Bluetooth fix - Joying update available for 4.4 - one speaker - MTCB Android Head Units General

I was on the Joying website and saw this post:
https://www.carjoying.com/Joying-blog/12.html
Date: 2016-03-28 These android 4.4.4 kitat system firmware fixed the Joying bluetooth(Only front speakers have sound) and other problem.
Has anyone tried this one? I have a Joying MTCD, Android 5.1, so I can't try it. But on my Joying, when on a bluetooth call sound only comes from one speaker. To me this update reads like it fixes it?
Can anyone confirm this?
Edit to add - I know the update says it is from March, but the blog post was updated yesterday, so I dont know if this is new or not -
"Posted on Sep 18 ,2016"

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Radio not working

Hi
I have problem with my head unit the radio not working (no sound)
Note : music and USB port also video sound working very well (only radio no sound)
MCU VERSION:
MTCD_KGL_V1.40_1
ANDROID VERSION:
5.1.1
KERNEL VERSION:
3.0.101+
BUILD NUMBER:
RK3188
1- I make reset my hide unit
2-I try to change radio band to euro channel from factory settings (126)password
3-I open head unit to check radio model it ok
4-I check antenna it working ok
Can any one help my. pls
before radio working good suddenly not working
I'm facing a similar issue. GPS, Music, Poweramp are working properly and the sound is really great, but the radio app has no sound. I can receive a lot of stations and store them (RDS is working), but unfortunately the radio is still silent (no sound at all).
I've recorded a small video to explain the vendor what the problem is, but till now without success.
youtu.be / sJLUlUOtmgM
This HeadUnit has an Extra setting but without menu to pick the correct radio chip.
my MCU is 5.3.18-62-61-940201-151120 and the System Version 4.5.9_20160322. Android is 4.4.2.
I'm not allowed to post links. For more information on my headunit search for bluemarmot.ekibox.net / node / 112

Bluetooth issue with ALL new car music receivers, older ones are fine

PROBLEM SOLVED. Need Android 6
Question: Did any of you have bluetooth issues and how did you fix it?
My music skips a beat when I bluetooth connect it to my new head unit in my car (Kenwood KMM-BT502DAB)
Turns out that I have this issue with all new car units, like Pioneer MVH-X580DAB, JVC KD-DB97BTE, Kenwood KMM-BT502DAB etc.
Older models do work! Pioneer DEH-X8700DAB works and has bluetooth 3.0
Maybe the newer models have bluetooth 4.0?
I am still investigating.
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i have a built in head unit running on kitkat 4.4.2 in a brand new kia sportage 2017 model. I connected my phone to the head unit over bluetooth but it is impossible to see the title of the songs or any metadata playing. i called the manufacturer which had no idea and just gave me the explanation "this is like that" . I tried to install other music players (like poweramp) same problem.
the MCU verison is MTCB-HZC v2.95
jul 13 2016
Android version 4.4.4.23052016
This above is the model i have
It looks like the manufacturer has locked android ad2p bluetooth on purpose (for what reasons??).
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Hello.
I have a erisin es3062b navigation for my bmw e46, with original android 5.1.1
DVR kamera on recording muting sound from sd , usb and navigation. Work`s only radio.
i spoke with erisin support , and they have no solution for my problem.
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Can someoane help me ?
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Nobdy ?
I had the exact same issue with my kld. Plug the dashcam in all sound muted except radio. Unplug the dashcam sound comes back. The only way I found to stop it was update the firmware and mcu.
I had an old mcu with stock firmware
And now is working? Can anyone help please for a update , or a malaysk software. Please
What I have
Julian93 said:
And now is working? Can anyone help please for a update , or a malaysk software. Please
Click to expand...
Click to collapse
Yup, working great now.
What mcu you have?
I maked the update. Now is working

What MCU works with my Android Head Unit

Hello, I want to update the MCU as I have problems with Bluetooth and Audio. I have not found an MCU with the same name in my HU. Please help me.
Android : 20180612.161538
MCU : 80 ST MAR 30 2018 KSb1 7786 7719 DVD-C8
APP : RK3_C18_B0001_HTS2018-06-13
Youre in the wrong forum, you dont have an MTCD/E unit - theres no "MTCD" or "MTCE" in front of your MCU number.
Same unit
Bro did you find something about your android head unit? I have the same and i am looking on how to upgrade ng version
May you guide me to the correct thread sir

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