Bluetooth Strength/Distance - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

I have noticed at the gym, using the exact same BT headphones as on my previous POCO the Bluetooth signal doesn't go as far on my K20Pro. With POCO I can go like 10m and the music stays playing, even behind a wall. K20pro start disconnecting at a smaller distance.
Im running evox custom rom now is there something I can change in developer options to make the signal stronger?

Related

a2dp stutters when I move the diamond

ok, so I just noticed something really annoying. I just came back from my daily running and it was the first time I used the diamond with my stereo bluetooth philips headset for this instead of the ipod.
as soon as I started running and the diamond jumped up and down in my pocket the music started stuttering like crazy. like the old days when I had a cd player without shock memory
first I thought this had something to do with sensor lock running, but I uninstalled it and the problem is still there. I now tried to reproduce the stuttering when at home and it seems to be connected to the distance. when I hold the phone close to the bluetooth headset and start shaking the phone like crazy nothing happens. as soon as I move it down to my pockets it begins stuttering when I rapidly move the phone around.
I tried searching the forums but couldnt really find anything stutter related when it comes to motion. I'm not sure if this has something to do with the motion sensor or with my headphones weak bluetooth receiver...
any suggestions are welcome here, I'm a bit baffled by this whole thing.
greets,
4saken
Stuttering?
Sounds more likely to be your headphones. I use Motorola S9 bluetooth headphones and have no issue with the sound jumping, skipping or anything... unless I leave my Diamond in the house and walk down the garden! I'm not sure whether all Diamonds have the same bluetooth hardware. If some incarnations have different hardware, this might be the issue.
Can you 'borrow' a mates' headphones to see if you get the same result?
Perhaps one of the techno wizards here can let us know if there are any differences in the bluetooth hardware between various Diamond devices?
thanks for your answer. I'll try to find someone with another bluetooth headset.
I hope it's not hardware related. can you tell me what radio version and rom you got running? maybe there's a difference here.
sounds like its a problem with the bluetooth range, if you shake the phone when its near the headset it doesnt make trouble but when its more far away you get problems, so i would think it get out of transmission range.
no problem here with bluetooth on shaking
greets
what bluetooth headset do you have? the weird thing is, if I lay the phone flat on a table I can walk about 10 meters before I get any stuttering. why would shaking the phone reduce that range to about 1 meter?! that doesnt make any sense..
Lay your phone on the table walk around and shake yourself/headset and u will see it comes from ur headset.
Mine is plantronics dunno the specs can look tomorow as there is nothing on the headset.
greets
EDIT: if not i think the bloodtooth has a loose connection ?! But that shouldnt be on that onebrick device

Nexus 6 Bluetooth Stuttering

Hi everyone, main issue plaguing my N6 experience here... upgraded not too long ago from a G3.
There seems to be bluetooth stuttering with this phone. It is something that I haven't run into in any other phone (HTC One M7, M8, LG G3). I'm connecting to the car stereo and it connects calls okay, but when I connect it to a friend's car stereo (Sony stereo.. don't know the model #) or any of my bluetooth headsets (Sony MDR10BT primarily) I will get stuttering when trying to listen to music.
The main thing I noticed is the stuttering only happens when I have something in front of the device. I put it in my pocket and the stuttering starts. I wave my arm in front of it (in between the headset and the device), it will stutter.
I've looked around for solutions on this issue, no solution in sight. I think it has to do with the radio not getting enough power, this was never an issue with any of the other phones.
FAQ:
-I'm rooted, running stock kernel & Chroma 2015-06-05 build. Note this happens on Euphoria ROM as well.
-No, I'm not using a smartwatch
-This happens when the WiFi is both on and off
-This happens when screen rotation is set to automatic or portrait only
-Bluetooth is not being logged
-My jeans aren't sewn with any radio blocking materials
This has been driving me crazy. I noticed it seems to be much better with Developer M.
It only happens with my bluetooth headphones when I'm walking, so your description makes sense. It's the only time I really have my hands on my phone when using bluetooth.
When I'm using it for car audio, I have it in a dock. When I'm using a bluetooth speaker, it's on a table or desk.
I'll have to try some stuff out and see if it makes a difference, but as I said, I just switched to M and it seems to help.
Maybe hardware issue
I am experiencing the same behavior with a non rooted stock up to date Android on the nexus 6. It will sometimes stutter to the point where it just stops working and I have to restart the phone for Bluetooth to be usable again.

Crazy, useless Bluetooth on new device?

I just got a 128 GB OnePlus 3T a few days ago to replace a dead Nexus 6P. So far I'm very happy with the phone (performance, screen, etc, camera is almost as good, blah blah) except one thing.
My bluetooth is completely nuts. Sometimes I will turn it on via Settings or Quick Settings and it will not turn on at all (the slider moves to the right but stays greyed out, then moves back to the left). Other times I am "luckier" and it switches on and begins scanning, and I can see devices in the area. I pair to a speaker dock via NFC or my wireless headphones via tapping on them and the connection is established, you can hear the speakers go "hey something connected".
So that's all fine. But then you start playing music. About 40-60 seconds in it will skip, crackle, or pause the music entirely. Sometimes the device makes its disconnect noise immediately followed by its reconnect noise. At this point pressing 'play' again starts the cycle over again, usually, or sometimes it will just refuse to "talk to" anything any more until you reboot the phone.
The phone came with OOS 3.5.4 out of the box and immediately got an OTA to 4.1.1. I was suspect about the upgrade procedure and sighed and did a full reset and re-flashed the full 4.1.1 image using adb sideload, logged back in, did the barest of minimum updates to the Google apps to make it stop complaining, and then tried music again. More skipping and pausing. My headphones have a volume up/down key on them, pressing that pretty much immediately results in a disconnect.
It's like the AVRCP (command) bluetooth protocol is "fighting" the A2DP audio stream protocol? It doesn't make any sense. This would also explain why my car audio has NEVER worked, because my head unit uses AVRCP to read track names and my headphones and speaker dock don't have any sort of screen to speak of.
I want to love this phone and don't want to pay double for a similar Pixel, but I might just have to return it if it's effectively useless at one of the main things I have a phone for! :crying:
Hmmm...My Bluetooth connection never have that issues. I used Bluetooth headphones and my car head unit. Running oos 4.1.1 as well.
Try dirty flashing your ROM, there might be something wrong with the drivers. Bluetooth commands (volume, pause, voice assistant, skip, etc.) work find on my headset, I don't believe its a compatibility issue.
If that fails, it might be a hardware defect?
I don't have problems with Bluetooth im using sony wireless earphones everyday. Try reformat the phone
Hi!
Android Nougat has heavy issues regarding bluetooth connectivity. If you Google it you will see...
I have the very same Problems like you with my car radio...
This must be finally adressed by Google.
Assassin1985 said:
Hi!
Android Nougat has heavy issues regarding bluetooth connectivity. If you Google it you will see...
I have the very same Problems like you with my car radio...
This must be finally adressed by Google.
Click to expand...
Click to collapse
Huh? Must be an compatability issue between the BT device and your phone. I have 6 active BT devices I use all the time with this phone and my tablet. Car stereo, fitnessband, speakers and inear plugs.
Only issue I sometimes face is the 'stuck in connecting to last used device' where BT needs to be turned off and on again. Wouldn't call it a heavy issue.
bluetooth perfect here. better than my lg g3 that i had previous.
So, more info. If 2.4 GHz WiFi is active in ANY WAY, the bluetooth goes nuts. AVRCP (bidirectional commands) make it worse. Putting the phone in airplane mode to disable the "ambient" wifi location scanning and such, then turning bluetooth on manually and playing some downloaded music, seems to work fine. Switch the WiFi on though (even though my access point is 5 GHz), bam down the toilet. Ugh.
I did a complete reset and flashed OOS 4.1.1 from adb, no improvement. I'm trying the Open Beta 4 right now but I doubt it will be any better.
Did you turn off the scanning feature?
Happens to me like once every 3 days. I usually reboot by then
evilspoons said:
I just got a 128 GB OnePlus 3T a few days ago to replace a dead Nexus 6P. So far I'm very happy with the phone (performance, screen, etc, camera is almost as good, blah blah) except one thing.
My bluetooth is completely nuts. Sometimes I will turn it on via Settings or Quick Settings and it will not turn on at all (the slider moves to the right but stays greyed out, then moves back to the left). Other times I am "luckier" and it switches on and begins scanning, and I can see devices in the area. I pair to a speaker dock via NFC or my wireless headphones via tapping on them and the connection is established, you can hear the speakers go "hey something connected".
So that's all fine. But then you start playing music. About 40-60 seconds in it will skip, crackle, or pause the music entirely. Sometimes the device makes its disconnect noise immediately followed by its reconnect noise. At this point pressing 'play' again starts the cycle over again, usually, or sometimes it will just refuse to "talk to" anything any more until you reboot the phone.
The phone came with OOS 3.5.4 out of the box and immediately got an OTA to 4.1.1. I was suspect about the upgrade procedure and sighed and did a full reset and re-flashed the full 4.1.1 image using adb sideload, logged back in, did the barest of minimum updates to the Google apps to make it stop complaining, and then tried music again. More skipping and pausing. My headphones have a volume up/down key on them, pressing that pretty much immediately results in a disconnect.
It's like the AVRCP (command) bluetooth protocol is "fighting" the A2DP audio stream protocol? It doesn't make any sense. This would also explain why my car audio has NEVER worked, because my head unit uses AVRCP to read track names and my headphones and speaker dock don't have any sort of screen to speak of.
I want to love this phone and don't want to pay double for a similar Pixel, but I might just have to return it if it's effectively useless at one of the main things I have a phone for! :crying:
Click to expand...
Click to collapse
Hi, I have the exact same phone and been having stuttering performance with Bluetooth and Sony MDR-X330BT and worked fine with the 1+ 3. I decided to tell the phone to forget the headphones and start afresh; big mistake headphones kept refusing to pair. I noticed they have the NFC symbol on one of the earpads so I enabled NFC and used app I had downloaded a while back, 'Tap-and-Pair' that did not work either. I did a search today and found a great app that worked - 'NFC Easy Connect' from the Play Store. Now all I need is stable connection from car system which appeared to be tied in with length of screen life before going to sleep but think it may be faulty Twingo as been on the car forum and found others with similar issues but different smartphone to the 1+ 3T. Hope this helps.

White noise/hissing in the background while listening with headphones.

Hi, so a few days ago white noise appeared while listening to for example music. Headphones aren't faulty, checked them on my computer and other phone, their are good. But the thing is, if I make phone detect my main headphones without mic they work perfectly fine but in-line controls don't work. It pretty much more noticible in lower volumes, in higher volumes you can't hear it pretty much, only when music is like fading in the end. You would say just listen to higher volumes, but I'm a type of person who notices a thing and can't unotice it.
Right now I'm on MIUI 7.9.22 (MIUI9)
This seems like a common issue with Xiaomi phones, be it the Redmi Note 3, Redmi Note 4, now the Mi 5 and the Mi A1.
What on earth is Xiaomi doing to the headphone jack?
I hear rooting and changing some stuff can fix it: https://forum.xda-developers.com/redmi-note-3/how-to/fix-crackling-static-noise-headphones-t3453004
I fixed the problem just by flashing back to MIUI 8.

Headphones volume is extremely low

I have a big problem with the Mi A2 - it's really quiet using headphones (through the stock adapter). It's not headphones problem. Now, the question is, is that because of the software or maybe because of the crappy adapter? I need the people from EU country to speak here because maybe it us because of the stupid EU law.
Noticed this too. You get a slight improvement with viperfx and master gain /xloud , but that's all I found out.
Now, even if I am a pretty solid fan of Jack + high end headphones, we are in 2018, moving to BT headphones with Bt 5.0 is the way to go. On this matter. Having aptx advertised and not able to use it without build.prop tweak is a more serious matter IMHO ??
Still Loving my mia2 everyday more tho. This thing is getting faster everyday and having the governor set to ondemand + touch boost disabled make it fast as hell and crazy battery performance (getting solid 5-6 hours SOT)
Grüß,
H
Same problem.... headphones were pretty loud on my old Mi4... now its really low. :/
What do you mean with "touch list disabled"?
Thanks!
bixirulo said:
What do you mean with "touch list disabled"?
Thanks!
Click to expand...
Click to collapse
"touch boost disabled" *edited
dodjob said:
Noticed this too. You get a slight improvement with viperfx and master gain /xloud , but that's all I found out.
Now, even if I am a pretty solid fan of Jack + high end headphones, we are in 2018, moving to BT headphones with Bt 5.0 is the way to go. On this matter. Having aptx advertised and not able to use it without build.prop tweak is a more serious matter IMHO
Still Loving my mia2 everyday more tho. This thing is getting faster everyday and having the governor set to ondemand + touch boost disabled make it fast as hell and crazy battery performance (getting solid 5-6 hours SOT)
Grüß,
H
Click to expand...
Click to collapse
I love my Mi A2 too but I swear I can't listen to the music because the volume is so damn low. While you are rooted, could you send this file - system/etc/mixer_paths_tasha.xml and this system/etc/mixer_paths.xml? I am sure low volume can be fixed by editing these files.
They can be stored in this place too - vendor/etc
dodjob said:
"touch boost disabled" *edited
Click to expand...
Click to collapse
Where is this option?
Solution?
This problem is something I struggle with too. Might it be the usb type c adapter to aux which is the problem? Can anyone try with a different adapter and report back? I am using Xiaomi mi in ear pro headphones. I need to use max volume to have a volume which I consider medium.
Gengasi said:
This problem is something I struggle with too. Might it be the usb type c adapter to aux which is the problem? Can anyone try with a different adapter and report back? I am using Xiaomi mi in ear pro headphones. I need to use max volume to have a volume which I consider medium.
Click to expand...
Click to collapse
I have Xiaomi Pro too (HD). Sound is so low... I have bought xDuoo X3 II and will use it as a Bluetooth receiver.
Mi A2 Bluetooth Audio volume low too?
pianistaPL said:
I have a big problem with the Mi A2 - it's really quiet using headphones (through the stock adapter). It's not headphones problem. Now, the question is, is that because of the software or maybe because of the crappy adapter? I need the people from EU country to speak here because maybe it us because of the stupid EU law.
Click to expand...
Click to collapse
I just got my Mi A2 and the audio volume seems very low when Bluetooth paired to my cars stereo. Maybe halve the volume of my old LG phone. Very weird since the audio volume thru the Mi A2's built-in speaker is VERY loud.
Stock dongle's output is slow. Get some other 3rd party and sound will get louder. I have bought and its sound is quite louder than stock's one.
Sent from my Mi A2 using Tapatalk
I just got google's newest dongle, it is good. The volume, while not overwhelming, is certainly loud enough with music. Dynamic Range seems quite improved also. I figured for 12 bucks, not much to lose. But turned out improvement for sure.
Mi A2 audio quality
I am currently using the stock dongle and mi piston fresh earphone on my Mi A2 for music. The audio quality is really poor. There's noise and audio is muddy. Is anyone experiencing this and is there a way to improve the audio quality?
I used the headphones of the leeco le Max 2 type c and it sounds wonderful ... but when using the adapter for my headphones Xiaomi sounds very slowly
MIA2 Bluetooth Audio output is extremely low? And solutions
yes I got the solution
step One connect BT device
and tap on Bluetooth icon long press on notification bar
go to more settings
and which device is connected through Bluetooth there is settings icon like button, tap on button uncheck phone off and contact share Except Media Audio.
Bluetooth audio is quality is improved alot.
---------- Post added at 05:56 AM ---------- Previous post was at 05:53 AM ----------
yes I got the solution
step One connect BT device
and tap on Bluetooth icon long press on notification bar
go to more settings
and which device is connected through Bluetooth.
there is settings icon like button, tap on button
Uncheck phone off and contact share Exept Media Audio.
Bluetooth-enabled audio is quality is improved alot.
pianistaPL said:
I have a big problem with the Mi A2 - it's really quiet using headphones (through the stock adapter). It's not headphones problem. Now, the question is, is that because of the software or maybe because of the crappy adapter? I need the people from EU country to speak here because maybe it us because of the stupid EU law.
Click to expand...
Click to collapse
I'm having the same problem...
Maby its the adapter cz bluetooth headphones sound good for me :/
Headphone volume is perfect witch Xiaomi headphones ( like Piston Hybrid), with any other volume is half of the normal...Why ? I do not know why but...
Ribin_vox said:
yes I got the solution
step One connect BT device
and tap on Bluetooth icon long press on notification bar
go to more settings
and which device is connected through Bluetooth there is settings icon like button, tap on button uncheck phone off and contact share Except Media Audio.
Bluetooth audio is quality is improved alot.
Click to expand...
Click to collapse
This doesn't help at all. You'll still end up being stuck with SBC or AAC codec.
I recently converted my phone to Mi 6x and flashed AospExtended v5.8 Rom. Now LDAC is working perfectly with my sony wh1000xm2 headphones and volume output from stock dongle has increased to normal levels. So finally I'm able to use my MI A2 for listening music and I don't need to carry my old Moto X play with me just to use spotify.
I don't think problem is low quality of stock dongle. After all it is just simple adapter and it shouldn't have any or very little difference on audio quality (audiophiles may have different opinions). And I also had very low volume via bluetooth on stock rom.
I'd really love to use the stock rom because the stock camera is much better for day to day use than these buggy gcam ports, but low audio output makes it impossible. Mi a2 is great phone with ****ty firmware and I don't have any high hopes for Xiaomi to fix these bugs. Maybe in the future when development really kicks in we got rom wich is capable for music and photos.
pianistaPL said:
I have a big problem with the Mi A2 - it's really quiet using headphones (through the stock adapter). It's not headphones problem. Now, the question is, is that because of the software or maybe because of the crappy adapter? I need the people from EU country to speak here because maybe it us because of the stupid EU law.
Click to expand...
Click to collapse
So can someone confirm if this is a problem in the type-c to 3.5mm adapter? If i buy a usb-c earphone or a third party adapter the audio will be loud?
I'm really waiting for someone at XDA to comment on :
KZ Type-C Digital Decoding Cable:
https://www.gearbest.com/earphones/pp_009772302190.html
or
Odyssey Type-C to 3.5mm DAC dongle:
https://www.veclan.com/engappliance_sel_one?eng_ApplianceVo.eac_id=32
Ref : https://www.head-fi.org/threads/ve-odyssey-discussions-and-impressions-thread.886989/
I tried earlier here :
https://forum.xda-developers.com/mi-a2/accessories/type-c-audio-digital-decoding-ofc-cable-t3850980

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