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[BLUETOOTH] Help! Bluetooth is severely buggy!

Okay, so first things first:
My device is running OOS 3.5.4 and is rooted.
The issue I'm facing is that when I connect my 3T to my car (Hyundai Verna 2016 if it's necessary) via Bluetooth, the phone starts spazzing out and lagging like crazy until I switch off the Bluetooth. Also, when I try to play music from Spotify, it plays but no audio is heard from the car's system. I am 100% sure it's not my car's fault because my other phone (Asus Zenfone 5) connected just fine and played music from Spotify with ease. I'm extremely clueless as in what could cause this issue. Can my fellow XDA buddies help me out on this one? Any help is greatly appreciated!

Comment to resurface this post.

why aren't you running the latest version of oxygen os? 4.1.3?

You say you are using OxygenOS 3.5.4 and you are rooted. This makes me believe you are doing it because 6.0 is more "mod friendly", and you are probably using Xposed and/or Viper.
VIPER4ANDROID is known to cause the exact same behavior that you mentioned. Probably easiest to flash a custom ROM with it already built in like Freedom OS or Audax.

Update your ROM
You need to be running an updated version of OOS. There have been many fixes and improvements to Bluetooth connection and reliability and I haven't had any of the issues you describe. Below is the list of Bluetooth connections I make on a weekly basis and I haven't had any problems running OOS 4.1.1 and 4.1.3:
1. VW car stereo (phone and audio streaming)
2. Nissan car stereo (phone only)
3. Panasonic home phone system
4. Plantronics Voyager Bluetooth headset
5. Dell laptop computer (data transfer)
6. Sony portable speaker

Bluetooth Crashing

I'm having Bluetooth problems on my N6. They began around the time of 7.1.1, like everyone else, but a repeated BT crash is ongoing. Searching it looks like other discussions indicate the known BT problems were fixed in the March update, but I am hoping I have missed something. Bone stock N7, running 7.1.1 with the June 5 security patch.
I have reinstalled from the April 7.1.1 system image, disabled Instant Tethering, and disabled power management on the BT apps.
- I use BT a lot: media, phone calls, and so on, at least a couple of hours a day; I also have an LG Watch Urbane (AW2.0), and a Moto 360 before it.
- I had the same issues as everyone else in February, with the shutdowns and so on. I had not noticed BT issues before that.
- I relocked the bootloader in April, with the accompanying reset and system reimage.
Ever since February, BT has reset at random. This will happen occasionally, as often as 3x in 20 minutes:
- BT icon will indicate disabled
- any BT media/call will stop
- watch will indicate disconnect.
- Calls usually transfer to the earpiece, after a couple seconds of silence.
- 3-5 seconds later, BT indicates enabled
- devices all reconnect
- call transfers back to BT headset, most of the time.
This does not only happen when I am actively using BT for audio - if I'm driving with media paused it will suddenly start playing, suggesting that the phone has disconnected and reconnected in the background. I have not tried completely disabling BT in the car, since I do sometimes need to take calls while driving.
I'd love to be able to change a setting to fix the problem, but if someone can confirm they don't have these problems with a custom kernel and/or firmware I'd be interested in knowing that too. Thanks for any suggestions/pointers/advice!

I've not been stock since early 2015 I'm running Pure Nexus without any 3rd party kernel. I use BT non-stop without trouble. The last time I remember having any BT issues (actually similar to what you're describing) was in 2016 when I was using a AOSPA based ROM.

tdcrone said:
I'm having Bluetooth problems on my N6.
... don't have these problems with a custom kernel and/or firmware I'd be interested in knowing that too!
Click to expand...
Click to collapse
Stock 7.1.1. June update. Rooted, unencrypted. No bt issues.
In the play store there's an app to fix Bluetooth issues on rooted devices.

I'm on SiX ROM + Blackbird Kernel + Magisk. Paired with a Huawei watch, and frequently use Bluetooth audio with my car stereo, Jaybird X2 headphones, and Anker portable speaker with no issue.

Nokia 8 Bluetooth unusable with Airpods. Anyone else?

Just to open with this - I really like this phone and have been enjoying using it. Aside from the fairly poor WiFi range and the flaky NFC it is otherwise a really nice phone. There's just one other issue I have which is extremely frustrating:
I can't use it with my Airpods. Or at least, I can connect it but at some point the sound will crackle and cut off. If I wait it will occasionally crackle and come back on again but will cut in and out in a way that would drive anyone mad. I've tried fiddling with Bluetooth settings in developer options but it doesn't seem to make any difference. I've even tried a factory reset.
The Airpods work absolutely perfectly with every other device - no issues with the iPhone (expectedly) nor the S8, G6 or even my laptop. I can't 100% rule out a fault with the Airpods but given these facts it seems highly unlikely.
I wondered if anyone else used Airpods and had experienced issues and found a solution.
Not too interested if you've had no issues with your device, nor what you think of Airpods - I just want to see if I can get to the bottom of this, or the Nokia will have to go back.
Many thanks

Similar problem
Got a similar problem with my apt-x receiver.
Every few minutes the connection drops for a very short time.
The airpods don't support apt-x, but maybe it's the same problem.
My receiver shows a connection via apt-x, , but you can't find any apt-x support in the Nokia 8 specs.
But I had no problems with a friends portable speaker (non-apt-x).
I went back to cables

damian101 said:
Got a similar problem with my apt-x receiver.
Every few minutes the connection drops for a very short time.
The airpods don't support apt-x, but maybe it's the same problem.
My receiver shows a connection via apt-x, , but you can't find any apt-x support in the Nokia 8 specs.
But I had no problems with a friends portable speaker (non-apt-x).
I went back to cables
Click to expand...
Click to collapse
I’m wondering if the Nokia 8 just has rubbish connectivity, generally. If the Bluetooth chip is part of the WiFi chip then this would figure as it has the worst WiFi connectivity I’ve seen in recent years

Are you running Nougat or Oreo? From what I've heard, a lot of the bluetooth issues have been fixed in Oreo.

leoni1980 said:
Just to open with this - I really like this phone and have been enjoying using it. Aside from the fairly poor WiFi range and the flaky NFC it is otherwise a really nice phone. There's just one other issue I have which is extremely frustrating:
I can't use it with my Airpods. Or at least, I can connect it but at some point the sound will crackle and cut off. If I wait it will occasionally crackle and come back on again but will cut in and out in a way that would drive anyone mad. I've tried fiddling with Bluetooth settings in developer options but it doesn't seem to make any difference. I've even tried a factory reset.
The Airpods work absolutely perfectly with every other device - no issues with the iPhone (expectedly) nor the S8, G6 or even my laptop. I can't 100% rule out a fault with the Airpods but given these facts it seems highly unlikely.
I wondered if anyone else used Airpods and had experienced issues and found a solution.
Not too interested if you've had no issues with your device, nor what you think of Airpods - I just want to see if I can get to the bottom of this, or the Nokia will have to go back.
Many thanks
Click to expand...
Click to collapse
I wonder if yours is wonky, my Wi-Fi is excellent and i get get 75Mbit down 19Mbit up over 5Ghz through 2 brick walls, a floor up and at the opposite end of the house, i have not missed any payments using contactless via NFC and Bluetooth works fine via an Anker Bluetooth speaker and my JBL Bluetooth headphones.

Sorry for digging an old thread, but I still have the same problem even after a bunch of software updates.
My issue with the AirPods is that they do not work after they connect. I take them out of the case, they connect (as expected), but as soon as I start playing something the music/video pauses and the sound switches to speaker (if I press play again it plays out loud). To make them work I need to go to bluetooth settings, disconnect them and connect them again. Then they will work almost flawlessy (minor intrerruption from time to time).
I have no issue with other BT speakers. I also use the AirPods with an iPad and laptop and no issues there.
My Nokia 8 software is up to date. AirPods firmware the same (checked on the iPad).
I tried re-pairing after each software update. I tried changin BT settings (absolute volume - dev settings; contact sharing and HD Audio: AAC) but no improvements.
Any ideas what else can I try?

Search for Oreo and Bluetooth problems. It seams to be a general issue for this Android Version. I have problems connecting my Phone with the car, too.

Problem with BeatsX bluetooth headphones A2DP since Oreo update

So I got a pair of BeatsX bluetooth headphones at a significant discount and while the battery life sucks, the size factor is worth it. The problem is that since the update to Oreo, they won't play audio unless I turn Bluetooth off and back on, AFTER they're connected.
ISSUE:
Power on
Bluetooth connects
Works for calls but no A2DP audio
Have to switch bluetooth off
Switch bluetooth back on
Bluetooth device list pops-up
Select BeatsX, tap 'done'
BeatsX connect with full functionality
As you can see, this is really annoying for a device that dies so quickly. It wasn't an issue with Nougat, but I haven't been able to find any fixes, let alone info specific to this problem with Oreo. People have had bluetooth issues in general, but this is literally the only issue I've had, and I have several bluetooth headsets that all work fine. Is Apple just screwing with me?
I have an SM-N950UI on 8.0.0 official BB N950U1UEU3CRC1 with build R16NW on an At&t

unpair them if not already done and repair.
you might want to rest factory/full wipe and if all else fails flash full stock if that dosent work since from what i gather you updated( OTA?)

[Q] Random bluetooth issue, any input would be appreciated!

Hey guys, Merry Christmas!
Out of the blue as I was riding my bike somewhere with GPS on and Bluetooth connected to my speaker everything was going fine.
I got where I supposed to be, the connection was fine and all.
When I wanted to return though, the Bluetooth speaker just wouldn't connect.
I tried turning both the speaker and the phone on and off but nothing changed.
Messed a bit with the developer settings but again nothing changed.
Tried to connect to a few more speakers I have and none connected.
My BFF has the same device and his device connects just fine to my speakers, my device just refuses.
It does *technincally* connect but it says Connected (no media), which is obviously useless in my case because the audio players from the phone's speakers and not the external ones.
For some weird reason, it does connect and play though to my car's Bluetooth. (Seat Ibiza 2020 MY not as it matters)
I changed a few roms and one weird thing I noticed when I was running POSP I think was in the dev options, Bluetooth mode, everything was greyed out besides default.
That's pretty weird if you ask me, I mean SBC AAC and some others *should* be available right?
So my concern is I'm facing a firmware/hardware issue, unfortunately, maybe some persist.img problem?
I ended up flashing with mi flash tool the latest miui 12 europe and global roms without luck, and now I'm in the middle of flashing the Chinese one just in case.
Has anything similar happened to you?
How did you fix it?
I cannot for the life of me find a solution and think about giving up and sending it for repair.

Well after trying lots of roms and whatnot (I even went back to MIUI 10, Android 9) I found out that If I try to connect with my speakers as the first device it won't connect, if I connect to my car or my Airdots and then try to connect to my speakers then it does indeed connect.
I cannot comprehend why this behaviour exists, but at least it is persistent if I don't reboot and I only need to this on the first pairing.
I guess problem solved...?
(it should be able to connect normally, but that workaround is good enough I guess)