[LOS][RR][GZR] Bluetooth Fix for Existing ROMs

[shadeau]

I am not responsible for bricked devices, dead SD cards,
thermonuclear war, or you getting fired because the alarm app failed. Please
do some research if you have any concerns about features included in this ROM
before flashing it! YOU are choosing to make these modifications, and if
you point the finger at me for messing up your device, I will laugh at you. 
A lot.

ROMs with Bluetooth Fix!

For several years I have been frustrated with CM and LOS being unable to connect to my car. To compound this, most custom ROMs are based on these ROMs and use the same BT stack making it nearly impossible to find a custom ROM that works with my vehicle. I had assumed that it was hardware driver related until I found that it happened with the Oneplus 3T as well. I was beginning to lose hope.

But thankfully, it turns out that AOSPA uses a different BT stack that actually works with my car, so I spent several weeks researching ROM building and was finally able to build my favorite ROMs with AOSPA's BT stack! I have made a flashable zip using a bluetooth file found in the stock ROM to fix the issues I've been having. The zip is below. If you have a different device and would like this fix feel free to pm me to make a zip or just follow the instructions in post 2 for how to apply the fix in TWRP without a zip.

Disclaimers:
-I only have a Oneplus 3T, not a 3. This zip should work on both, but keep this in mind.
-This will only fix the issues you're having if the ROM you're taking the file from has Bluetooth that works.

BT Fix v1.2

XDA:DevDB Information
[LOS][RR][GZR] Bluetooth Fix for Existing ROMs, ROM for the OnePlus 3

Contributors
shadeau, TheCrazyLex, Thecrazyskull, arter97, xboxfanj, chrislahaye, carlosavignano, arzbhatia, scoobyjenkins, martinusbe, otisman, akhilnarang, varund7726, westcrip
ROM OS Version: 7.x Nougat
ROM Kernel: Linux 3.x
ROM Firmware Required: OOS 4.1.6 or later
Based On: AOSP, LineageOS

Version Information
Status: Stable
Current Stable Version: 1.2
Stable Release Date: 2017-09-20

Created 2017-06-21
Last Updated 2017-11-21

 

[shadeau]

Manual Bluetooth File Replacement Instructions
1) Install the ROM with working bluetooth on your device in TWRP
2) While in TWRP (no need to boot) mount the /system folder
3) Using the file manager navigate to /system/lib/hw, select the bluetooth.default.so file, and tap copy
4) Paste this file somewhere in the base /sdcard directory where it won't be deleted when you factory reset
5) Install your favorite ROM with everything like you normally would/restore it from a backup
6) Mount /system in TWRP again (if it became unchecked or you rebooted)
7) Use the file manager to locate the bluetooth.default.so file that you just placed in your internal memory
8) Copy the file and paste it in /system/lib/hw
9) Reboot and test by connecting to device
10) Enjoy!

 

[shadeau]

Troubleshooting

The flashable zip basically does three things:
1) mounts system partition
2) copies modified bluetooth file to system partition
3) unmounts system partition
4) performs update script like all zips

The zip assumes that your system partition is in the normal location (for a 3T) and formatted in ext4 for my script to work. If you have issues then try manually mounting the system partition with TWRP before flashing the zip.

 

[shadeau]

Reserved2

 

[jbw716]

Thank you!!! I can't wait to try this! I've had this exact issue! Should the Validus version work with all CAF based ROMs?

Edit: Nevermind. I misunderstood what this was. Still, thank you very much! I cannot wait to try it still!

 

[shadeau]

Thank you!!! I can't wait to try this! I've had this exact issue! Should the Validus version work with all CAF based ROMs?

I've built full ROM zips, so you'll need to do a clean install of the ROM that you prefer and you should be good to go. Hope that helps.

 

[benzaldo]

Superbbbbbb Thanks, waiting for this fixing for a long time. BT with gear s.3 WORK. Please be keep update.

BTW RR Roms from your file why option in notification slider in additional buttons are difference from the link thread

 

[plepew]

Hey this sounds pretty interesting. Bluetooth with my car has been hit or miss since and throughout Android 5, 6 and 7!! They fix, they break, they fix and break it again. I have an OP3.

Understanding that it different in everyone's case on device, car and OS's, but this Bluetooth issue seems to be a pain in *** fors some and that includes me.

So I'm now on OOS 4.0.3, Android 7.0.0 and it works, partially. I can't update to any OOS as I lose metadata, AVRCP and additional BT features connections with my vehicle (Lexus IS 250 F Sport 2015).

I had BJRR, Android 6 on my device and it was all working with no issue. If I was on Stock OS, it connect and plays the sound, but no meta or AVRCP no matter what I tried.

I'm rooted, running TWRP and wondering how this will work out. Sounds very promising and looking forward to hearing some feedback from others it is works.

I am wondering if this will work with GZR's Tesla as well.

Cheers!

 

[shadeau]

Hey this sounds pretty interesting. Bluetooth with my car has been hit or miss since and throughout Android 5, 6 and 7!! They fix, they break, they fix and break it again. I have an OP3.

Understanding that it different in everyone's case on device, car and OS's, but this Bluetooth issue seems to be a pain in *** fors some and that includes me.

So I'm now on OOS 4.0.3, Android 7.0.0 and it works, partially. I can't update to any OOS as I lose metadata, AVRCP and additional BT features connections with my vehicle (Lexus IS 250 F Sport 2015).

I had BJRR, Android 6 on my device and it was all working with no issue. If I was on Stock OS, it connect and plays the sound, but no meta or AVRCP no matter what I tried.

I'm rooted, running TWRP and wondering how this will work out. Sounds very promising and looking forward to hearing some feedback from others it is works.

I am wondering if this will work with GZR's Tesla as well.

Cheers!

I wish you luck in testing it on your car, and as far as GZR's Tesla is concerned: I'd have to build the whole ROM with the BT fix as a separate ROM (these are all full ROM zips) and I probably won't get around to that for a while. I'm sure the fix will work though. I just need to figure out if this is something that can be converted to a flashable zip instead of needing to build the ROM.

 

[plepew]

I wish you luck in testing it on your car, and as far as GZR's Tesla is concerned: I'd have to build the whole ROM with the BT fix as a separate ROM (these are all full ROM zips) and I probably won't get around to that for a while. I'm sure the fix will work though. I just need to figure out if this is something that can be converted to a flashable zip instead of needing to build the ROM.

Yes, a flashable zip would be the way to go if possible.

I will try Validus on the weekend and report back if I have success... I've installed in in the past and it's nice. But prefer Tesla due to some features.

Thanks for the quick response!

Cheers!!

 

[silentvisitor]

I just need to figure out if this is something that can be converted to a flashable zip instead of needing to build the ROM.

Should be doable unless framework is involved.

 

[shadeau]

Should be doable unless framework is involved.

I need to change out files in the system/bt folder and the vendor/qcom/bluetooth folder (edit: both of these are in the working directory before building in case that wasn't clear). Are those framework files? I'm kind of new at this and would appreciate help learning how to create a flashable zip if you have some article/forums I can read. Thanks!

 

[jbw716]

Would you be open to posting your sources for these builds?

 

[jbw716]

Strange. It seems that with your version of LOS, the bug is now reversed for me. I get Phone audio through my car now, but not media audio. The radio acts as though it is getting sound, showing the playback time and track name, but the audio comes out of the phone speaker. I'm not sure if a log would help with this sort of thing, but I can try to get one later if it would be helpful.

 

[The_Fry_Guy]

Excellent job brother! I too have the same issue with my 2015 Nissan Altima. I honestly have no idea why the makers of these roms don't just use this BT stack...... OOS has no issues with my car, so why don't they all use OOS BT? Just makes no sense to me lol

 

[shadeau]

Would you be open to posting your sources for these builds?

I'm totally open to that. But I need to figure it how to post to git first .

Strange. It seems that with your version of LOS, the bug is now reversed for me. I get Phone audio through my car now, but not media audio. The radio acts as though it is getting sound, showing the playback time and track name, but the audio comes out of the phone speaker. I'm not sure if a log would help with this sort of thing, but I can try to get one later if it would be helpful.

It might be helpful so post it here and I can look at it. I'll see if I have the same issues in my car and report back.

 

[silentvisitor]

I need to change out files in the system/bt folder and the vendor/qcom/bluetooth folder (edit: both of these are in the working directory before building in case that wasn't clear). Are those framework files? I'm kind of new at this and would appreciate help learning how to create a flashable zip if you have some article/forums I can read. Thanks!

No framework seemingly.
Which files you're changing (names)?
In most probabilities they're residing in /system/lib and/or /system/bin folder. If so, than you could just make a simple flashable zip or a Magisk module (that'll be a better learning experience).

 

[jbw716]

I'm totally open to that. But I need to figure it how to post to git first .



It might be helpful so post it here and I can look at it. I'll see if I have the same issues in my car and report back.

Here you go. I hope it helps!

https://drive.google.com/file/d/0B22KzlQ3gJRaMHhNbGVDd29JMXM/view?usp=drivesdk

 

[shadeau]

No framework seemingly.
Which files you're changing (names)?
In most probabilities they're residing in /system/lib and/or /system/bin folder. If so, than you could just make a simple flashable zip or a Magisk module (that'll be a better learning experience).

Honestly, I swapped the entire folder for each of the two I mentioned. I wanted to get something that worked first and then figure I could sort out the exact file to blame later. I also need to look into the media audio problem since I have the same issue. Thanks for the suggestion, I'll look into building a module for the required files. That should be less time between iterations as well.

 

[silentvisitor]

Honestly, I swapped the entire folder for each of the two I mentioned. I wanted to get something that worked first and then figure I could sort out the exact file to blame later. I also need to look into the media audio problem since I have the same issue. Thanks for the suggestion, I'll look into building a module for the required files. That should be less time between iterations as well.

Search for "bt" and "bluetooth" in both folders and you'll get list of files. Now extract those files, make a flashable zip and test with some other ROM