Bluetooth Phone Profile in Nougat roms

[alterbang]

Hey guys,
I have an annoying problem that prevents me to switch from TS CM13 to any newer roms.
I've tried RR, HnT LOS14, Cozzmy's LOS14 and last night even the newest TS LOS14.1

Every nougat rom doesn't work with the bluetooth phone profile on my Citroen DS4.
(The car's multimedia system is already at the last version)
Even stranger, bluetooth pairing works without any issue and media streaming profile works too. Only the phone profile says "there was a problem, try to reconnect".

Does any of you uses in-car BT with nougat roms? And maybe has a PSA group car?
Is there anything i can do? Even rebuilding kernel with legacy bt it's ok, if you give me some hints i can do it
Because on marshmallow roms everything works smoothly.

Thanks!

 

[nioonline]

Try latest stable rom from miglobe and use DX mod (you ll find it here on xda). Its miui reinvinted
(everything work great cause its the official rom from xiaomi but its debloated and there is no thermal issues.Battery is real good too)

-dont know if it works with your car but if the official rom doesnt i think noone else will-

 

[alterbang]

Thanks @nioonline. The problem is i will have to do the whole bootloader upgrade & downgrade again... but you're right, i guess the official rom it's the only way to be sure.