Related
Has anyone pulled the phone apart and read the serial number off the chip. We are trying to compair it to the US phone. If you have the info thanks Ours is a Broadcomm BCM4751 (Captivate)
Can I ask how you know the Captivate has a BCM4751 chip? Did you disassemble and see it? It appears that the Galaxy S generic being sold everywhere else outside the US has the BCM2075 chip that integrates BT and FM radios; at least that's what's being reported by others here.
If it were true that the Captivate/Fascinate/Vibrant in the US are using the BCM4751 chip, then it would truly mean these phones have no FM capability at all and there is no prospect of rooting the phone to disable a software level crippling.
This pisses me off. I was willing to forgo the front facing camera of the US versions, but the fact that they (apparently) went so far as to have samsung supply a different GPS chip to eliminate the FM radio so you are FORCED to use some ****e, data intensive service like AT&T radio instead is just outrageous. With the GPS/compass/antenna problems seemingly going ignored by samsung, maybe I won't get this phone at all.
http://www.broadcom.com/products/GPS/GPS-Silicon-Solutions/BCM2075
bugmenever said:
Can I ask how you know the Captivate has a BCM4751 chip? Did you disassemble and see it? It appears that the Galaxy S generic being sold everywhere else outside the US has the BCM2075 chip that integrates BT and FM radios; at least that's what's being reported by others here.
If it were true that the Captivate/Fascinate/Vibrant in the US are using the BCM4751 chip, then it would truly mean these phones have no FM capability at all and there is no prospect of rooting the phone to disable a software level crippling.
This pisses me off. I was willing to forgo the front facing camera of the US versions, but the fact that they (apparently) went so far as to have samsung supply a different GPS chip to eliminate the FM radio so you are FORCED to use some ****e, data intensive service like AT&T radio instead is just outrageous. With the GPS/compass/antenna problems seemingly going ignored by samsung, maybe I won't get this phone at all.
http://www.broadcom.com/products/GPS/GPS-Silicon-Solutions/BCM2075
Click to expand...
Click to collapse
Well the Galaxy S might have the BCM20751 but untill someone tears down the phone and checks with their eyes. The US Captivate was torn down and it is a 4751. But the 4751 doesn't have BT on it. So it could be all the phones have a 4751 with a seprate BT and FM. The 4751 is supposed to be a better GPS unit then the BCM20751 though.
ah, I see it on the Captivate general forum now. The only teardown of the generic Galaxy S that I have seen anywhere is the original one done in Korea a month ago. The pictures from that disassembly are too low-res for me to make out chip IDs. I tried going through their video of the teardown frame by frame too, but again, I can't see the numbers clearly and I saw nothing that resembled a broadcom chip. The Captivate board layout is much different than the Galaxy S, I can't really even see where the broadcom chip should be on it either.....
You're gonna love this. On my Galaxy S, According to jupiter.xml:
<gll
LogPriMask="LOG_DEBUG"
LogFacMask="LOG_GLLAPI | LOG_NMEA"
FrqPlan="FRQ_PLAN_26MHZ_2PPM_26MHZ_300PPB"
RfType="GL_RF_4751_DANUBE"
BrcmRFwildBase="0x1E2D6409"
BrcmRFclkDiv="21"
BrcmRFclkRefHz="26000000"
pps-enable="false" pps-offset-ms="0" pps-width-ns="100"
/>
Click to expand...
Click to collapse
I changed the RfType to GL_RF_2075_BRCM and it just didn't work.
Well thats good. We've accomplished something. But Broadcomm says this is the best GPS they have ever made some hopfully samsung messed up the code and we get a super good GPS.
TBH - I think we may actually be waiting on the driver from Broadcom. Something about Broadcoms reputation as an open source provider is in question.
sjdean said:
TBH - I think we may actually be waiting on the driver from Broadcom. Something about Broadcoms reputation as an open source provider is in question.
Click to expand...
Click to collapse
Yeah it could deff. be broardcoms side. They better fix it.
Is the 4751 used in any other phones just want to see the performance of the gps on this chipset in other devices..
The mere fact that we have Broadcom chip for GPS and not some off brand that I've never heard before like InCrystal really, really points to a serious issue with the drivers/firmware for the GPS. The phone should be operating in MS-Based mode out of the box anyway and I don't know why it isn't. That's not the only problem it has but standalone mode is not what it should be operating in. Nearly all phones GPS' are truly the pits without network assistance.
Lots of phones use Broadcom for GPS, right off of the top of my head, the iPhone is one of them!
Well I really hope it can operate in stand alone mode reasonably well, it should be able to, I dont see why a phone couldn't. agps is mainly just for helping get locks faster at startup and possibly in areas where gps signals are weak but agps is not going to help you out of the city much etc etc.
However yeah I really hope it is a driver issue and if so broadcom and samsung need to get together or its going to drag both their names down.
Kilack said:
Well I really hope it can operate in stand alone mode reasonably well, it should be able to, I dont see why a phone couldn't. agps is mainly just for helping get locks faster at startup and possibly in areas where gps signals are weak but agps is not going to help you out of the city much etc etc.
However yeah I really hope it is a driver issue and if so broadcom and samsung need to get together or its going to drag both their names down.
Click to expand...
Click to collapse
Well like I said there appears to be some other issues besides the fact that they ship in standalone mode which is awful for any phone.. aGPS is the first choice for most phones (Galaxy S is an exception I suppose!) before falling back to standalone mode which does take 2-3 minutes for a fix. Standalone GPS will always take a few minutes to get a lock, a phone certainly isn't going to perform better than a Garmin and I have yet to see one of those in standalone mode lock faster than a phone with aGPS. aGPS is for an initial fix regardless of other circumstances and it's why phones get such snappy fixes.
Ok, but I posted elsewhere that there's a whole stack of a lot happening behind the scenes, which Im not even Samsung know what's going on.
First, even in Standalone mode, you see data being streamed in the initial few seconds, so there must be something in there.
But Ok, we have:
Operation Mode under LBSTestMode - MS Based, MS Assisted, Network Provider or standalone
GPS Plus - Uses the OneXtra servers
Skyhook - Another form of AGPS
SUPL Settings
And irrespective of what you set the SUPL settings to:
Jupiter.xml - Points to both www.spirent-lcs.com as an acSuplServer then points to bcmls2.glpals.com as the LbsServer.
Then under Location and Security, we have the ability to Use Wireless Networks (using WiFi and Cellular Networks). Even if this is switched off, the phone still wants to enable Wireless and see what's out there.
So that's what, 6, perhaps 7 or even 8 seemingly different settings, different methods, of A-GPS.
No wonder the phone is getting confused.
Cya
Simon
sjdean said:
Ok, but I posted elsewhere that there's a whole stack of a lot happening behind the scenes, which Im not even Samsung know what's going on.
First, even in Standalone mode, you see data being streamed in the initial few seconds, so there must be something in there.
But Ok, we have:
Operation Mode under LBSTestMode - MS Based, MS Assisted, Network Provider or standalone
GPS Plus - Uses the OneXtra servers
Skyhook - Another form of AGPS
SUPL Settings
And irrespective of what you set the SUPL settings to:
Jupiter.xml - Points to both www.spirent-lcs.com as an acSuplServer then points to bcmls2.glpals.com as the LbsServer.
Then under Location and Security, we have the ability to Use Wireless Networks (using WiFi and Cellular Networks). Even if this is switched off, the phone still wants to enable Wireless and see what's out there.
So that's what, 6, perhaps 7 or even 8 seemingly different settings, different methods, of A-GPS.
No wonder the phone is getting confused.
Cya
Simon
Click to expand...
Click to collapse
Interesting, so standalone isn't really standalone at all
I wonder if any of the problems are actually being caused by agps especially as a lot of the "fixes" by users were basically changes to the agps.
Curious....., if you google skyhook and you see how samsung and I think even apple used skyhook etc and all the big fanfare etc over it but it seems to be disabled in this phone.
and some of the fixes were to use the google location server right?
(weren't google roasted around the world for wardriving and recording wifi sites and also the data? hehe), now i know why they did it.. for location services I guess... a bit off topic but just now seeing why there were even interested in wifi sites etc.
So.. this broadcom chip... its supposed to be good? can we eliminate the hardware as being a bad gps chipset?
Other things to keep in mind when determining the chip are BT and wifi. The 2075, for example, provides bt 2.1, which rules out its presence on the SGS, unless samsung decided to install multiple bluetooth chips. So, the chip we are looking for provides either bt, version 3.0 and wifi N and GPS, or one or 2 of those 3, which makes the 4751 way more likely indeed. I also don't see a reason to change the internals of the phone.
Gps is a Qualcomm RTR6285 like desire, nexus, some blackberry.
careace.net/2010/06/09/disassembly-of-the-samsung-galaxy-s/
news.danawa.com/News_List_View.php?nModeC=4&nSeq=1742568
sesamee said:
Gps is a Qualcomm RTR6285 like desire, nexus, some blackberry.
careace.net/2010/06/09/disassembly-of-the-samsung-galaxy-s/
news.danawa.com/News_List_View.php?nModeC=4&nSeq=1742568
Click to expand...
Click to collapse
This:
news.danawa.com/News_List_View.php?nModeC=4&nSeq=1742568
must be the korean version (hardware is diferent)
for example :
http://www.careace.net/wp-content/uploads/2010/06/galaxy-s-disassembly-29.jpg
http://www.danawa.com/cms/popup_image.php?url=http://img.danawa.com/cms/img/2010/07/06/14.jpg
Audio codec is the same (wolfson)
Configuration files show tha GPS chip is bcm4751 in european galaxy s (not GPS BT FM BCM20751 or BCM2075) in captive there are photos also.
it REALLY seems like a driver issue. I can get a lock within seconds in MS based mode like all other Android phones with 6 meter accuracy tracking in my car but the performance diminishes after that and the phone requires a reboot for another fix -- IF GPS doesnt cause a lock up trying to get a lock.
Anyone else notice the same behavior in MS based mode?
Sent from my SGH-T959
as i have said in the gps issue thread my settings are as they were from the factory, and at least for now my gps works, in test mode it sees 9-11 satalites, and locks 5-7 of then in about 9 secs, it even suprised me today when i was stood on my staires surrounded by brick walls it managed to get a fix.
this was however not the case with the first one i had, no matter what i tried i could not get a reasonable fix, so it seems to me like some phones are better then others, even thought they are the same phones, this is why i suggested it could be a faulty batch but that is not the case, so i have no idea why this one works and the other never.
if you want the settings: gps is set to oo
application setting
session type: tracking
test mode: s/w test
opperation mode: standalone
start mode: hot start
gps plus: on
dynamic accuracy: on
accuracy: 50
skyhook: off
use pc tool: off
supl/cp setting
sever fqdn: custom
server: www.sprint-lcs.com
server port: 7275
supl secure socket: on
agps mode: supl
hope these can be of use for someone, please note im in the uk.
edit: just tested out my window and got 8 found / 8 locked satalites in 12 secs
Things are getting even more weird...
I was browsing around in the jupiter.xml file shipped in the JP2 firmware and found what I suspect must be a a typo:
arp-supl-reaiding-time-sec = "1200"
Shouldn't that be: arp-supl-reading-time-sec = "1200" ?
With all that mucking about with wads of configuration files and a bazillion places where (conflicting) settings can be made, this doesn't exactly make me feel better about the reliability of AGPS on this device.
edit: nah, probably not a typo (read as 're-aiding', duh) but an unfortunate name choice anyway. At least it appears consistent with what the app is expecting.
With my Cappy, I use GPS Status and it tells me sometimes its 10 metre accuracy but the blue circle on maps is bigger than that. WTF?
It depends if you're using relative GPS or proper GPS.
If you search around you can find out how to use LBSTestMode (which will tell you how accurate and how quick the GPS fix on your position). I'd tell you what the code is to get into that, but it's different depending on what version of Android you have at the moment.
I am running Serendipity 6.2 do i still have access to that?
Yep, you should.
Go to the phone dialer, and put in *#3214789650#
You should see the GPS menu there.
thanks. I got in there now. What do you mean by relative GPS vs proper GPS
Your GPS will get a really rough "guesstimate" of your location really quickly, but it usually takes a while to get your proper location (within 5~40 meters).
There are (at least) two apps which will help you to see what your GPS is doing and why it is reporting what it is reporting. Both can be found in AppBrain and both are in the Market:
Chartcross GPSTest
GPS Status
In addition, GPS Status allows you to refresh the A-GPS data which speeds up the GPS finding satellites from your current position. (I don't think A-GPS data is refreshed automatically by Android; it was in my HTC WinMobile phone).
I think GPSTest is the easier to understand app and you can see the instant a lock is established with each bird. GPS Status reports to you how long it takes to get its first reliable position reading (which takes a minimum of three birds). Although there is overlap in their functions, the two apps together make one fantastic app!
Overall, for the most reliable GPS information, with full position information and fast position updates WiFi should be on and A-GPS data recently updated (which can be kept updated through WiFi). See this: http://en.wikipedia.org/wiki/Assisted_GPS
The way accuracy is determined is by an algorithm which looks at the number and location of the satellites to which the GPS is locked. In general, the more "locked on" birds, the better accuracy will be. The accuracy reading can be misleading. If you have four birds locked and loose two, it will take several seconds to report the change in accuracy. If you are moving and lose and re-lock birds repeatedly, the accuracy value can be 'way off.
BTW, it is the forth "locked on" bird that makes it possible to report altitude.
If where you actually are and where the GPS says you are are not the same, the fault is not exactly attributable to the GPS. What causes this is most likely lost and regained locks on a minimum of three birds. When you are looking at Google Map (for instance) you really don't know what your GPS is doing. At any point in time, Maps could have no consistently useful GPS data (due to the inability of the GPS to "see" three birds). Probably what should happen is the blue triangle should simply disappear unless the GPS is locked on three birds but maybe Google thought that would be un-nerving. So, the blue triangle "wanders" as the GPS "wonders" where you are. Of course, a better SNR in the thirteen receivers which are the GPS would help. When Maps doesn't report where you are correctly, you can see what your GPS is doing with GPSTest. Hope this helps.
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
There is almost no information on GNSS. It probably has Galileo given that the previous generation of Huawei phones did - but some preview sites say yes others no.
The Broadcomm BCM4775x dual frequency (L1 L5) chips were predicted to lead to smartphones with < 1m GNSS accuracy this year. So far there are only two devices that have been seen in the wild and the only phone is the Exynos (EU and parts of Asia) version of the Samsung S9 Plus. Samsung has not announced or documented it or provided any interface in their software and in the relevant xda thread, the owners have not yet been able to confirm that the L5 signal is accessible .
The previous generation of Huawei phones used the Broadcomm GNSS chip prior to the BCM4775x series. We probably won't know what the p20 pro is using until there is a teardown.
If the leakers are to be believed the only two brands that will not use Snapdragon/ Qualcomm SOCs in their flagship phones this year are Huawei and Samsung. As Broadcomm and Qualcom are archrivals/ probably incompatible, Huawei would seem to be the best hope for dual frequency cm accuracy in a phone this year.
Anyone know any more?
It' a shame for a new SOC but no galileo on Kirin 970
http://translate.google.com/transla...é-galileotap-to-wakedolphin-résolu/&sandbox=1
https://www.usegalileo.eu//FR/inner.html#data=smartphone
Even if the p20 pro is not Galileo enable, the most important is it dual frequency capable? Coz gps, glonass and beidou are not few also
mkstowegnv said:
Anyone know any more?
Click to expand...
Click to collapse
The binaries on the P20 vendor partition are for BCM4774 as on older phones.
It supports Galileo (you must download LTO from the internet), but is L1-only.
cr2 said:
The binaries on the P20 vendor partition are for BCM4774 as on older phones.
It supports Galileo (you must download LTO from the internet), but is L1-only.
Click to expand...
Click to collapse
Thanks! When I tried to download the leaked firmware for the p 20, it was 8 Gb unpacked and I had to give up looking inside. Just for the record, if you did the work of finding BCM4774 evidence in the partition (thank you) would you be so kind as to give us a little more detail - even some code snippets if possible (like the xda ers who found and posted firmware evidence for the BCM4775x in the Samsung s9+ - Exynos version).
As you imply and as I understand it, the BCM4774 supports Galileo. But when various people have run GPStest and similar software on various phones, my (limited) understanding is that the phones were getting fixes without an internet connection. I am confused and less informed that I need to be, but do you think that P20 users would need an internet connection to get a Galileo fix? (or are you just saying that it would be a better fix?).
When you say "you must download LTO from the internet" I assume you are referring to the LTO in the following quote from https://www.broadcom.com/products/wireless/gnss-gps-socs :
"In addition to the GNSS receiver chips, Broadcom provides Assisted-GNSS (A-GNSS) and Long Term Orbits (LTO) services. These services are provided from highly reliable cloud-based servers that are fed from a proprietary World-Wide Reference Network (WWRN) stations that collect world-wide GNSS satellite data."
cr2 said:
The binaries on the P20 vendor partition are for BCM4774 as on older phones.
It supports Galileo (you must download LTO from the internet), but is L1-only.
Click to expand...
Click to collapse
Ifixit now has a teardown which confirms the presence of the BCM4774. I put the comment below in Step 10:
Not highlighted is the GNSS Location Hub BCM4774IUB2G above and to the left of the BCM43596 (green). This means that provided the software/ firmware is amenable, this phone should make use of signals from the Galileo satellites (https://www.broadcom.com/products/wirele... ). This is something that different websites and Huawei itself have been inconsistent in reporting.
I tried GPS Satellites Viewer yesterday evening, and it showed me 3 Galileo Satellites without the download of anything. I tried it in the morning again and now I do not find any Galileo satellites... its strange.
Zingel1986 said:
I tried GPS Satellites Viewer yesterday evening, and it showed me 3 Galileo Satellites without the download of anything. I tried it in the morning again and now I do not find any Galileo satellites... its strange.
Click to expand...
Click to collapse
Many apps do not show Gallileo. GPSTest by barbeauDev works.
But it takes a little bit longer until the Gallileo satellites appear in the list.
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.
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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.
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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.
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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
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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
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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
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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.