Bluetooth connections disappearing after connect/disconnect - G3 Q&A, Help & Troubleshooting

So I'm running cloudy G3 on my D850, but this doesnt seem to be specific to that ROM, since nobody else has reported it.
My issue is that once I connect to my car radio, it connects and works perfectly, but once I turn the car off and it disconnects, the saved bluetooth connection disappears and I'll have to go through the pairing process all over again. Anybody have issues similar to this? I know the bluetooth stack in 5.0 is buggy and I'm sure its related to that.

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[Q] Mildwild 5.0 - Bluetooth issue

I'm using Mildwild 5.0 as daily ROM. I noticed that even though bluetooth is on, the phone does not connect to the remote audio device.
The pairing process is successful, however the connection is not automatic.
I need to manually connect the phone to the device using the Wireless settings menu.
Did anybody notice the same behavior?
aaf107 said:
I'm using Mildwild 5.0 as daily ROM. I noticed that even though bluetooth is on, the phone does not connect to the remote audio device.
The pairing process is successful, however the connection is not automatic.
I need to manually connect the phone to the device using the Wireless settings menu.
Did anybody notice the same behavior?
Click to expand...
Click to collapse
It doesn't happen to me. I have a bluetooth headset, and it alwaya connects to it.
abaaaabbbb63 said:
It doesn't happen to me. I have a bluetooth headset, and it alwaya connects to it.
Click to expand...
Click to collapse
i have the same issue, i could not transfer photos to another device through bluetooth, haven't checked a handsfree because i don't have one, but there is a bluetooth issue
I had used this ROM for couple days and I don't have this issue. Maybe try with MV 14.
aaf107 said:
I'm using Mildwild 5.0 as daily ROM. I noticed that even though bluetooth is on, the phone does not connect to the remote audio device.
The pairing process is successful, however the connection is not automatic.
I need to manually connect the phone to the device using the Wireless settings menu.
Did anybody notice the same behavior?
Click to expand...
Click to collapse
I had a similar problem with this ROM and my car's audio/phone system. I suspect the problem was on the side of my car's bluetooth, because after erasing the link on car's side, I was able to setup it again, successfully.
bruno.unna said:
I had a similar problem with this ROM and my car's audio/phone system. I suspect the problem was on the side of my car's bluetooth, because after erasing the link on car's side, I was able to setup it again, successfully.
Click to expand...
Click to collapse
I'm still experiencing the same issue with MW 14.
My car kit is most probably a BT 1.1 device.
Here's the relevant logcat information
Code:
E/BluetoothEventLoop.cpp(167): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/1081/hci0/dev_00_14_09_13_51_33

LG G3 bluetooth problem with older car

Hi,
I tried connecting my bluetooth with my car (2003, bmw e46), the pairing works, but it keeps disconnecting and I can't receive any calls thru my car.
From what I've read, there is an issue with the bluetooth stack that was changed in android 4.2? Can I patch/edit it somehow so it can work?
Found a similar guide here (for the same car), but didn't manage to make the edits.
http://forum.xda-developers.com/android/help/qa-lollipop-bmw-e46-carkit-bluetooth-t3045523
Finally managed to apply the fix in the url above and works perfectly.

Bluetooth issues with car stereo

Hello there. I've been experiencing a problem with my OP3, regarding the BT connection to my car stereo.
I recently bought a new head unit for my car, a Pioneer MVH-X580BT unit, it Works fine. However, when i connect my phone to it, it allows me to playback áudio, but i won't allow me to use it for hands-free calling. The Bluetooth menu on the phone says "MVH-X580BT - Connected (no phone)". It happens with any CM-based rom that i've tried so far.
However, when i install a stock rom (Oxygen OS, Freedom OS also works), it works just fine, both audio and phone mode.
Is there something in custom roms that changes some sort of parameters in the ROM that makes the phone refuse a phone mode connection from the radio?
Any tips i can use?
Thanks!
logcat of the incident:
Here.
Hope it helps.
I've had the same problems. It's an issue with the LOS BT stack. I've created several unofficial versions of my favorite ROMs using a different BT stack that fixes this problem for me. Let me know if they work.

Automatic bluetooth connection with HFP

Hello, I have some problems with the bluetooth connection to my Seat Leon (2016). Pairing worked fine but once I return to my car only the A2DP profile gets connected. In the car menu media control is working correctly but the phone part is shown as disconnected. The bluetooth connection state in the phone settings shows "connected (no phone)" then.
To fix this I have to manually disconnect and reconnect bluetooth on the phone - afterwards everything is working as expected. This is very annoying though and I had no such issues with my previous Nexus 6P (stock 8.1).
Any suggestions? If there is no solution I try to fix this with tasker, however I'd clearly prefer a "native" solution.
Thanks in advance.
Seems like it's working with the app Bluetooth Auto Connect, will test it more intensively in the next days. But I'm still wondering why it's not working out of the box...

Frustrated with bluetooth problems with Oneplus 3

Hello,
I am frustrated with Oneplus 3 bluetooth issues. It often has trouble connecting to newer devices and connects sporadically. Right now it connects to my car radio and disconnects automatically after sometime. I can see in the car radio settings the bluetooth going from connected to paired to connected again. It also had a lot of trouble connecting to heart rate monitors. Is there a way to see bluetooth logs in a way that it can be easily understood what is going on with the bluetooth connections in lineage os. I understand that there is a bluetooth HCI snoop log but that is pretty difficult to understand.

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