Develop Bugs

no sound after bluetooth unpairing

Hi, I have been searching and can't seem to find anything on this. My wife's and my epics pair, and work, great with with our car stereos (clarion). but, when we get out of the car, and the phone unpairs, we have no more system sounds. we miss calls and texts because we never hear them. the sounds now only come out the ear piece. Only a reset corrects it and then we hear sounds from specker again. Of coarse until we get in the car, and it all starts over again.
any ideas? I'm stumped.
thanks!

have you tried turning bluetooth off entirely when u leave the car?
also are you using any applications to send media with bluetooth such as BTmono?

I have the same problem -- as does my wife. I'm using a Motorola BT in the car, but it seems to be a problem with any BT connection as she primarily connects to our BT phone connection in the house. I saw this problem mentioned in a couple other threads, but no real solutions other than things like turning off BT on the phone before disconnecting, etc. Frankly, that's a hassle and I never remember to do it. I was hoping the latest version of Syndicate ROM might fix it, but just had it happen again this morning. So, I can confirm it's a problem on both Froyo stock and Syndicate ROMS. At least it seems like rebooting is a bit faster on Syndicate, so that's my solution for now as soon as I realize sounds aren't coming through. Just gotta remember to check before I miss a call!
Sent using Tapatalk.

thanks for the replies. I am not using anything that starts to stream to the car stereo. Music player use to, but I removed it. I did notice today that the specker sound loss only happens if i make/receive a call. Today I drove to store and while in store away from car sound was fine. got back to car, called wife, and then when I was at home sound was gone. I will try to toggle off BT before phone is unpaired. what a pain.

Wouldn't ya know I found a thread about this after I post this.
http://forum.xda-developers.com/showthread.php?t=1029198

This post has worked for me: thanks mattallica76. I had to be in car paired to do this.
http://forum.xda-developers.com/showpost.php?p=13102385&postcount=31
This problem is a bug that exists while using Bluetooth on a device for both ad2p and phone calls. The only workaround (until Sammy or one of our great devs comes up with a fix) is to use the BT device for one or the other. This will prevent the audio from being routed to the phones earpiece after BT disconnects. To do this, go into the phones BT settings. Then long press the device that you are having trouble with. Next uncheck "Media Audio" or "Phone Audio", depending on which purpose you want for the device.

[Q] bluetooth audio issues - intermittent

Hey everyone. Gotta say, i love this phone its the android device i always wanted. However, im having issues with my car bluetooth which i have not experienced before... namely, that random phonecalls sound completely digitized.
Ive come from an htc desire and htc sensation on the same car without issue and am worried i got a bad BT antenna-or its software...
Anyone out there experiencing the same thing? Any advice (other than buying a new car)?

I am having the same issues on a Verizon Galaxy Nexus V4.02. If I turn bluetooth off mid-call the earpiece sounds fine. The static only happens during voice calls, streaming A2DP sounds fine. There are bluetooth improvements listed in the 4.03 changelog, hopefully this will be resolved.

I had some problems with my BT speaker phone. I turned off the key press sounds and the screen off sounds and that pretty much fixed it.

I have an off topic question for you guys that use bluetooth streaming. Can start the car and press play from the HU to start music? I can with my old D2, but not my TB. I have to actually start the music player on the thunderbolt, then I can control it from my HU. I would like to upgrade, but I don't see a huge advantage in upgrading if I still can't start my music without having to actually take the phone out of my pocket. (Yes, I know it's stupid, but I'm lazy.)

I have this same issue in one of my cars. I ran a number of tests and the issue only occurs on my vehicle when the phone is connected to both for telephony and a2dp music. The static occurs whether or not a2dp is actually being used to stream music or not. This particular vehicle has two separate devices for music and telephony. If I unpair or disconnect the music device, then telephony works without the audio distortion. As soon as I reconnect the music device, the static is re-introduced.
v0yeur said:
Hey everyone. Gotta say, i love this phone its the android device i always wanted. However, im having issues with my car bluetooth which i have not experienced before... namely, that random phonecalls sound completely digitized.
Ive come from an htc desire and htc sensation on the same car without issue and am worried i got a bad BT antenna-or its software...
Anyone out there experiencing the same thing? Any advice (other than buying a new car)?
Click to expand...
Click to collapse

I am experiencing this issue as well and have not been able to resolve it. I've tried disabling the touch sounds, screen off sounds, etc. but to no avail.
It pretty much makes handsfree unusable while driving. What have you guys done in the meantime? Have you been able to resolve the issue yet?
Here's my specific details:
Phone: Verizion LTE Galaxy Nexus v4.02 stock/unrooted
Handsfree Car System (phone audio): Stock 2007 Audi A4
Separate A2DP Module (media audio): Dension Gateway Five connected to factory Stereo
All of my previous phones (Thunderbolt, Droid X, Incredible, OG Droid) have fully supported this setup with no issues whatsoever.
On a sidenote, my A2DP streaming is also unreliable. It first has trouble connecting to the device. If/when it does, audio constantly cuts out when streaming Pandora, Slacker Radio, Google Music... pretty much any streaming over network connection. I have not tried locally stored music yet as I don't have any currently stored on my device. Are you guys experiencing this A2DP issue as well?
I wonder how widespread this is and if it warrants opening an official issue with Google.

I used to have a Blackberry Torch, and I have a Ford Mustang. When I would connect the BT to it, if the Wifi was on, it would "interfere" with the signal. Turning wifi off, fixed the issue. This was a widely known issue with the Torch. Granted that shouldn't have to be a fix, but can any of you verify whether your wifi is on? (regardless of if its connected to anything or not). I'm wondering if the Nexus is using the same BT/WIFI chip that the Torch used.

radi0chik said:
I used to have a Blackberry Torch, and I have a Ford Mustang. When I would connect the BT to it, if the Wifi was on, it would "interfere" with the signal. Turning wifi off, fixed the issue. This was a widely known issue with the Torch. Granted that shouldn't have to be a fix, but can any of you verify whether your wifi is on? (regardless of if its connected to anything or not). I'm wondering if the Nexus is using the same BT/WIFI chip that the Torch used.
Click to expand...
Click to collapse
I appreciate the suggestion but unfortunately, I have the issue even if WiFi is off (I never use WiFi).
I'm going to try and toggle a few of the sound and haptic feedback settings a little more to see if it's pertinent to a certain on/off configuration. It's a shot in the dark but I'll try anything at this point.

ok it was worth a shot. Maybe on a whim turn off 3g/data so basically its airplane mode except BT is on? Just to eliminate any RF interference. Other than that I dont know

Spent quite a bit of time in the car today to try and pinpoint a cause and I have had no luck.
Phone audio will sound great and then all of the sudden turn digitized and distorted for a random period of time, then revert back to sounding great. One thing to note is that the distortion is both ways - the person I'm talking to also hears it when I speak and cannot understand what I'm saying. It's very frustrating not being able to use this feature.
I am on my 2nd replacement phone and ALL of them have had this issue (returned two others to VZW due to this issue and the speaker clicking issue). I am still wondering if it is software/OS releated or if it's due to poor hardware.

Quick Update (kind of):
I messed around with more settings last night. I am happy to report that after I disabled NFC last night, I made several handsfree calls in my car with perfect clarity and no issues. Also, A2DP streaming Pandora worked flawlessly! I was happy that I thought I pinpointed the issue - NFC interference.
BUT this morning, I made a handfree call and it was immediately distorted. Frownie face! A2DP Streaming Pandora still worked great. I am now trying to determine if my success last night was a fluke or if something is different with the phone this morning. The only difference from last night to this morning, that I have been able to identify so far, is I now have the extended battery in the phone. Last night's success had the standard battery. I'll switch them back at lunch and re-test.

Stowegy said:
Quick Update (kind of):
I messed around with more settings last night. I am happy to report that after I disabled NFC last night, I made several handsfree calls in my car with perfect clarity and no issues. Also, A2DP streaming Pandora worked flawlessly! I was happy that I thought I pinpointed the issue - NFC interference.
BUT this morning, I made a handfree call and it was immediately distorted. Frownie face! A2DP Streaming Pandora still worked great. I am now trying to determine if my success last night was a fluke or if something is different with the phone this morning. The only difference from last night to this morning, that I have been able to identify so far, is I now have the extended battery in the phone. Last night's success had the standard battery. I'll switch them back at lunch and re-test.
Click to expand...
Click to collapse
I've got the same issue. Even with NFC disabled. Makes listening to Pandora in the car unbearable. I've gone through the same steps as you, but hasn't exchanged the phone yet. I've had previous Androids and it was a hit/miss with the distortion, but with an iPhone or BB never had this issue. Go figure.

thanks to all the replies, will update to 4.0.3 and try out some more options.
- unplugging my music dongle had no effect on call quality
- NFC on or off had no effect
I also find that the music adapter never auto-connects and needs me to go in to the BT settings page and manually select it.
thanks all.

Hello again. So I have an update that adds to the flakiness ...
Updated to the Bugless Beast ROM and Franco's kernel. My intent was to completely reset the phone and hopefully get a new Bluetooth stack in the process.
Initially everything paired OK, but after a while my audio randomly disconnects after about 20minutes and then reconnects depending on its mood.
My phone connection is more controllable now: if the BT is enabled on my phone when I turn on the car, the sound quality is entirely digitized and unusable. If I turn on the car and THEN enable my phone, the sound quality is flawless every time.
Still not ideal, but manageable. For the music audio part, I lay the blame entirely on the Audi Music Interface BT adapter: the thing is crap and always in pair mode even with the car turned off! The telephone BT in the car head unit has seen several phones pair with it without any issues (I do mobile development so I get to play with many phones) so in that case, I can't blame anything but the Nexus.
I really hope someone at Google or Samsung reads these threads since it would be tough to troubleshoot, but there's no doubt an issue exists with general BT compatibility.
Sent from my Galaxy Nexus using xda premium

Anyone have an update on this issue? Does anyone know of a ROM with a different Bluetooth stack than AOKP? I love everything else about AOKP. I have had the same garbled bluetooth audio from stock - 4.03 with franco and faux kernels with the same result. I had similar problems with Cyanogen 7 ROM I was using on my Incredible the week before I bought the Nexus.

Update - I experimented with a couple of additional devices, and the multiple connections problem with my Nexus is limited to A2DP only devices.
I am now using a Garmin BlueTrip with "phone audio" deselected in bluetooth options. As long as the additional bluetooth device is handsfree profile capable, the A2DP functions perfectly, calls are clear, and the device reconnects after a power cycle consistently. I'm glad this appears to be a software issue and not something we will have to live with for the life of the phone. I'm sure a future update will correct this issue.

I'm also having a problem with Bluetooth calls sounding very digitized and/or choppy. It is bad enough that it can be extremely difficult to make out what the caller is saying. A2DP, on the other hand, has performed pretty flawlessly and the device consistently reconnects each time I get in the car (although it can take up to 30 seconds or so).
I'll have to do a little experimenting with some of the settings mentioned in this thread to see if they have any affect.
On a related note, I feel like sometimes calls made/recieved on the handset can sound digitized as well (although not nearly as bad as over bluetooth). Has anyone else experienced this?
My hardware is:
Verizon GNex (4.0.2)
Parrot MKi9000

Gap & silent during listen music

-when listen music either on HTC music widget or PowerAmp
- got Gap and silent when using Bluetooth headset
- works fine if direct connect to the ONE X
any idea and fix ???

I've yet to see if this works for bluetooth but had a look at the ROMeOS rom and saw this in the build.prop as monx seams to have fixed the stutter: lpa.decode=true
I've set this in my build.prop and will try through the car bluetooth tomorrow.
To edit build.prop in the system folder you will need root access

thanks , buddy , let me know the result.

Unfortunately made no difference for me, will keep digging though as this is annoying when I have a 40 min commute to work each morning and again back.
Anyone have any idea's?
Edit: this doesn't just happen on the beats setting, turning it off makes no difference.

Anyone have any ideas on any fixes yet?
Sent from my HTC One X using xda premium

Have the same stutter issue even after 1.28 update connected with my bluetooth MW600.
Seems the problem is device switching to power conserve core. When i play music in background while running GPS in foreground, iam not getting the stutter.

skr_xd said:
Have the same stutter issue even after 1.28 update connected with my bluetooth MW600.
Seems the problem is device switching to power conserve core. When i play music in background while running GPS in foreground, iam not getting the stutter.
Click to expand...
Click to collapse
That seams to be the case, having just sat in my car for 15 mins, 5 mins just music and 10 mins with music and maps and no glitches with maps.

skr_xd said:
Have the same stutter issue even after 1.28 update connected with my bluetooth MW600.
Seems the problem is device switching to power conserve core. When i play music in background while running GPS in foreground, iam not getting the stutter.
Click to expand...
Click to collapse
I have the same bluetooth headset, the MW600 and the stutter makes it unusable. I'm on 1.29 stock now and I got to the point that I don't use my MW600 for listening to music anymore, but just wired Sennheisers.
Have you found a solution yet?

wph said:
I have the same bluetooth headset, the MW600 and the stutter makes it unusable. I'm on 1.29 stock now and I got to the point that I don't use my MW600 for listening to music anymore, but just wired Sennheisers.
Have you found a solution yet?
Click to expand...
Click to collapse
No. Not really
After using MW600 for 2+ yrs without much issues iam thinking to order Sony Smart wireless Headset Pro and see if it makes some difference. But, its not yet available in stock
http://www.sonymobile.com/cws/corpo...rtfolio/specification/smartwirelessheadsetpro
I read somewhere that some custom ROMs solve music stutter issue. Iam on stock locked and can't comment though.

skr_xd said:
No. Not really
After using MW600 for 2+ yrs without much issues iam thinking to order Sony Smart wireless Headset Pro and see if it makes some difference. But, its not yet available in stock
http://www.sonymobile.com/cws/corpo...rtfolio/specification/smartwirelessheadsetpro
I read somewhere that some custom ROMs solve music stutter issue. Iam on stock locked and can't comment though.
Click to expand...
Click to collapse
I was also planning on buying that Sony thing, but then I found my Nokia BH 214 back. It is now charging and when I'm back home I will test it. If it also stutters, I'm not going to buy a new headset, because it's likely to have the same problems, although that Sony is Bluetooth 3.0, which could make a difference.
I'll let you know the results with the Nokia.

I have stutter problem with sennheiser Bluetooth headphones. Am on stock 1.28, and disabling beats doesn't help (although did help on older version)
Music is unlistenable now
Sent from my HTC One X using xda premium

I'm running 1.28 & have the same issue with my car kit which is a works supplied Nokia car kit that allows A2DP connections. I'm definitely going to try running the GPS at the same time on my way home from work to see it that fixes it as suggested. I have a usb charger that I plug in so won't be using any extra juice. I'll post back my results.

skr_xd said:
No. Not really
After using MW600 for 2+ yrs without much issues iam thinking to order Sony Smart wireless Headset Pro and see if it makes some difference. But, its not yet available in stock
http://www.sonymobile.com/cws/corpo...rtfolio/specification/smartwirelessheadsetpro
I read somewhere that some custom ROMs solve music stutter issue. Iam on stock locked and can't comment though.
Click to expand...
Click to collapse
Sorry for the very late reply, I completely forgot it. Just yet I tested the Nokia BH 214. First my One X couldn't find it, tried for almost 10 minutes. Then I disabled WiFi, just to try, and yes the headset was found. Then I put WiFi back on, but it refused to communicate. Wifi off again, communicating worked. So to say pairing was easy: far from that.
Now the next phase: listening to music. Completely unusable. Very very bad. There's something wrong with output, vocals are washed away and sound like the singer is 100 miles away. While quality isn't an issue with the MW600. But also the gaps. What is also very strange is when the phone is on my desk in line of sight with my headset, the are only a few gaps. But as soon as I put the phone in my pocket, the gaps increase exponentially.
So I think in my case the only thing left is to send the phone back. There must be something wrong with it, my WiFi reception is also very bad. Bluetooth also sucks, so since WiFi and Bluetooth are handled by the same chip, there must be something wrong with it. I really like the phone and sending it back means it's away for 2/3/? weeks, but first I hoped it was something with the software but that hope is fading away.
--------edit: just pissed of by all this. Called HTC and I'm sending it back for repair. Nice phone, but basics like WiFi and Bluetooth must work and they don't. They said it will be back in 7-10 working days. Hope they can keep that promise. --------

Have the same problem with my Jabra Freeway, really annoying to get thos silent gaps when listening to podcasts and music in the car. Tried to run navigation on my way to work today to see if that made any difference but it didn't :-(

wph said:
Sorry for the very late reply, I completely forgot it. Just yet I tested the Nokia BH 214. First my One X couldn't find it, tried for almost 10 minutes. Then I disabled WiFi, just to try, and yes the headset was found. Then I put WiFi back on, but it refused to communicate. Wifi off again, communicating worked. So to say pairing was easy: far from that.
Now the next phase: listening to music. Completely unusable. Very very bad. There's something wrong with output, vocals are washed away and sound like the singer is 100 miles away. While quality isn't an issue with the MW600. But also the gaps. What is also very strange is when the phone is on my desk in line of sight with my headset, the are only a few gaps. But as soon as I put the phone in my pocket, the gaps increase exponentially.
So I think in my case the only thing left is to send the phone back. There must be something wrong with it, my WiFi reception is also very bad. Bluetooth also sucks, so since WiFi and Bluetooth are handled by the same chip, there must be something wrong with it. I really like the phone and sending it back means it's away for 2/3/? weeks, but first I hoped it was something with the software but that hope is fading away.
--------edit: just pissed of by all this. Called HTC and I'm sending it back for repair. Nice phone, but basics like WiFi and Bluetooth must work and they don't. They said it will be back in 7-10 working days. Hope they can keep that promise. --------
Click to expand...
Click to collapse
Thanks for info.
Seems the problem is more related to Bluetooth version & buffering.
I'm planning to buy Sony wireless headset pro with bt v3.
I'll update once I get it hopefully by end of June...
Sent from my HTC One X using XDA

I just tried using my Moto S10-HD after reading this, and thought I would tell you my experience. I have alot of music on my phone, and I just hooked up my BT with Wifi on and no issues, so I started to play music and so far 3 songs and no gaps stutter or anything like that. One thing that does happen which prior phones didnt happen is that when the screen goes to stand by after not touching it, there is a .5 second interruption in the song, but thats it I am currently on my forth song and the phone is in "standby" mode and it plays perfectly.
I have the WWE version of the phone using 1.29.401.11 ROM BL unlocked, rooted, and custom stock rom.

Not sure that it helps you but to share my experience; I have occasional stuttering on bluetooth using my Sennheisers if the phone is in my pocket. I found that I can replicate the stuttering if I completely cover the top of the phone with a hand on either side and cupped together at the top - in fact I can cut off bluetooth playback altogether.
This isn't a normal way of holding the phone obviously - but it does count if the phone is in your pocket, there is already some 'resistance/interference' from the surroundings. Other than that, I have great wifi reception, best of any phone I have had.
Could this be a hardware fault? Maybe they just need to boost the bluetooth signal / improve buffering?
I only got my HOX this week, aside from this issue it is great, no other issues - touch wood

Mine seemed to studder when it was in my pocket while I walked my dog. I sent it in for other issues and we'll see if the new one has similar issues.

Same problem here ! Kinda disapointed !

Same problem SonyEricsson HBH-IS800
I also have a lot of stuttering. It appears to be a very weak signal because it works better (though still not flawless) when I have the phone close to the headset.
Putting the phone in my pocket is already far enough for playback to completely stop working.

[Q] No sound from any device output, other than bluetooth-connected device

Having an issue with no sound emitting from any audio output on the phone, but sound will play through Bluetooth-connected device. No sound from front speaker (phone calls, dial pad), no sound from rear speaker (notifications, ringer, alarm, media) and no sound from wired earpiece/headphones. Seems like it's stuck in Bluetooth/headset mode, but turning off Bluetooth doesn't restore sound. Problem is intermittent, haven't determined pattern to the behavior.
Phone was rooted long ago but kept stock ROM. Flashed Paranoid Android 3.99 RC2 about a month ago, and problem seems to have started shortly thereafter, but not sure if related. Haven't tried to reflash.
Any suggestions? Tried searches, but didn't locate this specific issue.
SGH-T999 (US/T-Mobile Galaxy S3)

Is it a T999 or a T959? And flash back to stock.using Odin. If it still is a problem it's likely hardware related.
Sent from my SGH-T999 using Tapatalk

Sorry, phone is T999.....got rid of the T959 long ago, but must have been stuck in my head.
Will reflash this weekend and hope the sound issue is resolved. Thanks.

yardsale said:
Sorry, phone is T999.....got rid of the T959 long ago, but must have been stuck in my head.
Will reflash this weekend and hope the sound issue is resolved. Thanks.
Click to expand...
Click to collapse
Did some more investigating last weekend before flashing ROM (never did the reflash).....seems that often, not always, if I turn off the car ('13 VW) while still connected to phone Bluetooth, the phone's sound quits working (all sound). Rebooting phone and turning off Bluetooth does not restore sound. The only solution I've found is to reconnect to car's Bluetooth, then turn Bluetooth off before shutting down car, and that only works about half the time, but sound is instantly restored. My estimation is that this wouldn't be hardware related, is that a fair assumption?
I also have a Tasker profile set up on phone to disable PIN lock when phone is connected to Bluetooth device (enables Sena Bluetooth headset used with motorcycle helmet to function properly), could that be causing the problem? Anyone else experience this issue?

Please try another Rom. Some of the Custom Roms may not be uptodate with CM Checkins. This issue was reported a bit back. There were CM Code Fixes that may not have been incorporated in that rom.
I am using Slimbean 2.0 (Android 4.3.1) and have seriously tested its bluetooth capabilities.

its also been reported thst msny car manufacturers did not bother to put any time or money into their BT capable systems. they just threw it together so they could add to feature lists.
Lots of peopke have problems with BT in the car, especially on cm roms. but those are notorious for BT issues to begin with.
Sent from my T-Mobile MyTouch 3G Slide(HTC Espresso) using Tapatalk 2

Thanks for the replies. I flashed to Paranoid Android 3.99.1 RC1 but the problem still exists. I never had this issue with any of our vehicles, until switching to PA from stock ROM. If problem becomes unbearable, may go back to stock. Thanks again.

@yardsale
I should have mentioned in the previously. Please read this post of mine. Yes its a different Rom. However, here primarily the issue is that of hardware antenna of the T999 talking to the Car's antenna. Doc is 100 % correct, the manufacturers do use substandard Antenna. On that thread, someone else reported issues with two '13 VW for themselves and their brother's.

Audio Issues: Can't make calls

I am not sure if this has been discussed before, I tried searching around but I couldn't find anyone dealing with this issue before with the GS3.
I've had this problem with the Motorola S305 Bluetooth headset I started using with my GS3. Basically it would have problems going back to regular non bluetooth calls after I would use the headset, even with bluetooth off the call would turn off and on over and over again, but eventually with repairing bluetooth or forceclosing bluetooth share and the phone app I was able to get it to go back to making calls normally, using the speaker for audio as well.
But 3 days ago that changed, I couldn't get it to make calls after I had used the bluetooth headset to listen to some music for a few hours. It'd take 20-30 seconds to launch the phone app and by then it'd have zero audio. The people I called said there was no volume when they connected, and music wouldn't come out of the speaker again. I tried the fixes I had used before, no dice.
I tend to run rooted but just haven't had the time lately to get back to it, so I've been running stock, nothing complicated, but I figured when I pulled the 4.3 stock upgrade that would have to fix it....but it didn't, same issue. I also factory reset, no difference. I can still bluetooth pair and get audio to the headset for music, but i can't make calls that way, seems to have the same 30 seconds of jammed no changes.
I took it to sprint, they had no clue obviously, it wasn't a corporate store and the closest one is a hour and a half away. I'm about to actually call them and demand a replacement be sent, but I should be able to figure this out somehow, am I missing something? I hope someone has dealt with this stupid issue before.