S9+ Exynos media volume sync stopped working - Samsung Galaxy S9+ Questions & Answers

Dear Community!
Today my GS9+ Exynos stopped supporting my BeatsX wireless earbuds. Suddenly the music volume dropped but on the phone it was the same value i used to listen to. The problem is that the media volume sync stopped working. It says, my bluetooth device is not supported. But it was as you can guess. I have rebooted the phone, cleared the cache, cleared the bluetooth app data, reconnected the headphones, reset the headphones, turned on/off absolute maximum volume in developers settings, tried another app, but it wont sync the volume of the bluetooth device with my phone. Its loud, and perfect as it was but i wanna control the volume on the phone, with the buttons on the earbuds.
I really hope that you can help me.
Edit: I have solved the issue. Connect an other device that supports media volume sync. Turn the option off, then reconnect with the device that wont sync. When the device is connected to the phone, turn the option back again. It will let you change it now and it will work as well.

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I have a Verizon s4 running 4.3 (all ota updates, nothing custom), my bluetooth connectivity seems to have suddenly gone...awry. When I connect any bluetooth headset (I have tried with multiple) the phone will register it connecting to phone and media controls. I have it set to automatically start music playback when this occurs, and while this worked before, it spontaneously changed. Instead of playing through the headset, music now plays through the earpiece speaker and the volume buttons control phone audio rather than media (note, audio will still be transmitted out through a jack, but again the buttons will not control media volume). The headsets themselves are fully functional as they still control call functions and voice search, but no longer toggle audio, let alone control playback. This effect continues even after the headset disconnects until the phone is rebooted.
The only thing I can think of having caused this is that I recently downloaded the pebble companion app (I wanted to test it out to see what its like before I decided to buy the thing or not), and the issue started after that. I uninstalled the app and rebooted/removed battery, but still the same issue. Is there any way to fix this other than a full system reboot? I'd really rather avoid that if I can help it.
I appreciate any feedback on this issue, thanks in advance!
I have exactly the same problem, I thought I was crazy or did something stupid! I thought it had to do with my root modifications until I completely wiped it out with an odin restore and redid only the root and SuperSU and it still had the issue. I used to have it stream bluetooth audio to my car and for some reason it once I started playing music and I thought it was really quiet even for my phone speaker until I noticed it coming out of the earpiece as well. I've run out of ideas as far as fixing it at this point though I'm still trying things.

Bluetooth media audio stops working after toggling Bluetooth

I've spent a lot of time on this, and it's driving me nuts.
I've got a Verizon LG G3, stock ROM (6.0 Marshmallow), up to date.
I'm pairing it to my 2017 Honda Civic with display audio. I'm pretty sure that end isn't the issue, because it works with all other Bluetooth devices.
I can pair to the car just fine. It'll work across start/stopping the car, etc. However, any time I toggle Bluetooth on my phone (turn it off, turn it back on), the media audio sync will stop working entirely. The call audio continues to pair and work, but they won't pair with the media audio profile. The phone only shows "Call Audio" as an option in the Bluetooth settings for the car device, and the car shows that the phone only has call audio.
The only thing I've found that works is to unpair completely (both car and phone), turn off Bluetooth on the phone, go into Application Manager -> Bluetooth, and clear all data and the cache. Then I turn on Bluetooth, and can pair with my car perfectly fine until the next time I turn off Bluetooth.
Oddly enough, this worked fine for a couple of weeks - I had an app (Sony Smart Connect) that would toggle Bluetooth on when connected to power, and off when disconnected. That way, I didn't have to drain my phone battery by having BT on all the time. I've since uninstalled that app while troubleshooting, but it'd be really awesome to be able to use it again.
So, what could be causing this? Are there other troubleshooting steps I can try? I'm definitely willing to spend some time messing around. If I can't figure out anything else, my next step is to wipe and restore the phone. (Obviously, I'd like to avoid that if possible).
Any thoughts?

Bluetooth call volume low in car.

I cant seem to turn up the in call volume past 15, it always reverts back. I was able to fix it once by unpairing it then re-pairing, but that only lasted until I reconnected. Had the same issue with my S8.
My equalizer in the settings is set to normal.
Headunit: DDX774BH
No other devices connected to phone or headunit.
If this is a bluetooth connection,
From settings, do a search for bluetooth.
Try changing the Disable Absolute Volume option
also, from the Settings, bluetooth, 3dots, try changing the Media volume sync option
Ugh, same problem for me with a Kenwood HU. No solution yet, including the one mentioned above.

Bluetooth issues, music pausing and switching to speaker

i've been having issues with my Mate 10 Pro, in combination with both my Bose QC30 and my Bose SoundSport. i heard from someone else who has the same problem, but with a set of Jaybird X3's.
I don't think the problem comes from the QC30 or SoundSport, as they work fine with my pc (desktop pc with bluetooth dongle)
Issue 1:
I pause my music, with the headset, use the fingerprint sensor to unlock my phone and use some app. I close the app, press the power button to turn off the display and press play again on my headset. Music will play for x seconds, mostly about 5 seconds or so and then stops.
Sometimes it will start playing again after some time, but when i unlock the screen with the fingerprint scanner, it start playing immediately
Remedy (most of the time) is switching headset off and on.
Issue 2:
Listening to music through bluetooth, suddenly sound switches to the speaker on my phone. In the status bar, it shows bluetooth is still connected and it actually is, as the controls on the headset still function. But somehow the media output has switched to speaker.
Remedy is same as issue 1.
Both issues happen occasionally, sometimes don't have them for an entire week, so it's pretty hard to reproduce.
I have tried:
-reinstalled Spotify
-unpairing the headset
-deinstall Bose+ app and pair headset manually
I'm using Spotify to listen to music, Spotify has been set to manual battery management, so has the Bose+ app.
Only other thing i could do is a factory reset, but i can't imagine that will fix the problem.
Anyone else experience any of these issues?
Remedy?
I wonder if the 8.1 update (when and if they release it) would solve these issues

Low bluetooth volume on MI A1

Hi,
yesterday somehow while listening to music using bluetooth headphones I recieved a call and after the call ended, volume of headphones lowered A LOT.
Used devices:
Xiaomi MI A1, android version 8.1.0
Bluetooth headphones Bluedio T6 - there are not any volume control buttons. Volume is managed by broadcasting device.
Problem description: Even though I have bluetooth media volume at 100% in mobile phone, the sound coming out of bluetooth headphones is way too quiet.
How did it happen?: I had headphones connected simultaneously to MI A1 and Win10 PC. I listened to music through Win10. Suddenly I had an incoming call - input switched automatically from Win10 to MI A1. I've accepted that call and switched the output from headphones to earspeaker (switched in MI A1). After closing the call, I continued listening to music from Win10. Later, after I started listening to media from MI A1 I could not get the volume to previous level - it is way too quiet. When connected to Win10, volume is completely OK - so it seems like to be just problem with mobile phone.
Most ridiculous thing is, that if I use the heaphones to have a call and adjust the volume of bluetooth call to maximum it is really loud - how it should be. Same goes for notifications. Basically just media is really quiet even tough having the volume set to maximum.
What I already tried
Factory reset
Unpair/pair
Enable/disable absolute volume
Other version of AVRCP
Other bluetooth headphones - seems ok, but they have their own volume control and I have no idea how they sounded like before, so I canĀ“t be sure if there is difference or not.
Basically nearly same problem was being discussed here (URL should be here, but as a new XDA user I am not allowed to send link - so if you google: "Bluetooth Audio too low... but Notification sounds over bluetooth are loud." it is first link.) but without the conclusion.
Thank you for any responses.

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