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Eonon Android 4.4.4 head unit - BUZZING MICROPHONE!

Hi just received an "EONON" android head unit that I bought on ebay.
It is the KLD RK3188 Android 4.4.4 version with no DVD player.
The unit is great, except for one major issue. The microphone is useless, both the internal and external mic produce very loud continuous buzzing both in phone calls and in Android apps.
I saw some others had some issues similar to this on other units, but I have not seen anyone mention this on this specific one.
Does anyone know of a fix for this?
I have tried a usb mic, but I can't get the device to use it as default.
Any advice would be appreciated!!

Its not an Eonon, they are just re-sellers, its a Klyde unit, they are all the same basic unit apart from screen size and front design and whether they are dual or quad core, read the main HuiFei thread, specifically the first page for a solution to the problem (You DONT want to use a USB mic as it probably contains a sound card so ALL Android sound will be diverted to it).

Solved
typos1 said:
Its not an Eonon, they are just re-sellers, its a Klyde unit, they are all the same basic unit apart from screen size and front design and whether they are dual or quad core, read the main HuiFei thread, specifically the first page for a solution to the problem (You DONT want to use a USB mic as it probably contains a sound card so ALL Android sound will be diverted to it).
Click to expand...
Click to collapse
Thanks for the tip.
I actually was able to fix it by following that solution. I removed capacitor C32 and connected an external mic directly to the bluetooth module.
Phone calls are great now, Android is still using the internal mic with the crappy audio, but it seems like it would be difficult to fix and it works at least well enough for some basic voice commands which is all I need.

Hi
Burnaby BC, is your unit KLD ?
if so can you explain what you did ?
I understand that you have to remove capacitor C32 but what I don't understand is how did you do the second part(connect external mic directly to the BT module.)
thanks

rooot_999 said:
Hi
Burnaby BC, is your unit KLD ?
if so can you explain what you did ?
I understand that you have to remove capacitor C32 but what I don't understand is how did you do the second part(connect external mic directly to the BT module.)
thanks
Click to expand...
Click to collapse
Yes my unit is a Klyde (KLD) unit.
Look at C32, it should be next to the bluetooth module (unfortunately I don't have a picture).
Follow the trace that connects C32 to the input on the bluetooth module.
Once you remove C32, connect the microphone positive lead (+) to that input.
Then connect the microphone ground/negative (-) lead to ground or a case screw.
This will fix the bluetooth phone call audio.

smcw said:
Yes my unit is a Klyde (KLD) unit.
Look at C32, it should be next to the bluetooth module (unfortunately I don't have a picture).
Follow the trace that connects C32 to the input on the bluetooth module.
Once you remove C32, connect the microphone positive lead (+) to that input.
Then connect the microphone ground/negative (-) lead to ground or a case screw.
This will fix the bluetooth phone call audio.
Click to expand...
Click to collapse
thanks a lot man

Any help please!!!
I recently installed eonon headunit. I was able to mirror my s7 edge onto the head unit. I updated my s7 to android 7 and now i cant mirror the two unit anymore.
I can use bluetooth to stream audio on phone to headunit

New Joying 5.1.1 Bluetooth calling audio terrible.

I just purchased a new 7" Joying 5.1.1 mtcd unit. The audio during a Bluetooth call is awful. It comes through so broken up I can barely understand the person talking to me. It's not my phone either because I tried another Bluetooth headset and it worked fine. Any ideas on how to fix this?

Per mtcb thread, the same mic issues exists as almostevery cheap chinese head unit, including the wince units. The solution is to physically and electrically disconnect the internal microphone and connect a quality external microphone. Forget the cheap Chinese external mics and source a local lapel electret microphone. The difference will be night and day! Installation is important too - suggest mounting on steering column or (best) pointing back toward driver near rear view mirror (window acts as a parabolic reflector.) Keep away from sides/side window to minimise road noise.

marchnz said:
Per mtcb thread, the same mic issues exists as almostevery cheap chinese head unit, including the wince units. The solution is to physically and electrically disconnect the internal microphone and connect a quality external microphone. Forget the cheap Chinese external mics and source a local lapel electret microphone. The difference will be night and day! Installation is important too - suggest mounting on steering column or (best) pointing back toward driver near rear view mirror (window acts as a parabolic reflector.) Keep away from sides/side window to minimise road noise.
Click to expand...
Click to collapse
I have read a little about that and it seems that will only fix the outgoing sound(my voice). Will it help the incoming sound that I get from whoever I am talking to on the phone?

Rahbui said:
I have read a little about that and it seems that will only fix the outgoing sound(my voice). Will it help the incoming sound that I get from whoever I am talking to on the phone?
Click to expand...
Click to collapse
This might help the incoming sound if the outgoing is really bad as some outgoing is mixed. The mic mod exponentially improves outbound audio so suggest making the modification and testing your results.

I bought a 7" Carjoying (Android 4.4.4 kitkat; CPU: RK3188 1.6GHz Cortex A9 Quad Core) last january for my 98 ford ranger. While running wires for the GPS, I went ahead and installed the external mic(came with the unit) on my sun visor. People have no issues hearing me, unless I'm on the freeway with the window down. I did not disconnect the head unit mic.

Rahbui said:
I just purchased a new 7" Joying 5.1.1 mtcd unit. The audio during a Bluetooth call is awful. It comes through so broken up I can barely understand the person talking to me. It's not my phone either because I tried another Bluetooth headset and it worked fine. Any ideas on how to fix this?
Click to expand...
Click to collapse
I had the same issues. The audio quality from the one speaker did improve some after updating the software.

Phredeee said:
I had the same issues. The audio quality from the one speaker did improve some after updating the software.
Click to expand...
Click to collapse
i agree, i went from the Joying June update to the mid-August MCU update and I think it does sound better. Still not great, but better

Joying 10.1 bluetooth problem on call

Hi
I've bought a joying 10.1 .
I'm having a weird problem with this unit. When i make a bluetooth call the audio only comes out of my 2 front little speakers ( tweeters , high tones only ) . My middle and rear speakers aren't working when in a phonecall. When playing music true bluetooth , there's no problem and audio comes out of all the speakers. Also for all other apps that use audio there are no problems and sound plays normally true all the speakers.
What could be the problem here?
Balance setting and fading are working like they suppose to. For me this is a problem that can be solved with an mcu update.
The car i'm using is seat ibiza style model 2016.

gohigher123 said:
Hi
I've bought a joying 10.1 .
I'm having a weird problem with this unit. When i make a bluetooth call the audio only comes out of my 2 front little speakers ( tweeters , high tones only ) . My middle and rear speakers aren't working when in a phonecall. When playing music true bluetooth , there's no problem and audio comes out of all the speakers. Also for all other apps that use audio there are no problems and sound plays normally true all the speakers.
What could be the problem here?
Balance setting and fading are working like they suppose to. For me this is a problem that can be solved with an mcu update.
The car i'm using is seat ibiza style model 2016.
Click to expand...
Click to collapse
hello ,for the bluetooth call, the sound comes only in the front speakers. if your tweets and med are in output rca front ,that's the reason .

thierry34 said:
hello ,for the bluetooth call, the sound comes only in the front speakers. if your tweets and med are in output rca front ,that's the reason .
Click to expand...
Click to collapse
thanks for your answer . Can you explain this a little more? Because i'm not using the rca of my radio unit.

gohigher123 said:
thanks for your answer . Can you explain this a little more? Because i'm not using the rca of my radio unit.
Click to expand...
Click to collapse
Please change the title of your post (edit first post). You ask something about bluetooth calling and you name the post "Joying 10.1". Not very relevant so please expand it a little.
From your question it is also clear that you have an Intel as the Intel enables calling on both left and right front speakers, while all(!) Rockchip PX3/PX5/PX30/PX6 units, including the Joying PX5s, only use the front-left speaker. I assume (again) that you have new SC9853i unit and not an older Sofia unit.
You mention that the sound is only coming from the front-tweeters. That's a new one and I will test myself in the next couple of days. I had not noticed it.
It is indeed strange if you consider that a male human voice is between 85~180 Hz and of a woman between 160~250 Hz, which is the (mid)Bass range.

thierry34 said:
hello ,for the bluetooth call, the sound comes only in the front speakers. if your tweets and med are in output rca front ,that's the reason .
Click to expand...
Click to collapse
surfer63 said:
Please change the title of your post (edit first post). You ask something about bluetooth calling and you name the post "Joying 10.1". Not very relevant so please expand it a little.
From your question it is also clear that you have an Intel as the Intel enables calling on both left and right front speakers, while all(!) Rockchip PX3/PX5/PX30/PX6 units, including the Joying PX5s, only use the front-left speaker. I assume (again) that you have new SC9853i unit and not an older Sofia unit.
You mention that the sound is only coming from the front-tweeters. That's a new one and I will test myself in the next couple of days. I had not noticed it.
It is indeed strange if you consider that a male human voice is between 85~180 Hz and of a woman between 160~250 Hz, which is the (mid)Bass range.
Click to expand...
Click to collapse
Thanks for your answer . I've changed the title like you asked. This is the radio i've bought € 322,18 35%OFF | 10.1" Android 8.1 Car GPS Navigation for Volkswagen VW/Skoda/Golf/Passat/Jetta/Octavia 1 Din Car Head Unit Stereo Player Canbus
https://s.click.aliexpress.com/e/lSnBHuIc
Hope you have enough info with this?
You can hear the people speak true the tweeters but sound quality is very crappy like that. Hope there's a fix for this problem.

Looks like this is the model no : Jy-vo132n4gs

gohigher123 said:
Looks like this is the model no : Jy-vo132n4gs
Click to expand...
Click to collapse
Yes, it is. I have the same.. I will test myself on Wednesday.

surfer63 said:
Yes, it is. I have the same.. I will test myself on Wednesday.
Click to expand...
Click to collapse
I'm very curious now what will be the result on your side.

Never mind i've solved the problem myself . Looked like my car had 12 speaker pins instead of 8. I now made the connections myself and it's working great now. Thanks anyway for your help.

gohigher123 said:
Never mind i've solved the problem myself . Looked like my car had 12 speaker pins instead of 8. I now made the connections myself and it's working great now. Thanks anyway for your help.
Click to expand...
Click to collapse
How?

Ideas for Mic

Hi Everyone,
So I need some guidance or ideas, I must find a solution to improve my actual MIC for my car.
Today I have a simple mic connected to my phone, but the sound is awful.
I Have this unit in my car ( Suzuki SX4 ):
https://www.aliexpress.com/item/32911968314.html?spm=a2g0o.order_list.0.0.4d661802UpSIO6
unfortunately, this unit doesn't have an AUX port,
so I'm trying to combine something to the back ( see picture attached),
I don't know if I connect something to port 1 or 2 it will work.
So anyone who has the same problem or have some ideas
I will really appreciate it.
Thank you all

Is it an FYT based unit. You're going to need to do some work..
Also, clarify question, whatis it

That's not an FYT, it's an Allwinner T3_P3. It doesn't look like it supports an external MIC, so soldering is probably required to tap into the internal mic contact points if that's even possible.

j-5 said:
That's not an FYT, it's an Allwinner T3_P3. It doesn't look like it supports an external MIC, so soldering is probably required to tap into the internal mic contact points if that's even possible.
Click to expand...
Click to collapse
That's what I thought.
I will keep searching for other alternatives
Thanks!

No Mic input on Idoing head unit for 2017 Subaru WRX STI

Forgive me if this has been asked / answered before, but I did lots of searching and didn't find it, potentially due to my head unit being known under another name?
The Car and Setup:
* 2017 WRX STI with Harmon Kardon system
* Stock except for the head unit
* Bought the IDoing Head Unit 2015-2021 WRX / STI for Harmon Kardon (from WRXDaily)
* Followed Smeedia and Boost&Shutter video guides to swap out the old head unit and install the new one.
* Ran external mic up the A-pillar
* CAM-BUS decoder is installed
* HU shows as sprd ums512_1h10_natv
* CPU is UIS7862 Octa-Core 2.0 GHz, with 4GB Memory 64GB Storage
* MCU 2021.04.26 15:40:55 PSTAR_53_L6315_G23P48F64_V:1.0
* Android 10, Build number QP1A.190711.020
* I believe this is an FYT unit, more info here: https://forum.xda-developers.com/t/...unisoc-ums512-q-a-mods-tips-firmware.4396339/
Troubleshooting Attempted:
* Triple-checked that the cables were all plugged in correctly across the whole link and had no pinches
* Rebooted the head unit, re-connected the phone
* Ensured that all other functionality works (Android Auto Wired and Wireless, sound, backup camera, etc)
* Tested mic with a variety of apps, both with android auto and the head unit standalone.
* Tested with a variety of methods of activating the mic
* Looked for software option to enable it, didn't find it.
* All work resulted in the mic not appearing to pick up anything
* Went to Factory menu in settings (PW is 3368) and enabled the 'mic' option; no change
So what I'm wondering is if there is a software option needed to enable the mic, or I'm dealing with a hardware issue?
I suppose I could yank the mic out and plug it into another device, but before I do so, if anyone with some experience here could redirect me, what would be very helpful. Thank you in advance, and let me know what additional information you need.
Update: Added what I've learned about the head unit in case anyone else searches this post, and additional troubleshooting attempted.

Test the mic with PC or laptop first, Android may not register mic at all if mulfunctioned.

Thank you! I'll try this out; not looking forward to taking the dash apart again
Update: Haven't yet had a chance to test the mic with another device; poor weather + busy schedule + lack of desire to take dash apart have delayed. I do have a local expert who is checking if he has a 'known good' mic that I can also try

kfkWRX17 said:
Thank you! I'll try this out; not looking forward to taking the dash apart again
Update: Haven't yet had a chance to test the mic with another device; poor weather + busy schedule + lack of desire to take dash apart have delayed. I do have a local expert who is checking if he has a 'known good' mic that I can also tr
Click to expand...
Click to collapse
No need to take apart anything just connect switch / end odf a mic to a laptop while in a car (make a joint or if you have usb 4 pin cable ready)

Anton TNT said:
No need to take apart anything just connect switch / end odf a mic to a laptop while in a car (make a joint or if you have usb 4 pin cable ready)
Click to expand...
Click to collapse
The external mic connects at the back of the head unit
So there is no way to plug it into another device without pulling the dash

kfkWRX17 said:
The external mic connects at the back of the head unit
So there is no way to plug it into another device without pulling the dash
Click to expand...
Click to collapse
Disconnect it from head unit if possible, and test. It must disconnect at the back it is only connected thru jack .

Anton TNT said:
Disconnect it from head unit if possible, and test. It must disconnect at the back it is only connected thru jack .
Click to expand...
Click to collapse
Ok, I've torn up my dash again. thank you to everyone who gave me suggestions on the mic. Here are the results of my testing. Device details again for reference: iDoing FYT unit UIS7862 MCU 2021.04.26 15:40:55 PSTAR_53_L6315_G23P48F64_V:1.0
Validated External Mic by removing the 3.5mm jack and plugging it into the 3.5mm jack on both a microsoft surface tablet and an old Moto Z play
On the moto Z play, the phone was able to register voice via google assistance. The phone is on its last legs and died, so I switched to the surface
On the surface, I made a test call to a friend in discord, changed from the surface internal mic to the iDoing external mic during the call; friend could hear me and noticed the audio change. I also made 2 recordings, one with the iDoing external mic and one with the Surface internal mic. They sounded different but I could hear both
fully disconnected the harness from the back of the iDoing head unit and downloaded a voice recorder app directly to the head unit (phone was not paired)
Recording 1: Internal mic, "back MIC switch" in Factory menu set to "OFF - Front Mic"
Recording 2: internal mic, "back MIC switch in Factory menu set to "ON - back Mic"
firmly plugged in the harness in the correct spot (it was fully seated) and re-connected the external mic
Recording 3: external mic, "back MIC switch" in Factory menu set to "OFF - Front Mic"
Recording 4: external mic, "back MIC switch in Factory menu set to "ON - back Mic"
zero of the recordings picked up any sounds.
So my conclusions are that one, the external mic does work, and 2, either the iDoing head unit doesn't understand mic input, I have failed to enable it properly, or BOTH the harness and the internal mic are dead.
Any advice?

Last resort - use app called LESSER AUDIO SWITCH , download and install from Google Play store , there inside app you can set input and output for speakers and mic

Anton TNT said:
Last resort - use app called LESSER AUDIO SWITCH , download and install from Google Play store , there inside app you can set input and output for speakers and mic
Click to expand...
Click to collapse
Thank you! I will try that. This HU already has a method of boosting mic gain; did it to the max and no change.
The other idea I'm going to try is a USB mic, since I do have USB inputs

Anton TNT said:
Last resort - use app called LESSER AUDIO SWITCH , download and install from Google Play store , there inside app you can set input and output for speakers and mic
Click to expand...
Click to collapse
I tried this, and the only option in the app was the internal mic. Still no dice
I am suspecting a VERY strange software issue. Any other ideas?

Please take a photo of each factory settings and post here...

Anton TNT said:
Please take a photo of each factory settings and post here...
Click to expand...
Click to collapse
This is the main setting I've been toggling; I'll get a list of the other settings later today

Ok i literally couldn't find another setting that was remotely relevant.
This thing is borked at the software level. Probably gonna return

Why is front mic off ?

Anton TNT said:
Why is front mic off ?
Click to expand...
Click to collapse
That's the setting that I have toggled. On or off makes zero change

hardware problem or internal mic disconnected

Anton TNT said:
hardware problem or internal mic disconnected
Click to expand...
Click to collapse
yup. I will wait for IDoing to respond

UPDATE:
IDoing finally got back to me. They claim there is a bluetooth bug causing this issue, and gave me 2 files to "update" the driver. They sent me videos of someone plugging in UBS and the update just 'happening'. I doubt it's that simple. Has anyone performed this update, and if so, could they advise me on how to do so properly? Thanks in advance

kfkWRX17 said:
UPDATE:
IDoing finally got back to me. They claim there is a bluetooth bug causing this issue, and gave me 2 files to "update" the driver. They sent me videos of someone plugging in UBS and the update just 'happening'. I doubt it's that simple. Has anyone performed this update, and if so, could they advise me on how to do so properly? Thanks in advance
Click to expand...
Click to collapse
I think you must import those drivers from factory settings, there is import button.

Thanks! I tried this; successfully updated bluetooth, but no change in the mic. I am not surprised.