yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] chanh55:
Unbrick?

I have the 2 knob version. Anyone know how to unbrick this thing? It's from China and I would hate to wait for a replacement and send back the old unit, probably will cost a lot just for shipping.

I didn't update the firmware or change anything to it except for install some music player apps, all I'm getting is a white screen. No hard reset combinations seem to be working. The buttons are still green from when I changed it and I'm getting sounds (white noise).

Is there a working method to force it downoad the firmware on the SD card? Will a USB Jig work? Has anyone had any success unbricking this thing?
[Android Head-Units] jpapadami:
Best music player for this unit

Is there any way to get the stock music player to not work in conjunction with a custom music player? Right now I am using Poweramp and I've tried pressing the back button on the Radio so that the sound works through Poweramp, but it doesn't seem to do anything as there is still no sound.

The sound through Poweramp only works when I start the stock music app. Also, when using the steering wheel control to go to the prev/next song, it automatically activates both players. The wired thing is that when I click Next on the steering wheel control it activates both players, press Next it turns off Poweramp, press Next again and it turns Poweramp back on. In other words, every other song uses both players when using the SWC. I didn't have this problem at the beginning when I flashed 2.7.4, but somewhere down the line it starting happening. I'm not sure if I did something or it just started all on its own.

What I am ultimately looking for is for a way to get a music player to work with the the SWC like the stock music app does, but without activating the stock music player. Any help would gladly be appreciated.
[Android Head-Units] PsychoMcSatan:
Try a reset (stick a paperclip in the little reset button hole) or temporarily disconnect your battery.
[Android Head-Units] MFKinSINY:
Im sort of in the same boat, or was in the same boat but not fully out of the woods yet. With the sound, check under system settings & check to make sure that "intelligent" is selected under sound priority, as opposed to the other two options (I forget what they are, but one is 3rd party apps & the other refers to system apps) and I'm working on my swc issue. The next & previous buttons were working with power amp when I first got them working, but I messed with some settings in power amp that messed it up (i.e my vol up/down works no matter what app I'm using and so does "answer" for the bluetooth app. My prev/next buttons work with the radio but not with power amp. They were working initially though & on this current firmware 2.7.4. Look 3 -5 posts back. tdt038 gave me some real good insight in two posts regarding bluetooth control. When & if I nail it, I will post back. If you figure it out, please post what you learned. Right now, Im stuck at work but should be posting back (hopefully with some good infi) in a few hours. Thanks & good luck. Mike.
[Android Head-Units] MFKinSINY:
OK.... I finally got mine to work thanks to a response by tdt038 to my post on this same/similar subject. Try what I mentioned earlier regarding sound priority first. Then, in PowerAmp go to Settings, Headset/Bluetooth, scroll down to the subsection labeled "buttons" and put a check in the box fpr "Respond to Buttons" This fixed my swc issue and I am currently not having any problems with audio routing. Also, I would open the stock music app, long press the back button then open the radio app & long press the back button. Open PowerAmp & make sure a song is playing & shut down the AN-21U & boot it back up. You "should be" ok from there on. Good luck!!!
[Android Head-Units] MFKinSINY:
Thanks!!! This did the trick. I didn't experience any "random" issues with the panel buttons though like you were/are having. Maybe, you want to check your system settings and see if you inadvertently programmed the panel buttons to do something you don't want. Or you possibly may have an incompatible mcu file loaded. Thanks for your help!
[Android Head-Units] ryrager:
Broken Headunit

Hi

I just received my unit, was running 2.7.4 from factory. I tried to Root the device and now I'm stuck, the screen goes black and I am unable to see the screen. how do I factory default the unit to start again? There is some visuals onscreen during a redraw but as soon as it goes stable it blanks. Its running the apps fine just very slow screen now :(
[Android Head-Units] alpha1172:
Screen goes black after reboot during root. Hit back button. It's in aux mode. Also it will run slow until you Input the lady command and reboot
[Android Head-Units] ryrager:
PowerAmp issues

How did you get PowerAmp to install, its says "Not available for this devices" in PlayStore ... :(
[Android Head-Units] Miwer:
What does the lady command do? :D;)
[Android Head-Units] ryrager:
Yes but I can't see anything on the screen so can't run any commands.... lady command? I just end up 4 black boxes on the screen and the background ...can't seem to see any icons except for a split second.
[Android Head-Units] Miwer:
I think alpha ment to say the "last" command - don't let the lady mess with your unit :cool:

Anyway, after first step of root, the unit will be in emulator mode, and things will be very slow. Try to press the buttons a little longer than you normally would do.
[Android Head-Units] ryrager:
I think it is something to do with the Launcher, its quite different to the one in the video.... it has 4 big buttons on the screen and you have to swipe up to get to the apps.

Grrr... really want to have PowerAmp
[Android Head-Units] Miwer:
I'm confused now... the video in the OP shows a launcher with 4 big buttons and you have to swipe up to get to the apps (actually you can just press the little up arrow)

I have the same launcher, and I had no problems rooting (yes I got the black screen, since it starts the AUX app, but I could use the buttons to close it and get back to the launcher).

Isn't this the same launcher you have?

Have you tried to hold down the back button when you have the black screen? (3-5 seconds, to fully close the AUX app)

Edit: I actually don't know if fully closing the AUX app is bad for the root process step 2 - anyone know?
[Android Head-Units] ryrager:
Yup that's the one ... will try again..... thanks... followed steps exactly.... until I couldn't see screen :(

I'm on Firmware 2.7.4
[Android Head-Units] Cebulon48:
Hi, can someone confirm that telephony is working with this unit?

Unit is successfuly paired to Samsung Galaxy S2,call is going out and being received.

Just the other side cannot hear me (internal microphone of HU is used)

Thanks

2.) Still cannot root this unit (T7019a) following the steps by the word.

I get a parsing error when trying to install the Rootmy21u1.4. apk

I really need a hint on this, to work on

Oliver

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Nichts hält so lange, wie ein Provisorium

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[Android Head-Units] jpapadami:
Thanks for the feedback. Unfortunately, this didn't work for me, but Shadowmike's suggestion of hard reseting the device worked. Now everything works how it's supposed to.
[Android Head-Units] ryrager:
I had same issue. Run it from SD card not USB... that was my mistake
[Android Head-Units] MFKinSINY:
Sounds like you might have a bad mic (pun intended). Or maybe a setting on your S2 isnt correct. Call your home and leave a voicemail, get really close to the head unit when you speak. Verify this on your own, do not rely on anyone else hearing you. Listen to your voicemail. Faint? Crackly? Absent? As for the parsing error, make sure you have the correct settings. It may be under "developer options" for side loading. (I.e. uncheck "verify apps over usb" "allow unknown sources" and use your home pc to download the rootmy app and transfer it to a usb stick or micro sd. If this dont help, try a different file manager. I use "es file explorer" and "root file manager" both work great. Sometimes though, if i get "copy failed" with root file explorer, i can successfully copy with es file explorer, and vice versa. I havent figured this one out yet, probably a setting in one or both apps. A parsing error could mean a corrupt download, just re-download & try again, but its likely the file manager. Good luck.
[Android Head-Units] cat2115:
You don't need video to root. Here's how you root. It's on OP first post. Latest firmware will not install superUser after rooting. U need to manually installed.

Root:

Install terminal emulator

Install Root_My_AN-21_U don't open

Make shortcut on Home screen

Open AUX and then press Home

Click Root app

Click 1 --> ok

Reboot unit manually

Black screen, click Home button

Click Root app

Click 2 --> ok

Reboot unit manually

Black screen, click Home button

Install superUser

Open Terminal and type

su

rm /data/local.prop

Reboot unit manually

Done

Is your unit with two knob(right vol and left band)? What mcu is your unit? Thx
[Android Head-Units] Serg1o:
I have 1 knob version but with the same inner "things". It's bricked and I didn't find the way to restore normal work of it, unfortunately. I've got the "special" firmware from a seller and the way how to update it but that didn't help.

Tell me, please, what is the suggestion?

Thanks
[Android Head-Units] skezza:
I'm very tempted by one of these, can anyone say whether they're worth it? Are there better etc?
[Android Head-Units] cat2115:
To be honest at a price of $400, i don't think it worth it. At that price you would expect everything to work from stock. Plus so far 3 people including me got defective unit and had to wait for a replacement. That's the only option since return shipping to China is very expensive, If i can turn back the time, i would just buy normal 2din touch screen with gps/dvd. But then it's your call.
[Android Head-Units] jpapadami:
I think it really depends on the product and the seller. I'm aware that a couple other people have had bad experience with your eBay seller and with the product. I for example, bought this 2014 model from the designated seller and have had nothing but good things and everything works perfectly. A couple of small software bugs, but have already resolved them with the help of this forum. One very positive thing about buying this car stereo is that you have a lot of support from the community. The only problem is when you encounter hardware issues, but I think that really depends on the seller and from which manufacturer he is getting the units from. Keep all of this in mind when making a decision whether to buy or not. Ask around for models and their experience with specific sellers (eBay or AliExpress)
[Android Head-Units] cat2115:
Maybe I and a few others had bad luck. I think all of us got it from ebay seller id beststylegifts. Excellent customer services but with defective unit. So, if you planning to get it, i guess use http://www.aliexpress.com
[Android Head-Units] jpapadami:
What I normally do is install apps on my phone and then use APK Extractor to extract the app to an apk file.
[Android Head-Units] ngy:
hi guys, I recently picked up one of these units, but it does not have any gapps on, not even the play store, nor google framework. is there a way to add it back in?
[Android Head-Units] PsychoMcSatan:
Copy over the required .apk files from another Android device.
[Android Head-Units] ngy:
thanks for the quick reply, which files do i need, and where do i copy to?
[Android Head-Units] PsychoMcSatan:
Hmmm... not sure which specific files you'd need, though I know there's been discussions in this thread in the past about bringing specific gapps up to date.

Once you find the .apk you need, you just use the apk installer that should be included on the radio.

Try some Googling. There are tons of results on the subject.
[Android Head-Units] ngy:
thanks. problem is all my devices are currently running kitkat, so I don't have apks (ie google framework) for jellybean. any one know or have apks for this radio?

thanks
[Android Head-Units] PsychoMcSatan:
Found this link which I believe are JellyBean apps:

http://theunlockr.com/2012/04/17/how-to-install-the-android-market-and-other-google-apps-on-the-impression-i10-9-7-tablet/
[Android Head-Units] ngy:
i would need to root the radio first then I guess?
[Android Head-Units] MFKinSINY:
Shop around! I did a search for "CAPACITIVE Touch Android4.1 Universal 2Din Car DVD PC Stereo Radio GPS WiFi 3G" (without quotes) and then looked at some on eBay & took my chances like anyone else. I've had zero problems with mine & have had it for almost 2 months. Some quirks & bumbs in the road to get past, but thanks to this forum & some very helpful & intelligent people my problems were easily rectified.

I got mine from an eBay store for $300 (free shipping) and had it in my hands in less than a week. Packaged nicely. Before I noticed that the manual was actually "in" the unit (pdf & video) I emailed the seller asking about the manual & he emailed me the pdf within the hour so I can assume their customer support is ok. I like this unit, but everyone has their own preferences. As far as problems, I've had basically none. Good luck!

The name of the eBay store was "newdealestore" and the website it linked to was LightInTheBox.com

http://www.ebay.com/itm/CAPACITIVE-...VD-PC-Stereo-Radio-GPS-WiFi-3G-/111284330868?

http://www.lightinthebox.com/index....itive+touch+android+4.1+2+din+dvd+gps+wifi+3g
[Android Head-Units] j2gifted:
Thats where I got mine... waiting on my replacement now. Hoping the replacement is defect free.
[Android Head-Units] chanh55:
She sent me some system files to try to update it but the unit doesn't respond to anything... Always a white screen. I guess I will have to cut all the wires I soldered to my car's wire harness and try to get a full refund... it's going to cost so much just to ship it back, might be easier to just keep it.
[Android Head-Units] MFKinSINY:
Sideload the APK. You need to check some system settings first (I think they're under developer options) i.e. "allow install of apps from unknown sources" or something like that.

Install WonderShare MobileGo on your home PC.

http://www.wondershare.net/android-manager/?icn=nav

Install PowerAmp on your Android Phone. Connect phone to PC. Use MobileGo to transfer apps, contact, pictures, calendar.....anything to a usb stick or micro sd card.. Put the stick or card in the head unit & install the PowerAmp APK.
[Android Head-Units] ngy:
If I flash a rom from the wiki, does it contain the play store in the rom? or will I still need to add it separately? I thought these units were supposed to come with all the google framework/gapps built in!
[Android Head-Units] cat2115:
Odd,, in my unit under Developer Options, I don't even have "Unknown". I can install apk just find even without rooting.

---------- Post added at 12:57 PM ---------- Previous post was at 12:55 PM ----------

I think just install latest firmware or your stock firmware from OP link. You should get all the gapps.
[Android Head-Units] ngy:
yeah i think i'll try that tonight. thanks.
[Android Head-Units] jpapadami:
Outgoing Calls with Tablet Talk

Has anyone been able to achieve this from post #2608 to be able to make outgoing calls with Tablet Talk? I can't connect it to my Galaxy S2. I just can't connect Tablet Talk to my phone via bluetooth. My phone is connected to the unit, but when searching for phones via Tablet Talk nothing shows up.
[Android Head-Units] shadowmike:
I also got mine from beststylegifts, had no defects....

Current owners of mine though have no WiFi adapter, no Ian cables, no iPod connector. Lol

I don't trust aliexpress because it's the same as eBay, just resellers... I'll stick with beststylegifts with my next radio purchase

Btw beststylegifts have old firmware versions. Don't install them unless they give you a system number with it

AN-21 DEV www.dropbox.com/sh/j6lx4vkoqcm6kow/MDs6vhsuHG
[Android Head-Units] j2gifted:
Mine came with all the proper cables and worked pretty well out of the box . The DVD drive didnt work at all though. Thats why I sent it back... I sent back everything accept the wiring harness bcuz I already had that wired to my vehicle... so when I get the new when I can juat plug in and go.

[MENTION=822076]shadowmike[/MENTION] did you the reverse camera also? Mine came with it but I couldnt reasonably figure out hownto install it. No instructions, and the wires on the cam didnt make much sense to me either
[Android Head-Units] Gr00ven:
I have the exact unit as you and the MCU version mine came with is... 4.2.13-8-10-E501 (works perfect)

Hope it helps :o
[Android Head-Units] cat2115:
Will it cause harm if I already install it? They gave me system 2.6.70.

My backup camera works fine. On top of the unit, there's a diagram. I think Brown wire is for reverse. On RCA, it said Camera - In. Picture is nice and colorful (feel like HD) and i set to have music play while on reverse. Then when on drive it's back on home and music still play.

If you backup cam like mine. This is how i connect. 2 red wire of Cam connect to car reverse wire, and black wire of Cam connect to black wire of car reverse wire
[Android Head-Units] j2gifted:
Yea thats how the wires are for the camera they sent. Only difference is the camera itself. Mine connects to the license plate.

I have reverse wires in the harness at behind the radio so I dont have to cut in to the tail light. One reverse wire from car, the other from radio so to be clear let make sure ibgotnwhats ur saying.

The long black wire, and the to short red wires at each end of the cable ALL get wired together to the reverse wires [one from car, other from radio]? And obviously the one rca connector goes in the reverse cam plug... is this correct?

Also, since the one part of the red wire closest to the camera end IS NOT long enough to reach to the front of the car, does that mean I have to buy some more cable to extended and I'll be good?

---------- Post added at 04:47 PM ---------- Previous post was at 04:42 PM ----------

I assumed that I only had to connect one end of tge red wire to reverse (depending on whether or not I cut into the tail light, or went to the harness), and connect the black to ground.
[Android Head-Units] cat2115:
What I did was the 2 red wire (long and short) of Cam, I tie it together then take tied red wire and connect to car reverser wire. The black wire Cam is also connected to black wire of the car reverse wire.

The third red wire connect to brown wire of unit harness. then connect RCA to Cam-in of the head unit.
[Android Head-Units] j2gifted:
Sorry bro, im having a little difficulty understanding your directions. You said something about a 3rd red wire but theyre only 2.

Also, u said connect the black wire to a black reverse wire? I didnt aee a black reverse wire... just the one brown.
[Android Head-Units] MFKinSINY:
My unit didn't come with a backup cam & I'm shopping around for one. Would you happen to know the make/model of your com? If not, would you know if I need to look for a cam that superimposes the distance markers (the green/yellow/red lines) or does the AN-21U handle that? I dont want to get a cam that makes lines if the HU makes lines as well. That could cause an accident lol, or just look stupid. Thanks
[Android Head-Units] anpo:
I think you're all just confusing things by not give them their proper name, the "car reverser wire" mentioned should be either "cars reverse light positive wire" or "cars reverse light negative wire". You tap into your revese light to both power your camera and send a signal to HU that car now is in reverse and it should switch to camera view.

Here's how I would connect:

www . dropbox . com/s/yla9hqzsp5m7a0a/backup%20camera%20wires.png

Sorry cant post image or link. Will someone upload that image as an attachment for me please?
[Android Head-Units] jpapadami:
The distance markers are part of the camera and not the unit, because when I adjust my camera the markers move with it.

I would be interested if anybody knows if it's possible to replace the markers with different ones. Some cameras have better distance markers than others. Depending on the camera will depend what distance markers you get. Some are with green/yellow/red lines, others are only yellow with number markers, etc..
[Android Head-Units] Cebulon48:
Hi [MENTION=5816854]MFKinSINY[/MENTION]

thanks for your reply.

Yes, it is a bad mic, I found out getting very close to the internal mic talking, I got a very distorted faint voice on voicemail.

I tried that already prior posting my question but at that time I got NO voice. That's why.

I know now and it makes sense now to replace it either with the oem one, or even get the parrot one. (according a DIY)

For rooting, I will try again in a few days and report back.

Oliver

=====================================

Nichts hält so lange, wie ein Provisorium

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[Android Head-Units] cat2115:
I have 3 red wire and one black wire which all stuck to the RCA of the Cam. The third red wire was the one that connect to brown wire of the unit harness. I go to the back of my car, connect the 2 red wire to one of the car reverse wire. In my case, my car wire in green/white. Then the black wire of Cam tap into car wire, for my car that wire is black/white.

[MENTION=5816854]MFKinSINY[/MENTION], sorry there's no make/model on the Cam. I think the superimposes is from the Cam cuz if I turn the Cam left/right, the superimposes also move.

---------- Post added at 08:32 AM ---------- Previous post was at 08:00 AM ----------

Thanks for the diagram. I customize the pic to how it actually look like for my Cam.
[Android Head-Units] sciallo:
Is button order/labeling the same? Volume knob on the right? (I think they used a photo of a different non android unit with a screenshot of the android pasted in it, but please confirm) Or is it more like the one [MENTION=1075158]omarko[/MENTION] linked http://www.ebay.com/itm/Android-4-1...prg=1088&rk=4&rkt=5&sd=190966351335&#shpCntId

(I do believe it's another storefront for the same seller "our_style" BTW)
[Android Head-Units] PsychoMcSatan:
Physically mines exactly like the one in the aliexpress link I posted.

Volume on the right, though my steering wheel controls work fine so I use them.

PMS
[Android Head-Units] bmj67:
Your specs are the same as mine. The button layout should not matter and if the root app does mess with it you can reset them in the extra settings menu.

Do as donaldta says and dl the v1.4 root app and follow the directions on page one. Make sure you have aux app open before you run the root.

Root will allow you to run a variety of apps that require root permissions. From permission managers which block apps from reading and sending your data back to them, to backup or antivirus programs. And hopefully in the future we will have custom themes and the ability to use a usb bluetooth adapter which will need root to install.
[Android Head-Units] sciallo:
[MENTION=5554780]bmj67[/MENTION] is correct, button layout shouldn't matter... I'm just surprised, this is the first android unit I see in that style with that button layout without a "menu" label (that was used on units that don't run android).... It will be funny to have a randomly labeled button for menu.

What are the knobs "push" associated with?
[Android Head-Units] Defender666:
I would prefare they made it with 7 inch display and remove the DVD and remove the Analog TV on the basic version. No one need DVD on an Android Multimedia Headunit.

I have the original unit and the push knob is without function.