Strange Bluetooth issue on JB official - Galaxy S II Q&A, Help & Troubleshooting

Hi
I experienced strange problem with bluetooth on official JB and on lead JB.
Bluetooth in car audio system reconnect every some time ( for example 1 minutes ).
But during the call, when I talk several minutes it's stable connected without any reconnect.
It seems there is problems with battery saving.
Is something change in battery saving policy for bluetooth?
In other ROMs for example: ICS, GB this things always work fine.
Any ideas, how to fix it?
regards
Rafal

Related

[Q] Bluetooth Problems after Upgrading ROM

Bluetooth was fine before I installed a new KH3 ROM. Now, the phone lags whenever I turn Bluetooth ON. Sometimes it actually freezes, so I have to restart it. The worst thing is that it does not dial numbers until I switch Bluetooth OFF. I have changed ROMs, tried different kernels and modems and also tried different headsets. However, the problem didn’t clear.
Has anybody faced a similar problem?
No responses, so it's either nobody has this problem or nobody turned his bluetooth to test!!
Will you be kind enough to turn your bluetooth (even if you have no bluetooth headset). Test how responsive your phone is with bluetooth ON. Can you dial any of your contacts?
Thanks.

Bluetooth audio in car to phone not working

So, I'm having a strange issue with my new Note that I can't quite determine where the root cause may be, or if it's a known issue.
If I register my Note with my car as both a phone and an audio device (how the Infiniti nav/stereo works) I can use the Note as a phone fine UNLESS I start an audio app, such as Pandora. Once a2dp audio starts the Note will no longer connect as a phone device, but it works fine for audio.
I had the phone paired with the stock ATT rom but only used it as a phone, so unfortunately, without a restore to stock, I can't tell if the problem exists with the stock rom.
I flashed to flappjaxxx's rom (which I love) the same day I setup the phone to run Pandora via Bluetooth and that's when I started seeing the problem.
I also see some random connect/reconnects that seem a bit more than usual.
So, I can't say there's a correlation, or if this is a known ICS beta issue or what, but I'm hoping it is and that it's not a design flaw
Way I see it it's either:
1. Flashing to any ICS beta rom has the problem, currently?
2. It's in flappjaxxx's build (doubtful)
3. It's user error...(possible )
4. It's an app issue (ie. Pandora is causing the problem?)
Anyone have any thoughts, suggestions or insights? I've done some searching but haven't found this exact issue yet on any posts.
Thanks!
I have a Kenwood DNX9960 in my Avalanche. It connects also for phone and for streaming media. I can be streaming media from either the stock music player or an internet site like pandora or TuneIn and my calls will automatically come through. When the call ends it goes right back to streaming.
It autoconnects to both as long as my phone is in range when I turn on the kenwood. I did have an issue at first where it would not autoconnect. I deleted the pairing from both my phone and headunit. Then when I repaired I paid close attention to check any boxes to "Always" allow connection and I haven't had any issues since.
I understand the normal pairing process, I've had several phones before that worked fine prior to the Note. So, I'm thinking that it is probably a corrupt bluetooth db... I'm going to be reflashing to Flaps new rom and we'll see how that does
Is there a way to delete the pairing from the nav? I would try that
Sent from my SAMSUNG-SGH-I717 using xda premium
There is. I've tried it all, on both sides of the pairing.
I've reflashed the phone to the B6 from FJ, still no joy. The pairing db was new (so no chance of corruption on the phone) and the pairing deleted on the device.
It seems to be a problem with the phone switching between a2dp and phone bt. When a call comes in (while playing say Pandora over bt) the audio cuts out and then the car shows "disconnected" and then "connection failed" if trying to reconnect to the Note as a phone (ie hitting the phone button in the car).
I'm hoping it's the current ICS build. Just have no way to really know. Hoping some other folks will have seen the same issue.
Going to run some tests with different audio sources and see if the behavior is the same.
Well things seem to be working now, for no obvious reason I'll have to assume that the reflash resolved the issue, I just can't tell for sure why it didn't work immediately after. I think it's due to deleting the old pairing on the car and not shutting down the vehicle.
Cheers.
BT connections
I have similar problem connecting to van audio system (vauxhall). After some experimentation it appears to be an ICS problem, if I reflash my note with gingerbread I have seamless connections for both audio and phone. As soon as I upgrade even with offical ICS bluetooth connections become problematic, I can pair but not autoconnect. Tried samsung and they just "fob off" with it's an incompatable device. Until a bug fix is issued it appears as though it's a choic of staying with gingerbread and have a working system or ICS and no handsfree.

Bluetooth streaming to car stereo problem...

Strange new problem...
I use a bluetooth car stereo, and on my phone I have "Smart AudioBook". Basically what happens it, when I start the engine, the phone and stereo sync automatically and it starts playing my audiobook from where it left off. When I turn the car off, it stops.
This all worked fine when I was using a previous ROM (one of the SuperNexus ones, 4.2.2 I think).
I recently changed my ROM though and upgraded to the CM10.2 jellybean 4.3 rom.... but there was some pretty terrible battery issues, and the bluetooth problem started. (Which ill describe below).
I thought it might be a ROM issue though so I tried SlimBean (another jellybean 4.3 rom) and that fixed the battery problem, but the Bluetooth issue was still there... but I couldnt see ay other references to 4.3 causing bluetooth problems (they were apparently all in 4.2, though I never had an issue before..)
THE PROBLEM:
The book will play normally, for a couple minutes or so, but then suddenly the audio will stop, and the stereo screen will say "paused". But if I look at my phone screen, the audiobook is still running (silently thought). I cannot unpause it using the stereo button.
BUT.. if I actually pause it on the phone screen, THEN I can unpause using the stereo and it will start playing through the car speakers again.
This cant be a problem with the stereo, as nothing has been altered on it. This is clearly an android thing.
I am considering one of the 4.2.2 ROMS to install next, and see if that solves anything, but I was wondering if anyone out there had any thoughts on other ways to fix this?
Thankyou
Bluetooth and cm dont mix. 4.3 is still in early stages. Best bet is custom stock based 4.1.2
This has bin covered alot.
--------------
alliances+siyah

PacMan on SGS2 bluetooth problems

Running Nightly 4.4.2 4/17
1) About 50% of time connecting to any bluetooth device, connection is labelled (no media). I have to disconnect, turn off bluetooth, turn it back on, and reconnect (not sure if all that is necessary, but that's my process). Sometimes I have to do that multiple (up to 6-7 times) to get Connected phone & media. Never had an issue with ShoStock (JB), also had this issue on Render's CM ROM, so assuming this is a KK issue?
2) PacMan, listening to audiobooks (using MortPlayer Audiobooks) in car over bluetooth just fine. Calls comes in over bluetooth just fine. Call ends. Audiobook should resume playing but instead I get (screenshot attached) When this happens, even turning bluetooth off/on doesn't work (bluetooth will say connected but sound will play through phone speaker) - the phone needs to be rebooted.
NePanicPas said:
Running Nightly 4.4.2 4/17
1) About 50% of time connecting to any bluetooth device, connection is labelled (no media). I have to disconnect, turn off bluetooth, turn it back on, and reconnect (not sure if all that is necessary, but that's my process). Sometimes I have to do that multiple (up to 6-7 times) to get Connected phone & media. Never had an issue with ShoStock (JB), also had this issue on Render's CM ROM, so assuming this is a KK issue?
2) PacMan, listening to audiobooks (using MortPlayer Audiobooks) in car over bluetooth just fine. Calls comes in over bluetooth just fine. Call ends. Audiobook should resume playing but instead I get (screenshot attached) When this happens, even turning bluetooth off/on doesn't work (bluetooth will say connected but sound will play through phone speaker) - the phone needs to be rebooted.
Click to expand...
Click to collapse
Correction - this happened again, not listening to any media. Phone idle, received a call, answered it using car's bluetooth. Upon hang-up, bluetooth abended.
Sorry I can't be of any help, as I don't use Bluetooth. Sounds to me like you've diagnosed it pretty well; I would agree it's probably a KK bug. Does it still persist across the newer nightlies?
Maybe it's time to roll back to 4.1.2 - if I remember right even 4.2.2 had BT troubles.
SteveMurphy said:
Sorry I can't be of any help, as I don't use Bluetooth. Sounds to me like you've diagnosed it pretty well; I would agree it's probably a KK bug. Does it still persist across the newer nightlies?
Maybe it's time to roll back to 4.1.2 - if I remember right even 4.2.2 had BT troubles.
Click to expand...
Click to collapse
Tried 5/8 last night and experienced severe audio issues with calls that made my BT troubles pale by comparison. I don't think it's endemic to all KK ROMs as I never had the problem on Render's CM build. Guess I'll try Resurrection. Thanks anyway.

Z2 D6503 Bluetooth Connection Dropping

Hi all,
Having some issues with my z2 bluetooth dropping. Very strange.
I can connect my bluetooth on the z2 to any device without issue ( namely my 2013 Hilux), however, after 40s, my bluetooth will drop, and reconnect withing about 2-3 seconds, and start the cycle again, on and on forever. I am not sure why it does this? It happens when i just leave it connected and do nothing with it, or when i play music too.
The interesting thing is, if i receive a call, i will be able to speak with someone for the first 40s, then the bluetooth will disconnect and reconnect (all in about 2-3) seconds, and after that i will not experience any more bluetooth drops for the entirety of my journey, either through leaving it there connected not doing anything or playing music. Very strange.
Ive tried turning, stamina off, wifi off, nfc off, etc but nothing seems to change it.
Does anyone have any insight on this? Its like the bluetooth on the z2 is requesting something from my other devices, and when it doesnt receive it, shuts off, then as my bluetooth is on and recognizes my paired device is nearby, reconnects straight away. If i get a call as ive mentioned, its like whatever the z2 is looking for it just ignores it and keeps the connection regardless.
Happens to me in my 2014 MB. It's definitely something sony is doing wrong with their Bluetooth. I never had that issue with other phone brands (Samsung, HTC, Moto).
Paperinik68 said:
Happens to me in my 2014 MB. It's definitely something sony is doing wrong with their Bluetooth. I never had that issue with other phone brands (Samsung, HTC, Moto).
Click to expand...
Click to collapse
Ahh so not an isolated case!
I have no issue with my Note 3 or my older HTC One. Its strange. I remember reading something about Bluetooth 4.0 requesting a device descriptor or something descriptor (my bluetooth knowledge is a bit lacking), could it be that thats what its not receiving and hence dropping out? Surely there must be someone on XDA who knows a workaround for this issue.
I have the same issue with 2011 C-Class and Z2 drop out constantly and turn it self off.
The Xperia Z fix seems to have fixed the issue and will auto reconnect, but it is still annoying with the temporary connection drop.
Anyone know if this will be fixed in firmware update?
Ive found that 4.4.2 has alot of base module issues
You will have wait for sony to update to 4.4.3 or 4.4.4 or 5.0
Sent from my D6503 using XDA Premium 4 mobile app
Any idea when the update will be out?
Extremely annoying, even with the Xperia bluetooth fix, the BT fix app will constantly come up with connecting/reconnecting messages.
Almost unusable in the Mercedes...
Mjollnir1983 said:
Any idea when the update will be out?
Extremely annoying, even with the Xperia bluetooth fix, the BT fix app will constantly come up with connecting/reconnecting messages.
Almost unusable in the Mercedes...
Click to expand...
Click to collapse
This month or next month
About 2-5 weeks from now says Sony service centre employees
Sent from my D6503 using XDA Premium 4 mobile app
I turned off the Bluetooth media functions and enable only the telephony features, seems to have stabilized...
I have BT music streaming problem too. Z2 connects to pioneer deh-x9600bt car radio, but the songs keep skipping every now and then. I have tried every possible settings, changed memory card, tested spotify and deezer and problem still exists. HTC phones working without issues in my car, so must be something to do with Sony.
edit: running 4.4.4 existenz currently, but problem has been from the start
any update to this issue? Just bought my Z2 and I am also experiencing this Bluetooth "skipping, jumping, dropouts" every minute or so while listening to my Chevy Volt bluetooth audio. I am on 4.4.4 but am considering downgrading it to 4.4.2, root, and check out other roms to see if problem still persists.
fixed!
found a fix!
1) install this app: https://play.google.com/store/apps/details?id=de.devmil.xperiabluetoothmediafix&hl=en
2) open app, check the BT connection that have stuttering / dropouts
3) restart phone
4) wait for message box to appear momentarily to say "BT XXX reconnected" or something to that effect
5) test it out and....???profit!
update: perhaps I spoke too soon. A week of using the app this BT connection dropouts still appears at random. Rebooting the phone is what usually fixes it. I wonder if the bluetooth stack would fix it...can it be replaced in the phone kernel?
well I did more experiment with it this morning. Little background info: My car has bluetooth audio for phone, stereo, and message. The phone is C6503 with .167 firmware. These are the result to see if it fixes the stuttering:
1) toggleing bluetooth on/off: no
2) toggleing throw (audio cast) on/off: no
3) disable auto throw in throw setting: no
4) restarting phone: yes (but AVRCP would stop working; i.e. can't skip track from car. Also notices option to read text message was gone)
5) delete MAP profile in bluetooth setting: yes (seems to work for the rest of the ride...stay tune)
So if you don't mind not able to have the car read your text, this is the fix.

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