yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] tarzansg:
3 USB ports

Some members was asking about the how many USB ports i had in my unit. My unit came with total 3 USB ports natively, so far i have not plug in any USB hubs to any of them, as of now 3 are sufficient enough for me.

2 normal USB female at the rear.

1 mini USB female at the front bottom left.

I have tested all 3, all functional, so far i tried SD cards, and WIFI dongle on all of them, all works. I am still waiting for my 3G dongle that i have just ordered, as my current one is not working. I noticed the compatible models posted in the front page of KID52, i believe those non-compatible ones are those build with CD-ROM auto-run and windows compatible drivers. Though i attempted to use the Huawei AT command on my 3G dongle to switch it to modem-only but still the unit does not recognized, fyi i am using a old model Huawei E220 dongle.

I always like to attach pictures..
[Android Head-Units] sciallo:
Thanks, I was just curious... If you or anyone with a 3 usb ports unit ever feels like cracking it open, I'd like to know where those ports connect internally, On mine it looks like the front connects to the same header as the back, so I was considering wiring that to the back as well, I non't think I would use the front one much anyway...

---------- Post added at 12:33 AM ---------- Previous post was at 12:15 AM ----------

[MENTION=5389783]donaldta[/MENTION] you are the man, thanks again for this research, it seens to be right on point....

I've been looking through the spec sheets and manuals for programmer and software, I spent the better part of the day reading up on it and installing virtualbox and winblows on my computer (it was overdue anyway) so I could see if the software for the ST-LINK/V2 programmer could read the MCU files... IT DOES! That's gotta be a good sign...

I had to rename the file *.bin for it to read it properly. Also there is a compare files feature, so I tried comparing a few of the MCU files. It looks like the entire contents of the file differ, whatever that means... I don't really do well reading HEX by memory bite allocation :)

Still hoping the manufacturer can give me a better solution, but if not I think there is a way, the programmer is only about $20 last piece of the puzzle will be finding/making a jtag connection on the board... I might crack it open tomorrow and start following traces with a magnifying lens :)
[Android Head-Units] avgaz:
tell me whether there are commands to disable the device and send it to sleep. Team "reboot -p" resets the device but does not disable it
[Android Head-Units] sciallo:
I was playing with that thought too... It's not going to be a "normal" command. Being that the mcu is obviously handling that, if we're lucky it's a echo "something" > {some/I-o/file}

I remember in my attempts to restore sound on the OUKU I fried I managed to change things that way, like screen brightness etc. I'll have to dig that up and see if how it applies to this one. Though I don't have a working one to experiment with ATM

Worse case scenario, my plan was to use one pin of the IOIO to simulate a "power" press on the SWC with a resistor. (would be cool to know if a SWC mapped to "power" does put it to sleep)
[Android Head-Units] avgaz:
I wanted to implement using the "tasker" could send device to sleep, but I did not get to do it ((
[Android Head-Units] sciallo:
Right on the sidebar today:

http://www.xda-developers.com/andro...rs-in-2014-with-the-open-automotive-alliance/

Maybe soon enough we can get a forum section... :)
[Android Head-Units] airyras:
So im looking to get this for my 1st gen is300. Is there any links? I see many on ebay now that are 4.1 how do I know which on is this model. Any help would be highly appreciated. P.s any one have this in their is300 does it stick out etc. Thnks
[Android Head-Units] sciallo:
This was for the OUKU, so the filepaths might be different. My MCU being gone, I can't really try and see, but this would be a start. If it's possible to do from command line, it will be similar to what's described here:

http://www.ft86club.com/forums/showthread.php?p=1328018#post1328018
[Android Head-Units] shollz:
I'm getting ready to order one of these. Is their any difference between this one for $289 ebay item #271345201127 or this one for $422 ebay item #261364167039 (sorry, I don't have enough posts on xda to include links)

Also, I see that these have a backup camera composite in and another composite video in. I want to run two backup cameras. One that will auto switch and one that will manually switch. Is it easy to switch to the second input?

Thanks
[Android Head-Units] sciallo:
Not that I can tell... the first one is really about 320 shipped, from the specs seems like the same...
[Android Head-Units] fcortes626:
the only difference i see is that the one that costs more has a tv tuner. but its analog so if you live in the U.S. its worthless unless you get a converter.
[Android Head-Units] shollz:
Thanks for the info. Has anyone used backup cameras with these? Any video or pics available with backup camera being used? and can you switch to the aux video input quickly?
[Android Head-Units] fcortes626:
well i just got mine right now and also got my camera just need to go get the kit. Camera got here first lol and i ordered it on saturday and the unit on the 1st:laugh:
[Android Head-Units] pgarrity18:
I purchased the ouku unit and a Scosche Ford F-150 double din kit. The ouku was too big. It is the faceplate measurement that is too large, not the rear "box".

I had to go to my buddies machine shop and remove some material to make it fit. To make it look perfect, a slight tilt is needed, but not very noticeable without it. However that would require new holes to be drilled in the mounting brackets, for the case of an F-150.
[Android Head-Units] sciallo:
On second though....

I just tried renaming a small .png file to .bin and as I expected it opened in that software, so it means nothing... The fact that two different MCU files compared in the software show not one bit similar is kind of suspicious too...

No word from the manufacturer... I guess I'll be trying to call. No views on the video came from China either...
[Android Head-Units] donaldta:
Do you know if sysrq is compiled into the kernel? Check if the /proc/sys/kernel/sysrq file exist and if it does check, "cat /proc/sys/kernel/sysrq" and if the output is "1" then it is enabled or "0" means is disabled. If it is not there then it wasn't compiled. This is part of the "Magic SysRq Keys" that provides a low level control of Linux.

Anyways, if it is already enabled you can try, "echo o > /proc/sysrq-trigger" to attempt a clean shutdown or "echo b > /proc/sysrq-trigger" to force the Linux power off. If it compiled into the kernel but not enabled then enable it first using "echo 1 > /proc/sys/kernel/sysrq". Although, as [MENTION=3081576]sciallo[/MENTION] the MPU might actually be responsible for the system's power so it may not work or act as expected.
[Android Head-Units] Black6spdZ:
I also just ordered one of these.. decided that both the analog and dvb-t TV options would be useless here in the US, so I just got the capacitive touch model and seperate reverse camera. I was about to pull the trigger on one of the earlier models a year or so ago but decided against it because there wasn't much development going on then, but after I saw this thread and root available that was enough for me.. besides, I've been rocking an old galaxy Tab7 in my vehicle for quite some time and now I can roll it all into one clean integrated device. Looking forward to hopefully a long development life for this unit and future custom ROMs.. keep up the good work guys!
[Android Head-Units] typos1:
Wasnt there an ATSC option as well ?

Mind you, think you d be better off buying an Android ATSC dongle to get tv (see earlier posts) as I think TV is controlled by one of the native apps as opposed to Android itself.
[Android Head-Units] KID52:
The unit has two inputs, one that is only for reversing camera, and the other you can use for whatever which can be viewed any time using the "AUX" app.
[Android Head-Units] Black6spdZ:
I picked this ATSC tuner up for $25.. going to give it a try

http://www.newegg.com/Product/Produ...yMark=False&IsFeedbackTab=true#scrollFullInfo
[Android Head-Units] Defender666:
Is there a changelog for System Version 2.6.68 ??

Is root still possible on this version?
[Android Head-Units] raid2435:
Occasional Gray Screen Fading to Black on Boot

Hi all,

I have just bought one of these and I plugged it into my Car to try it before installing it to test before I got too far down the line. Everything worked excellently. The connections I have are the ISO connector that it came with, which is connected to my Car ISO wiring harness, also with correct wiring.

I now have it all fully wired up and in place, and most of the time it works correctly and very well.

However, on occasions, I turn the ignition on and expect the unit to start up. The radio comes on, the screen comes on, but instead of booting up and getting the Android logo and booting, i get a light gray screen, which then fades to black, the radio remains on. After several ignition offs and ons again, it does eventually boot up.

It seems almost as though the unit switches on correctly when it receives power from the Ignition and I'm assuming the Radio Unit is actually a separate board inside, but controlled by Android. This would explain why the radio continues to work, but I'm assuming for some reason the Android Computer PSU isn't booting on Ignition.

I am a bit concerned about having to send this back to the seller and awaiting a new unit. I have messaged the seller on ebay and so far they have only asked me in bad english if I have wired it up correctly, which I have made sure, as i say it is connected using ISO wiring harnesses and I have checked the pinouts are the same.

1. Could this be a firmware issue perhaps?

2. Although not ideal, is there a way to manually power the device on instead of having to switch ignition off and on again several times?

3. Could it be possible that the Android Computer PSU is detecting my Car Battery level being too low perhaps that it won't power up? (If this is the case then obviously it is something I can fix with a new car battery and means it isn't a problem with the unit which would be great news)

4. Anyone else had similar issues?

Thanks in advance
[Android Head-Units] typos1:
Dont be too concerned if you need to send it back - ebay's buyer protection is excellent and they should also pay the return postage if the item is faulty and has to be replaced (you may have to phone or email them and ask for that though)
[Android Head-Units] PsychoMcSatan:
One possibility is the voltage drop the unit will see when the motor is cranking. With most ignitions, you turn the key forward a bit and the accessory voltage sees the full 12V or so of the battery. The unit will see that 12V and start booting. However when you turn the key further to start the engine turning over, the voltage likely drops. The older the battery, the bigger the drop. Depending on how low and how long the voltage drops, you might get undesirable effects. Possibly some of the unit powers up but another part hangs.

If you have one available, I'd suggest rigging your unit up to a power supply how a few others here have done. You can also experiment with turning the key quicker (this might prevent the unit from starting the boot process until after the engine is revving) and not over-cranking the engine. If you suspect that your battery is weak, I'm guessing it's fairly old so it wouldn't hurt to get a new one. Or have a friend give you a boost with jumper cables. That should maintain a strong enough voltage so you can at least rule out battery issues.

I also just remembered that I posted in this thread earlier about a circuit with a rechargeable battery that can overcome this problem. Though it's a bit ambitious until you've confirmed that voltage drop is the cause of the behaviour you are seeing.

And regarding question 2: To power the unit off and then on again (as if you turned the car off and back on again), I believe you'd just need to temporarily disconnect the accessory voltage wire. Put a toggle switch on that connection.
[Android Head-Units] shollz:
fcortes626 what seller did you order it from and how long did it take to get in? would like to get one in early next week
[Android Head-Units] scubee:
bootloop

got myself into a boot loop with a corrupted boot animation...

any suggestions how to get myself out of this fix? all i get is the radio coming on.. but its a black screen

solved. reverted back to 2.6.60 full and alls fine
[Android Head-Units] djblaze852002:
Too cold?

Whenever the screen has done that in mine is when something crashes...I would try resetting to factory.
[Android Head-Units] fcortes626:
sweet let us know if that works. would like to get one if it does. newegg isnt far from me anyways so i can order online and pick up at the warehouse.

i got it here: http://www.ebay.com/itm/CAPACITIVE-Android-4-1-Double-Din-Car-DVD-PC-Head-Unit-Stereo-Radio-GPS-WiFi-3G-/271345202527?pt=US_Video_In_Dash_Units_w_GPS&hash=item3f2d6f355f

the camera i got from a seller i have purchased from before and got it in 2 days: http://www.ebay.com/itm/221340542464?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

i ordered it on the 1st and i got it today the 6th. proably would of got it one day sooner if it wasnt for sunday. pretty quick for it being shipped from china.

after some filing/sanding/shavind the trim from the double din kit i got it to fit perfectly. wired everything and its now working. havent had time to play with it so tomorrow i will check to see if its updated and i will root it:P

So to play music from my phone while connected to usb does the unit have to be off before i plug it in? because i plugged it in after and the music app didnt show anything under usb.
[Android Head-Units] Naw T:
I had this same problem when I was messing around with boot animations. I ended up just loading an older version of firmware than what I had. I believe I went from 2.6.60 to 2.6.40 and then back to 2.6.60. Also, you could probably just upgrade your firmware to the latest version if you don't already have it loaded on your stereo. Hope this works for you....
[Android Head-Units] raid2435:
Thanks very much for the detailed response.

I am a little concerned about the battery as I've had car computers installed in my car for about 4 years now and several flats with this battery during the time although this battery is only about 3 years old. I don't use the car very often these days either (maybe once a week to drive a mile for a food shop and maybe a medium length journey once a month) and so regularly have to jump my battery once a month. This is why I was wondering about battery levels and could explain why it only happens occasionally although I haven't yet had to jump it with this head unit.

Just to say I get the same issue from switching on the electrics only without starting the motor (voltage drop during start). It also doesn't matter how quick I switch the ignition.

I may well try a new battery anyway as it can't hurt I guess especially as I'm pretty sure my previous car computers have completely drained this battery and it doesn't hold its charge very well these days.

Also read the guy posting just after your reply saying he's sick in a boot loop where just the radio comes on but the screen is black. Sounds very similar except I haven't done anything to mine as it is still factory set. Someone suggested reflashing the firmware. Might that also be the issue? I don't want to do too much to the unit incase . Do have to send it back really.

Sending it back is more about the hassle really of unwiring all the cables like gps etc getting it to a courier and the fact I paid import tax on this and so receiving another I'll have to pay again. :(

Thanks guys
[Android Head-Units] cednut:
I can't get super user to push to double din

hello can anyone help me with the pushing super user do my double din? I put in the ip address and it connected, but after I put in

adb push su /data/local/tmp/su it returns with the error cannot stat 'su': No such file or directory.

I'm not sure what I'm doing wrong? any help would be appreciated.

---------- Post added at 04:28 AM ---------- Previous post was at 03:50 AM ----------

I having trouble rooting the android double din. Can I use termial emulator or remote abd shell to root it? If so, what are the commands or how do

I go about rooting it. I connected to the IP address with my laptop. I used android adk bundle. But I'm not having any success with it for some reason. Any pointers appreciated.

Ced
[Android Head-Units] Naw T:
Look at the very first page of this thread, there is a section that is called Root and it has a very detailed explaination of how to root with terminal.
[Android Head-Units] avgaz:
This file is missing /proc/sys/kernel/sysrq

There are some ways to what?
[Android Head-Units] sciallo:
At a loss

I really need a better contact for the manufacturer if anyone has it...

I've been emailing, I tried calling all numbers posted on their website, at different times day and night, and tried to fax (no fax machine answers, same recording as the main number).

I started inspecting the board, I might start a separate thread for hardware findings as I don't want to hijack an already long enough thread and not everyone cares for hardware stuff, but it's looking like it might be a bit over my head... It doesn't look like there is a place for a programmer connection per se on the board, in fact the SWIM pin of the STM8 has no trace to anywhere... I can solder, but that's beyhond tiny!! ...and I'm not sure that's the way to do it anyway... I could use the manufacturer's help (or a new board alltogether.
[Android Head-Units] tarzansg:
Have you tried QQ chat? I look at the Chinese section of the website and they have QQ contact over there.

Try registering and installing this program and try to QQ chat with them, QQ chat is a common chat platform for Mainland Chinese people.

http://www.imqq.com/

国内业务QQ：Ben 1529401603

国外业务QQ：Allison 892807589

Ellen 2390571154
[Android Head-Units] donaldta:
Huh?
[Android Head-Units] avgaz:
I mean is there any other ways to programmatically turn off the radio or get her to sleep
[Android Head-Units] dykast:
I got this one http://www.ebay.com/itm/111233072287?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

It looks like it is part of the same series of units that are part of this thread. Just wanted some feedback on if I got the right one.

Thanks
[Android Head-Units] sciallo:
The short answer is "no" ...at least not that anyone here has ever reported... I like to think there is a way, but we'll have to figure out how. I'm out of the game until I can fix mine :(
[Android Head-Units] donaldta:
Technically "sleep" and "shutdown" are two different things. Hmm... maybe try "input keyevent 26" as root.
[Android Head-Units] fcortes626:
ok so i updated and rooted my unit and my obd2 usb adapter works flawlessly. i dont like the new launcher though. anyone has the old one? i installed nova launcher for now.
[Android Head-Units] sciallo:
That's interesting, what hinted that?

I am absolutely convinced the sleep is handled at MCU level, though things do happen in android... anything playing (including angry birds) pauses... It is probably a combination of an android command and a i2c (or a few) like "echo '1' > /sys/{some/IOfile} to turn off amp, backlight amps etc) I remember being able to change backlight brightness (not in android) that way on the OUKU also some sound settings could be controlled that way...

I guarantee a diff between /system/ and maybe /sys/ and /dev/ with a 4.0.6-1-10-0101 MCU and a 4.0.6-1-10-0301 (loaded with the "model change" in 2.6.60-2 rom) Would give us some really good hints....
[Android Head-Units] sciallo:
....And I'm not questioning it, just a little curious and a ignorant :)

I guess the question is wether android initiates the process then "tells" the mcu to continue or the other way around...
[Android Head-Units] PsychoMcSatan:
If you're having issues like that with your battery, I'd definitely suggest you get your electrical system checked out. Could be a bad alternator or even something else.
[Android Head-Units] gpmg762:
That's is the correct one, I bought it from same seller. I got it in 3 days.:good:
[Android Head-Units] latino-7:
HELP! Problems with GPS antenna

I updated my unit with the last system version, now the GPS do not has a signal. I cheched with GPS test and in View it said 18 satellites, But 0 in use. If i turn off the radio and then turn it on back again 50% of the times works. I restored the original system files and the problem still the same. Before that the GPS was working fine. I need help or input please!

Thank you!!!
[Android Head-Units] djblaze852002:
Which unit do you have? The one with one volume dial on the left or one with two dials? I assume the OS you installed was 2.6.68.? Which OS version did you update from? Other than GPS functionality do you notice any other differences?
[Android Head-Units] latino-7:
My unit is the one with one volume dial on the left. And yes the os I installed was 2.6.68

I use the one posted here on this page, on the first post.... Everything else looks fine, the only problem is the GPS

after all the issues, I went back to my old version 2.6.62 and I still having the same problems.
[Android Head-Units] fcortes626:
did you try both versions? there is a complete version and a minimal version
[Android Head-Units] latino-7:
Yes Not fix my problem
[Android Head-Units] avgaz:
This command emulates pressing the "Power" on and off screen, but the music continues to play. Tell me how long to emulate pressing "Power"
[Android Head-Units] :
Does anybody know right now what the purpose of the CAN-Bus input is?

Can we Decode the can-Bus in the Unit?