yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] nosidefcp:
i edited this since the unit is identified and i see that a lot of this units are being sold right now. the goal is to people post firmwares for the unit, root methods, mcus...etc.

my unit in the seller description is described as a dual core. altough, when i received, the system is the same, as you can see in the pictures below, but hardware shows a quadcore cortex A7.

many people achived root with kingoroot.

my unit, per example, wont gain root. ive tried every root app i can remember. with kingoroot, it reaches 90% and it freezes and reboot. also, sometimes when it boots, radio and music app have force close erros and i have to reboot the unit.

people that have root, can you access the mcu.bin and post it here?

EDIT

____________________________________________________

this unit is being sold both in dual core allwinner t2 and quadcore allwinner t3

in the dual core the root can be achived with kingroot or kingoroot apk.

in the quadcore, my case, no root method has been found. i cant connect the unit to the pc so can only try the android versions.

below are firmwares for the dual core and quadcore.

MCU update guide for both models - put the mcu.bin in the root of micro sd card, insert in the unit. a pop up will appear asking for update the mcu, just click ok and let it finish.

updating the full fw. all firmwares come with phoenixcard. open phoenixcard, slect your microsd drive letter, select format to normal, press ok, select image and press burn. after that, turn off unit insert micro sd and turn on unit. it will upgrade. when it finish, black screen will appear, turn off unit, remove card and turn on.

NOTE - everytime i tried to burn the img with phoenixcard in the internalcard reader, i got errors. both in deskptop and laptop. had to use external card reader.

Dual Core FW and MCU

fw may 2016 - https://yadi.sk/d/Eo2U4zfFtXFh6

mcu - https://yadi.sk/d/C5AQ1mOHtWSxu

QuadCore FW and MCU from 09/09/2016

FW - https://mega.nz/#!X50HQS7Q!V6fYDvRY1g_l8epyyxy4GH2mITGRS_1BRCBbc4-IyKI

MCU - https://mega.nz/#!H01jzAIY!GQJzSudDi632ThLsIb5H-IGU1-6sHkyUPzjg7Rwbcu0

video instructions included

________________________________________________________________________________________________________________

Secret Menu tested on quadcore instructions.

go to settings, about device and tap kernel, tap os version, tap kernel, tap os version, tap kernel, tap os version. factory settings menu will apeear. three times each, intercaleted. this have to be accessed because some people after flashing fw, the radio fm app doesnt work so you have to go here and select radio model 7786
[Android Head-Units] CadillacMike:
that launcher looks kind of cool.

I have no idea what it is, but there seems to be a lot of questions like this recently. Where do you all get these head units that you have no idea what they are?
[Android Head-Units] pnonu23:
looks like a bosion. i have the same one. root is available. i rooted with kingo root universal method. I'm hoping to find out how to upgade to 5.1 or install a custom rom. If you want to change the look, nova launcher works without crash, dont install apex

---------- Post added at 03:08 PM ---------- Previous post was at 02:59 PM ----------

also for some reason gmaps works on this 4.4 device with voice recognition so I deleted IGO cause it rearely boots if my flash drive is in. FM radio on my unit doesnt cut off. also freezes when i plug my 2tb hd up to usb. runs kodi and youtube flawlass tho. just wish small makers like this quit locking down their android products and open up support pages. I too was trying to get usb debugg to work but they locked the developers option
[Android Head-Units] nosidefcp:
mine sometimes when it boots, i have to flash the mcu i found on the web. this because the radio app and the music app force close. can anyone provide MCUS for this unit?

kingo root doenst work on mine. its reaches 90%, the unit freezes and reboot
[Android Head-Units] nosidefcp:
people that have root, can you access the mcu.bin and post it here?
[Android Head-Units] pnonu23:
dont know what you want done, but i can help if you tell me how to do it. Dont know how to access a mcu.bin.

In the meantime i have a 1.15 update file with instructions on how to update, that the seller sent me, if anyone is interested. I'm a noob to these mcu boxes.
[Android Head-Units] nosidefcp:
hi. thank you for being available. I don't know if the mcu.bin file is stored somewhere but I know for sure that without rot, I cant find it. my hope is that if you have root access, with root explorer you can find the file. so please download root explorer and then, with the search option just type mcu and/or mcu.bin and see if root explorer find that file. if yes, please upload it here. let me know
[Android Head-Units] carlsberg112:
hello ,

i have the same head unit and had problems with it .

so i got an update from the seller . mcu.bin.

extract the mcu , put it on a sdcard

and insert the card in the unit.
[Android Head-Units] nosidefcp:
so anyone found a root method for the quadcore model? i have a new fw and new mcu from 09/09 all working fine but i wanna remove the radio app and install another, but tat just with root...kingo and kingroot doesnt work
[Android Head-Units] carlsberg112:
can you post your MCU ?
[Android Head-Units] shatch:
Not sure if this is the place but I'm having issues getting the head unit to pair with the OBDII . When I scan it can be found , it says tap to pair and it does nothing. Also, A Bluetooth scan shows something there in Chinese characters. I remove it and it keeps coming back. there IS NOT A LOT I WOULD REALLY CHANGE ABOUT THE HEAD UNIT BUT I WANT TO USE MY obdii
[Android Head-Units] antonio2k:
Hi,

Do you know if the firmware you attached supports this?

m.es.aliexpress.com/item/32669808886.html
[Android Head-Units] nosidefcp:
yes it does. just check when the unit arrives if its the quad or dual core and choose the fw
[Android Head-Units] Tratas:
Hi,

i have a quad core. But no root. :(

can you tell me how i can root?

This is my Head Unit

ww w.aliexpress.com/item/Quad-Core-Android-4-4-car-dvd-player-gps-2Din-7-Inch-For-Volkswagen-VW-Skoda/32321954979.html?spm=2114.13010608.0.0.0RlJVJ

With Android 4.4.2
[Android Head-Units] chismaster69:
Hi there, I've bought a wifi odb2 scanner from eBay which seems to work, I also had an issue with my Bluetooth scanner not working.

Apart from that the player is actually ok, I would like to root, though. For instance, I'd like to change the default music player to poweramp or something similar so that when I press the hardware buttons on the side poweramp comes on instead of the pre-installed garbage.
[Android Head-Units] joao roriz lima:
some unit same problems

hello i have the exact same unit but app versio 2.1 mcu 1.12 some was talkin about the 1.15

and wath about root ?? any news?? also have the same bluethoot problem only pairs with phones

tanks every one ;)

also ...

found this on rooting allwiner

this is a copy from theregister site

This is what a root debug backdoor in a Linux kernel looks like

Allwinner's all-loser code makes it into shipped firmware

reddit Twitter Facebook linkedin 159

9 May 2016 at 23:20, Richard Chirgwin

A root backdoor for debugging ARM-powered Android gadgets managed to end up in shipped firmware – and we're surprised this sort of colossal blunder doesn't happen more often.

The howler is the work of Chinese ARM SoC-maker Allwinner, which wrote its own kernel code underneath a custom Android build for its devices.

Its Linux 3.4-based kernel code, on Github here, contains what looks to The Register like a debug mode the authors forgot to kill. Although it doesn't appear to have made it into the mainstream kernel source, it was picked up by firmware builders for various gadgets using Allwinner's chips.

It's triggered by writing rootmydevice to the special file /proc/sunxi_debug/sunxi_debug. That gives the current running process root privileges. If that file is present on your device or single-board computer, then you need to get rid of it. This is the code that checks for the magic write:

if(!strncmp("rootmydevice",(char*)buf,12)){

cred = (struct cred *)__task_cred(current);

cred->uid = 0;

cred->gid = 0;

cred->suid = 0;

cred->euid = 0;

cred->euid = 0;

cred->egid = 0;

cred->fsuid = 0;

cred->fsgid = 0;

printk("now you are root\n");

}

Tkaiser, a moderator over at the forums of the Armbian operating system (a Linux distro for ARM-based development boards) notes there's a number of vulnerable systems in the field.

As tkaiser writes, echo "rootmydevice" > /proc/sunxi_debug/sunxi_debug "from any process with any UID will get root, and it's probably remotely exploitable if combined with networked services that might allow access to /proc."

He adds: “This security flaw is currently present in every OS image for H3, A83T or H8 devices that rely on kernel 3.4.”

As well as all Orange Pi images except for Armbian's freshly patched 5.10, these vulnerable gadgets include ARM dev boards from FriendlyARM, SinoVoip (its M2+ and M3 Banana Pi boards), Cubietruck, and LinkSprite's pcDuino8 Uno.

There are probably other products out there using the Allwinner

any one knows if its possible it works for us ??
[Android Head-Units] dclick:
Hello,

Do you have any news about the root of the Bx-411 t3?

Thanks!
[Android Head-Units] Jay_brown47:
Similar problems

I have the quad core model. No access to root as of yet. The seller sent me an upgrade file which doesn't boot. I can't seem to find anyway to make my i-bus work for the steering controls.

Anyone considered windows 7 ? :D
[Android Head-Units] nosidefcp:
The only think i can tell you about this unit, after a few months, as OP, is to you to sold this as quick as you can. Pure crap units. Sell them for 100eur on eBay, ans buy the thonghai units
[Android Head-Units] dclick:
Sorry for you. Mine works well for now..

It just lacks root access ;)
[Android Head-Units] pepelako1:
hi, i modeed rom

1-unpack in fex

-with image respacker 2.0.5 (windows) and copy system.fex

2-modify system.img with linux mounting ext4

in linux (i used ubuntu)

mkdir system

simg2img system.fex system.img

sudo mount -t ext4 -o loop system.img system/

modify archives (delete, copy and modify) with terminal

dont forget chmod

3-repack system.img in system.fex

in linux

rm system.fex

sudo make_ext4fs -s -l 768M -a system system.fex system/

sudo umount system

rm system.img

4-repack img for phoenix card

in linux copy a new system.fex created

with the system.fex created on linux paste and overwrite old system.fex extracted in folder dump respacker

now repack in windows with respacker and burn image with phoenixcard

and... works,!!!

change bootanimation and bootlogo, but no root access in device.. i dont know integrate su binary in system.img

i try put su and supolicy binary in system/xbin

arm7 arquitecture but no luck... any ideas, little help needed

I HAVE A QUAD CORE VERSION, BUT DUAL CORE SYSTEM EDITING IS IDENTICAL

to change first boot image it too easy.. only mount boot-resources.fex with imgdisk and edit bmp with your favorite image
[Android Head-Units] dclick:
thanks for your work.

But I have to be root to access the system folder?
[Android Head-Units] vini47:
360 Root
[Android Head-Units] DrTrax:
Not possible!

The DPI on this device is too high, the "root" button is overlapped by the other icons below!

I wasn't able to navigate blind with a keyboard and ADB over Wifi also don't work (Connection refused even if I activated ADB Debugging)

I also want to ask whether it support multitouch, I read several time something about 5 finger multitouch but I have only a single touch!

UPDATE:

Fixxed the problem with multitouch! I installed the FW and MCU from the first post and now everything works fine (excluded root of course!)
[Android Head-Units] pepelako:
you can modify all files of system in linux with my instructions, but root access is prohibited on boot.img, i try modify boot.img but no working.. selinux not change
[Android Head-Units] DrTrax:
I have root on my T3 Quadcore (BX-411) ...

but it is inaccessible! Busybox and RootChecker tell me that there is an issue with my root or something blocks the root status...
[Android Head-Units] DrTrax:
I have root! I have root on the T3!

My recommendation: Play with everything!

KingoRoot + 360Root (#940 and the newest version with help of Fulscrn Free because the DPI is so high that the button is hiden unter the clouds) and a little bit of checking SU with the terminal emulator.

I think that the system somewhere make a mistake like the rootmydevice backdoor from the orange pi (sunxi_debug) and then everything works fine.
[Android Head-Units] hugomlmc:
Hi

Can you explain better the footsteps ?

btw my got stuck at logo icon , and i contacted the seller, they send me the last firmware for the quadcore unit .

I cant put here the dl link
[Android Head-Units] DrTrax:
Upload the FW to mega.co.nz and paste it here please.

What I did was something like try and error.

I installed 360root (attachment) and tried over and over until it want to try via a pc. Took the ACC out and in (to fully restart the device) and then try again and again. Suddenly I saw the numbers counting to everywhere though I didn't initiated the rooting process and knew that something changes. Installed RootChecker immediately, startet and got a message from 360root, asking for permission (left is OK and right with the countdown is DENIE!).

Unfortunately, I wanted to use SuperSU instead 360Root and tried to overwrite the SU binaries but without recovery => impossible!

PLEASE, DON'T UNINSTALL ANY ROOTING APPS OR YOU'LL LOOSE YOUR ROOT!

But I did it and had to go over... but here I realized that something changed again, it was more difficult to get root so I uninstalled 360root (when I noticed that it doesn't tried anymore), installed the latest version of 360root and try and error again, over and over.

You'll need this (https://play.google.com/store/apps/details?id=me.dt2dev.fullscreen.free) because the DPI is so high, that you can only touch the circle if the top bar disappears (don't worry, app don't need root for that)

Sometime I tried KingoRoot and then 360Root and again and once KingoRoot and and and, I think it is more positive if the device restarts by itself because this means, that something got messed up which leads to a mistake by the allwinner kernel which leads to root!

Very important: This rooting process (approved by 4pda.ru) is not like on the go. It takes a lot of patient and try and error.

I made a nandroid of my system so I can provide a rooted system. Problem is that I can't extract the firmware and swap out the whole images so someone else have to do this.
[Android Head-Units] hugomlmc:
Hi

360 root works with a little patient :)

Now i have root , thanks DrTrax
[Android Head-Units] DrTrax:
Interesting news: I made it to add superuser into a stock rom and boot it successfully!

Bad news: You can not install the rom! It looks like the device checks the files before flashing, definitely something what PhoenixCard does not do!
[Android Head-Units] DrTrax:
https://mega.nz/#!gsQhmLjD!louehnwA7t3Ic0ZXNaqmKtV4ges8f2EwUxm8EZRgiNM

1. PhoenixCard => burn .img to sd card

2. flash with sd card to head unit

3. after flashing android 6.0 => insert sd card with os_update_xxx.zip and manuall update

4. after update => update mcu.bin

TADA! Android 6.0!
[Android Head-Units] antonio2k:
Woww

How does it work? Does the system feel fast? Is rooted?
[Android Head-Units] DrTrax:
You have to burn the image with PhoenixCard after pressing "Format to Normal" and then start the head unit with the micro sc card in the front slot. Warning! You might have to remove any second micro sd card and the hidden one behind the screen (just remove the screws from the side and carefully flip the screen downside.)

Faster? Oh yeah, pretty fast :)

Rooted? No, KingRoot will do it but as before with 360Root, you'll need patience!
[Android Head-Units] antonio2k:
Does the device have a card hidden behind the screen? :eek:

On the other hand, How much free space is left to install apps?

If you upload some photos or video would be great.

Thank you!
[Android Head-Units] Kazadorng:
Hi Dr. Trax.

The steps that I followed:

1.- I have used phoenixcard in Windows XP (does not work in Windows 7/8/10), flashed the micro sd and started the car radio with the SD inserted. It showed a bar in progress and a final "CARD OK".

2.- Restarted the radio and have Android 6.0 installed and working.

3. Then I inserted another micro sd with the update zip file and mcu.bin file both at the same time contained in the root directory.

4. I tried everything to manually update the zip file but, before updating the system, I accidentally updated the mcu.bin file before achieving the zip update.

5. Now I have a unit working but the physical buttons are not working and now lights in blue (way better than red according to my preferences).

I think that my problem is easily solved: I just have to update the system with the zip file. How can I do that? I tried with the RST and POWER buttons but it's my first time using this unit and I don't know how to do it. I would really appreciate any help.

Thank you.
[Android Head-Units] DrTrax:
Just delete mcu.bin and let update_os.zip alone in the root of your sd card.

BODAupgrade somehow prefer update the MCU and then checks for any other files which is pretty lame.
[Android Head-Units] antonio2k:
How install the ZIP manually?

From the recovery menu?
[Android Head-Units] Kazadorng:
Hi!

Just inserting the micro sd card with the zip file into the radio don't do anything (the opposite with mcu.bin file). I know that I need to get to the recovery menu in order to install the zip file but I'm in trouble because the buttons are not working any more and I think the sequence to enter recovery is the next one (I find it in other posts):

1. Hold RST button and POWER at the same time.

2. Wait 5 seconds.

3. Release RST button and wait 5 seconds.

4. Release POWER.

This is the correct way to get to recovery menu? Is the answer is yes, I'm screwed because POWER button in my case is not working as all my other physical buttons (they now shine in blue after the mcu.bin update).

Any ideas or corrections? Thank you all in advance.
[Android Head-Units] DrTrax:
Very strange since in my case, I updated the zip in android but I heard several time that it also didn't worked so in this case, I am also screwed.

You could try to flash the .img again and then update the zip in recovery.

You also could try to use a keyboard with the usb port. I did it with many devices, could also work with the head unit.
[Android Head-Units] Kazadorng:
Hi.

Reflashing the img results in the same scenario: still blue lights in buttons an also still not working. I will try the USB keyboard. Hope I can get into recovery mode. Other option I am considering is to root the unit and then restart to recovery with ROM Manager for example.

Ok, I have learned how to remap the buttons: in the menu hidden at "about your phone", there's an option called "key learning" and now I have my buttons back.

In other hand, bluethooth is no longer working and apps like spotify tell me there is not enough space to download songs (when is false and in the previous version worked and downloaded like a charm).

I will try with adb software to "adb reboot recovery", but I need to find before how to enable developer settings because it's hidden.

With the keyboard I don't know any combination to force into recovery start, so another dead end to me.
[Android Head-Units] DrTrax:
Developer Options: Download any shortcut creator app and use it to get directly into developer options

Bluetooth: It's dead unfortunately... I dunno why and I don't rly care since I also need Xposed which is impossible to install on Android 6.0 because the stock recovery refuses any zip without certificate/... so I change back to 4.4.2 but I will create a custom rom with removed bloatware, replaced some apps like launcher and reactivate bluetooth for file transfer or remote controls!

They blocked bluetooth from any changes and I still don't know how or what...
[Android Head-Units] DrTrax:
How did you packed the firmware?

I unpack with AllWinner ToolsV2, extract system.fex with Tool Unpack Repack System.New.DAT + System.IMG, remove/add/edit some files, repack everything but I only can start my firmware via sd card, burning/flashing won't work, stuck at the half of the progress bar.
[Android Head-Units] pepelako:
Repack only worked for me in Linux, and on Windows Burned img With phoenix
[Android Head-Units] DrTrax:
I realised that I used imgRePacker 2.0.4 instead of 2.0.5... so pity...
[Android Head-Units] Kazadorng:
Hi DrTrax. Thank you for your help.

It's sad the bluethooth problem because Android 6 performs better (in my opinion) than 4.4.2. I will wait for your custom rom to rollback again (hope you will share it here xD).

Regards!
[Android Head-Units] DrTrax:
https://xdaforums.com/android-auto/android-head-units/bosion-bx-411-allwinner-t3-quadcore-t3580495
[Android Head-Units] beke1976:
Does not start anymore

Hi ,

I have a Bosion BX410 and I tried to update it to android 6.

After I added mcu.bin my unit not start anymore.

Can someone help me?

Thanks,

Beke
[Android Head-Units] BENAN94:
Hello Every body

Can some one send me the launcher please ?
[Android Head-Units] elmont14:
If anyone is looking for the latest 6.0 and MCU for this unit here's the url to the files that I got for the seller. I also found their website kcbosion.net.

https://www.dropbox.com/sh/q2ihk88hb8n695x/AABxcsfjmAjwsIxEzy7anLrYa?dl=0
[Android Head-Units] hugomlmc:
Hi

Do you test this ??

Regards
[Android Head-Units] elmont14:
Yes I did, it worked with no problems.... although I don't have it installed anymore due to crappy mic
[Android Head-Units] hugomlmc:
I update mine too , but my radio if upgrade the mcu stops working have to update with a mcu of android 4 .

The rest , worth the update !!
[Android Head-Units] elmont14:
Interesting, didn't have that issue... really depends on which mcu, you've upgraded from
[Android Head-Units] jlaso1982:
Hello, I have the 412 model and after an error with a update I can't get the settings menu and some preinstalled apps does'nt work propertly. I' ve tried to flash the unit but phoenix card always give me errors. Does exist any method to access the recovery menu out of Android? Thanks in advance
[Android Head-Units] yiatsou:
Hello,

a friend bought for his car a Chinese head unit with the following hardware parameters:

Processor : MTK 8127

Frequency: Quad core cortex -A7 1.3 Ghz

Image processor: Mali 400 400Mhz

Ram 1GB DDR3

Rom 16GB nand flash

Resolution 1024*600

It says android 7.1 but I believe its 4.2

I attach also a picture that appears the MCU information etc.

Can you suggest me a custom rom file for this unit in order to solve the problems which are the same as they are described at previous threads ?

Thank you in advance
[Android Head-Units] hugomlmc:
For those who are willing to try the android 7.1 on this unit you can try this :

DO THAT AT YOUR OWN RISK !

The user joseph993 in the thread Bonroad C1067106A3 Allwinner QUAD CORE T3 P3 2GB RAM 16GB ROM 6.0.1

I try with this unit since its the same without buttons and it worked fine .

The only thing i cant managed to put to work its the bluetooth module dont detect , probably missing driver .
[Android Head-Units] carlos_graniel:
Hi,

I really need help. I purchased a Bosion BX-410 radio. It all worked fine, but it appeared that the access to Google account was blocked, so I couldn't get access to Play Store. I contacted the seller and they send me the APP and MCU update, but in the process when it restarted I lost image on the display... Everything works, even the touch is recognize, but mostly displaying any image. Can someone help me what to do? I've tried to get to recovery mode but I couldn't get it
[Android Head-Units] T00VZ:
Would this work on https://www.aliexpress.com/item/32960120438.html?spm=a2g0o.order_list.0.0.21ef1802KMqk3P my stereo shows welcome screen then black (backlight working, nothing else) i am a bit stuck