I recently bought a generic android head unit from Ali Express. It actually works well but I really need to connect it to a CAN bus and write some additional software (background: I want to replace the factory unit in a Nissan Leaf, so it needs to display some vehicle info, show the heater settings and set up the charge timer). I have experience in Android app development and embedded Linux, but I'm still a 'noob' when it comes to Android hacking (root access etc).
I'm pretty sure I will need root access to do what I want. It has 'CAN tx / rx' pins on the back, and I am pretty sure they are wired to one of the serial interfaces internally (I will need an adapter to convert UART to CAN as well). I played around with an app to access the serial ports (i.e. ttyxxx) but I didn't have permission to use many of them - probably the ones I wanted!
I don't want to re-write the existing music player, amp control and radio; I just want to add a new app to carry out my vehicle-specific functions.
I tried the root process given here but it didn't work.
Here are the device details:
Model: S07
MCU Version: MTCB-HA-V2.60
Android Version: 4.4.4_01062015
Kernel Version: 3.0.36+ [email protected] #278
CPU: ARM7 1.6G x 2
CPU/SOC is an RK3066 on a modular board. Pictures attached.
It doesn't have any physical buttons except reset - there are touch sensitive buttons for power, back and volume. It has one SD card slot for map data and no USB on the front (several on the back).
I haven't figured out how to get to the recovery console, or connect it to a PC via USB.
Any suggestions for how to root? Or get to recovery console?
Anyone else with a similar device?
Check out the Huefi thread above. It has everything you need. first page covers root. basically, download the rom you want, put it on the GPS SD card, insert it, and wait for it to ask you to update. Once you do that, it will be rooted. there is no other way to root it if it has 4.4.4. DO NOT INSTALL A MCU file for it unless it is for HA devices. HA is the manufacture of the unit, and if you use an MCU file for a different device, you run the risk of loosing the physical buttons on the unit. This can be repaired by going into recovery and flashing the HA MCU, but that is a lot of extra work
Hi! Thanks for your reply.
I was wary about installing a new image because I don't want to lose the existing radio app and amplifier controls (which are specific to the device rather than the RK3066 SOC module, if I have understood the structure correctly).
* Would a new image replace these apps, or are they actually in the MCU firmware anyway?
* Can I back up my current image first? I looked at some backup tools, but they all needed root access... =Catch 22.
Sorry for noob questions... I'm getting the hang of Linux but still new to messing with Android at a low level. I'd love to play around with a stripped Ubuntu or similar on the device, but I don't want to have to write my own software for the radio parts - at least not yet.
BTW do you know how the bootloader system works? Is it possible to boot from SD card or USB (therefore allowing some other OS to be booted without replacing the onboard image)?
MayfairDROID said:
Check out the Huefi thread above. It has everything you need. first page covers root. basically, download the rom you want, put it on the GPS SD card, insert it, and wait for it to ask you to update. Once you do that, it will be rooted. there is no other way to root it if it has 4.4.4. DO NOT INSTALL A MCU file for it unless it is for HA devices. HA is the manufacture of the unit, and if you use an MCU file for a different device, you run the risk of loosing the physical buttons on the unit. This can be repaired by going into recovery and flashing the HA MCU, but that is a lot of extra work
Click to expand...
Click to collapse
jcolebaker said:
Hi! Thanks for your reply.
I was wary about installing a new image because I don't want to lose the existing radio app and amplifier controls (which are specific to the device rather than the RK3066 SOC module, if I have understood the structure correctly).
* Would a new image replace these apps, or are they actually in the MCU firmware anyway?
* Can I back up my current image first? I looked at some backup tools, but they all needed root access... =Catch 22.
Sorry for noob questions... I'm getting the hang of Linux but still new to messing with Android at a low level. I'd love to play around with a stripped Ubuntu or similar on the device, but I don't want to have to write my own software for the radio parts - at least not yet.
BTW do you know how the bootloader system works? Is it possible to boot from SD card or USB (therefore allowing some other OS to be booted without replacing the onboard image)?
Click to expand...
Click to collapse
I cant help with the bootloader issues, but I can with some of the others:
-Radio and Amplifier apps are the same on all units, or should I say is compatible across all units. If you were to go into the settings, then factory settings and enter 126 as the password, you can see all the settings you need to make sure your unit functions after upgrading your rom image.
-You can not back up your factory image. its not possible. You can always reach out to your seller and ask them if they will send you a copy of the factory firmware.
MayfairDROID said:
I cant help with the bootloader issues, but I can with some of the others:
-Radio and Amplifier apps are the same on all units, or should I say is compatible across all units. If you were to go into the settings, then factory settings and enter 126 as the password, you can see all the settings you need to make sure your unit functions after upgrading your rom image.
-You can not back up your factory image. its not possible. You can always reach out to your seller and ask them if they will send you a copy of the factory firmware.
Click to expand...
Click to collapse
SUCCESS! I just downloaded and installed the latest image from Malaysk (I think?) and it looks like it is working well! Radio, music player and amplifier work, and I have root access. Woo! So far so good... Thanks!
Hello Friends, I read your post. Like anything happens
I want to update my Car Stereo Radio Head Unit
Here are the device details:
Model; S07
MTCB-JY-v2.44
MAR 24 2015 9:46:14
ANDROID VERSION 4.4.4_25032015
kernel version
3.0.36+
ROOT @ UBUNTU # 766
Build number
rk3066.eng4.4.4 25032015.13: 08: 43
CPU
arm7 1.6 GHz (x2)
But that is not the screen resolusion 880 // 1024
Knowing that I have to Huifei / KGL, Klyde, or RoadMaster
Thank
aribetty7811 said:
Hello Friends, I read your post. Like anything happens
I want to update my Car Stereo Radio Head Unit
Here are the device details:
Model; S07
MTCB-JY-v2.44
MAR 24 2015 9:46:14
ANDROID VERSION 4.4.4_25032015
kernel version
3.0.36+
ROOT @ UBUNTU # 766
Build number
rk3066.eng4.4.4 25032015.13: 08: 43
CPU
arm7 1.6 GHz (x2)
But that is not the screen resolusion 880 // 1024
Knowing that I have to Huifei / KGL, Klyde, or RoadMaster
Thank
Click to expand...
Click to collapse
Hi, I also didn't know the screen resolution, and it is not mentioned on the "About" screen.
In the settings menus, I found some options for recording a video of the display (I don't know why!) and the maximum resolution there was 1024 x 600. I figured that you wouldn't bother to record at higher res than the screen had, so the resolution must be 1024x600. This seemed to work!
My stereo has absolutely NO branding on it anywhere so I don't know whether it's a clone of Huifei or something else, but it worked with the "Malaysk" firmware, which I downloaded from the Huifie file repository (linked from here), under firmware->Malaysk ROM->Malaysk DualCore RK3066).
I picked the bottom one (12th Jun 15, 1024x600 with different launcher).
jcolebaker said:
Anyone else with a similar device?
Click to expand...
Click to collapse
I just installed the same unit. Only complaints are streaming music via Bluetooth only works if you open up the Bluetooth app (probably because android doesn't act as a Bluetooth sink). The other issue is, I cannot seem to change the brightness of the screen...its a touch too dim for daylight (I have a convertible) and a bit too bright for nighttime.
Glad to see you got a custom rom working.
Hey jcolebaker, do you think you could post what the LCD model number is? Is it a Hannstar HSD070IFW1-A?
Sent from my Nexus 6 using Tapatalk
vdubskey said:
Hey jcolebaker, do you think you could post what the LCD model number is? Is it a Hannstar HSD070IFW1-A?
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Sorry not sure what the LCD is - I don't want to pull it apart. It has a board on the back which has the following on it:
BL-TFT-V2.2(HCT)
That's soldered to another board that says:
P/N:BL-7inch-7000-KB-V00 20150311
Update question
Do I burn the update.img file to the sd card or do I simply copy it? And does it have to be my gps sd card or can it be a spare blank one?
Thanks
---------- Post added at 11:06 PM ---------- Previous post was at 10:42 PM ----------
dovoto said:
Do I burn the update.img file to the sd card or do I simply copy it? And does it have to be my gps sd card or can it be a spare blank one?
Thanks
Click to expand...
Click to collapse
Doesn't appear to be an img file in the context of "burn it" so I think that answers that question (just copy it) The head unit doesn't seem to do anything when I drop it in though (either with it on when I insert it or with it already inserted during a reset). Any thoughts?
dovoto said:
Doesn't appear to be an img file in the context of "burn it" so I think that answers that question (just copy it) The head unit doesn't seem to do anything when I drop it in though (either with it on when I insert it or with it already inserted during a reset). Any thoughts?
Click to expand...
Click to collapse
The file should be "update.zip". I used a new SD card - try formatting one with FAT32.
You just copy it to the card and insert it - I think the stock Android image automatically checks for update files that look like this, and loads them. This process worked OK for me - if not then hopefully someone here knows more about the update process than me.
HI !
I also try to root my 2din android without success... I have the same as your and I fail to get recovery and the android can't detect the update.img (or update.zip)
I have tried many tips, my sd card is in fat32, well detected by android ...
Do you have the tip to access to the recovery ?
Thanks
Logicsystem360 said:
HI !
I also try to root my 2din android without success... I have the same as your and I fail to get recovery and the android can't detect the update.img (or update.zip)
I have tried many tips, my sd card is in fat32, well detected by android ...
Do you have the tip to access to the recovery ?
Thanks
Click to expand...
Click to collapse
I think the file is "update.img" not "update.zip". Anyway I have not figured out how to get to the boot loader on mine, and I never got any recovery console. Sorry I am too much of a beginner myself to suggest anything.
HI !
I also try to root my 2din android without success... I have the same as your and I fail to get recovery and the android can't detect the update.img (or update.zip)
I have tried many tips, my sd card is in fat32, well detected by android ...
Do you have the tip to access to the recovery ?
Thanks
Click to expand...
Click to collapse
Instead of flashing a new image, go to the factory settings and type in *#hct#root#
This should give you root, no need to flash a new image
Logicsystem360 said:
HI !
I also try to root my 2din android without success... I have the same as your and I fail to get recovery and the android can't detect the update.img (or update.zip)
I have tried many tips, my sd card is in fat32, well detected by android ...
Do you have the tip to access to the recovery ?
Thanks
Click to expand...
Click to collapse
Bonjour.
If you would like more than root and you're still having trouble getting into recovery with your Hot Audio RK3066 1024x600 2 DIN Head Unit, the steps below have worked for me when the system does not automatically detect the mcu or update.img.
*** Prior to flashing any OEM or Custom ROM firmware, I recommend using a backup app like Titanium to save all your existing apps and data to your external micro sd card or usb memory stick.
1) Install Quick Boot or a similar apk from the play store.
2) Attach a wireless usb or usb keyboard and confirm it is working as intended. I use a Lenovo N5902 but most usb or wireless usb keyboards should work for this task.
3) Make sure you have the update and or mcu image file on your gps micro sd card or an attached usb memory stick (not the zip file).
4) Open Quick Boot, select recovery, and the system will shut down and boot into recovery.
5) Use your usb keyboard to scroll or arrow down to the update option with correct img file location, then press enter to execute the mcu or android firmware update or both.
6) After you update the android firmware, it is highly recommended that you go into the Settings > Backup & Reset, and select reset to factory and check the box to delete all data from the internal sd card. This reset to factory and internal sd card wipe should give your updated android system a clean start and help avoid system issues due to left over data from the previous firmware.
7) Delete the mcu and or update image from your external micro sd card. Done.
Hope this helps...
Best to all,
R
wrong thread. sorry
Android dvd s07 update
Hi,
I want update my android car dvd mercedes w203 2006
MCU version: MTCB-KGL-V2.80
Android version:
4.4.4._07012016
3.0.36+
[email protected] #2321
I need files to update, please help
Hello, my device says MCU has stopped and i can't touch on my screen to make factory settings
Can someone give me some help?
What do i need to download to make the reset?
I search for hours and hours and nothing.
Thank you so much
Tried this from erisin website
E0056 ES8990G(Android 4 Core HD V2.72) Stuck in boot screen or other problem
I read the instructions, and when i start the device with file in sd card, it does nothing
Ok
Touch is working again, i download some kind of LM software and its working
But now the screen doesnt retain anymore. and most of the buttons doesnt work
Maybe i just install some kind of rom for 2 din head units
Still looking for original software to install on my unit
I email Erisin but i don't think i will get any aswer, the costumer service looks very poor
Finaly spoke to Erisin
They say that the head unit is not from their brand
What brand is this? Can someone tell me?
Installed the wrong software on it
It works, android looks the same, but i don't have bluetooth option and button to move screen doesnt work
How can i delete this " rom " ?
Here's correct firmware of not Erisin "DR7090 1 din android car head unit stereo, Android 4.4.4.'', 1024x600 resolution.
1. Please confirm the unit is in "off" condition
2. Copy all files (not folder) into a SD card root, plug the SD card into GPS card slot, turn on the radio, it will begin to update automatically...
3. After "OK", unplug SD card and restart unit.
1721831 DR7090 Update.rar
I have the same DR7090 radio with the same firmware uploaded by demiro and I still have bugs to use.
Do you know the brand or if there is already more updated firmware ??
Or if there is some alternative ROM that works better ...
Greetings comrades!
Jordee
I had this unit for some 2, 3 weeks now, and while it worked great initially, all of a sudden the radio app started acting up.
It starts with some garbage displayed (e.g. 'jV!fxcj') instead of radio station name, and it is not responsive at all. If I manage to get to home screen or to anywhere else, it will just pop back up to the front, and it keeps happening constantly, Sometimes, after doing who knows what, I manage to kill it, and I can use the rest of the head unit, but that happens rarely. I also tried going to the settings -> apps, and killing the app from there, but it doesn't help.
I hard reset the unit, and the radio worked fine for about five minutes, and then it started happening again. Is there a way to at least disable the Radio app somehow, so the unit is usable in some capacity?
I have exactly the same issue on my TR771L. I got an MCU update link to load onto an SD card but haven't been able to get it to install on the unit.
The looping is really annoying especially at night.
EDIT:
Android version 8.1.0
MCU version T8.3.19-36-10-E53201-180726
System version V9.3.1_2018082.102205_MLT5
I had that problem too and did an firmware update and it seems to be ok now
This might be a stupid question, but where do you get the firmware update from? Is there a custom ROM to be installed on it as well?
I was always confused by many similar but different headunits, and was never sure if something would work on mine or not. Is it PX5? Is it MTCE? Is it none of these? Sigh.
On a positive note, it seems to work better now. I uninstalled the automate car dashboard and know it happens rarely if ever, and even when it does, a hard reset with a pen solves it.
Well, I contacted xtrons with a request for the update file, and they provided a link - https://1drv.ms/u/s!AjrY0uqbW_kBk36dRnJD4d_aaej8
This is a system update file, and after I went through the versions I have are:
Android version 8.1.0
MCU version T8.3.19-36-10-E53201-180502
System version V9.3.1_20181012.103419_MLT5
4x4Rob said:
I have exactly the same issue on my TR771L. I got an MCU update link to load onto an SD card but haven't been able to get it to install on the unit.
The looping is really annoying especially at night.
EDIT:
Android version 8.1.0
MCU version T8.3.19-36-10-E53201-180726
System version V9.3.1_2018082.102205_MLT5
Click to expand...
Click to collapse
You need to extract the files from the RAR file, put them on the SD card or USB, connect it to the head unit, go to Settings -> Car settings and then scroll down and choose MCU update or System update. Depending on the file you got, it should detect the update files and ask you if you want to reset the sd card/usb (I choose no just to be safe) and it took a bit of time to update, and the start loading animation (xtrons) took a bit more time than usual, so don't worry about it.
Hello all, i have tryied to update my headunit to android 8 using PhoenixSuit, the upgrade process had gone right, but the headunit locks on the android start screen. And i am struggling with it for some months now.
I am unable to make it be recognized by phoenix suit again, nor make it boot to an USB or Mem card made by phoenixcard.
the only thing i could get was it to start in recovery mode, so it read files like:
51eb6df0-cad7-11e8-bf31-afdca4ac0826
52c7b3fa-cad7-11e8-8188-57adc8d05072.0
52c7b3fa-cad7-11e8-8188-57adc8d05072.1
etc.. the name of the files vary according to the "uboot" file i load on the headunit.
I have tryied lots of files gotten from russian foruns, etc to no sucess, even the original files that i got from the maker fails to start the unit.
If i had to guess the problem that make me unable to restore the original android 7.1 i got from the makers, it would be the partitions number and size, i think phoenixsuit had recreated the partitions in the upgrade process and that recovery mode does not change it... so any android that is not the version 8 (that seens to not work on my unit) does not get even to the start screen.
If someone can give me some tips on how to solve this, i had alread tried anything i could understand from the russian foruns and from here to no sucess
Thanks in advance.
So nobody knows how i can get into a "command prompt" mod where i can remake the system partitions or how i can get the headunit to boot from a phoenixcard created USB?
Hi, i need mcu for my android 1din car player, can someone help, i ask many peoples and they dont have it, if someone can help. My car audio player is cyclon 7101a