion/2373/gps-mate-9-a-mediapad-m3#latest
[Huawei Mate 9 Questions & Answers] hanskie:
@ indy1369

1. Install on your mate 9 Geo Tracker.

2. turn on track recording and go for a walk

3. keep the phone in hand and rotate and shake them fast for a 10 - 20 seconds during walking.

4. take a look at your recorded track and you will see that your mate is not great as you think.
[Huawei Mate 9 Questions & Answers] henrik.dk:
I am following the thread.

I tried today with huawei health to track the route. actually I am just at bed inside my house and the route recorded jumping.
[Huawei Mate 9 Questions & Answers] KJ Chen:
I have the same problem. Jumping all the time. I had no problem with my Mate 7. Just got my Mate 9. It really sucks because I rely upon sports apps like Strava, Sports Tracker, and Geo Tracker so much. I tried all these apps, and all had the same problem.
[Huawei Mate 9 Questions & Answers] Swan Princess:
Interesting how even the European Space Agency was praising the Huawei Mate 9 for supporting their Galileo, but reading this I feel quite so sad. Hopefully they will come out with a patch soon. I'm quite the active walker and public transport user and I love logging my journeys! Plus that whole Photo GNSS tag thingy. I did found a few articles regarding it, one even showing the Mate 9? screen with Galileo satellites, instead of question signs, but I can't post it due to being still new here just yet. Galileo sats should come up with their own icon in some software, not question marks. If they do, that seems like a software error that ought to be reported for Huawei.
[Huawei Mate 9 Questions & Answers] RR-99:
It's been reported to Huawei. They agree it's broken but they aren't going to do anything about it.

Also if you show them the fault on an app - any app - they will say that Huawei does not support that app.

You can try complaining yourself if you think they might listen.
[Huawei Mate 9 Questions & Answers] henrik.dk:
As I pointed out, use the huawei health to track the route and report to them

which they should support.
[Huawei Mate 9 Questions & Answers] RR-99:
Yes the jumping should be reported.

But I was replying to Swan Princess about Galileo. Huawei are not going to fix that.
[Huawei Mate 9 Questions & Answers] palatkik:
I recently was made aware of the Huawei Wear app (available on Google Play). It appears to be another Huawei app like the Huawei Health with a UI that I prefer. I tested it on Mate-9, there are no options to save the tracks to gpx or to delete exercises BUT it also plots a map on Google Maps when online with about 20% added to cumulative distance due to spiked tracks so to all intents fairly useless.

I sent a follow up email to London UK Huawei after they previously said they didn't support 3rd party apps and asked if they supported this one? The reply was somewhat more conciliatory, not saying whether they support the app or not and suggesting they may "improve situation" in future? Perhaps if others complain things will happen?

There reply to me below:

Your feedback was already submitted to the proper department and we hope that the situation will be improved in the near future. However, we can send your device to our authorized service center for an inspection and repair if you think there is a fault with the device, but it is very probable that the device will return with the status: 'No faults found' .