IssueTracker

This issue does not reproduce with dev preview 4.

Closing this issue as per comment #2 from reporter.

Yep. Bluetooth issues here. 32gb Nexus 7. This being my first android device, I'm very disappointed.

SixAxis tool for pairing a PS3 controller to the Nexus 7 worked fantastic in 4.1.2. Updated to 4.2, the app can't connect to bluetooth. When it tries, bluetooth fails but it ALSO stops wifi from working.

Turning wifi off then back on doesn't fix it (stays stuck at turning on wifi). A total reboot is needed.

My bluetooth headset also has issues with studdering (tested this morn).

Not impressed. The joys of fragmentation.....

I don't really think this is a fragmentation issue, Ronald.

This seems to point to a core stack issue. Google needs to fix this ASAP, because the Nexus 7, Galaxy Nexus, and probably other devices are affected. I would not be surprised to see the Nexus 4 affected as well. We will know when they start trickling out to the new owners/buyers.

Flashed the 4.2 factory image to go sure that it's not just a bug caused during the update procedure. The issue still exists. Every 2-4 seconds it's stuttering..

Happens to me, too. I use a Nexus 7, stock 4.2 (prior Version was 4.1.2, obviously) and a Sennheiser MM100 BT headset. Stutters all the time. Controls work, the audio just isn't transmitted properly.

This happens with locally stored and streamed content, with video and audio files, with the Mobo Player, Youtube and Google Play Music apps, and it does NOT happen when I use regular old wire-bound earphones. Please fix it. The Nexus 7 is supposed to be a device to use the media offered in the play store, and like this, I really can't enjoy much content at all.

Just to add the device. It happens to me with a Creative D3X Speaker System. (Bluetooth 2.1 + EDR)

I'm also having problems with bluetooth and wireless since updating to 4.2.. Such a big thing to not notice from Google, hurry up and get this resolved fast.

Studdering issue with BT over wifi on my Nexus 7 since 4.2 upgrade.  Unpaired and re-pairing helped a little, but downloading anything along with music exacerbates the studdering. Not good at all.

I have been testing all morning, and it doesn't seem to matter what application or connection that's active, it stutters badly. Local, streamed, all content is affected.

Tested for a while now:

Started the classic Angry birds...background music was fine over bluetooth. But as soon as I started a wifi download the sound in Angry Birds began to statter like crazy. So everytime the wifi connection gets active and is downloading something bluetooth begins to stutter.

I also can't longer activate the internet tethering between my N7 and GNexus.

Flashed the factory image back to 4.1.2 on the N7 and everything was fine..no problems. Then back to the 4.2 Factory image and I had the same issues again.

Same problem here. Streaming audio to Bluetooth speakers is nearly impossible due to stuttering. Unpairing and pairing isn't helping. Local and online media affected.
Had no problems whatsoever while using 4.1.2, so it appears to be a defective BT stack under 4.2.

Seriously, how could this have been gone unnoticed?!

I have the same issue, bluetooth and wifi stop working.

I too have the BT stuttering issue. I may just return this nexus as I just bought it and get an iPad.

[Comment deleted]

I am having problems with Bluetooth stuttering on my Monster Clarity HD.  I had no problems at all on 4.1.2.  I have stop and start on local music, iheartradio, tunein, and Pandora. I tried connecting to my phone bluetooth speaker and I had the same problem.

Sorry, Google, can you please advise me how to revert the ota update?

Bluetooth is not usable with  4.2 anymore. worked perfectly with  4.1.2.

As soon as  the display turns off music begins to stutter.

thumbs down

I'm having similar problems with my Logitech Bluetooth keyboard for android 3+. I'm running stock android 4.2, and this problem didn't exist in 4.1.2. Most of the time, my nexus 7 won't even recognize that it's there, and in the rare time that it s does, it won't connect. Please fix this problem as soon as possible; my nexus is pretty much useless without a functioning Bluetooth keyboard!

I have this issue as well.  I noticed that even when just using bluetooth audio (no wifi) you can hear it stop after a couple of seconds, like a speaker turning off.  Never heard this prior to 4.1.2.  

Prior to 4.2 bluetooth wasn't perfect.  Games always had huge (1-2 second lag) now games have about 1/4 - 1/2 second lag, but they start to get scratchy, hiccup the more you play.  Before it was huge lag but not skips.  Maybe you were trying to resolve this?  I'd love to see gaming work with bluetooth, but at the least revert back to pre 4.2.  Also unrelated, but I'm going to vent about bluetooth.  I have a stereo and mono (jawbone type) bluetooth headset and I haven't found one app that can record audio via bluetooth with N7.  Most force close.  Either all those apps are written poorly or bluetooth audio recording is just horrible in android.  I wanted to try your native sip client to see if that worked but of course that's disabled in N7.

I tried my friend's playbook and bluetooth is flawless in all apps and games.  And when it came out the playbook didn't even have a2dp support.  But they got it right their first release.  There has been a bug on lag in realtime apps (games) filed over 2 years ago and not one developer comment.  Just fix this.  Expecting bluetooth audio to just work (movies, gaming-sync, recording) isn't unreasonable.

I'm experiencing this problem when using the Google Music Player with my Jawbone Big Jambox.  This issue did not exist in Android 4.1.  The stuttering does not follow a consistent timing and is most prevalent when the Nexus 7 has its screen off (background mode?).  If no fix is available within the next day or so, I'd like to find out how to revert back to Android 4.1.

I have my N7 paired to a Logitech Wireless Boom box (big one, not the mini one). I started having the same issues after receiving the 4.2 update last night. Just my two cents, but it seems to be, at least to me, a reception issue moreso than a conflict.

I was streaming Netflix to the N7, paired to the speakers. I noticed that when I moved the N7 to the other side of my desk, the stuttering disappeared. Out of curiosity, I continued moving it around the desk and watched the issue come and go. It was perfectly reproducible based on where the N7 sat. Not sure if this helps or not.

Having the same problem. My bluetooth connection makes the audio either studder of fade in and out every 10-15 seconds.

Can't wait for this to be fixed in 2014!

I'm also experiencing stuttering with Logitech wireless music adapter, it worked flawlessly on 4.1.2, it stutters every few seconds on 4.2.

I'm getting this on a Nexus 7 16gb with a pair of Sennheiser MM100 bluetooth headphones, whether they are connected to both phone and media audio, or when they are connected only to media. Happens in every app, as far as I can tell. Audio cuts off for a very long time when connecting to a wifi network, not sure if that is related to the root cause.

Yep I get Bluetooth skipping every couple seconds after 4.2 update on lg hsb700

Having the same issue.

A related bluetooth issue on my GNEX is that I can't connect to my Wii Remote anymore where I was able to do this in 4.1.1.

I'm having the same issue streaming to my Sony Ericsson MW600 BT from eg. spotify.

I have just upgraded to 4.2 using the OTA update last night. I have been listening to music on my Nexus 7 a lot recently. Its been flawless on 4.1.1

It doubly disappointing as all my music has just finished uploading to googles recently launched Play Music store. I can confirm however this is happening to all Bluetooth audio.

It appears to occur as soon as the CPU starts to a get a little busy. E.g. When opening Play apps store front page. Presumably the bluetooth process is getting starved of CPU cycles somehow.

Device: Nexus 7
Speaker: jawbone jambox.

When both the WiFi and Bluetooth are enabled, stuttering occurs on the audio.

Same issue as above when connecting to my car. BT connects and reconnects every few seconds.

Same problem here, Nexus7 32GB, Android 4.2, Creative ZiiSound D3x Bluetooth speaker. It is clearly related to Wi-Fi data transfer; I stream my media from a DLNA server, and with HD video there is much more stutter than with internet radio.
With 4.1.x I noticed that it was the other way round. Splashtop GamePad THD lagged a lot when the Bluetooth speaker was connected.

Same issue with bluetooth stutter. Worse when streaming music

My bluetooth audio also stutters in 4.2 where as 4.1 was working fine.  Please fix this ASAP as I use my Nexus 7 daily to stream content to my home stereo.  

I was developing a communication scheme in an application over bluetooth.  Then an update came in last night while I was coding.  All of a sudden, it doesn't want to connect with my device anymore over bluetooth.  I tried repairing and connecting.  It even had trouble repairing.  Saying it couldn't talk/connect to the device.  After several tries it finally paired.  But still no communication like it was doing for me less than an hour ago when I had the old update.  Dissappointing.  Now I have to use another device around the office here instead of my Nexus 7.

Nexus 4, SonyEricsson MW600, stock JOP40C. No issues while streaming music from Google Music via Bluetooth.

Nexus 7, not so much. Starts stuttering when going into sleep/screen off. Temporary workaround appeared to be just letting the N7 idle into daydream, no stuttering then.

For what it's worth - another confirmation of the problem. Pain in the neck! I use the N7 all the time for streaming Internet music to my home audio set - upgrade rendered it useless for that purpose.

I've been building a project that talks to BlueTerm on my N7.  Before the auto-update to 4.2 it took an average of 3 tries to connect; now, no connection after lots of tries although pairing is still ok. (Running only 9600 baud.)

[Comment deleted]

No comment yet from Google??

No one else is mentioning gaming, but it's a long-standing issue with all android devices.  It's irks me on a long train ride when I feel like playing a game to shut down bluetooth and plug in my ear buds...

 I know there was a bug filed long ago, can't find it now, but here's a more recent one:

http://code.google.com/p/android/issues/detail?id=31556&q=bluetooth%20movies&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

I mention this because I don't want for you to simply revert to bluetooth pre 4.2.  How about actually fixing bluetooth so it's in sync with everything?  And then maybe god forbid, fix bluetooth audio recording.

Simply put, bluetooth audio has been horrible for years in android in all versions.  Is the kernel/os simply not capable of real time audio via bluetooth?  Do you have to buffer two seconds to avoid skips?   I thought it was an inherit limitation of bluetooth but other non android devices do not suffer from this.

Same Problem with my nexus 7 and 4.2. Listening to Bluetooth Audio while wifi connection is active and transferring data is not usable.

Same issue.

Lack of unit tests is the problem here.  Mentioned in this ticket a while ago (which has so far been ignored and not assigned):

http://code.google.com/p/android/issues/detail?id=31585#c45

Every version of android from nearly every vendor has bluetooth broken in some way.  I'm glad it's broken in 4.2 in such a visible way as it may spur someone to actually do some quality checks in this area and finally add proper unit testing in all aspects (ie: actually using it in the real world).  It's been an issue for years!

Welcome to android.

I have same issue.Nexus 7 WiFi makes bluetooth jambox stutter.or vice versa. YouTube lag and Google play stutter. Unacceptable.

Just a me too comment.  Can't stream to my Philips fidelio bluetooth speaker.  Is definitely related to wifi usage.

Just discovered that turning off all GPS radio's seems to fix the sound streaming issue (tested it now for over an hour with two different BT headphones) . This is of course not an acceptable situation however you may want to try it out until Google brings an official fix.

Tried it with disabled gps, still the same problems.

I've also tested it now with my 3rd BT headphones - Sennheiser MM450-X and here's the situation :
1. Sound quality definitely drooped down - in comparison to JB 4.1.2 and in general !
2. Stuttering issue decreased dramatically - from every few seconds to maybe once every 10-15 minutes !

Again not sure if it has anything to do with GPS radio's however I tested it with two devices (I actually own two N7) and at least in my case GPS off seems to make some change.

I updated to Android 4.2 just an hour ago. Now I have the same issue as described above.
A Logitech Mini BoomBox is connected to my Nexus 7 via Bluetooth. If I now start a download in the background while listening to music or watching a movie, the audio is interrupted approximately every second for half a second.
Please provide a fix for this issue without delay. The bug is very annoying.

Google has been communicating with the BT team, and I have confirmation from developers on Google+ that people are looking in to it. Also, Mr. Xie has been assigned to our plight, so I have faith. Google isn't just going to shaft their customers with a major issue like this. Let's all have patience.

i have the stuttering audio issue here, using a pair of Parrot Zik BT phones.

turning off GPS seems to have helped somewhat :)

I appear to have the same kind of Bluetooth problems on the Nexus 10: connecting a Bluetooth keyboard works for a while, then it gets stuck and it is not possible to connect any Bluetooth device anymore.

The wifi also stops working until I reboot the device. Annoying... :-( Not sure if this is related, but it did happen exactly when the Bluetooth was stuck. I disabled the wifi and I couldn't turn it on again, frozen at "turning on wifi".

Also have BT problems...
In my case i'm note able to connect my BT-Gamepad to my Nexus 7.
Works on all my other android devices very well...

Perhaps Google should offer an easy way to return to v. 4.1.2 as a stop gap solution.
I would be happy to go back.

Stuttering with BT speaker and TUNEIN.  Plus very deep bass voices.

I used to be able to connect to a bluetooth tethering device, but this cannot be done in 4.2

Man I wished I had not updated to 4.2. My lovely Blackberry Playbook Bluetooth keyboard/trackpad has stopped working. The pairing was gone after the update and my Nexus 7 16gb wifi can no longer find it when searching for Bluetooth devices.

I have connection problems with my Sennheiser M50 headset - after upadting to 4.2 of course.

Bluetooth constantly  stutters on my 4.2 Nexus 7 when using the Samsung HM3000 headset(BT 3.0).  Before the update on 4.1.2, bluetooth audio would lag when playing games, when pressing the soft keys and typing the default or 3rd party virtual keyboards.

Please do not just revert to 4.1.2 when addressing this problem. Actually fix the audio Bluetooth delay that has been plaguing some of us for years!  Copy Apple on making blietooth actually work and hopefully not get sued in the process or save us some money and not even bother to offer Bluetooth on your devices since it seems the Android OS is incapable of real time audio through Bluetooth.

same issues here on a nexus 7

apple wireless trackpad no longer works
ps3 sixaxis no longer works
wiimote no longer works
apple magic mouse works but often stutters

similar issues with netflix. sound cuts out every couple seconds. didnt do that with 4.1.2

Stuttering sound from a jawbone jambox. At first I thought it was related to wifi, it appeared when streaming music from spotify or watching youtube clips. However it appears also when playing local music files.

Hi from France, I use my Nexus 7 to listen music in my Helmet when i drive my motorcycle.  I'm not sur the problem becomes from android 4.2. The same day i've updated android (to 4.2) and Google Play Music and I have the problem I can't listen music ; every 4-5 seconds there is a small pause when I use Google Play Music.

But I've also discovered that when i listen podcast with the application PodKast there is no problem, no pause !

So, I will try other application to listen music ...

got the same issue on Nexus 7

Another app, that shows data from a Bluetooth temperature sensor crashes nearly every hour now. Sensor works in SPP mode. Also problems with Bluetooth chat apps (SPP)

Nothing of that occurred with 4.1.2.

Extremly disappointed in google.  I use bluetooth everyday on this device and now it is unusable with studering consentally.  Please upgrade PRIORITY to high.

I have my N7 connected via BT to my Pioneer system in my truck. Since upgrading (??) to 4.2 the audio now chops up. It is very bad when the N7 has an active WiFi connection, less severe when it does not have a WiFi connection but still not usable. However turning WiFi off stops the BT audio breakup.

How could Google not see this problem? Not a happy customer.

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If this was Apple, this bug would already be known as "bluetoothgate". I bought a Nexus7 to replace both my smartphone (3GS) and 10" tablet (iPad). I NEED bluetooth for that. Why the priority is only set to medium is beyond me. Everything else works almost flawlessly, nothing is as bad as this bug.

I confirm this bluetooth bug with nexus 7 android 4.2. Ever since I update
to version 4.2, I experience stuttering and cuts in bluetooth music

Patience?! Bluetooth has been broken in some way or another in android on
all devices for years, it's not just this 4.2 issue.  Even reverting back
to 4.1.2 Bluetooth isn't perfect.  Ever try and play a game with Bluetooth
audio?  Any realtime app suffers from this ( VoIP)

Discovered also problems with Android Beam which I never had before 4.2.

Transfering pictures with Android Beam from my Nexus 7 (4.2) to my Galaxy Nexus (4.1.2) fails.

I also have the same problems with my Nexus 7.

Bluetooth does not work in the jelly bean 4.2 update (music skips every few seconds). Pretty pathetic since it worked perfectly before update.

I have had it with this issue. Nexus 7 4.2. two jamboxes big and small.WiFi and bluetooth  plus Google music equals epic fail. Stutters and now it is actually SURGING! Unusable. When screen goes to sleep problem gets worse .WiFi is set to stay awake. I have tried everything except giving up. Is something this simple that difficult to get right?

Sling box app is not usable as soon as bluetooth speaker is turned on. Stutters constantly. YouTube and Netflix is a problem as well.

I have to say I actually love this bug - Bluetooth has never gotten a lot of attention in Android because there where not that many users of Bluetooth stuff around, but this big topic ( Audio ) gives a big outcry of users ( 111 stars on this issue in 3 Days )
Really hope this right signal will trigger action so that the android developers team will get some clever BT guys
I think BT will rise 2013 with BT 4.0 and Android should really be good in this direction - especially seeing that google is trying to push the web of things with e.g ADK and NFC

Not pairing with my Wiimote at all. Other bluetooth devices like speakers and the car audio breaks. Any ETA to fix?

This is more than a bug. It is a disgrace.it takes away a major functionality of many devices.who needs a music player app and speakers when the device can't play frikken music.

I am having the same issue.. I hope you guys get on fixing it, every time I use Bluetooth (primarily for sixaxis but occasionally for tethering) it gives me errors and my WiFi shuts down. I use my nexus heavily for gaming and it'd be a real shame not to be able to utilize it for a long time. Disappointing but reconcilable if dealt with quickly.

i just got my 32gb n7 and well the ps3 control wont work anyone and the bluetooth music streaming in my car is very shuddery :/

After my nexus 7 speakers blew, I thought I would get a bluetooth speaker. Came 2 days ago. Then the N7 upgraded itself to 4.2. And yes, music stutters. So I STILL have no sound at all with my N7. Really annoyed.

For now, until this is finally fixed, I have some information that my help most (hopefully all) of you.

I just got my N7 (LOVE IT!!!!) and wanted to test this issue soon, because I had read somewhere (can't remember where) how someone got rid of the problem on his N7. Disclaimer: if this doesnt work for you, please no flaming, I just want to help...

Settings>Apps>All>Bluetooth Share. Clear all app data ( i think you will lose any paired devices as well...) Then pair (repair) devices and give it a try.

I tried it with my LG HBS-700 after doing this and watched some youtube vids and only heard it hiccup once, but i think it was either from the stream or the vid itself. And it was little to no lag.

I really hope this helps people until Google can fix the Bluetooth stack.

Thanks...clearing the data worked for me on nexus 7 and my Fidelio dock!!

Tried clearing the data. For me, it didn't solve the issue unfortunately; problem still occurs when streaming online media. Unpairing the device wasn't helping either.
Right now I'm experiencing gaps of up to 10 seconds each (!), while listening to TuneIn.

(Using a Creative D5)

Sorry, I had no luck with Andrew.v's method. I still have audio stutter when WiFi is active, even when I play a local audio file while loading web pages. I also still have video stutter when streaming videos via WiFi using Bluetooth audio; that effect was already present in Android 4.1.2. The same videos stream fine with Bluetooth audio disabled; even a Bluetooth mouse does not interfere with the video. It really seems that there is some interference between Bluetooth and Wi-Fi as soon as a significant amount of data is transferred on both at the same time.

Clearing the data didn't work for me (Nexus 7 3g).

Ok just tried the app database and cache clear recommended above on my N7 16g 4.2 and then stopped and started Bluetooth again and is successfully detected my Motorola BT keyboard and accepted the code.  So there is at least SOME merit in doing that for static devices.

Love the new features, but I can't live without Bluetooth connectivity. Pairs fine, but stutters badly when downloading things or browsing the web. Will be reverting to 4.1 if its not fixed this week.

Same issue for me.
Device is nexus 7 (8gb) and a Bose soundlink box.
sound is broken over Bluetooth when I stream from spitify.
This started with the 4.2 update

This is a serious issue, but not limited to 4.2. It's clear Bluetooth support on Android is poor and interferes with wifi signals. I have this issue on a 2.3 HTC as well. It basically renders speaker docks useless.

Nexus 7 16GB 1st version
I noticed a slight improvement last night
and this morning
Google play, youtube and netflix were working flawlessly.

This issue was apparent on both my Nexus 7s and on multiple builds of Android. For whatever reason it is worse now running 4.2. I have taken hours trying to troubleshoot and use some of the advice of folks in this thread. Turn off Gps, clear apps etc. Nothing works. I have noticed that the problem gets worse when the light goes out. I also notice that when using Google search or Google Now the Nexus will lag with bluetooth and WiFi running. The problem has gotten so bad on my system its almost laughable. I was showing a friend my Nexus/Jambox setup and the music started to surge so bad David Lee Roth sounded like he inhaled helium. Skipping is annoying enough but now its playing sometimes like a record on the wrong rpm. High and low. Is someone going to acknowledge that the problem is a priority and it is going to be fixed?

Ended up reverting to 4.1.2 as this was a major issue for me. Now, everything is working properly. Unfortunately, I'll have to wait until this is resolved to upgrade again... Based on the other bug link I saw here, it appears as if Android Bluetooth needs some love from the dev team. Hope a 4.2.x update sees some serious improvements.

Now, maybe it's a good thing I couldn't buy the Nexus 4 yet :)

Is there a way of reverting to 4.1.2 without rooting?

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Some are saying reverting back to 4.1.2 and everything is perfect again, but bluetooth was never perfect.  If you say it was perfect you more than likely don't game on android with bluetooth.  

Anyway, I wanted to post that what a couple of others have mentioned, I disabled gps and so far the skipping has stopped.  Also, gaming is much better than 4.1.2 as it had the 1-2 second delay in audio.  4.2 is not perfect, like 1/4 of second behind, but it's much better.  However some games seem to have sync issues a little more than others, and some suffer from skipping more.

But overall, ignoring the gps conflict, 4.2 bluetooth audio is, in a way, better than 4.1.2.  I'm still going to test more with wifi enabled, but youtubing streaming for me was in sync as long as I had gps disabled.  I just wanted to stress to the android developers to please  not to simply revert to 4.1.2 code as a fix, as some have requested here.  It seems you are much closer to fixing bluetooth audio once and for all and in some ways 4.1.2 will be a step backwards again.

Same problems.  Nexus 7 unusable after the 4.2 update due to audio problems with Bluetooth with WiFi enabled.  foobar.  Thinking about rooting my device now.

Disabling GPS does nothing for me except make me more lost.

Why revert when it was almost just as bad?

I too tried disabling GPS and so far spotify has been able to stream unsynced songs stutter-free, where as earlier it would stutter during playback even when playing synced songs.

Bluetooth perfectly broken. Can't even start to describe the many odd issues I am facing on Galaxy Nexus GSM.

[Comment deleted]

Same here while watching vids on youtube.

Nexus 7 8gb. Bluetooth headset stutters on any kind of playback with sound.  google music, youtube, and netflix.

I have used a LG HBS700 (Tone) bluetooth headset with my Nexus 7 device since receiving it in October, with very few inconsistent hiccups that seemed like little more than occasional interference or some other nuisance.  Since the 4.2 update to the Android OS,I have had similar bluetooth connectivity issues to what others have reported.  In my case, the night that I updated my Nexus the issues started, where the audio streamed from Spotify (in offline mode, and I hardly use other audio applications, and with and without wifi enabled) skips or hiccups frequently.  Often this series of small gaps in the audio is very regular, happening every few seconds with a certain tempo.  After a period of that activity though, it might work great for about 20 seconds, and then skip every second for a short time before going back to 'normal' (the regular skips).  That is just an example as it seems mostly unpredictable.  Interestingly, and a short-term workaround is that when the screen of the device is active, there are zero problems.  It seems I can just drain my battery leaving the screen on and suddenly all the little gaps disappear.  Also something that is slightly different from some of the similar posts on the xda-developer thread about this issue, and I'd imagine some of the posts on this page, my Logitech Android 3.0+ bluetooth keyboard is working just like it used to.  This may be 'because' I have the screen active though.  I am actually typing this message on the keyboard.  If prompted I can test with other apps to find out if they are similarly effected, but it seems there is already a wealth of people reporting the same problems.  In short, having the screen on seems to fix connectivity issues, and my individual problems are not effected by wifi.  As a side note after viewing a few posts above, I very rarely enable GPS on my Nexus, so it seems unrelated to the issue I, personally am having with the device.

My bluetooth on Galaxy NEXUS dont turn ON anymore after upgrade!

Same issue here: bluetooth keyboard no longer visible and headphones stutter. I just tried the issue noted above and it did not work: "Settings>Apps>All>Bluetooth Share. Clear all app data ( i think you will lose any paired devices as well...) Then pair (repair) devices and give it a try."

I really hope Google puts a fix in for this issue soon. It's hard to be believe they didn't sufficiently test before releasing the update. Had they done so, they would have certainly discovered the problem.

One more thing. I think this topic should be retitled to more accurately reflect the problem from "Bluetooth almost broken..." to "Bluetooth broken..."

Nexus 7 16gb
Bluetooth is unusable after 4.2 update. N7 will not automatically connect to my Bluetooth sound system and when I manually connect the connection drops every few seconds. Im debating whether the whole "Google ecosystem" I have going on is really worth all the bullshit I go through keeping everything working. I've been an android user since its conception and I see the progress but this shit is getting old. I like to tinker with my gadgets but sometimes I just like them to work. Work all the time with no effort on my part.

Same here :-\

Android Police just posted a full list of 4.2 bugs (to date)
This sounds as a huge fiasco!!!
Wonder if anyone at Google actually reads this and plans to suggest at least some interim remedy.
Meanwhile I simply moved back to my old iPad 1 - still works great btw :-\

Thankfully I'm not on 4.2 on my Galaxy Nexus yet, I was going to order a Nexus 4 and this is a deal breaker for me.  I use CM10 with Bluetooth MAP functionality in 4.1.2, and until this is fixed, I won't be upgrading my device, or software to 4.2

I am having the same issue. I have a pair of headphones that have always had problems with my droid RAZR but they worked flawlessly with 4.1.2 but now it's terrible and unusable. Please fix ASAP.along with all the other bugs... I love android and this is the worst release in a while so get some quality control and carry on.

After updating to 4.2 my Nokia Bluetooth headset stopped working.
Can't use it for listening to audio, Skype doesn't play audio through it...
So now Bluetooth is totally useless.
Please raise priority because this is serious screw up.
We all need this fixed ASAP so don't let us down.
BTW I'm using stock ROM, didn't unlock bootloader or Root my device in order to keep it "safe". Now I have a tablet without bluetooth... :-/

Network peering over Bluetooth experiences periodic dropouts.  No wiimote connectivity for 4.2 either.

I also recently encountered this bug when trying to send a file to my Macbook. Seems Android 4.2.1 will be the quickest release yet.

We are aware of the wifi/bluetooth co-existence issue and are working on the problem. Sorry for the trouble.

Same here on the Nexus 10 connected to Creative D100 speakers. Stuttering all the time.

I use a Senheiser MM400 on an Nexus7 16GB and an Nexus4 16GB, both with 4.2(Build J0P40C)
Nexus 7 Kernel: 3.1.10-g22b4fcd
Nexus 4 Kernel: 3.4.0-pref-ge039dcb

Nexus 7 is stuttering every time, Nexus 4 work's fine, nothing stutters.

Hope that helps

Same problem, with Nexus 7 16G and Jabra Halo 2.

Same problem with my Nexus 7

Open Garden now will not connect to my Nexus 7 device via Bluetooth.  It worked great with Jelly Bean 4.1 and then after the update it wouldn't work.  No other changes were made with my device. Not even any app updates.

The weird thing is that my Bluetooth keyboard and mouse seem to work okay.  So Bluetooth does work to that extent but when it comes to Open Garden, I can no longer pair the Nexus 7 with my phone.  They simply do not see each other from the Nexus 7's perspective.  The phone will see the Nexus 7 but not the other way around.

Experiencing same issue as OP on 1st run Nexus 7. Bluetooth streaming of Play Music to Logitech bluetooth audio receiver gives choppy playback.

Same problem here. Nexus 7 with plantronics earpiece. Interruption every minute or so. Unusable.

Same issue here, music stuttering on Nexus 7 after 4.2 upgrade, LG HBS700 headset.  Unusable!

My bluetooth stopped working when I upgraded to android 4.2 - please fix this in the next version.

I've been using a Leica Disto laser measuring device to input data to a programme on my N7 via bluetooth. It worked perfectly until the 4.2 "upgrade", now I can pair them, in that the N7 recognised the code and reported the Disto paired, but the programme and the device don't agree! No data can be transferred.
Looking at the details for the device, the screen only offers the option to unpair. It doesn't offer option to examine or change profiles.
It seems to me that SPP is missing or blocked.
I need this sorting out. My Nexus 7 had become a serious work tool, but now it's useless for that purpose without bluetooth working.

I too have this issue.  There are a few things that I noticed helped:
Using local music works best - but still has issues where music either stops, or stops and then resumes running faster for a few seconds, creating horrible distortion
If I leave the screen unlocked, the also seems to reduce the occurrence of problems.
Not using the wifi for ANYTHING helps.  

I have not tried turning off network notification or wifi optimization, but the device is set to always keep wifi on during sleep.  

This SUCKS, plain and simple.

Received the Android 4.2 update on my Galaxy Nexus (yakju) today. On this Galaxy Nexus I don't have the bluetooth audio issues I got with 4.2 on my Nexus 7. Maybe it has to do with the different kernel?

I have the very annoying problem as well. At first I thought it was the connection so I rest my Soundlink and reconnected my N7, but still had the same problems. I unpaired the Soundlink from my N7, but that didn't work.

I connected my Verizon Gnex and it played just fine on the Soundlink.

Just my 2 cents but I would rather have this fixed then the calendar issue. I think Bluetooth gets used more then a calendar. But that's just me.

For those who say that Bluetooth worked perfectly until 4.2 - your experience is unusual.  Bluetooth has always been a source of frustration and wasted time for Android users and developers alike.

Fortunately, Google has taken the bull by the horns and commissioned an entirely new Bluetooth stack for Android which shipped with 4.2.  In theory this is a good thing and should lead to a more stable experience for everyone

Unfortunate the new stack works about as well as most other Bluetooth stacks shipped with Android, and Google is still happy to ship software that is completely broken.  On a positive note, this issue has been 'assigned' and that is a good sign.

As someone else mentioned, it is unlikely that the situation will get much better until they add to the Compatibility Test Suite.

I agree with the poster of comment 134,bluetooth on Android has NEVER worked perfectly in all situations. Mostly it sucks. None of my headsets have worked properly, yet they all did on Windows Mobile handsets. I thought it was just me! I was amazed when my Leica worked straight away on my N7 ;expected as much when it wouldn't work with my HTC Sensation running 4.1.1 and 4.1.2;and now really upset that it won't work with either.
Point to note here Google, my problem occurred on my N7 AFTER upgrade to 4.2,but it existed on my HTC Sensation with 4.1.1,so something was wrong then, and maybe introduced into 4.2 by some other change which affected how the N7 handles bluetooth.

I have a GSM Galaxy Nexus and yes, I experience a lot of Bluetooth static and stuttering on 4.2. The quality of audio streaming is terrible. These issues never existed in 4.1.2.
Please provide a fix ASAP!!!

Besides the bluetooth issues on my Nexus 7 I've noticed that WiFi also has some strange behavior and sometimes disconnects for no reason.
I try to turn it off and on again, it works for like one minute and then disconnects again.
The only workaround is to turn off tablet and back on.
A new tablet that had everything to be respectable in this hard market doesn't have basic features working after the 4.2 update.
The first time I buy an Android device without HTC Sense and I already feel like I was hit in the stomach. This is my 9th device BTW.

Priority for this problems is incorrectly adjusted. What can we do with a tablet without communications?

Any time frame for a fix? This is needed like air for my lungs. Please correct this asap. Thank you.

I have the same stuttering problem with a Plantronics Voyager Pro+ Bluetooth headset. Also, audio latency over Bluetooth seems to be worse with 4.2.

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Stuttering here Spracht blunote external bluetooth  speakers post update 4.2. Terrible audio quality .

Galaxy Nexus with Sony MW600. A2DP quality has been dramatically reduced after jelly bean 4.2, no shuttering but a constant buzzing sound making it impossible to  use my headset. Tried re pairing the device but still no good. This should be an urgent fix, depend on streaming and handsfree....

Deleting Bluetooth cache data ("All Data" really) and repairing does solve my problems, but not always. I use blue-tooth speakers with two different blue-tooth devices and after the speakers have been paired with the N7 again, the problem is back. The trick of clearing cache and re-pairing does not work consistently.

Very annoying is the lack of commitment in the response from Google. I read one note in the list here that says "we're working on it" - but without any further insights into priority, ETA of a fix, etc. The Status of the issue has been set to Assigned and P=Medium for over a week...

cant use bluetooth pls fix ths ASAP!!

Getting ready to downgrade back to 4.1.2 on my Galaxy Nexus because of the Bluetooth issues. Random disconnects even though Bluetooth is still on. Trying to reconnect sometimes works, other times my vehicle says no phone found. At least I can turn mine on, others can't even do that!

Galaxy Nexus running 4.2 (cleanly flashed from the yakju factory image, no OTA update), Bluetooth audio is completely broken. It has always been fine on this phone before, but now it stutters like crazy and is absolutely unlistenable. The new BT stack clearly has issues and needs to get fixed ASAP.

Same stuttering using my Motorola BT headset. Works fine on Win7 laptop and iPhone.

A2DP stuttering happened rarely with 4.1 on N7 16GB, but now it happens every few minutes with 4.2; also, now it stutters every few seconds when wifi is used and Bluetooth now has a shorter range before complaining. This is not tied to headset, as I tested this out using multiple headsets.

I want to just confirm that this issue is occurring on my nexus 4, as others were speculating that this would be the case.

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Nexus 7.  I can confirm that streaming over wifi to a bluetooth speaker using 4.2 is intermittent and unusable as users state.  This is the whole reason I bought this device in the first place and so frustratingly disappointing.   It indicates inadequate software validation on the Nexus 7 which is likely a systemic issue, meaning additional issues will also arise with Google subsequent updates.  There were no noted issues with 4.1.2.  No date appears to have been provided by Google as to when this and the other smaller issues of 4.2 will be resolved.

Having the same issue. Would have expected faster response from Google. Very disappointed

Google is ignoring us. That's frustrating like hell. I just want to return this great device with CRAP ROM and forget the 4.2 train.
Knock knock Google... WAKE UP!
WiFi and Bluetooth are messed up on JB 4.2
Fix this or else you will soon have more RMA than you can handle.
I hate to make ultimatums but this is TOO SERIOUS TO BE IGNORED. Every 4.2 device is an expensive paperweight until this issue is fixed.
Nexus 7 32GB STOCK!

Anybody that considers priority=medium must be from other planet.
I need BT and WIFI on my tablet. End of conversation.
Instead of wasting your time with easter eggs you should immediately fix the bugs that haunt JB 4.2.
Signed: someone that has to work HARD to earn money for my gadgets. Try walking in my shoes, PLEASE!

I am also experiencing bluetooth audio stuttering with nexus 7 and the 4.2 update. The sound worsens with wifi and bluetooth on at the same time. I tried them on a galaxy s3 with an earlier android version and the headphones work flawlessly. Makes bluetooth music unusable on 4.2. Its not like there is an inbuilt way to revert an android version, soo frustrated.

I'm experiencing the same issues on my Nexus 4 with a Plantronics Voyager Pro.

Bluetooth audio is an essential feature on mobile phones and I would not have purchased the phone if I was aware of this issue.

I'm suffering from this as well on both my Nexus 4 and Nexus 7.  I'm also suffering from really low volumes in Google Music.

Also suffering this issue - Using new ZiiSound 5x speakers, and getting regular stutters. Can't even listen to a single track without it cutting out, making it a useless streaming solution. Please fix

Have the same problems, Bluetooth lost connection (have a jabra Street 2) and  the quality is worse.
Google please help us!

I've loaded some music on my N7 last night to try out my Sony BT headset, and yes I have the same problem. Just a missed beat on the first track, barely noticeable. But after four or five tracks it was missing up to five seconds every minute or so, with shorter skips in between.
It would be more reassuring if Google would acknowledge this and give some updates from time to time.
One wonders and indeed assumes that the guys at Mountain View MUST walk around with the latest products and software, using their own phones and tablets in Real World situations. If I were a developer working for Google right now, I'd be driving to work with a Nexus 4 connected to the car bluetooth or hands-free, or using my N7 in the office, and thinking WTF are we doing wrong?!
And then I would be trying to tell the world "we have got it sorted" and not rest until it was.

Galaxy nexus after OTA to 4.2 Bluetooth broken. Can't activate it. :-( yakju

My Nexus 7 since the update to 4.2 stutters nearly all the time when streaming audio via Bluetooth to my Bluetooth speaker using Google Music. This was not the case prior to the update.

nexus 7 16gb version C60 - to Bose soundlink.
speedtest typically varies from 17000 kbps to 23000 kbps.

Update to my comment 94:
Bluetooth seems to behave when I power up cold and if I immediately run youtube or netflix. Lipsync is as good as it was on 4.1.2.  I've watched 4 or 5 netflix movies in the last 4 days and countless youtube videos without any stutter. Still, when I run other apps or put the device in sleep mode I typically get the stutter and lagging lipsync. I then power off/on and 4 out of 5 times bluetooth behaves. Nonetheless, I still want a fix. Over half of my time spent on this device involves bluetooth.

Same problem with Nexus 7 and Creative Ziisound DS5

Problem goes away when "pin" music in Play Music, so it's streming locally.  It's only a problem (for me) when streaming wirelessly to the bluetooth device.

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Same problem here as well...both Nexus 7 and galaxy Nexus.
Getting a lot of noise and air in sound while connected to a wireless speaker.
What's the root cause? have they tweaked the bluetooth API stack or sth?
This can't be left until the next stable release... it needs a patch immediately.

Same issue occurring on my tablet. Makes all outputting of sound to my Bluetooth speaker cringe-worthy.

GN updated to 4.2...having major issues with with car audio bluetooth...

Facing the same issue. Using Google play music on my nexus 7 16 GB paired with jawbone jambox.

Please fix this ASAP. My Spotify-account just makes no sense at the moment ...

My mom & I both have this problem, definitely seems to be BT related since its program agnostic and the popping only happens over bluetooth.

Also having the same problem with my Nexus 7. If I turn off the wireless connection and stream music directly from the tablet it works fine but as soon as I turn it back on the stuttering starts immediately,even when streaming content from the device. Again one of the main reasons I bought the N7 was to stream music to my hifi, just coughed up for Premium Spotify was well!

My galaxy nexus won't connect to any Bluetooth devices at all.

I am waiting for a report that the machine and OS work before buying a Nexus.  I do not know on what basis the priority of this problem is assessed as "Medium", but I suggest that Google treat it as "Emergency".

I am getting very annoyed waiting for a sign that this problem is getting handled. Bluetooth audio is at it's biggest and best right now and unless I sacrifice wifi I can't use a frikken 300 dollar speaker with my Android device? I brought my BIGJambox to a family get together this weekend and they all had fruity devices. They all worked flawlessly. It's embarrassing. Cmon already. This new update isn't the first that this problem showed its ugly face. Its been around for a long time now.

Same problems here, N7 won't stream music to any bluetooth device.

Constant audio glitches, every time. This thing is now unusable, any ideas how to revert back to 4.1? That worked fine for me.

Same problem here when trying to play over bluetooth to a logitech bluetooth receiver. However, the problems seems to be worse when using Google Music for some reason.
Content being streamed over Wifi or stored locally doesnt matter

Same problem with Bose SoundLink® Bluetooth® Mobile speaker II on Nexus 7.
Samsung Galaxy Nexus 4.1.x is doing way better.

same problem with motorola S605 stereo  bluetooth headset

Same problem with my nexus 7...... Google please fix!!!!!