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Pixel's receiver don't work

my pixel's receiver don't work suddenly, but the speaker,headset,bluetooth are working , how to fix it?

I have a dasaita HA2186-MAX6 that doesn't see a Bluetooth device.

So I have a Rockford Fosgate PMX-BTUR(it's a universal steering wheel remote) but my dasaita doesn't see the remote at all, my Oneplus 7 pro does and it connects and works fine. Any idea of how to remedy this?
The remote doesn't have a pin number, just pair it.
I'm running Hal9k rom not sure if this matters
Mcu is 3.40.1
Maybe I have the wrong bt chipset set in settings? I don't get the chipset and how to find if they work or not.

MTCE and BLE modules compatibilty

Hi, I really need my PX5 to support Bluetooth low energy (version 4.0 minimum) so I could receive gps beacons, which use the protocol. Looking at the factory menu in my unit i can see that i have BC5 bluetooth module which is version 2.1 only. Other types i can select are MD725, BC6, BC8, FC6000T and SD-968. From what i managed to figure out, only MD725 and BC8 have the 4.0 protocol, however i can't manage to find module that supports them and fits the module slot in my unit. I did actually find the following item:
https://www.aliexpress.com/item/32974934318.html
It sates both BC8 and I145, which I understand is another module supported bu some units, but not mine. Could someone maybe confirm this one works under BC8 setting? Alternatively, any way to update the bluetooth support in my units to have I145, other than MCU update? because I can't find one for my unit (MTCE_HZA).
Thanks for any help!

Bluetooth functionality for PX30

I got a XTRONS Android 9 PX30 RK3326 MTCE. I'm wondering if there are any ROMs that would work like the Hal9k or Maliysk ROM for instance, that would enable better bluetooth functionality. I am fully able to use the OBD2 TORQUE with Bluetooth (with connection issues after a soft-reboot or going to sleep). I want to also use an RGB controller app to control Bluetooth Rock Lights. However when doing so I cannot find the device no matter what. I am not sure if it is just software (I would assume) that disables this function considering Torque works perfectly and connects to the OBD2. Any feedback would be helpful. I just do not understand (expect software wise) why an RGB app cannot connect to a device but TORQUE can.

External USB dongle on PX5

So, the Bluetooth function in Android Headunits act differently than an Android tablet would, for one, it's a handsfree receiver that does not allow (correct me if I'm wrong) uplink with another device.
I have a DSP amp combo that uses BT to connect to an Android phone/tablet, which works fine, but my Dasaita PX5 won't connect to it. It just sees it, pairs, but doesn't connect.
Is there any way I can use a generic Bluetooth USB dongle to connect to it instead? Or is there any other way to allow connection with other BT devices (I have no luck in connecting OBD dongles too, BT or Wi-FI).
Thanks.

The device isn't an MTCB, being a dasiata it's likely an MTCD.
The answer to the BT question is no, you can thank the developer of the device for the hacked BT implementation.
Requesting mod moves to MTCD general.

Cheers! I've been out of touch for a bit and completely forgotten about the MTCx denominatin,
Thanks.

marchnz said:
The device isn't an MTCB, being a dasiata it's likely an MTCD.
The answer to the BT question is no, you can thank the developer of the device for the hacked BT implementation.
Requesting mod moves to MTCD general.
Click to expand...
Click to collapse
So just to be clear before I go down this path, there is NO external USB bluetooth module that will work with an MTCE head unit? Even if the USB module somehow uses the driver/firmware in the factory settings dropdown?