yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] Nereth1:
I just recieved mine, and my installation just became far more complex due to 2 core issues:

1) It didn't come with an ISO radio connector, but rather some other connector, thus meaning I don't get to use the ISO harness I purchased for my car, except as an in-between so I don't need to modify my cars harness

2) I'm a bit confused - on the back of the unit, there is 1 harness that has RCA plugs on it, carrying AV signals obviously, and the other, I assumed, was going to be carrying audio, but the labels on the other one are also things like "FR-" "FR+" etc, why have they doubled up on what seems to be AV connectors? Is it my choice of which connector I use, or are these other connectors for something different? Which should I be using when they are redundant?

Is there any kind of wiring diagram available? Because I'm a bit lost. Here is my best guess:

Head unit connector - Car connector

Back - ???

Brake - ???

Acc - Ignition voltage

KEY1 - *

KEY2 - ???

ILL - Dash light illumination

AMP-CON ???

FL+ - FL+

FL- - FL-

FR+ - FR +

FR- - FR-

RL+ - RL+

RL- - RL-

RR- - RR-

RR+ - RR+

AUTO-ANT - Power antenna

B+12V - Battery V

GND- -Car chassis

*According to this thread: http://www.aussiemagna.com/forums/showthread.php?t=100624 I only need ground, and one of the two steering wheel control cables connected to get the functionality. Does that sound reasonable to you guys?

Which leaves all the car stuff handled, and thus the following questions:

1) What the hell is the "Back" Input to the HU

2) What the hell is the "Brake" Input to the HU

3) What the hell is "AMP-CON" input to the HU

4) Should I be connecting the "Auto Ant" or not? My car has an antenna built into the rear windshield. Yet it does have on its harness a "Power antenna" wire. Could the antenna require a voltage to function? Or is something weird happening here?

5) Can I use the audio connectors on that connector like this, or should I be using the RCA connectors?

Thanks everyone!
[Android Head-Units] lukesan:
Has actually any one asked a seller if there was maybe like a group buy we could do? Not only for the price but also the consistency in hardware we would get would be major a bonus.

I've been emailing a couple and most of them have no clue on what they are actually selling. Some say 1GB memory and a couple of lines further it states 512MB.

Now I am up for a Android radio in my VW but I am not willing to gamble on what I get and lose time and money.
[Android Head-Units] ryrager:
Back is when the car is in Reverse (backing camera)

AMP-Control - used to turn remote amp off/on

FR+ RR+ (Front Right, Rear right, etc)

Key1, Key2 (Can-bus or alike steering wheel controls)

Brake - not sure
[Android Head-Units] Nereth1:
Is the back one critical to anything other than reverse camera? And what voltage does it expect when in reverse? Just battery voltage?

Is the FR/RR etc from the main harness useable in lieu of the RCA connectors on the other harness?
[Android Head-Units] cat2115:
Break is for bypassing dvd to continue to play when you are driving. In my case I don't need it the radio already bypass itself.

Those RCA FR,FL etc, use only if u have an Amp and subwoofer or else no need.

I thought the Reverse wire is use for backup camera??
[Android Head-Units] Nereth1:
Ok in that case things are the opposite to what I thought.

RCA connectors to go to an external amp

Normal connectors on the normal harness to go straight to speakers.

Please confirm?

As for reverse, there is a "CAMERA R" RCA plug on the RCA harness, I assumed that was it. I wander if the reverse wire is used to give it a signal to switch over to its image.
[Android Head-Units] cat2115:
OP and other, maybe you can help me why 2.7.4 give me "UI Unauthorized, please contact supplier."

Below is System folder from 2.7.4. Maybe you can see which apk cause this red text warning.

https://mega.co.nz/#!F5MCWLDQ!sj0Nbt7ore9x6ihj5UvRqqD3eE0V24MsNP6en1OzsNI

Thanks
[Android Head-Units] KID52:
http://xdaforums.com/showpost.php?p=48432843&postcount=353
[Android Head-Units] Nereth1:
I assume I am correct in saying an audio 'signal' output is one that needs to be amped? And therefore yes, I use the hard wired connections.

Edit: And by hard wired connections I mean not RCA ones.
[Android Head-Units] KID52:
The RCA connectors are pre-outs so yes, need to be amped. The bare wires go through the internal amplifier circuit so can be connected directly to speakers.
[Android Head-Units] Nereth1:
Cool sounds good! Only thing left for me to confirm then is why there is a antenna motor cable on this harness I purchased - maybe it doubles up and works for another vehicle that actually has one.
[Android Head-Units] shadowmike:
Incase of a motorized antenna..

AN-21 DEV www.dropbox.com/sh/j6lx4vkoqcm6kow/MDs6vhsuHG
[Android Head-Units] j2gifted:
I ordered my radio on April 8th, it came April 24th, I installed it April 26th. All went well accept the CD/DVD drive didnt work. I checked all the work and everything was connected fine.

I contacted the sell Beststylegifts on ebay about an exchange but the told me to check and make aure it wasnt other things (which i had already done). Now I got a message saying that they would be glad to exchange but it could take a long time and be expensive. I assume theyre talking about shipping, but shouldnt that be on them since i didnt damage the unit? I only paid $30 for shipping. She also said that i should find someone locally to repair it and they will cover the cost and that in their experience it is probably the CD head that needs replacing.

Idk anyone locally in Los Angeles to fix this, nor am i comfortable trying to fix it myself. She didnt even give me complete return instructions, just a name, address, and phone number.

Should i just file a dispute with ebay, paypal, or my credit card company? The ebay contact name is Brenda... Seller Beststylegifts
[Android Head-Units] cat2115:
Maybe you have but did you remove the two screw on top of the unit?
[Android Head-Units] Zittermann:
I have similar problems. TA is working, but AF is not working as expected. And I have also very bad signal.
[Android Head-Units] j2gifted:
Yes, it was the last thing I did before I mouted the radio in the dash.
[Android Head-Units] cat2115:
That's sux.. I also bought mine from the same seller as you and the screen is defective. It's giving me green color screen. The seller is sending me a new screen.
[Android Head-Units] j2gifted:
Are you going to install it yourself?

How difficult do you think it would be to replace a CD head (not even completely sure what that is)... I really would rather not open up the radio myself
[Android Head-Units] tdt038:
Replace the system launcher (system/app) with one of this launchers from the previous firmware. Unit must be rooted.

BTW, red icons of the second version launcher can be changed to other colors with long pressing the first icon on the right side.
[Android Head-Units] Cebulon48:
Bump

Hi, I still need help with this.

I can't get my T7019a rooted. I am getting a "parsing error" when launching RootmyAn20_14

Latest Firmware/System from Page 1 of this thread installed.

Oliver

Gesendet von meinem GT-I9100 mit Tapatalk
[Android Head-Units] nhdn:
Help with Steering Wheel Controls

Hi, Can somebody help me to identify which wires are used to hook up to the steering wheel controls on a 2006 Toyota Highlander. The factory headunit was a JBL system. I have installed the Android 4.1 pure android head unit and I have everything working beautifully with the help of after market cables etc, but I just don't know which wires I need to connect the wheel controls. I'm told it's plug and play... Two wires I'm unsure of.. CAN TX and CAN RX?

Thanks!
[Android Head-Units] cat2115:
Thanks tdt038. I will try this. Red looking good. What launcher are you using on your screenshot. Currently, I use Solo Launcher @ https://play.google.com/store/apps/details?id=home.solo.launcher.free

May I ask why the system launcher got red text on 2.7.4? One more question and maybe u knew. After updating from .70 to latest firrmware and updating MCU, time always incorrect after i start my car. Only stock, MCU 4.2.6.1-7-10-6501, give me correct time.
[Android Head-Units] tdt038:
I think, you didn't understand me right. Screenshots taken from the stock launchers, from the previous different firmware for the AN-21U. You must replace the stock launcher on 2.7.4 with one of this stock launchers. It should solve your problem with "red text" on 2.7.4. After that you can use any other favorite sideloaded launcher.
[Android Head-Units] cat2115:
sorry. My question was what cause the 2.7.4 firmware launcher to get red text? 2.7.4 launcher incompatible with my unit that is why i need to replace with your attachment?

2. Could you please help (if possible) with incorrect Time every time car start. With stock MCU 4.2.6.1-7-10-6501, Time is always correct when car start. All latest MCU version (after mcu 4.2.6.1-7-10-6501) will cause time to be incorrect. Without the latest mcu, some feature might not work, like knob switch or maybe more that i didn't know of.

Thank you
[Android Head-Units] tdt038:
Maybe because your device from another manufacturer with his own type of firmware than the AN-21.

Try install firmware 2.6.60 from the first page. It will clear all data on the unit, then update to 2.7.4, and update MCU from settings "Choose models". I belive it will solve your problem with red text and MCU.
[Android Head-Units] ShaolinSolidus:
SWC

Sorry if you already have an answer to this one, But i am still pretty new to XDA forums and i couldn't find it in your posts. From my personal experience i found i needed to ground my SWC common on the car harness side. I have a Subaru forester 2010, and the way they did their controls is straight resistive buttons with no power injection aside from the headunit, and the stock headunit did it's own referenced "closed loop" sensing (sorry if my explanation is lacking or confusing) the AN-21 U needs something to reference off of, so if the other side of the SWC controls are not grounded, or even connected for that matter, then there can be no reference point.

SWC+------ Buttons --------- SWC- (common, needs to be grounded) and in my case it was an open line, the SWC common was not connected to anything.

Sorry for the long drawn out explanation. Hope it helps you, if not someone else.
[Android Head-Units] cat2115:
Thanks but still have red warning text. Aldo doing model update still cause time to be incorrect.
[Android Head-Units] tdt038:
Check

this

post
[Android Head-Units] cat2115:
This is what I did. I flash 2.6.60 then flash 2.7.4. Still have red text warning. Then update mcu from "choose model". There are 3 model in (civic, Toyota, and VW). I tried all and still no good.

I even replace your download, still no good
[Android Head-Units] KID52:
For those in the UK that are interested, I have my own unit up for sale on eBay.

Pure Android 4.1 Capacitive Touchscreen 2DIN GPS Navigation Car Stereo WiFi FM

Reason for selling is that I want to buy one without a DVD player so the screen is slightly larger :)
[Android Head-Units] cmtas:
On my 2011 Camry I used a Metra 70-8114 Factory Integration Adapter (should be same on your Highlander). I cut off the wires going to the connector that would have gone to the ASWC unit (not needed) green, green/black and black connected the wires to the head units wires KEY1, KEY2 and ground. Also if your car has a audio AUX in jack, you can use the RCA plugs on the adapter cable to plug in to the head units audio AUX IN (L&R). This will maintain all car functions without cutting your cars wire harness.

Factory Integration Adapter pdf

h t t p ://a248.e.akamai.net/pix.crutchfield.com/Manuals/120/120708114.PDF
[Android Head-Units] kopakuxi:
I have unfortunately not been keeping track of my email, since it didn't seem like the app was very well received, so sorry for this getting to you late. The program doesn't remount the SD as such (despite it's name), but it does put a link of the mount point from the external SD to the internal SD. This solved the issue nicely for me. Since the apps are set up to search the internal SD, this will also redirect the search to the "other" mount point as well (external). I didn't have any problems in my less than extensive tests, so it should work with the external SD. This of course doesn't solve your problem, since the flash drives would have their own mount point. It would be very easy to find the mount point though and have a startup script make another link to the internal SD so your new files would be found. There may be more elegant solutions to your problem, but this should work quickly without too much headache. Hope this helps.
[Android Head-Units] jpapadami:
Which stereo do you plan on getting? If you're thinking about getting this no disc stereo I bought this one from this seller and can only say you won't regret it. It's an awesome stereo. I was able to get mine customly made with external mic, DVB-T, red LEDs, and a second USB port in the rear.

The other one that I can also recommend is this one. You can't get it with external mic or DVB-T (as I already asked), but it comes with changing LEDs and OBDII bluetooth support ( I would ask just in case if it doesn't have the hardware bluetooth restriction). When comparing both, I personally would go for the first one for numerous reasons, starting off because of the better faceplate, IMO. Good luck in choosing the right one for you.
[Android Head-Units] Zaphod-Beeblebrox:
I'm searching for something very similar, but also trying to find something with 1024x600 (or higher) resolution.

I really like the faceplate of the infinidi one (volume knobs are SOOOO much better than buttons), but it's not available in the higher res.

I'm kind of leaning forwards a CA-FI Dashlinq4 at the moment. But I'd love to hear about any alternatives you are considering.
[Android Head-Units] Zittermann:
Can someone tell me if the AF (alternative frequency) bug is fixed with 2.7.4?

Is there a trick to boost the poor radio signal? (I already have an active antenna)
[Android Head-Units] jpapadami:
not sure how much of a difference you'll notice on a 1024x600. Both 800x480 and 1024x600 have 160dpi. The Dashlinq is also a nice stereo, but has 1/2 less iNAND memory.

Somewhere down the line I was thinking about replacing this screen with a higher resolution to see if there is a noticeable differnce, but not sure what exact screen these units use.
[Android Head-Units] anpo:
No sound using Spotify?

Hi

I use my device with Spotify, of course there are som limitation as Spotify only resides inside Android and can't be controlled by the MCU, like I have to wait for boot etc. But my only big issue is that I can't get any sound unless there first is another MCU-controlled app playing (like radio). If I have no active apps (radio, music, whatever) and start Spotify playback it will start correctly but all is quiet. I always have to first start radio app, then load Spotify and start playback. Anyone have any suggestion on a workaround letting Spotify controll MCU sound devices (I guess thats the problem but I may be far off).

I'm on .96 and got root. Haven't tried install Spotify as a system app. My hunch is that only give me better priviliges inside Android?

Edit: Nevermind, found that the same issue may occur with Poweramp..

br

Anders
[Android Head-Units] digitaldr:
This is my first post and I'm sorry if my questions have already been answered. I'm almost ready to order my headunit tinyurl.com/nf34lxw I've only got as far as page 85 and search hasn't thrown up the info I need. Anyway here goes!

1. Is this headunit wife friendly? By that I mean are it's quirks likely to p*as my wife off. For instance has any one figured out how to get audio to work on an android music app without running one of the mcu ones first?

2. Can you give the radio presets names - the RDS ones would be fine.

3. I have a right hand drive car - will the built-in microphone work OK? If not how easy would it be to fit an external one? I have reasonable soldering skills.

4. Anyone got any experience installing one in a 2005 (mark 2) european Honda CRV exec (has factory fitted double din Alpine sat nav). In particular to the steering wheel controls work out of the box or is some kind of adapter needed.

5. What's longterm reliability like?

6. Have seen a few units going very cheap on aliexpress but sellers have no feedback. Should I steer clear or order and rely on Aliexpress/PayPal to sort things out in the event of any problems.

Thanks
[Android Head-Units] cat2115:
Could this be SystemUI.apk?

Under Google Play it shows my device as Mstar Semiconductor, Inc --- Full AOSP on MStar Cedric3
[Android Head-Units] Zittermann:
I decompiled the 2.7.4 system apps. The message does come from: com.tw.service_a5a4.apk
[Android Head-Units] djblaze852002:
When the unit boots up, it automatically opens the last "MCU-controlled app" in the last state it was in before the unit shut down. It is good practice to open the radio app, then hold the "back arrow button" on the bottom left of the screen to exit it. Now when you reboot your unit, it will open the radio app in the background and not make any noise. You should be able to then just open spotify or any other audio app and play music.
[Android Head-Units] booba5185:
1. You only have to open the MCU app and back out of it once, not every boot. Once you do it, that's the only time you'll have to do it. Basically whenever you use another "input" on the MCU (DVD player, Radio, Aux in, etc.) then hit back, Android is given sound privileges again.

2. Yes

3. I don't have any personal experience, but I would assume the built in mic would work fine. If not, people have added an external: http://xdaforums.com/showthread.php?p=49686864

4. No clue, sorry

5. So far, so good, but it's only been 2.5 months, lol.

6. Better safe than sorry, IMO, I went through Paypal. Maybe someone else on here went through those guys and can chime in.
[Android Head-Units] cat2115:
Thank you for taking your valuable time in sorting this red text warning for me. Could I ,maybe, replace with firmware 2.6.96 com.tw.service_a5a4.apk? I will try it tonight.

Can you or anyone help me at your availability sort out why Time is always wrong after car start. I think it has to do with MCU. Any MCU later than 4.2.6.1-7-10-6501 will cause Time wrong. I notice that this MCU 4.2.6.1-7-10-6501 is VW when doing a "Choose Model". There are Civic and RAV4, I tried all but Time is still wrong.

Or Maybe one of the apk in system/app is causing Time wrong. If so, which? I do not know how to decomplied.
[Android Head-Units] Zittermann:
Yes, try to replace the apk with the version from 2.6.96.

Today I have updated my mcu from 4.2.6.1-7-10-6501 to 4.2.13-7-10-6501 but I did not check the time. Will do that tomorrow.
[Android Head-Units] j2gifted:
I bought a 16gb SD card for use in the fronylt slot but I cant seem to get app data to save to it. For example, when using Spotify and trying to download playlists for offline use, or storing offline maps it uses the internal memory which is limited... and runs out of space.

How can I use my card in the SD Slot for this?

In the menu it shows an Sdcard, sdcard01, and the when I put a card on the outter slot it shows as MMC (something). I can copy files to and from it but I cant get programs to use it.
[Android Head-Units] Nereth1:
Hi everyone,

So my unit (Identical to this one: http://www.aliexpress.com/item/7-IN...-GPS-Wifi-Bluetooth-Dual-core/1712895257.html ) has arrived and I've installed it, and there are a few issues. Key amongst them:

1) When I turn the volume knob left, volume goes down, when I turn it right... volume goes down. Can't turn it back up without the android software controls!

2) The home, menu, back hardware buttons all do nothing.

3) I can't see anywhere to turn bluetooth on and connect to my phone in the menu.

Does this sound like a potential hardware issue or software? Something I should go back and get at least a partial refund from seller for?
[Android Head-Units] juliomc02:
Thanks for the help, I did factory reset once again and was able to erase the files(after 3 or 4 factory resest lol) I'll might update anyway to avoid this again
[Android Head-Units] MFKinSINY:
SWC Stopped working

I finally figured out how to hook up my steering wheel controls to the AN-21U, and without an interface or adapter. But shortly after putting my dash back together, I have a strange, but probably logical issue. I programmed the 5 buttons for vol+, vol-, next, previous & answer telephone.

I use PowerAmp (paid) as my music app and all of the buttons worked. After experimenting with the "reserved" buttons now my track buttons (previous & next) don't work with PowerAmp, but they do in fact work with the radio (although I'd rather select presets as opposed to scanning the entire band like most of us)

Two of the settings I experimented with were "media" and "music" but this launched the stock music app. I needed to long press the back button (so the sound routing works as I expect) but ever since this point in time I cannot for the life of me get the track seek (next & previous) buttons to work with power amp (and for some reason, the main EQ (stock app) doesn't retain my settings either.

I've tried everything short of downgrading & re-upgrading to 2.7.4 (which I'm currently at) and I haven't done a factory reset.

Does anybody have any suggestions? Thanks in advance.

Through my research, I found that adding a series resistor (each of different value under 2K) to each button and to Key1 was all I needed to do. The volume buttons & telephone answer buttons work, no matter what mode I'm in. I believe my issue has something to do with the MCU not giving up control of these two buttons to Android.

Mike
[Android Head-Units] brownstein72:
If you go to aliexpress(dot)com (and add the following to the end) /item/New-come-Android-4-2-car-DVD-GPS-for-Honda-Civic-left-2006-2011-capacitive-touch/1814246865.html?tracelog=back_to_detail_b

for this item - New come Android 4.2 car DVD GPS for Honda Civic (left) 2006-2011 capacitive touch screen 1.6GHz CPU FCC,FDA,CE,ROHS

Thinking about getting this for my 07 Civic Coupe LX. I sent questions to the seller reference the colour matching the factory dash, if it comes with a wiring harness so that I won't need anything extra and if a backup camera can be hooked up to it as well.

I am pretty new at this, what do you guys think of this unit? It appears to possibly the same unit as the AN-21 U. I am somewhat worried that the dash part will be cheap looking/feeling. The seller has a really good rating though and will pay return shipping if it sucks.
[Android Head-Units] cat2115:
replace previous com.tw.service_a5a4.apk in firmware 2.7.4 works great. No more red warming text. However, if update mcu to latest, Time will be wrong after car start-up. So, I went back to MCU 4.2.6.1-7-10-6501. With this MCU 4.2.6.1-7-10-6501, time and everything work good beside changing knob from left to right, vice verse. But i can live with it.

FYI: com.tw.service_a5a4.apk -- this is steering wheel icon

So my screen been flicker then turn all green. Seller is sending new screen replacement. I google and i think it's the ILL wire. One person said not to connect ILL wire. Hope that's the case or else had to wait for new screen.
[Android Head-Units] Zittermann:
I checked the date and time with the MCU from .96 package. Works fine. I cannot explain why this isn't working for you :(

Can you please check whether with the 2.7.4 the AF RDS function is working?
[Android Head-Units] typos1:
This is not the same as the AN21-U, this is the HuiFei unit, it has a 1.6Ghz dual core Rockchip processor, this is the thread on it :

http://xdaforums.com/showthread.php?t=2660662

This is the type of unit I intend to get now, partly because Rockchip processors are very widely used in the TV box/TV Stick market and consequently there are many, many hacks and mods already available, including I think, custom ROMs and the ability to run full desktop Ubuntu etc.