Battery Drain after connecting to FSE from BMW - Xperia Z1 Compact Q&A, Help & Troubleshooting

My z1c has a hugh battery drain with KK 4.4.2 after i connected the z1c to my BMW via bluetooth. Even if i leave the car the bluetooth stack is very active - the process StartingObexMapTransaction and the android.bluetooth are eating up my battery. if i simply switch of bluetooth and after a few seconds on again (after leaving the car) everything is fine but if i do nothing after leaving the car the z1c looses 15% battery each hour without using it...
does anyone has the same problem? is the problem a kk 4.4.2 problem that could be solved by downgrading to 4.3?

morphisto said:
My z1c has a hugh battery drain with KK 4.4.2 after i connected the z1c to my BMW via bluetooth. Even if i leave the car the bluetooth stack is very active - the process StartingObexMapTransaction and the android.bluetooth are eating up my battery. if i simply switch of bluetooth and after a few seconds on again (after leaving the car) everything is fine but if i do nothing after leaving the car the z1c looses 15% battery each hour without using it...
does anyone has the same problem? is the problem a kk 4.4.2 problem that could be solved by downgrading to 4.3?
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Same issue here with Ford SYNC, http://forum.xda-developers.com/showthread.php?t=2722415
It seems the issue occurs also when use with Toyota TG as reported on other forum..
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No issues with the built-in Bluetooth of my Citroen C3.

blue_quartz said:
No issues with the built-in Bluetooth of my Citroen C3.
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Does your Citroen C3's built-in Bluetooth support text messaging (Bluetooth MAP)?
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ykkhern said:
Does your Citroen C3's built-in Bluetooth support text messaging (Bluetooth MAP)?
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Aha nope, my car only accesses the address book, no text messaging feature.

blue_quartz said:
Aha nope, my car only accesses the address book, no text messaging feature.
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Just as I thought, I guess Bluetooth MAP is causing the issue....
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Temporary workaround here, post#5 in the following link:
http://talk.sonymobile.com/t5/Xperi...eps-phone-awake-even-after/m-p/669607#U669607
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Related

[Q]A2DP on CM 10.

I'm curious as to how to set up bluetooth audio. My car supports it (Jetta TDI 2010). When I connect with bluetooth I can't seem to figure out how to use it. This is my first android phone and I've never used bluetooth audio before.
Just looking to be pointed in the right direction. Google hasn't been too helpful.
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No one?
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I believe cm10 has ad2p, I know AOKP does.
Must be the diesel, lol.
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patmann03 said:
I'm curious as to how to set up bluetooth audio. My car supports it (Jetta TDI 2010). When I connect with bluetooth I can't seem to figure out how to use it. This is my first android phone and I've never used bluetooth audio before.
Just looking to be pointed in the right direction. Google hasn't been too helpful.
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I'm not sure I understand what your problem is?
You can't figure out how to use bluetooth in what way, exactly?
CZ Eddie said:
I'm not sure I understand what your problem is?
You can't figure out how to use bluetooth in what way, exactly?
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When my phone is connected to my car via bluetooth, I cannot get the phone to stream audio, nor can I get the car to recognize that the phone has A2DP capabilities (I know my car works, I have the bluetooh audio connection and my friend used it with his droid)
I'm just not sure if I'm missing some small important piece to get the audio streaming.
patmann03 said:
When my phone is connected to my car via bluetooth, I cannot get the phone to stream audio, nor can I get the car to recognize that the phone has A2DP capabilities (I know my car works, I have the bluetooh audio connection and my friend used it with his droid)
I'm just not sure if I'm missing some small important piece to get the audio streaming.
Click to expand...
Click to collapse
So the phone call bluetooth works but not the music bluetooth?
Go into the bluetooth settings for your phone. And make sure both checkmarks are checked, one for phone and one for audio. You'll do this by editing the bluetooth connection to your car.

[Q] Bluetooth disconnecting from car

i have a ford fusion...thats the first problem. the second problem is pairing the device via sync, every time i get in the car i have to re-pair regardless if the bluetooth was toggled on or off.
i am aware that this is not an isolated issue, has anyone else experienced this on their GN2 and/or found a solution?
I was under the impression that Ford addressed this issue with an update to ford sync that the dealership can do
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Anyway to force bluetooth metadata to send to my car?

I have a brand new 2015 Hyundai Sonata, and my girlfriends Galaxy S5 can send metadata and track info to my stereo no problem (using google play music). My new Galaxy Note 4. refuses to send the track info... I've tried using the AutoAudio app which will allegedly fix the problem, but that didn't help. I also tried using Poweramp and the stock music player as well, hoping that something would work, and nothing does. However, my dash unit and steering wheel can CONTROL the phone, just not display what it's doing.. So it appear AVRCP is working but not bluetooth metadata.
It's such a minor thing, but it's driving me nuts. Any ideas?
Bump -- I also noticed the sound quality over bluetooth (for the same files) is way worse with my Note 4.
I get the same problem on my 2012 Mazda 3. My understanding is it's a problem with Bluetooth 4.1 compatibility. It makes no sense as it is supposed to be backwards compatible, but it's pretty regularly reported that many car stereos aren't fully compatible with the latest Bluetooth spec and this is the result. Bothers me too. If anyone is able to get it working, please share. I'm certainly interested in a solution.
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cgalyon said:
I get the same problem on my 2012 Mazda 3. My understanding is it's a problem with Bluetooth 4.1 compatibility. It makes no sense as it is supposed to be backwards compatible, but it's pretty regularly reported that many car stereos aren't fully compatible with the latest Bluetooth spec and this is the result. Bothers me too. If anyone is able to get it working, please share. I'm certainly interested in a solution.
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Click to expand...
Click to collapse
So Hyundai themselves actually called me and said that my headunit is running some really old Bluetooth stack... So old that the new version of bluetooth isn't that far backwards compatible.. It will play audio, but at a lower quality and without metadata.. They said the headunit software manufacturer (MNSoft) might have a firmware update, but they generally only do those for nav systems.
bandit614 said:
So Hyundai themselves actually called me and said that my headunit is running some really old Bluetooth stack... So old that the new version of bluetooth isn't that far backwards compatible.. It will play audio, but at a lower quality and without metadata.. They said the headunit software manufacturer (MNSoft) might have a firmware update, but they generally only do those for nav systems.
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I googled MNSoft and what showed up for me was the mapping software that Hyundai uses. Would that really have to do with Bluetooth and metadata? I have a 2013 elantra with nav. I get no metadata on my screen either. Sound quality is great though since mine does come with the upgraded sound system.
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2011 mazdaspeed with nav here. Same results. Haven't called for update
Last I heard from Mazda, they can't (or won't) update the software. They consider it done. I find that aggravating as cars should last longer than phones and the radio isn't easy to change out
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Earphone splitter and bluetooth

Hi,
I have read a lot that the lg g4 has the feature of being able to send audio both on a Bluetooth device and the wired earphones simultaneously.
Now I own one and whenever I wire the earphones my Bluetooth goes disconnected and viceversa...
Just one audio steam at a time...
Any ideas why?
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When I add wired while bluetooth connected I get an option to play through both. I don't think I did anything to make this happen.
G4
Not here, I get no message at all and automatically the sound of the bluetooth device is cut off and viceversa...
Could that be the variant? I have the LG-H815AR variant...
Hi,
Just to say that I had an update yesterday and now I can do the splitter thing. Great feature!!!
Hi Leoneldolara - Is it possible for you share "LG G4 'earphone splitter'" APK ?. I intend to use "Zungle Smart Sunglasses" along with "Basslet" simultaneously.
So i need this APK ..
Thanks
I'm sorry I didn't notice this message before! I don't know if that is an app, but if it is, I just can not find it!
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BT Internet theathering

Enyone suceeded in enabling Internet via Bluetooth? (enable BT theathering on phone, pairing HU with phone and enabling HU to use phone Internet connection - that way no need for USB modem in HU if you have internet on phone and you take your phone with you in car as we do most of the time).
I was trying to enable that with my LG G3 phone but it doesn't work.
(I'm using Malaysk ROM, KGL unit type)
Any hints appreciated.
Hi, I just switched on "hotspot" in my Moto G menu then switched on WiFi on Headunit then they just paired up, hope this helps.
Bill.
bilnick said:
Hi, I just switched on "hotspot" in my Moto G menu then switched on WiFi on Headunit then they just paired up, hope this helps.
Bill.
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Thank you but that is different thing. I wish to use BT specifically.
pa.ko said:
I wish to use BT specifically.
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Try this app (there is a trial version to test with):
https://play.google.com/store/apps/details?id=com.bluedunx
I haven't tested that app myself as I use a USB 3G dongle.
themissionimpossible said:
Try this app (there is a trial version to test with):
https://play.google.com/store/apps/details?id=com.bluedunx
I haven't tested that app myself as I use a USB 3G dongle.
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Not working
I searched around and it looks like bug in Android 4.4.4 preventing BT theathering to work (in fact it works but apps cannot use that connection).
Anyone found workaround?

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