yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] krisboats:
My wifi signal is reachable from about 10metres from my house. Guess it depends on the car for signal strength.

To import the start up image it has to be a 24bit bmp file, on a usb stick and placed into the usb on the front of the unit. The image file has to be named ly_poweron_logo.bmp and the unit should find it automatically. If not, go into the device settings, enter the 66668888 code and select import picture. Once it's loaded it to the device you'll find it at the end of the list of logo's. Currently looking to extend/re-assign the app space now the device is rooted.
[MTCB Android Head Units Q&A] Habieru:
I'm going to try again saving as 24bit bmp, though i'm pretty sure i already did so...

Anyways, i hope you succeed in doing that repartition and share your findings with us. From what i know, that has to be done from recovery or by modifying the firmware images, so i believe that a custom recovery is a must for that task. I did that a couple of times with an old RK3066 and RK3288 tablets and the procedure was the same for both.

The best repartition method should be to have the internal 16GB fully for app instalation and mount the data SD slot as /sdcard0/ wich is where all the data and big files from navigation soft and games always go.
[MTCB Android Head Units Q&A] allexey1:
Hello guys,

I received the device and installed it on my Megane 2 from 2006. Now I have an issue. How should I connect the steering wheel commands? I searched on the web and apparently I should have CAN-bus commands, but I'm not really sure. i tried to insert a link, but, the system does not let me. Just search for renault updatelist on google Maybe someone know how to connect it.

And another question. How have you connected the rear view camera? On CAN-bus or direct line?

Thank you in advance.
[MTCB Android Head Units Q&A] sajtqkac1993:
GPS problem

Hi,

I've finally got my device from China and already built in my Ford Focus. Everything is working fine, except:

-the bottom of the display is missing a bit (the black plastic frame of the device is over the bottom edge of the display. Is there anything to adjust the display?

-I can't get the GPS to work. I placed the gps antenna on the dashborad right under the windscreen. I've seen some settings for the GPS in function and setup settings, tried all combinations but still not working. The next thing I'll do is to shorten the cable of the antenna and crimp a new SMA connector onto it because there is about 2 meters of cable I don't need. OR/AND, I'll open up the device's cover to check if everything is okay with the GPS ant connector because when it arrived, it wasn't tightened to the housing, and it could spin in the hole, seemed like the cable from inside is broken... BUT, if none of the stuff above helps, is there any setting trick which can make the GPS work?

Thanks for the replies in advance!
[MTCB Android Head Units Q&A] krisboats:
I've repartitioned the sdcard to add an ext2 partition and after rooting the device i've been able to extend the primary partition onto a 7gb partition on my 32gb card so plenty of space for downloading and installing apps now. Moved the installation files from the 1gb internal partition so thats got about 500mb free now. I was down to 14mb free on the internal partition and the unit was getting slow. Much quicker now. Still have 5.5gb space for apps so more than i'll ever need in a car.
[MTCB Android Head Units Q&A] Habieru:
Wow, that's amazing.

I just rooted mine yesterday using KingRoot as well. How exactly did you extend your primary partition using the SD card?, do you mind sharing here the steps?

---------- Post added at 10:48 PM ---------- Previous post was at 10:39 PM ----------

Try looking in the setup menu and check if GPS TYPE is set to NEW. I have it set like that and it works perfectly. If that does not fix it, your best bet is to dissasemble the device and check if the sma connector is properly soldered.
[MTCB Android Head Units Q&A] sajtqkac1993:
Thanks for the tips, I'll check out everything, and will share the results just in case if someone facing the same issues...
[MTCB Android Head Units Q&A] Chewi3:
See attached some photos I took of the insides in case this helps anyone.

Looking at the wifi antenna explains why the performance is not great!
[MTCB Android Head Units Q&A] lanman31337:
I got one of these radios, first had a bad lcd screen. Sound is good for sure. Doesn't like my 64 gig usb drive though. Waiting to see what can be done about the stock rom.
[MTCB Android Head Units Q&A] pano 78:
cat /proc/mmc?
[MTCB Android Head Units Q&A] sajtqkac1993:
Am I the only one who can't these pictures? Could you please try to upload them again? I'm interested to see them. Thanx
[MTCB Android Head Units Q&A] sajtqkac1993:
GPS problem solved

So, I knew that I probably have to wait about an hour for the GPS module to gether all the satellite's orbit data before it starts to work. It took 2 days, but finally from now, it is working fine, and fast. I only have to wait a few seconds after startap to know where I am.
[MTCB Android Head Units Q&A] Chewi3:
Hi - apologies for that, I have re-uploaded them and they seem to be visible now. If you still can't see them let me know and I will upload them elsewhere.

https://xdaforums.com/showpost.php?p=70351763&postcount=96
[MTCB Android Head Units Q&A] monza20vt:
So after my other unit stopping working I believe I had a faulty unit. I decided to buy another one and have fitted it to the car today. The screen on this one doesn't seem to fit the frame properly but otherwise seems a bit better built and slightly updated software it would appear.

I rooted it with kingroot, the latest version didn't work but the one Bricomann linked to earlier version did work after tapping the bottom of my screen lots to hit the hidden section of the button. after this it counted up and rooting was successful.

I did an adb reboot recovery from terminal and got the android robot laid on his back with an ! mark but no further. I'm cautious to tinker too much as yet but can take some good pics of both sides of the boards and stuff as I still have my old unit here :)
[MTCB Android Head Units Q&A] Habieru:
Actually, i can't even see where is the WiFi antenna. Could it be those "F" shaped tracks on top of the Realtek SMC?

---------- Post added at 01:28 PM ---------- Previous post was at 01:22 PM ----------

@krisboats Thank you for that post, i totally forgot about link2sd. I used the hell out of that in my Galaxy Mini and Xperia Mini Pro days.

Now i have my unit completely setup with a 32GB SD and 4GB ext2 partition. Works flawlessly.
[MTCB Android Head Units Q&A] Chewi3:
Yes, the square blue board is a Realtek RTL8723BU (WiFi and Bluetooth module). I am assuming that the 'F' shaped track (marked TP14) is the antenna. I wonder how easy it would be to solder a larger antenna to the board?
[MTCB Android Head Units Q&A] nixfu:
>I do not see any reason why you should not be able to use tethering either thru usb or bluetooth.

FYI, Tethering via USB does not work on these devices, the android does not seem to have the required USB drivers typically.

The only real way to do tethering on these devices is via a wifi hotspot on a phone etc.. That is how everyone is using them today.
[MTCB Android Head Units Q&A] krisboats:
Got some questions now.

In the settings theres a bunch of options i cant seem to find a purpose for.

Stop setup: open setup

Large lamp: open check

Electronic dog: electronic broadcast

I also cant seem to get the unit to auto dim the screen when headlights are switched on. The orange wire at pin 9 is connected to my dash lights wire on the loom and the setting for button lights is set to "comes on with headlights" but nothing happens when switching on headlights.

I also cant for the life of me turn of traffic updates so it keeps switching to the radio randomly.
[MTCB Android Head Units Q&A] Guntere1:
Bricked unit

Apologies if I'm posting this incorrectly, I'm new to forums.

I bricked my unit when I incorrectly installed a new bootanimation.zip and now cannot boot into any sort of recovery mode. I'm pretty sure I set the wrong permissions on the new bootanimation file :(

Can anyone tell me if they have successfully booted into recovery and if so, how.

Thanks in advance.
[MTCB Android Head Units Q&A] Habieru:
In my Hyundai Tiburon i have the unit connected with a standard ISO cable harness and the dimming works correctly. It should be an orange wire. If your car has a standard ISO connector make sure that orange wire is in place with your car's orange wire as well.

That "comes on with headlights" option changes the unit Home and Back buttons illumination, comes on with headlights lights them up when turning on your headlights, wich also should dim the screen if your wiring is setup correctly.

About the other two options i have no idea either what they mean with "Large lamp" and "Electronic dog". I guess someone at their factory skipped a couple years of english lessons.
[MTCB Android Head Units Q&A] krisboats:
Mines in a land rover so all wiring was done by myself and doesnt conform to colour codes haha. My ill wire is hooked up to the panel lights wire, which is outputting a voltage when side/headlights are on. The head unit doesnt seem to be sensing this however so maintains full brightness.

Guess the two random options will remain a mystery forever haha.
[MTCB Android Head Units Q&A] krisboats:
Nope, after removing my head unit today to fit some LED light bar switches, the large lamp tickbox actually turns out to be the autodim when headlaights are on. So that system is all up and running now even though the wiring hasn't changed at all :eek:
[MTCB Android Head Units Q&A] Habieru:
Great news! I'm glad you sorted it out in the end.
[MTCB Android Head Units Q&A] Habieru:
So far i am really happy with this headunit and all it's features, but there is something that has been bugging me for the past days.

How do you guys deal with the sun glare?. On sunny days, specially in direct sunlight the screen is literally black and unreadable. The backlight is not powerful enough even at full brightness to deal with the sunlight.

Is there some kind of anti-glare screen protectors or stuff like that?.
[MTCB Android Head Units Q&A] cub69:
I have this unit as well and it installed easily in my Jeep. I did need to buy an adapter for it, but that would be for any aftermarket unit. I read through this thread and am wondering why people are rooting their devices - is it to get at the underlying configuration for some reason? What are the benefits of doing so. Also has anyone tried to install Waze (GPS nav software)? The play store says it is not compatible with this device. I did get another great app working - SiriusXM Canada works great so I can now use my subscription in my truck too.
[MTCB Android Head Units Q&A] krisboats:
Not had any issues to be honest, mines in a land rover and quite low down in the dash so doesn't really have much sunlight reaching it. I don't even use mine on full brightness either, although once it's summer here that may change. I'm sure any anti glare i pad protector could be cut to size and fitted without issues.

---------- Post added at 01:34 AM ---------- Previous post was at 01:32 AM ----------

Without rooting i was unable to increase the internal app storage section size. Once rooted you get much more room to configure it and use other apps that "aren't compatible". For example you should be able to update the playstore to a newer version and allow unsigned apps to install waze from apk-mirrors. Although installing waze may indeed be possible without a root.
[MTCB Android Head Units Q&A] dtrain123:
I was looking at buying one of these units. But it doesn't say anywhere in the advertising whether it supports AM radio stations.

Can someone who has this unit confirm if it has AM support or if it is FM radio only.

Thanks.
[MTCB Android Head Units Q&A] Gargantua161:
AM

There are three section FM and two AM section
[MTCB Android Head Units Q&A] savagemen:
Hello,

I have this unit: RK-A701 http://www.goodluckbuy.com/images/ebay_rcshop2011_images/sku_122568_3.jpg and i need to know how to connect to the i-bus cable on my bmw e46

I have CAN TXD, CAN RXD, WC+(I think it's Key1) and WC2+(I think it's Key2). How can i connect this?

Thanks in advance
[MTCB Android Head Units Q&A] JS viper:
Hello team.

I own this unit for tree days.... i note this.

1) Cables:

The thick cables black and yellow is the main power cables and must have always power, the ACC cable is working with the key turn and starts the unit.

The Brake cable controls the video player (Dont watch video when driving) connected to the red to stop this message.

The ILL cable connects to the lights, it dims the unit when you turn on the lights (can't dim the unit only on and off)

The GPS antenna is working under the dashboard, is not necessary to take it out.

2) I fix the WiFi signal by soldering a thin cable in antenna, signal is stronger now by 30%.

3) It connects to my WiFi router but i don't have internet, i do have internet by connecting my smartphone with WiFi Hot Spot.

4) iGo is not support it with this unit (i don't know why) but i install other gps maps as Here and Navionics.

Thats for now.... is someone have any idea about iGO plz let me know, it is my prefer GPS software.
[MTCB Android Head Units Q&A] JVASQZ:
reboot without stopping

Hello

I have this unit, after a few minutes on, about one hour, it starts to reboot without stopping (bootlogo and legend "warning don't ......"). When the vehicle is stopped and the ACC Key is removed, waiting a few minutes, turn on the unit starts well, but the same thing happens again, restarting without stop. :(

I hope your help, thank you very much.
[MTCB Android Head Units Q&A] bricomann:
---------- Post added at 07:18 PM ---------- Previous post was at 07:11 PM ----------

Igo works very well, the program is in the unit, all data must be on a microsd in gps slot ..
[MTCB Android Head Units Q&A] bricomann:
You have used screws on the chassis of the unit, pay attention to the length of the screws especially on the lower left and right side, risk of touching components. Try to test the unit out of the car and connect only (acc and b +) on positive and black (12 - 17) to the negative to test if always the same, otherwise it can be a bad solder inside ... ..
[MTCB Android Head Units Q&A] JS viper:
Hello.... can you tell me more details abut it?

I do have iGo already installed perfect in any smartphone that i have the last 10 years, in tablets two, for some reason in this car unit told me "1024x600 resolution is not supported to this unit OR skin files missing"

I have Multi resolution files in this folder an it can work in everything i have use it.

The Nokia Here map that i have install is not working good too.... it is istalled normaly by the Play Store.

I download the Greek map but I can't go to settings to add my Greek language and i can't customize it.

Thanks.
[MTCB Android Head Units Q&A] bricomann:
Check out this link https://www.youtube.com/watch?v=1o_iCZsskzo&feature=youtu.be subscribe to http://www.msieurlolo.fr section igo android for this version . I changed the branding.zip but I can not remember the name of the one used ....
[MTCB Android Head Units Q&A] Ashraf.eldaoushy:
I have the stock firmware for this unit, if that could help you out.
[MTCB Android Head Units Q&A] Chewi3:
Check that your unit is well grounded. This may involve connecting the Ground cable to the car chassis. I experienced a similar problem with poor grounding and the unit kept rebooting.
[MTCB Android Head Units Q&A] Ashraf.eldaoushy:
The same thing happened to me, i found out that the unit is heating up, so i drilled holes in the top and side covers, more of a slots and i removed the bottom cover and cut out a square part underneath the processor, and that helped out and my unit worked fine after that.
[MTCB Android Head Units Q&A] JS viper:
New findings....

The RK-A701 unit have errors with big storage cards and usb flash storage.

I fix the iGo and works fine.... the problem is that can't work good with my 32GB SD card, it needs a smaller one.

I copy all the files to an 2GB old USB Flash and works fine.

I also use my old files with the Multy Resolution that i use 10 years and works fine so far, the only thing is the sys file that i add the 1024x550 (i add 550 because the notification bar at the top of the unit takes exacly 50 pixels so the iGO is outline in bottom).

Thats for now.

Thanks.
[MTCB Android Head Units Q&A] krisboats:
I think it's your card mate, i've been successfully using a 32gb card in mine for weeks and it even works with my 2tb external usb hard drive.

Anybody tried out the app called screen shift before? looks like it'll let us adjust the screen size so the image isn't displayed off screen at the top and bottom of the unit.
[MTCB Android Head Units Q&A] JS viper:
Can you see something? what type of format you apply in your storage cards and usbs? FAT, FAT32, or NTFS?

I add 1024x550 so it works fine... in 1024x600 it go outline in buttom.

In y axis 550 pixel is the iGO and 50 pixels the notification bar ar top.

One more thing..... you can give more RAM memory to the unit by using a sd card or usb flash using the app "Ram Expander".

Thats for now.
[MTCB Android Head Units Q&A] Rick4:
Maybe if you have a vw car (vw, skoda, audi, seat etc), try to change red and yellow wires at iso connector, vw changed this two.

---------- Post added at 10:44 PM ---------- Previous post was at 10:39 PM ----------

mine also overheated, that was an amplifier IC, without cooling made continuously bootloop, ebay seller refund my money, so total cost was FREE. :) I installed a 8cm dia PC cooler, and drill 5 holes at back. Still works perfectly few months ago.
[MTCB Android Head Units Q&A] JVASQZ:
Thanks for your help and comments.

Note that the unit took temperature and solved by installing a fan (4 cm) on the back of the unit, I also made holes in the sides and bottom.

Now the radio works without restarting. :)

please see image:

imageshack.com/a/img923/4509/FudBfo.jpg

imageshack.com/a/img924/2666/rDAFXv.jpg

imageshack.com/a/img922/2427/A9kPzN.jpg
[MTCB Android Head Units Q&A] meezermum:
Pal to NTSC

Hi, does anyone know how to change the video output on the back from PAL to NTSC? and has anyone had any luck getting an external bluetooth dongle to work? (for Torque obd2)

Many thanks Tony
[MTCB Android Head Units Q&A] n0wayman999:
I have this unit. I just put it in my 2006 Cobalt LS yesterday.

The GPS (I use Sygic) is wonderful. Very fast and responsive (put sensor on dash)

The wifi tethering works great from my S4 to this device

The bluetooth music and phone works very well (so does easy connect, but there is really no need for it)

I grounded the brake wire to bypass the "cant watch while car is moving" or whatever the message is (this is obsolete if you use youtube or VLC player anyway)

I had to modify the bezel to get the unit to fit (not to fit in the car but to fit in the new mount) The screen is too wide by 1/2" and too tall by 1/8"

I wired my ILL wire into my B+ wire to keep it hot (works great)

I downloaded ODB Car Doctor and can get all my car stats no problem when I connect it to my scan tool dongle plugged into my car

I ran 2 USB extensions to a flush mount and now have 3 USB hookups from within my car (had zero before)

I ran the 2 Video Out and 1 rear cam video out to the middle console as well for future expansion (2 monitors in the back and a backup camera)

some issues:

1.) The live wallpaper (digital clock) does not come on automatically when you restart the car/unit. You have to open the app first and then close it before the live wallpaper stays

2.) Have no idea what electronic dog means

3.) I have a stick shift, how will my backup camera work when I install it? Will it automatically switch to it when I put the car in reverse or will I have to manually go to the backup cam app?

4.) not sure what the TV app is for? It's searching for a TV tuner hardware device?

5.) Is there a way to get rid of the startup screen "Dont watch video while driving" its so annoying!?
[MTCB Android Head Units Q&A] meezermum:
Hi, can you let me know what scan tool you use? Thanks Tony
[MTCB Android Head Units Q&A] tspoon765:
Hi, I have one of these units. It seems to work, with the occasional freezeup. I need to know how to alter the menu settings so that I can make a third party music player the default, i.e. when you select 'music' on the menu on the main page, it goes to the app I have set, as well as automatically going back to it on startup if it was going when the unit shut down. Could anybody help me please?
[MTCB Android Head Units Q&A] grogan197:
Any wifi ELM327 should work. The bluetooth on the unit doesn't seem fully functioning so I've not managed to get a connection to a bluetooth scanner.

Also if you have a Ford the forscan app gives loads more info than torque etc
[MTCB Android Head Units Q&A] lanman31337:
Has anyone done the mtcsound mod, or has anyone flashed the universal mtcb 5.1.1 rom?
[MTCB Android Head Units Q&A] caralvie:
Hello,

Great post. I'm thinking buy one.

Habieru... The remote is one like this?

imageshack.com/a/img922/2427/A9kPzN.jpg
[MTCB Android Head Units Q&A] sgyr:
Hello ! My device suddenly broke down. Several times I included him on the table to check. No apps were not installed. Last used it to test speakers and store radio stations, as well as in factory settings installed the Toyota logo at startup. It was a week ago. Yesterday I decided to install a few apps enabled device. He joined the white screen, not loading. The "home" button and "back" is not responding, usb, sd, RCA outputs on the back panel do not work. Nothing works except the backlight. Reset button does not help, the device switches off and after switching on again, only white screen.

It turned out that a week of standing on the table, the device turned into a brick.

Removed the top cover, all cables in place, visible damaged elements do not see.

Can anyone advise how to revive the device ?
[MTCB Android Head Units Q&A] Joe9989:
how do you turn off the beep sound ?
[MTCB Android Head Units Q&A] Gargantua161:
beep off ---setting-system setting -function setting -keypad tone -uncheck﻿
[MTCB Android Head Units Q&A] dtrain123:
I just finished installing a reversing camera yesterday.

You will need to run a wire from your reverse light wiring into the 18. R-CAM wire on the unit. (I think it's a pink wire). Whenever the unit gets +12V on that wire it will switch from Android to the reverse camera display. It takes a couple of seconds to switch on and can display the reverse camera even if Android is still booting.

I hooked it into the reverse wire that goes to the trailer plug at the back of my car. Depending on your car, it's probably easier to look for the reverse light wire near the back of the car where it goes into one of your tail lights. There would also be a wire under the dash somewhere, but it would be much harder to figure out where it is. It shouldn't make any difference if you have an auto or a stick shift.

The RCA video cable that came with my camera had an extra wire sticking out at either end of the cable which I used to run the reverse signal from the rear of the car to the front. If you don't have that, then you'll have to run your own wire.

The actual camera itself should also be powered from the reverse light circuit so it only turns on when your reversing. My one had LED lights on it, so if you leave it on all the time it will drain the car battery.

The camera I bought was called "170° 4 LED Night Vision Car Rear view Backup Reverse Parking Camera Waterproof" on eBay. I can't post the link because I'm still a new user. It seems to work OK. The picture quality isn't the greatest, but I was testing it last night and it still gave a pretty good view at night.
[MTCB Android Head Units Q&A] Joe9989:
Hello

I too have wifi issue, connects to my home router but very slow connection. can you post a picture or tell me where you connected the wire for wifi antenna ? Thank you