Database Users

[WORKAROUND] EB13 Bluetooth problems

As being discussed in various threads, some people are having BT problems with EB13 based ROMs.
The Problem
Inability to connect at some future time after having paired device with phone. Rebooting doesn't help. Only solution is to unpair, and re-pair, then device will both pair and connect with phone.
Also seen by some people are audio routing problems after disconnecting BT. Not sure if this is confined to devices that support (and connect) A2DP... more investigation/testing needed.
The Workaround
I tested various conditions to see how the BT subsystem behaved under various usage modes. In particular, across boots, turning BT on and off on the phone, on the device, etc. -- and then observed if automatic connection would re-establish after each combination of conditions.
I found that the problem seems to only happen if I turn off BT on the phone. If I leave it on, pair and connect with a BT device, then I can turn the device on and off at will, and it will automatically connect.
This (normal) function persists across reboots, at least for the few I tested.
I don't know how power-hungry the BT radio is when idle and not connected. My gut feel is that it is a pretty small drain, so leaving BT on all the time as a workaround probably won't have much of an impact on battery drain. I use Juice Plotter, and have a good history with BT off to compare to. I'll post JP measurements/results tomorrow after a 24 hour cycle.
Caveats
I also changed my Epic BT device name before I explored this situation with toggling the BT radio on the phone. While the name change did not correct the problem on its own, I can't rule out that the combination of name change and leaving BT on is what is making things work, rather than just the latter alone. So, to try this workaround, you must also change your BT device name on the phone, and leave BT on. Then, clear pairing and re-pair for the target BT device.
My Request
Would people that are having this problem please try this out, and report back in this thread success/failure, and any other observations. What we see in testing these different modes will be very helpful to the devs in trying to trouble-shoot an fix this problem (which I have no doubt they will long before Samsung does).

It should be noted that some folks are having issue connecting to a device, even after un-pairing and re-pairing. If that is the case, you might try this-
http://forum.xda-developers.com/showpost.php?p=12120496&postcount=1392
Also, some folks are reporting an issue with multiple pin requests before a device will finally pair. I haven't seen that one myself, but just thought I'd mention it.
For what it's worth, other than the BT routing issue, I haven't seen any of these pairing or connection issues on my stock rfs Epic. It wasn't until I converted my other Epic to ext4 that Bluetooth had any issues, and they were all fixed by wiping data and have not returned since.

I have tried the workout around before in the past, and it changed nothing. Also I have noticed I seem to have more issues with particular audio bluetooth ear pieces, like BlueAnt Q2. It will show pairing is connected but after a couple hrs on the bluetooth connection is gone, but like I said it shows paired. My cheaper Plantronic ear pieces seem to work much better, except the fact I have to re-pair after each reboot of the Epic.

Ive tried leaving bluetooth on all the time, but after a reboot,
i have to repair ive tried all suggestions to fix it and the only way it seems is once it gets connected is always have the phone on and cant die and bluetooth always has to be on,
even after a long period of time somehow it loses the connection even if bluetooth is on and phone stays on,
There must be somethng the developers can patch with a flashable fix or another work around to get squash this annoying bug.. ill try to get a logcat today and try your method again see if i have luck

I will try to leave mine on and see what happens. Name change did not help.
But short on time. But given the chance I want to go back to bonsai 3.0.1 and see if I have the same problem. I don't recall it giving me a problem.
Edit: of I leave BT on, on the phone and just turn the BT device on/off it will not pair back up.
Edit: May have figured something out. I have been toggling BT with a widget. When I toggle from the notification bar it seems to work (so far). Which would also explain why it quite working as I added apps. As from clean install is used the notification bar and later used my power widget. But I have always used a widget before. I will test this out at work and see if this work around keeps working for me.
Sent from my SPH-D700 using XDA Premium App

I have to re-enter the PIN after every reboot. Mildly annoying.

Having tried the various bluetooth fixes given in different posts, I am now just leaving bluetooth on as described in the workaround above. I have left it on for a couple of days now and have had no trouble whatsoever with my headsets (both regular and stereo/A2DP). They connect as they should and do not require re-pairing. Even if I reboot my phone they have been connecting back up without issue. The only thing I cannot do is manually toggle bluetooth off and back on or the devices need pairing again.
I initially was worried about battery life by leaving BT on, but so far I have not seen any major difference... is the bluetooth radio only consuming power if a device is connected?
I still hope a permanent fix can be found for this as it makes me feel like my phone is "broken" somewhat
BTW, I am running EB13 with CWM 3.0.0.6, Bonsai 3.0.1, and Emotionless Beast theme

automator said:
Having tried the various bluetooth fixes given in different posts, I am now just leaving bluetooth on as described in the workaround above. I have left it on for a couple of days now and have had no trouble whatsoever with my headsets (both regular and stereo/A2DP). They connect as they should and do not require re-pairing. Even if I reboot my phone they have been connecting back up without issue. The only thing I cannot do is manually toggle bluetooth off and back on or the devices need pairing again.
I initially was worried about battery life by leaving BT on, but so far I have not seen any major difference... is the bluetooth radio only consuming power if a device is connected?
I still hope a permanent fix can be found for this as it makes me feel like my phone is "broken" somewhat
BTW, I am running EB13 with CWM 3.0.0.6, Bonsai 3.0.1, and Emotionless Beast theme
Click to expand...
Click to collapse
In my experience, the BT radio does not use any power when not connected to a device. If it does, it's not noticeable in Spare Parts or in performance.

I fixed my connection problem by doing a wipe and fresh install of my current rom. Now my bt is working perfect. Just make sure not to recover your date from nandroid that may cause u to recover what ever was causing the bt problem just restore your apps only my back up or appbrain.
Sent from my SPH-D700 using XDA Premium App

blackdragon79 said:
I fixed my connection problem by doing a wipe and fresh install of my current rom. Now my bt is working perfect. Just make sure not to recover your date from nandroid that may cause u to recover what ever was causing the bt problem just restore your apps only my back up or appbrain.
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
What rom are you running?
Also did anyone by wiping data all data, confirm that on bonsai rom fix the non connecting issue?

Have the pairing issue with ACS EB13 Frozen ROM 1.0.3/ Twilight kernel. The BT headset I use is Plantronics 975. Never had a problem with any of my phones until now... even my Treo 755 connected properly, not to mention BB Tour FWIW, my headset supports A2DP and I wiped/reflashed ROM/kernel several times without resolving the BT issue. Will leave BT on, but does it mean after every reboot I have to re-pair? That's not good if true, I hope a permanent fix can be found soon.

davidrules7778 said:
What rom are you running?
Also did anyone by wiping data all data, confirm that on bonsai rom fix the non connecting issue?
Click to expand...
Click to collapse
I'm using syndicate frozen
Sent from my SPH-D700 using XDA Premium App

Update: For me at least, this workaround is still working 3 days later without a hitch, and across more reboots than I can count.
While I don't _know_ with tech/spec/engr certainty, as mentioned above it seems that BT uses negligible power when it is only listening for connection requests, and has had no discernible impact on battery drain at all.
So, this seems to be a viable workaround for the time being for some of us... it's real. What we need to work on as a community is figuring out what the critical difference is between those for which it works, and those for which it doesn't. KEEP POSTING AS MUCH DETAIL AND INFO IN THIS THREAD AS YOU CAN, EVERYONE... DATA IS WHAT WILL GET US TO THE BOTTOM OF THIS.
Personally, I think the key difference between the two groups is the size of your junk -- People with small equipment seem to be having all the failures
Sent from my mind using telepathitalk

I've had this issue on all Froyo builds. I have tried 7 different BT headsets from Samsmsung, Plantronics, Jabra & Blue Ant, all of them a2dp compliant with the same result, after a while, they stop connecting and I have to re-pair. As for the "workaround" since I have several extended batteries I've never turned BT off, and while it does take much longer to lose pairing, it eventually stops syncing or syncs only the headset protocol but not A2dp. For myself, the only solution I've found is to go back to DI18 which, although has its faults, works flawlessly with BT

I have been trying to get my brother's Epic working properly. It is rooted with EB13 installed. If this bluetooth error is not related to what others are having, let me know and I will create a different thread. I got his motorola H520 paired. I press the button and it starts the bluetooth voice dialing. It beeps and says please speak and then immediately gives and error saying the connection to the bluetooth was lost but the settings shows it to still be conneceted and it is as you can answer calls with the bluetooth without having to reconnect it.

My plantronics backbeat is paired and for phone calls is working, but sometimes no audio through music or video players. I had to un-pair, then re-pair then audio will work for a while.
I am using CWM 3.0.0.6 with midnight ROM with its installed kernal

Happening on my Plantronics Voyager Pro+ - It seems that everytime I pick up my phone the BT disconnects and then after about 15 to 30 seconds reconnects as long as I don't push any buttons.
There is also a lag "thingy" that occurs when I'm on a call and then another person calls - while the the second call is coming in, it seems like the packets get interrupted from the handset to the headset. Then once the incomming call goes to VM, the audio from the current call gets restored. Not sure if this is helpful or not, but I wonder if there are some routines in the BT transmission that have common "hooks" which are used when a second call comes in - Hope that is not too much of a noob statement...
Is anybody else having that "laggy" issue in the same circumstances?

Wifi issue

Hello,
I recently noticed an issue with my wifi (stock 2.3.3), where an app that needs to update regularly didn't seem to be doing it when the screen was off. As the phone always sits on its dock when I'm at home, I "solved" the issue by making the screen never turn off.
However, today I decided to give SIPdroid another go, as I tested it when I first got my phone and it wasn't working properly. I found out why, the second I put the phone to my ear, the screen turns off and the sound cuts. If I take the phone away, I suddenly get all the audio high speed as it catches back up.
A bit of googling showed this to be a known issue, the wifi goes into power saving mode when the screen turns off - on SIPdroid there's an option to keep the screen off and it seems to work well, it just dims the screen instead. But that's still an unnecessary battery drain.
I had trouble finding any recent info on the issue (within the past 6 months), maybe I was just using the wrong keywords. So I thought I'd ask here. Does anyone know anything about this issue? Is it likely to be fixed in the next version of android if it ever comes to the desire HD? Maybe there's a fix out there already (preferably without rooting and/or installing custom rom, my phone is just right as it is now...).

Settings>Wireless & Networks>Wifi settings>Hit 'Menu'>Advanced>Wifi sleep policy>Never
That'll prevent the wifi turning off when the screen turns off.
Sent from my Desire HD using xda premium

I tried that before posting, it makes no difference whatsoever (besides, the sleep policy is either never or 15 minutes, this problem occurs the second the screen goes off).

If u re root: change radio... try anyone.
stock: mmm default reset to try. (i think)

No:
http://code.google.com/p/sipdroid/issues/detail?id=268
http://code.google.com/p/sipdroid/i...Status Priority Milestone Owner Summary Stars
Reading through the comments, it seems a more general android problem. A reset wouldn't fix it.
Also:
http://code.google.com/p/android/issues/detail?id=9781

Temporary fix to Bluetooth issues?

So... searched pretty much a month now for a solution, so don't flame me if I missed it ..
About 2 months with OPT, and pretty much a working phone on Oxygen 2.1.2 but it is unparallel to my OPO when it comes to OS with Cyanogen, in terms of beauty and speed. Yes, my OPO with less power under the hood works better than my OPT.
Tries Exodus ROM (CM12.1) and it is the one I like, but.. my BT doing all sort of funny stuff.. It turn itself off (symbol disappears from top of the phone) at random times. Events that kill BT are a phone call, deep sleep, and probably other events.
Rebooting the phone fixes it for up to 10 minutes. But obviously I am not going to boot the phone every time I need to use BT. I have a Moto 360 , a car audio , a headset, and a radar detector in the car connecting to my phone over BT. So pretty much I need BT on and up all day long...
What I discovered is if I clear data from Bluetooth share (setting->apps->all-> Bluetooth Share) my BT comes alive for a while again, so something in CM12.1 is messing it up. Obviously , I can't clear data every 10 minutes either... Not manually, anyways..
Just think every time I am getting to the car i need to clear data to hook the phone to the car. As soon as I do, the connection will stay on until I am done driving... and then drops again when BT in the car turns of, in few minutes. Really annoying.
The main problem is the Moto 360. It became a useless smart watch without the BT on the phone. Running it on wi-fi just kills the watch's battery, so that is not an option either...
Anyone else is in the same situation, or better, found a work around ? Somehow i can't seem to find anyone else with this issue.
Thanks,
BigE

Yes I have the same BT problem on my op2 with OOS 2.1.2 in car.
Nearly unusable audio (only phone function connects), audio (if it sometime works) don't stop during incoming call, phone book is not probably synced...
Impossible to fix it on my own! Oneplus must do that.
I hope with marshmallow will something fixed.
Regards Peterle

Bluetooth on 8.1 official.

I think the 8.1 is a great update with everything flying along. I have one little annoyance though: my Bluetooth speaker is fine playing something (which is the main thing) but after I switch it on and before I start playing anything on the phone, it keeps bleeping that it has disconnected then reconnects again a few seconds later. My smartwatch is doing the same thing: vibrating that it has disconnected then reconnects again a few seconds later. Bit annoying & never experienced this before update. Anyone got any ideas what could be causing that?

Have you tried going into Developer Mode and Changing Bluetooth versions? There are several choices!

No I haven't. I'll try that thank you. Do you know what version it was before? Worked perfectly for me. Cheers.

dwj said:
I think the 8.1 is a great update with everything flying along. I have one little annoyance though: my Bluetooth speaker is fine playing something (which is the main thing) but after I switch it on and before I start playing anything on the phone, it keeps bleeping that it has disconnected then reconnects again a few seconds later. My smartwatch is doing the same thing: vibrating that it has disconnected then reconnects again a few seconds later. Bit annoying & never experienced this before update. Anyone got any ideas what could be causing that?
Click to expand...
Click to collapse
I'm experiencing something similar to what you're describing. When I connect my AirPods they keep on playing the connected sound, as though they're reconnecting over and over.

Well, I tried changing the Bluetooth version (AVRCP whatever that means!) and I've only tried it once this morning but so far so good and it hasn't been connecting/disconnecting at all. I changed it from 1.4 to 1.6 just by guesswork but thanks to poster who suggested that.
As I said, only day 1 but I'll report if anything changes.
On another topic, I use a Garmin sports watch which has smartphone features. It works absolutely perfectly all the time while showing up in the phone's bluetooth settings as being permanently disconnected.?

wow this fixed my BT issues!!!
Audio/Video Remote Control Profile (or AVRCP)

February update is out

Seems that we may have that memory leak solved

Yes, must have bug fix as 330Mb download. Updated, all good (no mods)

Is the haptic feedback on opening recents menu new? Or just stronger than before?
Is there a setting I'm not seeing to change it?

GandalfTehGray said:
Is the haptic feedback on opening recents menu new? Or just stronger than before?
Is there a setting I'm not seeing to change it?
Click to expand...
Click to collapse
it's in
accessibility>vibration

I received my phone and downloaded the ROM yesterday, seems to be good.

Anyone else's Bluetooth totally screwed up after update? After update, Bluetooth turns on by itself, won't add new devices, and won't auto connect to devices?

svrasputin said:
Anyone else's Bluetooth totally screwed up after update? After update, Bluetooth turns on by itself, won't add new devices, and won't auto connect to devices?
Click to expand...
Click to collapse
Mine has been pretty flaky as well. It seems to connect most of the time, but if I call with my android auto head unit, even though it says it's using bluetooth, the sound still comes out of the speakers. Sometimes a toggle of the bluetooth switch fixes it, sometimes it needs a reboot. I may factory reset and see if it clears up.

svrasputin said:
Anyone else's Bluetooth totally screwed up after update? After update, Bluetooth turns on by itself, won't add new devices, and won't auto connect to devices?
Click to expand...
Click to collapse
I don't have problem with the Bluetooth.
Using my Sony ch700n without a problem..

Mmm... I'll be waiting for more feedback before applying the update. Hope it's just specific issue with device because I use BT every day...

Still haven't been able to fix Bluetooth issues. First I reset all the network settings. Not fixed. Then I factory reset without restore. No fix. Finally factory reset with restore. No fix. Contacted support last night with no answer yet. Will have to resort to back up phone until there is a solution.

svrasputin said:
Anyone else's Bluetooth totally screwed up after update? After update, Bluetooth turns on by itself, won't add new devices, and won't auto connect to devices?
Click to expand...
Click to collapse
Nope, all good here. How did you take the update, ota or fastboot?

At this point my Bluetooth is behaving normally. All though I never have had any of the previous Bluetooth or wifi issues people have posted about. Totally stock locked bootloader with February update.

As of this Monday Miracast on my PH-1 is totally flakey. Since it uses Bluetooth I guess this is part of the update bug. The problem I'm getting is casting crapping out, for no reason, rotating the phone, or just launching the app that I want to cast. Any possible fixes?

bfmetcalf said:
Mine has been pretty flaky as well. It seems to connect most of the time, but if I call with my android auto head unit, even though it says it's using bluetooth, the sound still comes out of the speakers. Sometimes a toggle of the bluetooth switch fixes it, sometimes it needs a reboot. I may factory reset and see if it clears up.
Click to expand...
Click to collapse
I can't get my PH1 to connect via BT to my Pioneer A.A H/U at all...... not sure what the issue is.

I factory reset and still having issues as well, I'm completely stock with locked bootloader. Only real Bluetooth issue I have is phone calls going through my phone speakers even though it says it's using Bluetooth, audio for music and podcasts is fine. Very strange

bfmetcalf said:
I factory reset and still having issues as well, I'm completely stock with locked bootloader. Only real Bluetooth issue I have is phone calls going through my phone speakers even though it says it's using Bluetooth, audio for music and podcasts is fine. Very strange
Click to expand...
Click to collapse
I used AA this morning in wifes car, music was playing, made a phone call & it used car speakers as normal & then went back to music when call ended, so seems OK with Hyundai HU.

IronRoo said:
I used AA this morning in wifes cam, music was playing, made a phone call & it used car speakers as normal & then went back to music when call ended, so seems OK with Hyundai HU.
Click to expand...
Click to collapse
I'm kind of wondering if it has something to do with my Wear OS watch being connected. May have to disable it for a day and see if it makes a difference. Worked perfectly before the update though.
Edit: I played a little. If I turn off Bluetooth on my watch, then pair with my Bluetooth headphones calls work normally, if I connect to the buds while connected to the watch, no-go. Very odd as well is that the watch won't connect then while connected to the buds, once I disconnect them, it connects fine. I'll try with my truck at lunch and see if I can repeat this there.

mine seems do not have the Bluetooth issue.
new update seem to be more aggressive on turning off nfc . in the past, i do not have to wake on phone to 'tap' (as a smart card) on chargepoint ev charger. now i have to at least wake up phone to do so.

i noticed on essential website. the OTA file for February is only Open Market. the others have said Alll. Whats the difference anyone know.

After I have installing the update patch, the usage of battery is a bit faster than before. The sot drop from 4 hours to 2 and a half hours. Is there getting The same issue?