Does the phone have dual-frequency GNSS? - Xiaomi Mi CC9 / Mi 9 Lite Questions & Answers

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.

Related

optimus 4x hd confirmed to have glonass support

Optimus 4x HD has glonass GPS!!!! Time for me to buy one as i was worried about it not having it. Gsmarena has it listed as jsut A-GPS and no glonass they should update their info and the rest fo the sites. At least the EU version is confirm having glonass support, proof is here: http://www.youtube.com/watch?v=UxcBdFrjXn4&feature=player_embedded
aaaand... where is proof?
ch3 said:
aaaand... where is proof?
Click to expand...
Click to collapse
The video above or here: http://optimusforums.com/threads/optimus-4x-hd-gps-tests-confirmed-glonass-support.98/unread
If it reads 15 sats, its got glonass. Normal gps chipset wouldn't get 15...
oh.. i see. 10x for info )
I asked LG Norway about Glonass, they hadn't got any confirmation directly from LG, but they did a test, and they found at least 2 Glonass sats, with ID 77 and 74, so I expect that to be cleared then, it's support Glonass
Sent from my LG-P880 using xda app-developers app
axepted said:
I asked LG Norway about Glonass, they hadn't got any confirmation directly from LG, but they did a test, and they found at least 2 Glonass sats, with ID 77 and 74, so I expect that to be cleared then, it's support Glonass
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
More proof here thttp://www.youtube.com/watch?v=k8-yUV9lSkU&feature=player_embedded Is that still not enough proof for ch3 ?
It keeps up with the Galaxy Note just fine and that has GLONASS
I have the phone, and I have installed GPS test. Although it shows Sats with id 70 and up, I NEVER got a lock on those sats, even after Keeping the phone on for more than 10 minutes on an totally empty field, with almost no obstructions. It has glonass in theory, but for any practical purpose it only uses GPS.
According to the linked article the phone is one of the first to use the "SiRFstarV 5t" GNSS chip. That chip has support for GPS and Galileo, and can even do Galileo and Compass, the european and chinese navigation systems. It even has a supression system for active GPS Jammers, again according to that article. ( Sorry it's n German )
hxxp://nachrichten.finanztreff.de/news_news.htn?sektion=nachrichten&id=8495199
For anything practical; the GPS still needs at least 3 times as much time after starting a random App that uses Navigation (in comparison to my iPhone4). So when I want to look at the Bus & Train schedule I have to wait almost 15 seconds until it knows at which station I am. That is, AFTER downloading new AGPS data.
For anything I see it cannot do egnos, waas, msas or any other differential GPS / SBAS, but I might be wrong with the last part...
Direct from the horse's mouth
I asked the question of LG Direct as I am seriously looking at this phone ...
Thank you for your email regarding your P880
Based on the information you have provided me with and reading through your query, I can advise you that this handset recives both GLONASS and GPS support. Although the use of this system is application dependent.
I hope this has been of assistance to you. However, if the information I have provided does not help you or if you have any further questions please email again or contact our Customer Service Team again on 0844 8475454 or via the Web Chat facility on our website and we will endeavour to do our best to resolve your query.
Please could I ask you to complete a short survey based on the response and information that I have provided you today. All feed back given is greatly appreciated and helps to improve LG Electronics Customer Services.
Best regards,
Kyle Wilkinson
(Mobile Phone Support)
LG Electronics UK Helpdesk
----------------------------------
LG Customer Services
UK: 0844 847 5454 Ireland: 0818 27 6954
Mon-Fri 8am to 8pm Sat 9am-6pm Sun 11am-5pm
Click to expand...
Click to collapse
SimonTS said:
I asked the question of LG Direct as I am seriously looking at this phone ...
Click to expand...
Click to collapse
Well,as the CS replied,even the GNSS chip equiped (SiRFstarV 5t) has the ability to catch both GPS and GLONASS
(PLUS,EU Galileo and Chinese Compass in future with S/W update),but seems that the system (NOT only those GPS-dependent app)
written by LG does not use those sats(tested with GPS Status and GPS update)
Its LG problem,not the apps......
Maybe we have to do something on it and push LG to deal with this orz
a little info on the questions of GLONASS support.
here is a dump of a config file from the o4x.
/etc/hmconfig.txt
Code:
# set to 1 to ignore NVM content and always use the default values
USE_NVM = 0
# default values:
DEFAULT_GPS_USAGE = 1
[B]DEFAULT_GLONASS_USAGE = 1[/B]
DEFAULT_SBAS_USAGE = 1
DEFAULT_QZSS_USAGE = 1
DEFAULT_WIFI_USAGE = 0
DEFAULT_MEMS_USAGE = 1
# default position (to initialize PDR if real location is not available at this time)
DEFAULT_LAT = 37.374552
DEFAULT_LONG = -121.914479
DEFAULT_ALT = 0
# Sensors orientation inside the device
# For meaning look at memsData.c
SENS_MATRIX = 2,1,-3,-1,2,-3,1,2,3,1,-2,-3,1,2,3
depending on nvram memory settings, which i do not know what is, this will be set on or off, depending on country i guess.
I can see the GLONASS sats but can't get a lock on them. I really would like to test it out. Hopefully someone figures out a trick or app to force it to lock onto only GLONASS or both.
Dexter_nlb said:
a little info on the questions of GLONASS support.
here is a dump of a config file from the o4x.
/etc/hmconfig.txt
Code:
# set to 1 to ignore NVM content and always use the default values
USE_NVM = 0
# default values:
DEFAULT_GPS_USAGE = 1
[B]DEFAULT_GLONASS_USAGE = 1[/B]
DEFAULT_SBAS_USAGE = 1
DEFAULT_QZSS_USAGE = 1
DEFAULT_WIFI_USAGE = 0
DEFAULT_MEMS_USAGE = 1
# default position (to initialize PDR if real location is not available at this time)
DEFAULT_LAT = 37.374552
DEFAULT_LONG = -121.914479
DEFAULT_ALT = 0
# Sensors orientation inside the device
# For meaning look at memsData.c
SENS_MATRIX = 2,1,-3,-1,2,-3,1,2,3,1,-2,-3,1,2,3
depending on nvram memory settings, which i do not know what is, this will be set on or off, depending on country i guess.
Click to expand...
Click to collapse
Totally has GLONASS
Running JB 4.1.2 was able to connect to 14 sats / found 20...Best I've seen so far.
p880 accuracy
As you can see in the video your advantage of having Glonass is about 10 feet better than GPS only but the advantages of WAAS and Egnos is sub 1 meter accuracy which I cant get out of any telephone but can get by using a bt-339 hardware and Bluetooth GPS Provider software. The phone is capable but not configured. Buying this phone for sum accurate positioning as is is a waist of money. Even micello doesnt work on jellybean. See my video at youtube under LG Optimus 4x HD Truth Im unable to post urls
I believe ...
mr. electronics said:
Running JB 4.1.2 was able to connect to 14 sats / found 20...Best I've seen so far.
Click to expand...
Click to collapse
Service Manual
Surprise? not for me. anyone who had been following important threads should know that it was discovered with proof long ago (march 2013). - OP was made in 2012
nice! i didn't know this

GNSS: Gaiileo?, dual frequency?

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.

Dual GPS Functionality Disable After Updated to Android 10/MIUI 11

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.

No Region under language and region settings

hi... issue as the titles said... im on global c28... ever since i dont have region... but i remember correctly that when i first open the phone... it ask me the region and it said i can change it later... but cannot find it under language and region settings... only language and updates... thanks...
hi you should have this normally. but hey the problem that you have me I have it on the game center application or options I miss! is that how it really pisses me off in the long run because update happening but it looks like all because my problems are never resolved like the Double Wifi that I still don't have !!!
ste27.jah said:
hi you should have this normally. but hey the problem that you have me I have it on the game center application or options I miss! is that how it really pisses me off in the long run because update happening but it looks like all because my problems are never resolved like the Double Wifi that I still don't have !!!
Click to expand...
Click to collapse
What is the problem with double wifi, it should be automatically activated, isn't that correct? I thought that it always uses both 2.4 and 5GHz bands when you connect to the supported network.
adsubzero said:
What is the problem with double wifi, it should be automatically activated, isn't that correct? I thought that it always uses both 2.4 and 5GHz bands when you connect to the supported network.
Click to expand...
Click to collapse
I would have liked you to tell the truth, but not for impossible I have none of these parameters! and I am not the only one a topic already exists on this subject. with some it works and others don't!however we do have the same phone with the European version. I do not know is no response Realme on this subject is it frankly began to annoy me. just like the famous "4D"Vibration which must be activated in the Games is quite the same impossible is that it does not matter the games! I really regret this purchase for having been misled on the goods
Try to factory reset the phone. If this doesn't work, reinstall the OTA through ozip method.
ste27.jah said:
I would have liked you to tell the truth, but not for impossible I have none of these parameters! and I am not the only one a topic already exists on this subject. with some it works and others don't!however we do have the same phone with the European version. I do not know is no response Realme on this subject is it frankly began to annoy me. just like the famous "4D"Vibration which must be activated in the Games is quite the same impossible is that it does not matter the games! I really regret this purchase for having been misled on the goods
Click to expand...
Click to collapse
I can't say about the 4d vibration because I never tried it, though it should be game dependent, and there's probably only a few games supported. However for the dual wifi there shouldn't be any parameters or options I think. When there's a dual band network you just connect to it normally and the phone should use both bands automatically.
I don't think 4d vibration is a dealer braker or a deal maker, just a gimmick anyway. Phone is great for me
adsubzero said:
I can't say about the 4d vibration because I never tried it, though it should be game dependent, and there's probably only a few games supported. However for the dual wifi there shouldn't be any parameters or options I think. When there's a dual band network you just connect to it normally and the phone should use both bands automatically.
I don't think 4d vibration is a dealer braker or a deal maker, just a gimmick anyway. Phone is great for me
Click to expand...
Click to collapse
Dual wifi doesn't refer to the use of 2.4 and 5 Ghz bands simultaneously, but to use two networks simultaneously to increase the speed. It can be enabled from wifi settings. (However I think is useless, because most people have only one wifi network. I think the dual use of wifi plus mobile data is useful, like what Samsung did some years ago, IDK if latest phones still have this feature)
whoa? why it became wifi issue with post? anyone have the same issue as mine? region?
xsam123 said:
Dual wifi doesn't refer to the use of 2.4 and 5 Ghz bands simultaneously, but to use two networks simultaneously to increase the speed. It can be enabled from wifi settings. (However I think is useless, because most people have only one wifi network. I think the dual use of wifi plus mobile data is useful, like what Samsung did some years ago, IDK if latest phones still have this feature)
Click to expand...
Click to collapse
Ah yes I just looked into it some more, it turns out both of us are correct. It means either connecting to both bands or two different networks.
---------- Post added at 07:56 PM ---------- Previous post was at 07:55 PM ----------
TheJoker71 said:
whoa? why it became wifi issue with post? anyone have the same issue as mine? region?
Click to expand...
Click to collapse
Sorry for hijacking the thread. Have you tried searching for "region" keyword in settings? The first result is the option for changing the region for me.
its okay... even typing region in settings no result...

Question [BUG?] Bluetooth causing Wi-Fi slowdown

Hi everybody.
I just noticed a strange bug which I verified and reproduced on my S10, S20 and S21 : enabling bluetooth (connected or not) reduces by more than half the speed of Wi-Fi.
Steps to reproduce :
1. Turn off bluetooth
2. Turn on wifi and connect to the router
3. Make a google speed test twice
4. Immediately turn on bluetooth
5. Make a google speed test twice
6. Compare speed tests!
Works for me every time. And you ?
Edit :
Here's a screen recorded video illustrating the potential bug :
Yes definitely a speed drop with Bluetooth on, tried using Google speed test and speed test app.
adamlee2012 said:
I got 400mbps with Bluetooth on and 330mbps with Bluetooth off.
Click to expand...
Click to collapse
Thanks for the fast answer. I hope to see clearer with more replies ...
alienex said:
Yes definitely a speed drop with Bluetooth on, tried using Google speed test and speed test app.
Click to expand...
Click to collapse
Can it be reproduced every time ? With the same speed drop ratio ?
Thanks a lot
I'm not convinced, had 380mbps for 5 tests then switched on Bluetooth, I initially had 280mbps but then subsequent tests around 380-400mbps
This issue is only with phone having Snapdragon Chipsets.
mvikrant97 said:
This issue is only with phone having Snapdragon Chipsets.
Click to expand...
Click to collapse
Are you having the issue ? My phones are Exynos models.
DaReDeViL said:
Are you having the issue ? My phones are Exynos models.
Click to expand...
Click to collapse
S21+ Exynos locked with latest EU OXM (VDF CSC) Android 12, no change in speed. Tested with WiFi 6 BT Off 256.8, BT On 258.4.
DaReDeViL said:
Hi everybody.
I just noticed a strange bug which I verified and reproduced on my S10, S20 and S21 : enabling bluetooth (connected or not) reduces by more than half the speed of Wi-Fi.
Steps to reproduce :
1. Turn off bluetooth
2. Turn on wifi and connect to the router
3. Make a google speed test twice
4. Immediately turn on bluetooth
5. Make a google speed test twice
6. Compare speed tests!
Works for me every time. And you ?
Click to expand...
Click to collapse
I just tested using Speedtest. I only have 200mbps from my SP. Bluetooth off it went to 220mbps very fast. Bluetooth on still peaked at 220mbps but it took a few more seconds to get there. S998U1 UI4 OTA in Florida. Just one test. Snapdragon.
Edit 2:
Second test identical to test 1.
whbell said:
I just tested using Speedtest. I only have 200mbps from my SP. Bluetooth off it went to 220mbps very fast. Bluetooth on still peaked at 220mbps but it took a few more seconds to get there. S998U1 UI4 OTA in Florida. Just one test. Snapdragon.
Edit 2:
Second test identical to test 1.
Click to expand...
Click to collapse
That's interesting. I now gave more time to the test with Bluetooth on : it SOMETIMES gets to the max speed but slowly compared to Bluetooth off.
There's definitely something happening when using Wi-Fi with Bluetooth on.
I just tested with a Poco F3 and there's strictly no difference in Wi-Fi performance but all my samsung devices are impacted. I do have some older ones to be tested too ...
Here's a screen recorded video illustrating the potential bug :
DaReDeViL said:
Are you having the issue ? My phones are Exynos models.
Click to expand...
Click to collapse
Morever even Windows based laptops having a Qualcomm Wifi and Bluetooth module has same issue. While Android and Windows software and hardware are way apart but as far the issue is concerned it is related to drivers for Windows but again only with Qualcomm Manufactured Wifi and Bluetooth Module.
mvikrant97 said:
Morever even Windows based laptops having a Qualcomm Wifi and Bluetooth module has same issue. While Android and Windows software and hardware are way apart but as far the issue is concerned it is related to drivers for Windows but again only with Qualcomm Manufactured Wifi and Bluetooth Module.
Click to expand...
Click to collapse
Oh I should verify this on my laptop. Thanks for the information.
In the meantime, I just bought a Poco F3 (what a great device btw) and the bug can't be reproduced on it whatever I do !
These are maybe the last days of my S21 ...

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