yashsingh1/xdaforums huggingface dataset:
[MTCD Software Development] NKOCL:
MCU PX3 No Bluetooh Sound (FIXED)

Well guys, I managed to solve the Bluetooh problem, I tell you what I did, My radio in case it comes with a Bluetooth SD968 module, so seeing the MCU scheme this is what controls it, apart it was equipped with a Realtek WIFI card 8188ETV in Module format, this is USB and it is soldered on the Radio Motherboard, at the time of downgrading the MCU from the MTCD KBT version, the BT SD968 module stopped sending audio, looking for the whole weekend my solution was replace the WIFI RTL 8188 ETV module with an RTL8723BU Module (this module is managed directly by Android) that was practically Plug and Play (you must have basic soldering skills)

Modulo Relatek 8723BU (wifi 2.4GHZ y Bluetooth 4.0) SOC

https://www.realtek.com/en/products/communications-network-ics/item/rtl8723bu

[IMG="RTL 8723 BU"]https://ae01.alicdn.com/kf/HTB1Yx06fTnI8KJjy0Ffq6AdoVXak/RTL8723BU-USB-wireless-module-2-4-WiFi-Bluetooth-combo-module-interface-4-0-module.jpg[/IMG]

Modulo Realtek 8188 ETV

https://www.realtek.com/en/products/communications-network-ics/item/rtl8188etv

[IMG="RTL 8188 ETV"]https://ae01.alicdn.com/kf/HTB1olKaQhYaK1RjSZFnq6y80pXa8.jpg_q50.jpg[/IMG]

OLD Module BLUETOOTH SD968

https://es.aliexpress.com/item/32826631134.html

[IMG="SD968"]https://ae01.alicdn.com/kf/HTB1uWv_hsnI8KJjSsziq6z8QpXaS/I140-IVT-BC8-Bluetooth-3-0-EDR-M-dulo-de-audio-de-datos-i140-m-dulo.jpg[/IMG]

The Module took it out of a radio that the MCU died in the warehouse and used the module

If the Theme does not correspond to the Thread please move or notify me to be able to copy it or make a New Thread, this weekend I learned a lot how these radios work more thoroughly

thank for all !!!!
[MTCD Software Development] marchnz:
Helpful post, wrong section.

You'll find a number of posts on replacing the BT module as you have. Note that not any RTL 8723 BU can be used, the 'generic' modules do not work with Android 8 up. The proper type 2 can be purchased in aliexpress new.

BTW, from what I can tell - the csx mod is hardcoding sound processor eq offsets, basic compared to the mod Wadzio created; coding which enables the true parametric eq.
[MTCD Software Development] typos1:
Yeah thats right, a more basic sound mod than [MENTION=8817431]Wadzio[/MENTION]'s.

---------- Post added at 01:44 PM ---------- Previous post was at 01:42 PM ----------

Maybe a bit of over kill - you could probably have sorted it with software !
[MTCD Software Development] furuko1231:
Hello

I'm trying to find "dmcu(MTCE_MX_V3.56sp) modified by cs-x.zip" file. Can you upload it if you have it?

Thanks
[MTCD Software Development] XXX-Man26:
All files I have are on the link.
[MTCD Software Development] typos1:
Have you not been able to get later ones [MENTION=4358421]XXX-Man26[/MENTION] ?
[MTCD Software Development] XXX-Man26:
Not for now. cs-x is not willing to publish them. He only sends on private message on 4pda by request.
[MTCD Software Development] typos1:
Ah I remember you saying now, but several people have said that some later ones are on 4pda.
[MTCD Software Development] XXX-Man26:
Only stock versions available.
[MTCD Software Development] jerrymh1:
Hellow. How do you obtain the new versions? I cannot pass the captcha verification on the register page on 4pda. so not know russian jajaj. I need an updated MCU for Dasaita HA PX5 , want to buy the Halk9 android 10 update modification but it needs an updated MCU. latest version on my PX5 is 3.30sp csx and not like the stock sound on the unit.
[MTCD Software Development] fratellos:
See link in post #1 (https://mega.nz/folder/T1FgjA7A#wc9p40bocqCiBX8XPR50ig).
[MTCD Software Development] jerrymh1:
Have the same ver. 3.30sp, Need a Higer versio. Thanks
[MTCD Software Development] fratellos:
Take a look here : https://www.dasaita.com/blogs/news/update-firmware

After Sale Support： Office@Dasaita.Com
[MTCD Software Development] shimondano1:
thank you.
[MTCD Software Development] HSaber:
Sorry for my ignorance but what this actually does?
[MTCD Software Development] typos1:
Read the thread and your ignorance will be gone.
[MTCD Software Development] Crazyboys1984:
Good morning,i have psx5 for peugeot 2008 with mtce_ha_v3.06_1 jan 24 2019 .

Can anyone point me to an update file for this car stereo?

Thanks
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-YB-3.10sp (Sound Patched) YUAN-BEI (YB-suffix)

Added modified firmware MTCE-OLS-3.10sp (Sound Patched) RONG-LIAN-FA (OLS-suffix)

Added modified firmware MTCE-LY-3.10sp (Sound Patched) LING-YUN (LY-suffix)
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-LM-3.10sp (Sound Patched) LEI-MA (LM-suffix)
[MTCD Software Development] IbrahDr:
I have a big problem !!!

I installed the wrong version of MCU, I lost steering wheel controls

I was in MTCE_LM_V3.12_1

What to do ?

What did you have before ?
[MTCD Software Development] typos1:
And what version did you install ?
[MTCD Software Development] IbrahDr:
MTCE-HA-2.95sp (Sound Patched)

Bluetooth also does not work
[MTCD Software Development] typos1:
Why did you intall HA on an LM unit ? Did you export your settings before flashing ?
[MTCD Software Development] IbrahDr:
I am a novice and I read the topic incorrectly.

No, I did not export them
[MTCD Software Development] typos1:
Ok, well download an LM MCU and flash that, then you may have to play around with the settings manually, or find someone with the same LM unit and ask for their mcu.cfg.
[MTCD Software Development] IbrahDr:
I reflash the MTDE_LM_V3.10, everything works except the steering wheel and bluetooth controls

It's my LM unit :

https://fr.aliexpress.com/item/32956944933.html
[MTCD Software Development] typos1:
As I said you ll have to play around with the settings manually (in factory settings), or find someone with the same LM unit and ask for their mcu.cfg.
[MTCD Software Development] IbrahDr:
How to get to the factory settings?
[MTCD Software Development] typos1:
Password 126, you should really search this site for basic info before doing things.
[MTCD Software Development] IbrahDr:
Where ?! In the system settings I have no place to put a password

I'm a novice, I don't understand.
[MTCD Software Development] typos1:
In factory settings which is in settings, before doing anything you really need to search and read the forum - all the info you need has been written many , many times.
[MTCD Software Development] IbrahDr:
Ok perfect with the code: 3368 I was able to solve my problems except one! I don't have sound during bluetooth calls

What's my cambus number for a 6 tdi golf course with steering wheel control?

Thank you
[MTCD Software Development] typos1:
Number ? You mean what setting ? First look at your CAN Bus adapter to find out the manufacturer, then, in factory settings you ll see that CAN Bus adapters are listed by manufacturer and car, set it to your cAN Bus manufacturer and then try all the VW settigns and go with the one that works best, VW/Simple is most common. Sometimes theres no manufacturer written on the CAN Bus adapter, if thats the case you ll just have to try all VW ones.

You an adjust the volume level of BT in factory settings, but it may be that its set to the wrong BT module type, so you may just have to try them all and see what works.
[MTCD Software Development] IbrahDr:
I tested all the bluetooth modules before finding the right one. Everything works properly apart from sound during calls

This comes from a bad Bluetooth module or the wrong canbus ?
[MTCD Software Development] typos1:
BT has nothing to do with CAN Bus., was BT working before you flashed the wrong MCU ?
[MTCD Software Development] IbrahDr:
Yes, it worked perfectly well

What's weird is that it works except for calls
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-TONE-3.08sp (Sound Patched) SAN-YI-CHUANG-HE (TONE-suffix)
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-CZ-3.10sp (Sound Patched) CHE-ZHUO (CZ-suffix)

Added modified MTCE-HXD-3.10sp firmware (Sound Patched) HE-XIN-DA (HXD-suffix)
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCP-OLS-3.12sp (Sound Patched) RONG-LIAN-FA (OLS-suffix)

Added modified firmware MTCE-MX2-3.13sp (Sound Patched) MAI-XIN (MX-suffix)

Added modified firmware MTCE-HA-3.14sp (Sound Patched) Dasaita / HotAudio (HA-suffix)

Added modified firmware MTCE-LM-3.16sp (Sound Patched) LEI-MA (LM-suffix)

Added modified firmware MTCE-GS-3.17sp (Sound Patched) GE-SHI (GS-suffix)
[MTCD Software Development] zeyret:
Here is MTCE_MX_V3.313 waiting to be modified.

https://xdaforums.com/showpost.php?p=79835802&postcount=530
[MTCD Software Development] Jonika21:
anyone using this patched mcu with wazdio eq? any feedback? thank you
[MTCD Software Development] typos1:
No, because its impossible.
[MTCD Software Development] Jonika21:
Thank you typos1!

Which one produces a better sound? Any idea? :)

Wazdio doesn't update their mcus for some time, it is the community that does it, but i think it doesn't so good like before

Enviado do meu SM-G950F através do Tapatalk
[MTCD Software Development] typos1:
You have to use Wadzios with his app too, it is more advanced and should sound better, the one in this thread is just the MCU and is more basic.
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-MX-3.13sp (Sound Patched) MAI-XIN (MX-suffix)
[MTCD Software Development] Doky1988:
Hello! You have original CZ mcu? I've been looking everywhere!
[MTCD Software Development] XXX-Man26:
No, sorry.
[MTCD Software Development] typos1:
Why you want it ? This version is much better.
[MTCD Software Development] Doky1988:
How is it different from the original? What does it mean SoundPatched?
[MTCD Software Development] XXX-Man26:
https://xdaforums.com/android-auto/...ent/mod-cs-x-mod-mtcd-e-mcu-firmware-t3816042
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-CHS-3.15sp (Sound Patched) CHE-HONG-SHENG (CHS-suffix)

Added modified firmware MTCE-YB-3.16sp (Sound Patched) YUAN-BEI (YB-suffix)
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-TONE-3.17sp (Sound Patched) SAN-YI-CHUANG-HE (TONE-suffix)
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-LY-3.16sp (Sound Patched) LING-YUN (LY-suffix)

Added modified firmware MTCE-HA-3.14ss (Sound Patched) Dasaita / HotAudio (HA-suffix)

for the subwoofer channel, the cut-off frequency of the low-pass filter is 85 Hz

Added modified firmware MTCE-HA-3.14s0 (Sound Patched) Dasaita / HotAudio (HA-suffix)
[MTCD Software Development] esziszi:
Could I get the unmodified MTCE-CZ-3.10, please?

I have a CZ unit with DSP, flashed a dmcu that turned out to be XRC, can't find a factory CZ file anywhere.

Thank you.
[MTCD Software Development] XXX-Man26:
Sorry, I don't have it.

All files I have are on that Mega link.
[MTCD Software Development] typos1:
You dont need the unmodified one, just flash the one from this thread, its your only source of CZ MCUs, its the same as the unmodified one just with enhanced audio.
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-KSP-3.07sp (Sound Patched) KAI-SI-PU (KSP-suffix)

added modified firmware MTCD-KSP2-2.56es (Sound Patched) KAI-SI-PU (KSP-suffix)

Added modified firmware MTCE-YL-3.10sp (Sound Patched) YI-LING (YL-suffix)
[MTCD Software Development] Silver_:
Hi my friend, there is some difference between the KSP2 and the simple KSP firmware. My current firmware, on my Headunit, is the KSP 3.00 but I don't know if I could flash the KSP2 firm, I think that it is different but I need to be clarified. Thank you for all.
[MTCD Software Development] XXX-Man26:
Why would you flash KSP2, it's older version? Flash KSP.

Sent from Redmi Note 5 Pro using Tapatalk
[MTCD Software Development] typos1:
If he has a KSP2 unit he ll want KSP2 MCU - KSP and KSP2 are not the same.
[MTCD Software Development] XXX-Man26:
If I understand him, he has KSP unit, not KSP2.

Whatever it is, flash the same you have.

Sent from Redmi Note 5 Pro using Tapatalk
[MTCD Software Development] Silver_:
I thought that being ksp2 was more modern.

Enviado desde mi HT20Pro mediante Tapatalk
[MTCD Software Development] typos1:
OK.

No, the number after that detones the modernity of the MCU, the letters and/or numbers before (KSP, KSP2) denote the type - KSP2 is a different version of KSP, sure, they may be interchangeable, but they may not be also, you have to know what youre doing to try it.
[MTCD Software Development] XXX-Man26:
Added modified MTCE-HA-3.20sp firmware (Sound Patched) Dasaita / HotAudio (HA-suffix)
[MTCD Software Development] korekore1:
how do people get hold of the original updates,anyone know?

Like some chinese site or something?
[MTCD Software Development] Silver_:
Thanks my friend for your quickly answer but I have some doubts, What differences are noticed when switching to a higher version? Is there a list where they put the updates made? If yes, where is it? :good:
[MTCD Software Development] typos1:
MCU changelogs are very rare. You may or may not notice any differences, but there are always some, its advisable to update your MCU if theres a newer one available.
[MTCD Software Development] XXX-Man26:
Added modified firmware MTCE-HXD-3.10ss (Sound Patched) HE-XIN-DA (HXD-suffix)

Added modified MTCE-HA-3.20ss firmware (Sound Patched) Dasaita / HotAudio (HA-suffix)
[MTCD Software Development] zeyret:
Hi [MENTION=4358421]XXX-Man26[/MENTION] , Here mate MTCE_MX_V3.17 is waiting to be changed.

https://xdaforums.com/showpost.php?p=79960034&postcount=1560

Best regards...
[MTCD Software Development] eNubiX:
What's the difference between MTCE-HA-3.20sp and MTCE-HA-3.20ss?
[MTCD Software Development] XXX-Man26:
On ss for the subwoofer channel, the cut-off frequency of the low-pass filter is 85Hz
[MTCD Software Development] eNubiX:
New MCU

MTCE-HA-V3.30 (Original) https://www.sendspace.com/pro/dl/ht4mbi
[MTCD Software Development] XXX-Man26:
You should be aware I don't do anything more than post modified files from cs-x when he does it.
[MTCD Software Development] XXX-Man26:
added the modified MTCE-HA-3.30sp (Sound Patched) Dasaita / HotAudio (HA-suffix)
[MTCD Software Development] ennysubo:
MTCE_MX_V3.17（with LOGO)

MTCE_MX_V3.17（with LOGO)
[MTCD Software Development] XXX-Man26:
What should I do with that?
[MTCD Software Development] typos1:
Dunno, guess hes another person who hasnt bothered to read the thread.
[MTCD Software Development] XXX-Man26:
Reading and understanding must be hard for some people...
[MTCD Software Development] typos1:
Welcome to xda, lol.

Its the reading most people have a problem with and thats down to laziness, why read it when you can ask someone to type it out in a nice little box for you ?
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-MX-3.17sp (Sound Patched) MAI-XIN (MX-suffix)
[MTCD Software Development] ennysubo:
thank you man.

and now you answere on your question (what should i do with this) after i upload this version of mcu a few posts above.
[MTCD Software Development] typos1:
You read this thread and the other thread linked to at the beginning of this thread.
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-MX2-3.17sp (Sound Patched) MAI-XIN (MX-suffix)
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-YB-3.30sp (Sound Patched) YUAN-BEI (YB-suffix)
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-CHS-3.30sp (Sound Patched) CHE-HONG-SHENG (CHS-suffix)
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-HA-3.30ss (Sound Patched) Dasaita / HotAudio (HA-suffix)
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-KLD-3.01ss (Sound Patched) KLYDE (KLD-suffix)

for the subwoofer channel it became: the cut-off frequency of the low-pass filter is 85Hz

added the modified firmware MTCE-KLD-3.01sl (Sound Patched) KLYDE (KLD-suffix)

for the subwoofer channel it became: cut-off frequency of the low-pass filter 55 Hz
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-CZ-3.30sp (Sound Patched) CHE-ZHUO (CZ-suffix)
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-ZST-3.30sp (Sound Patched) ZHE-SI-TE (ZST-suffix)
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCD-KD-2.52sp (Sound Patched) KU-DUO (KD-suffix)
[MTCD Software Development] darkgano:
What does sl sp ss mean at the filename? In my case for 3.01 kld

My firmware at the hu is mtce_kld_v2.88b_1
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-HXD-3.30as (Sound Patched) HE-XIN-DA (HXD-suffix)
[MTCD Software Development] korekore1:
anyone knows what these firmware updates update? I havent still seen a visible change.

I mean the factory ones
[MTCD Software Development] typos1:
The MCU, extra vehicles in CAN Bus settings, extra functions, bugs sorting etc.
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-MX-3.30sp (Sound Patched) MAI-XIN (MX-suffix)

added the modified firmware MTCE-HT-3.10sp (Sound Patched) HUA-TAI (HT-suffix)
[MTCD Software Development] Mike.rayman3:
Mcu update help

Im trying to do a mcu update to my seicane hf s8 series h2023 android 9.0 because my rca out for subwoofer does not work. Seicane emailed me back and told me to do this but did not give me an update file. What am i looking for?

Mcu is currently mtce_hf_v3.18a_1
[MTCD Software Development] typos1:
I doubt you will find an update for a while - 3.18 is pretty up to date.

Seicane are a seller only - "HF" are the initials of the manufacturer of your unit, not a manufacturer I ve heard of in the 5 years I ve been using MTC units.
[MTCD Software Development] Mike.rayman3:
Funky. Wonder why they told me to do an update and there probably isnt one. Do you have any insight to a possibly cause of my subwoofer not receiving sound then? I cant find a subwoofer on off switch anywhere in the settings like standard headunits. Remote wire works but no sound and i use a y cable to connect to the single sub out on the harness.
[MTCD Software Development] typos1:
Most sellers dont really know much about the units they sell, upgrading your MCU is a good thing and can cure some faults, but personally I dont think your problem sounds MCU related.

What do you mean by "remote wire works" ? You mean theres 12v on it ? All it does is switch on any amp connected to it. A y cable ? Whats the other end connected to ? Are the other RCA outs working ?
[MTCD Software Development] Mike.rayman3:
The y splitter is from the amp rcas to the headunit because there is only one sub out. The rcas are not giving any noise to the sub thats my problem. Ive tested the amp and sub on a test bench and they do work but this headunit isnt sending sound. The remote wire is the blue wire telling the amp to turn on an off so it has a signal. I mention this because the remote wire is on the same bundle harness as the rcas so i thought it was weird one works one doesnt.
[MTCD Software Development] typos1:
Yes I know what your problem is, I just wondered why you were using a y cable.

Have you tested the RCAs with a multimeter ? Is the problem just with the sub out RCA then ? - do the other RCAs work ok ?

I know what the remote wire is (see my post above).
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-WWW-3.01sp (Sound Patched) KE-LAI-DE / Eonon (WWW-suffix)
[MTCD Software Development] haxigi:
Hello, my HU is based on MTCE GS V3.17_3 (HU with DSP)

can i install some patched MCU for better sound quality?
[MTCD Software Development] typos1:
Not on units with DSPs.
[MTCD Software Development] haxigi:
Are there any other tweaks or mods for better sound quality for HU with DSP?
[MTCD Software Development] typos1:
Dont think so, check the thread for them.
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-HF-3.30sp (Sound Patched) HUA-FEI (HF-suffix)
[MTCD Software Development] XXX-Man26:
Original topics for all info and support, ALL QUESTIONS MUST BE ASKED THERE, NOT HERE:

4pda.ru thread

[MOD][MCU] cs-x Mod MTCB/C MCU firmware (SoundPatched)

[MOD][MCU] cs-x Mod MTCD/E MCU firmware (SoundPatched)
[MTCD Software Development] typos1:
I m sure loads of people will still ask here, lol.
[MTCD Software Development] XXX-Man26:
I know :)

I just don't have time for answering them, even if I know the answer.
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-GS-3.30sp (Sound Patched) GE-SHI (GS-suffix)
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-LM-3.30sp (Sound Patched)
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-MX2-3.30sp (Sound Patched) MAI-XIN (MX-suffix)
[MTCD Software Development] XXX-Man26:
added the modified firmware MTCE-MX2-3.37sp (Sound Patched) MAI-XIN (MX-suffix)
[MTCD Software Development] eNubiX:
Hello [MENTION=4358421]XXX-Man26[/MENTION]

Is there a new patched version for Dasaita MTCE_HA_V3.40? That would be great.
[MTCD Software Development] zeyret:
Hi [MENTION=4358421]XXX-Man26[/MENTION]

MTCE_MX_V3.37 (with logo)

https://yadi.sk/d/2RS7F74ZOtKg0Q
[MTCD Software Development] typos1:
Thats sound patched not factory ?
[MTCD Software Development] zeyret:
No.
[MTCD Software Development] Ringracer:
Hello, i have found GS v3.40. Can make a Soundmod from him? Thanks

https://yadi.sk/d/umCvHqCDzHccr/All%...ofia3g/GS/dmcu
[MTCD Software Development] typos1:
This thread is for sound patched MCUs and the guy asked for a sound patched MCU !
[MTCD Software Development] Ringracer:
then just sound patched
[MTCD Software Development] XXX-Man26:
Read the first post!
[MTCD Software Development] panteryx_26:
right now i have a KGL V2.70 MCU if i use the KGL 3.10 will it update my MCU also ? is there any risk to doing this ?
[MTCD Software Development] zeyret:
Hi, [MENTION=4358421]XXX-Man26[/MENTION]

Can you edit MTCE_MX_V3.37?

https://xdaforums.com/showpost.php?p=81112881&postcount=120
[MTCD Software Development] typos1:
No, he just posts the ones from 4pda, if you keep asking him stupid questions without reading threads he might get annoyed and stop doing it.
[MTCD Software Development] panteryx_26:
Do you know the answer to my post above?
[MTCD Software Development] typos1:
You have a KGL MCU so you can (assuming MTCD or MTCE is written in front of the number).

Go into factory setting (password 126 or m123456), press "export" and pick the sdcard you put the MCU on, then exit factory settings.

Update by going into settings and using the update function.

Make sure you use the export function every time you update the MCU - what you are doing is saving the config of the MCU in case it gets messed up during the update.
[MTCD Software Development] panteryx_26:
Thank you so much.
[MTCD Software Development] XXX-Man26:
:good::highfive:
[MTCD Software Development] savage25:
Hi

I need an MCU for an Erisin 8846 KGL so that I can update to Android 9.

Now have the 3.10 on it.

for Android 9 you need at least 3.30.

Do they already exist?
[MTCD Software Development] typos1:
Not yet from what I ve seen, but you can change the MCU type by reading [MENTION=4974080]marchnz[/MENTION]'s "Cross Compatible MCUs" thread.
[MTCD Software Development] savage25:
Hi

My English is not that good.

I can't find Erisin 8846 at KGL 3.30.
[MTCD Software Development] typos1:
Forget "Erisin 8846" Erisin are just a seller you have a KGL unit.

The latest KGL MCU is 3.10 so you cannot update to Android 9, you can however change your MCU to one that is 3.30 or later, to do that read [MENTION=4974080]marchnz[/MENTION]'s Cross Compatible MCU thread I mentioned in my previous post.
[MTCD Software Development] haxigi:
Hi. My HU is based on MTCE_GS_V3.17_3

i found MTCE_GS_V3.30 on here: https://mega.nz/#F!T1FgjA7A?S4Ml1YiL

So i can easilly install it without any problems? Does anyone have checked this 3.30 version for BMW E46 HU?
[MTCD Software Development] typos1:
If you have MTCE GS 3.17 you can install it, you can install ANY MTCE GS MCU.
[MTCD Software Development] marchnz:
It resolves an issue with canbus seat ejector with select model moon roof option, and for some BMWs, helps with the engine spontaneously combusting, destroying vehicle. Latter comment true story.