Develop Bugs

Weird BT issue

I have an Eonon GA2114 - rk3188, 800*480, KLD2 2.77 MCU, BC6B BT board
With the original Eonon ROM bluetooth is unusable. There is no default device name or PIN. If I type in these, they disappear after reboot. It does not detect either phones or OBD, nor is it detected by phones.
With other KLD ROMs bluetooth is active, can be paired to both phones and OBD but all sound is muted during calls (both ways)
With Joying ROMs, including Malaysk, BT works as it should.
This is clearly a software issue, anyone has any clues about where should I start looking? Are these manufacturers using different BT stack implementations maybe?
Anybody can provide a working rk3188 800*480 Eonon ROM? Not the October 19 ROM also available on this forum, that one has the issue described above.

Hi,
I'm facing the same issue, I have an GA5153V device and contacted Eonon about that but hey keep sending me wrong MCU version and ROM. Can You please tell me which MCU version do You have?
It would be great if someone posts working version of Eonon ROM.

Sn00k said:
Hi,
I'm facing the same issue, I have an GA5153V device and contacted Eonon about that but hey keep sending me wrong MCU version and ROM. Can You please tell me which MCU version do You have?
It would be great if someone posts working version of Eonon ROM.
Click to expand...
Click to collapse
My MCU is a KLD2.
I have requested Eonon to send a compatible ROM, even older, but they say it's the only one available. The ROM they are sending id the one available on this forum in the Factory ROM thread. Eonon appear to just brand generic units and have no technical personnel. I gave up getting a competent answer from them. For now I am on Booroondook's ROM, waiting for Joying to release a Lollipop version.

m00n61 said:
waiting for Joying to release a Lollipop version.
Click to expand...
Click to collapse
At present there is no need to have a bugged (and unfixed by Google) Lollipop 5.0.x on these units, Kitkat 4.4.4 is still the best IMHO.
We'll see in the future what will happen with Marshmellow...

m00n61 said:
My MCU is a KLD2.
I have requested Eonon to send a compatible ROM, even older, but they say it's the only one available. The ROM they are sending id the one available on this forum in the Factory ROM thread. Eonon appear to just brand generic units and have no technical personnel. I gave up getting a competent answer from them. For now I am on Booroondook's ROM, waiting for Joying to release a Lollipop version.
Click to expand...
Click to collapse
Since Eonon is keep sending me KLD2 based mcu even I have KLD(MTCB-KLD-v2.78) by default I cannot use this version because FM radio is not working. I said that to them but again they sent me KLD2, the I gave up on them and now trying to fing some solution to make bluetooth to work.
Can You please tell me where did You download current ROM that You are using?
thx!

Sn00k said:
Since Eonon is keep sending me KLD2 based mcu even I have KLD(MTCB-KLD-v2.78) by default I cannot use this version because FM radio is not working. I said that to them but again they sent me KLD2, the I gave up on them and now trying to fing some solution to make bluetooth to work.
Can You please tell me where did You download current ROM that You are using?
thx!
Click to expand...
Click to collapse
MCU and OS ROM image are independent, even if the Chinese keep sending both you can burn only the Android ROM and leave the MCU untouched.
Anyway, I am currently using this ROM. A more detailed installation procedure is in the first post of the thread.

Go to factory settings and adjust the bt module there. Code is 126.
I was seeing the same thing when I found that option and began playing around.

Any User With EONON GA5165F for BMW E9x

Hi
Someone have at eonon GA5165F for BMW E9X?
I need to know the original configuration for this unit.

Rui tomas said:
Hi
Someone have at eonon GA5165F for BMW E9X?
I need to know the original configuration for this unit.
Click to expand...
Click to collapse
What do you mean by "original configuration" ?
Which head unit manufacturer is it ?

GA5165F BMW 323i E90 2011
typos1 said:
What do you mean by "original configuration" ?
Which head unit manufacturer is it ?
Click to expand...
Click to collapse
I may not be of any help now because I have flashed Malaysk May rom a few days after I received my unit.
I hope we can help each other in the future.
I'm, also, trying to findout WHAT and WHO is MTCB-ZD9-V2.72 ??? Was expecting KGL-790 for a BMW E90.
Here was my Malaysk install comments: http://forum.xda-developers.com/showpost.php?p=67143277&postcount=4486
Thank you all

noise672 said:
I may not be of any help now because I have flashed Malaysk May rom a few days after I received my unit.
I hope we can help each other in the future.
I'm, also, trying to findout WHAT and WHO is MTCB-ZD9-V2.72 ??? Was expecting KGL-790 for a BMW E90.
Here was my Malaysk install comments: http://forum.xda-developers.com/showpost.php?p=67143277&postcount=4486
Thank you all
Click to expand...
Click to collapse
It doesnt matter that you have flashed Malaysk's ROM - I think hes talking about the buttons when he says "configuration" which is MCU controlled not Android. But you still cant help as its not possible to get a copy of the MCU software from a unit.
"ZD9" units have been appearing recently, we dont know the name of the company yet (we may never), but its not that important as long as copies of MCU updates become available, check Malaysk's MCU thread. None there yet.

ALL (PX3-PX5-Intel Sofia) MTCD Updates and MCU Files

I'm not sure if this is aloud or has been posted already but I'd just like to thank the kind gents at 4PDA for the file host and their site !
I dont know if this is indeed all files but here is a ton if anyone is looking :good::good:
MCU Files for all units are in the 2nd folder
https://yadi.sk/d/umCvHqCDzHccr

Hi, i have a px3 unit hzc brand 7.1 rom. Can i use any of these px3 7.1 roms.

Thanks alot for this!
Skickat från min ONEPLUS A3003 via Tapatalk

Cid6.7 said:
I'm not sure if this is aloud or has been posted already but I'd just like to thank the kind gents at 4PDA for the file host and their site !
I dont know if this is indeed all files but here is a ton if anyone is looking :good::good:
MCU Files for all units are in the 2nd folder
https://yadi.sk/d/umCvHqCDzHccr
Click to expand...
Click to collapse
Thank you for this. Can you please make folder listing or at least explain what this file from attached picture is for? It looks like Oreo Image but it is RAR instead of ZIP?

Thanks a lot man! but is there a way you can give me the "how-to" tutorial?

Can I use the latest GS mcu even if I dont have Android 8 on my GS device?

catu said:
Can I use the latest GS mcu even if I dont have Android 8 on my GS device?
Click to expand...
Click to collapse
Yes, MCUs are not processor or OS specific.

Thanks a lot for this, can anybody guide me how to figure out which one of these I need to install. My device mcu version says: 023042bGS-CIC-HW7-180516[B1280_170325].
I Guess it should be GS

cagdas said:
Thanks a lot for this, can anybody guide me how to figure out which one of these I need to install. My device mcu version says: 023042bGS-CIC-HW7-180516[B1280_170325].
I Guess it should be GS
Click to expand...
Click to collapse
If your MCU does not start wth "MTCD" or "MTCE" its not MTCD/E unit, try the Android Headunit general forum.

Thanks I found the right one finally but the hu says please wait and news starts the process.

cagdas said:
Thanks I found the right one finally but the hu says please wait and news starts the process.
Click to expand...
Click to collapse
Where did you find it ?

Hi I have a car radio Px3 (1024x600) android 7.1.2 with mcu mtcd chs Vs 2.56 july 2017 can I update it without risk with the file mtce chs v2, 75 June 2018?

g.mariano85 said:
Hi I have a car radio Px3 (1024x600) android 7.1.2 with mcu mtcd chs Vs 2.56 july 2017 can I update it without risk with the file mtce chs v2, 75 June 2018?
Click to expand...
Click to collapse
Can you share a link to the file ?
And post a screen shot of your MCU ? (it should b "v2.56" not "Vs 2.56").

typos1 said:
Can you share a link to the file ?
And post a screen shot of your MCU ? (it should b "v2.56" not "Vs 2.56").
Click to expand...
Click to collapse
HI this is the link and screen. Thanks
https://yadi.sk/d/umCvHqCDzHccr/All dmcu for PX3, PX5, Intel Sofia3g/CHS

g.mariano85 said:
HI this is the link and screen. Thanks
https://yadi.sk/d/umCvHqCDzHccr/All dmcu for PX3, PX5, Intel Sofia3g/CHS
Click to expand...
Click to collapse
As far as I know you can, but Sofia mdels have the wifi on the SoM, so the MCU may have some differences, do you have a copy of an older CHS MCU ?

typos1 said:
As far as I know you can, but Sofia mdels have the wifi on the SoM, so the MCU may have some differences, do you have a copy of an older CHS MCU ?
Click to expand...
Click to collapse
No, I'm sorry, I don't have any copies. I bought it from a friend. What do you think I risk? I would like to try to update it because I have problems with Bluetooth or do you think it can solve maybe changing roms? But even I wouldn't know where to start, which rom I could put and how. Thank you

g.mariano85 said:
No, I'm sorry, I don't have any copies. I bought it from a friend. What do you think I risk? I would like to try to update it because I have problems with Bluetooth or do you think it can solve maybe changing roms? But even I wouldn't know where to start, which rom I could put and how. Thank you
Click to expand...
Click to collapse
Usually all MTCD/E units use the same MCU and I was always under the impression Sofia units did too, but as I said they have wifi on the SoM which may make a difference as on other MTCD/E units the wifi is on the motherboard, so I m not 100% certain, also the link you posted has "Sofia MCU".
So I would read this thread starting at the beginning to find out for sure.

g.mariano85 said:
No, I'm sorry, I don't have any copies. I bought it from a friend. What do you think I risk? I would like to try to update it because I have problems with Bluetooth or do you think it can solve maybe changing roms? But even I wouldn't know where to start, which rom I could put and how. Thank you
Click to expand...
Click to collapse
Hi, did you succeed with any update? ROM or MCU?
I have a similar MCU CHS 2.51, BT frequently needs a complete 10s-Powerbutton reset to work....
Tx!

Hi, I also have your same problem with the bt. No I have not tried to update I am afraid of breaking everything not being so heady

Green Daddy said:
Hi, did you succeed with any update? ROM or MCU?
I have a similar MCU CHS 2.51, BT frequently needs a complete 10s-Powerbutton reset to work....
Tx!
Click to expand...
Click to collapse
You could try changing the MCU to a different one - see @marchnz's "Verified Cross Compatible MCUs" thread.

Update MCU (PX3)

Hello! I currently have this version of MCU: MTCE_LM_V2.75_1
Is it important to update MCU? Are there risks? After the installation should I configure something?
From the radio I can not update MCU, it does not find any update. But in a post of this forum (Dasaita) I have seen an update is it compatible with my radio unit? MTCE_HA_V3.06.zip
I have a PX3 of 2Gb.
Thank you

I just found this MCU file: MTCE_LM_V3.01c20190111 better this update? I do not know what is the latest MCU version of MTCE_LM_V2.75_1

It's better to keep it up to date, even when you dont experience issues with the device.
The updates are normally not that hard to install and version 3 has the function of teleconference within.
I noticed with my upgrade that the device doesnt freeze anymore during boot. But i had 1.9 installed and now 3.00

d5stick said:
It's better to keep it up to date, even when you dont experience issues with the device.
The updates are normally not that hard to install and version 3 has the function of teleconference within.
I noticed with my upgrade that the device doesnt freeze anymore during boot. But i had 1.9 installed and now 3.00
Click to expand...
Click to collapse
Could you tell me what is the most updated version of this MTCE_LM_V2.75_1? PX3 2Gb. Thank you

I thought the rom for the MCU is 3.01 for LM, you can find those on the forum, only a good search is required.
I have the GS version but i do not recommend installing an MCU from another supplier.
The android PX3 2GB roms can be found anywhere. Search for PX3 ROM LM.

Can somebody help me please
Can somebody help me with a mcu update file please as it keeps shutting down when using gps applications

black_ps said:
Can somebody help me with a mcu update file please as it keeps shutting down when using gps applicstions
Click to expand...
Click to collapse
Not an MTCD.

What do you mean?
marchnz said:
Not an MTCD.
Click to expand...
Click to collapse

black_ps said:
What do you mean?
Click to expand...
Click to collapse
Your unit is not an MTCB/C/D/E, asking in the wrong forums. Read on.
This entire thread is a waste of space in that there are more appropriate places the OP could have posted in or at least searched first, but that's another matter.

I have a MTCE_XRC_V2.79k_1 which has the Intel Sofia cpu. What MCUs can I use?

TLink err: sd_carplay no run

Hey guys,
I’m getting the following error whenever I open the application on my android head unit, anyone knows how to fix this?
Thanks!

Same error here, but can't find any solution. Did you get any luck?

lordmuggins said:
Same error here, but can't find any solution. Did you get any luck?
Click to expand...
Click to collapse
Nope, tried to install the latest version too but nothing seems to be working…

creamygoo said:
Nope, tried to install the latest version too but nothing seems to be working…
Click to expand...
Click to collapse
Ah bummer. I've tried a few versions.. one stops at activating (zlink), and the others install but then give me this error. Very disappointed if my head unit won't support Carplay, as I love it otherwise.

creamygoo said:
Hey guys,
I’m getting the following error whenever I open the application on my android head unit, anyone knows how to fix this?
Thanks!
Click to expand...
Click to collapse
Is unit an MTCD type unit? Post Android system information including MCU version.

marchnz said:
Is unit an MTCD type unit? Post Android system information including MCU version.
Click to expand...
Click to collapse

It's an odd ball "random" chinese origin unit. It's not MTCx type.

I have the same problem. Is there anyone to help?