N910U Bluetooth malfunction - Galaxy Note 4 Q&A, Help & Troubleshooting

Hey guys,
So I have a Note 4 N910U and I have been using a custom note 5 rom for a long time without any major problems. Lately my Bluetooth stopped working, basically it turns on but as soon as I try to connect to any Bluetooth device it stops working. When I connect to my gear for instance, the gear connects and so does the phone but I have a force close message and when I press ok the Bluetooth turns off and on.
I am still using lollipop 5.1.1 I want to upgrade but I don't know if that would fix the problem or not.
Any insights on this problem?
Thanks.

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[Q] Omnirom N7100 Bluetooth problem

Hi,
I have installed omnirom 4.4.4 for my Samsung note 2 (N7100) and had no issues with the rom except for the Bluetooth Connectivity.I am able to connect to Bluetooth device or send any file to other devices through bluetooth but the problem is if I place any hard surface between the devices my note 2 stops responding to the bluetooth connections like pauses sending the files till the device is in direct contact with the other device.
Hope i am clear with the problem. Requesting for a resolution on it.
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Any ROM/KERNEL/RADIO/Combo that will guarantee stable WiFi and Bluetooth?

I've been using Nexus 4 for 4 years now and only last year I began to need bluetooth in it for BT Keyboard and a mouse. That's when I discovered problems with this phone.
Using bluetooth and Wifi at the same time was impossible - WiFi would disconnect and I'd have to reconnect it manually each time - so I used a WiFi watchdog-reconnecter app for that, but still it was really annoying and caused few seconds internet outage each minute.
Then few months ago I've started using a smartwatch with smart notifications via bluetooth - and Nexus had problems with pairing and then with keeping the connection with the watch - it would randomly disconnect or I'd have to reboot the phone to try and connect the watch again. Watch automatically scans for the phone and tries to autoconnect to it - but Nexus is so terrible at it. I've tested the watch with other smartphones and none had these issues - all was flawless.
These problems all occured for me on all ROMs I've used with Android 4.4+ and I've tried stocks, EuphoriaOS, Chroma, PureNexus and now DirtyUnicorns. If I remember well, I had better bluetooth times with Chroma, but that I'll have to test again to make sure.
So guys here are my questions:
1. Do you know if Nexus 4 WiFi/Bluetooth problems were ever finally solved with a patch?
2. If you can relate your position to mine (using a smartwatch or something else that needs to reconnect to the phone automatically) then do you have these problems? If not, which ROM are you using and which kernel?
3. I've read that kernels don't matter in bluetooth and that it's mostly ROM based issue? Is that true, or maybe a specific kernel helps for these problems?
I'm using bluetooth to play music.
In the past I've had issues with audio cutting out over bluetooth on the official firmware. At some point it got fixed but I cannot remember when exactly.
Right now I am using PureNexus 6.0.1-20160311 and the audio problems came back.
That's all I can say but I did have a reliable ROM in the past.
Edit : I just installed the latest CM13 snapshot (2016-04-29) with Hellspawn r12 and Bluetooth audio stopped skipping.
I'm on the Resurrection Remix ROM, with no problems but I only use Bluetooth for the occasional file transfer.

Wifi and Bluetooth not working

Hi,
I've got a s4 from ebay that was working fine but now the wifi and bluetooth wont turn on - I've reflash back to stock through Kies but it still not working - does this sound more like a hardware problem?

Bluetooth crashes on NOUGAT VNS-L31C0432B370

Hi there, after the update i have always troubles with bluetooth.
When the device is connected to my samsung gear s3, randomly i get crashes and have to turn on blueooth again.
When the device tries to connect with my car, i got bluetooth crash and even if i turn on it again it crash.
I have done factory reset and network reset but they don't solve the problem. I have also reflashed the rom with the additional package.
Any ideas? Anybody with the same problem?

Bluetooth pairing issues on 7.x

Hi all,
Since upgrading to Android 7.x, I've had problems connecting my phone to other Bluetooth devices, particularly my car heading it for hands-free. The headunit in one car works fine, the other car keeps connecting and disconnecting after about 1-2seconds in a continual loop. Before 7.x it was connecting fine. Even now my phone makes the notification sound of connecting when I'm in that car even when I choose 'forget this device' on both hu and phone, only way to stop the notifications is to turn bt off.
I've googled​ and found it's quite a common issue, but yet to find a solution. I joined the beta program and update everytime but yet to fix it.
My question is, will this problem be fixed if I install a custom rom like PureNexus or is it a flaw in 7.x affecting every rom? If that is the case, is it possible to downgrade to 6.x? I really want to be able to connect to my hu with hands free again, it's been months now with no luck!
Sent from my Nexus 6P using Tapatalk
glenb83 said:
Hi all,
Since upgrading to Android 7.x, I've had problems connecting my phone to other Bluetooth devices, particularly my car heading it for hands-free. The headunit in one car works fine, the other car keeps connecting and disconnecting after about 1-2seconds in a continual loop. Before 7.x it was connecting fine. Even now my phone makes the notification sound of connecting when I'm in that car even when I choose 'forget this device' on both hu and phone, only way to stop the notifications is to turn bt off.
I've googled​ and found it's quite a common issue, but yet to find a solution. I joined the beta program and update everytime but yet to fix it.
My question is, will this problem be fixed if I install a custom rom like PureNexus or is it a flaw in 7.x affecting every rom? If that is the case, is it possible to downgrade to 6.x? I really want to be able to connect to my hu with hands free again, it's been months now with no luck!
Click to expand...
Click to collapse
Hello,
Backup your data's and try to factory reset.
You can install a custom ROM, but I guess it doesn't fix drivers issues which are closed sources.
Otherwise you can downgrade to a 6.x stock firmware.
Option 1 and 3 needs you to unlock your bootloader. Backup important datas, unlocking bootloader wipe all datas!
Good luck...
glenb83 said:
Hi all,
Since upgrading to Android 7.x, I've had problems connecting my phone to other Bluetooth devices, particularly my car heading it for hands-free. The headunit in one car works fine, the other car keeps connecting and disconnecting after about 1-2seconds in a continual loop. Before 7.x it was connecting fine. Even now my phone makes the notification sound of connecting when I'm in that car even when I choose 'forget this device' on both hu and phone, only way to stop the notifications is to turn bt off.
I've googled​ and found it's quite a common issue, but yet to find a solution. I joined the beta program and update everytime but yet to fix it.
My question is, will this problem be fixed if I install a custom rom like PureNexus or is it a flaw in 7.x affecting every rom? If that is the case, is it possible to downgrade to 6.x? I really want to be able to connect to my hu with hands free again, it's been months now with no luck!
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
I suggest you fully wipe your phone and install the May Google image (N2G47O). There was a major BT rework introduced with 7.1.2 that fixed an issue just as you describe. I went 5-6 months without being able to connect with one of my cars (2014 Cadillac). When the 7.1.2 beta came out I did a fresh install and it immediately fixed the problem. BT has worked flawlessly since.
glenb83 said:
Hi all,
Since upgrading to Android 7.x, I've had problems connecting my phone to other Bluetooth devices, particularly my car heading it for hands-free. The headunit in one car works fine, the other car keeps connecting and disconnecting after about 1-2seconds in a continual loop. Before 7.x it was connecting fine. Even now my phone makes the notification sound of connecting when I'm in that car even when I choose 'forget this device' on both hu and phone, only way to stop the notifications is to turn bt off.
I've googled​ and found it's quite a common issue, but yet to find a solution. I joined the beta program and update everytime but yet to fix it.
My question is, will this problem be fixed if I install a custom rom like PureNexus or is it a flaw in 7.x affecting every rom? If that is the case, is it possible to downgrade to 6.x? I really want to be able to connect to my hu with hands free again, it's been months now with no luck!
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
You need a completely clean 7.1.2 install.
There is a setting somewhere (I don't know where) left over from previous OS version or app.
My phone was doing the exact same thing with my BMW, and only my BMW.
Clean install of 7.1.2 fixed the issue for me.
I wiped my 6P today hoping it would resolve my BT issues with my 2015 Toyota Highlander. No such luck, it still boots my Toyota in an endless loop until I disable the BT on the phone. The car works fine on my Samsung S3.
What is the process to do a Clean install of 7.1.2?

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