yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] p64imp:
Everything. Whenever i power off my vehicle and power it back up, the play store ceases to work period. Updates, new installs, you name it. It basically forgets who i am every time.

---------- Post added at 09:48 PM ---------- Previous post was at 09:31 PM ----------

Tried all you said above except for updating the play services. I'll try that and report the results.

I found the latest version on the play store is 4.2.42, so i searched out the apk and found this link:

http://www.mediafire.com/download/x...v4.2.42+(1013934-036)_apk-up.blogspot.com.apk

Looks legit, so i'll try installing the apk directly on my unit. Will it replace the existing version, or should i try to remove the existing version first before installing that apk? I dont want to fudge up my unit and need a factory reset, i have it too polished now to revert back to vanilla.
[Android Head-Units] webdude12:
I have ordered this same unit, but for the Audi A4. With all the adapters and CAN-BUS integration, I paid $490 including shipping. I know that seems like a lot more, but the CAN-BUS adapter can sometimes be $100 by itself. According to FedEx tracking #, I should have my unit on Friday. Will install on Saturday and post a complete review and video.
[Android Head-Units] PsychoMcSatan:
Ah, forget all that nonsense. It turns out that whichever model you choose, it will turn on the knobs (backwards). I even went back to the the MCU where the dials work properly, and I see the exact same 6 models as choices. And whichever I choose, it sets the knobs to work backwards.

I even tried some older MCUs, and it seems that those 6 models are now stuck as the only model choices. It does seem though that 4.1.0-1-10-2101 MCU does get bluetooth working, and since only my wife uses that volume knob, I think I'm okay that I made it backwards for her.

... just more confused than ever about how these MCUs work.
[Android Head-Units] blankers:
A new thread has been opened for this specific unit. Would be best to post any more info there. :D
[Android Head-Units] donaldta:
That doesn't sound right. If it forgets whom you are then it will force to add an a new Google account not require you to delete the existing one and re-add it. We might need specific errors related to the problem rather than you trying to oversimplify it. Maybe try "su -c logcat -df /mnt/sdcard/logcat-playstore.txt" after it boots and the Google Play store stops working. Then upload the file as an attachment.

Since the new thread was missed here's the link, "HuiFei - 2 DIN Pure Android 4.2.2 A9 Dual Core Car Stereo Radio Head Unit"
[Android Head-Units] Black6spdZ:
no updates in a month.. Chinese think this unit is matured now?
[Android Head-Units] PsychoMcSatan:
MCUs and model choice

I just spent another hour in a cold garage and have an odd discovery. My last MCU update was to 4.1.0-1-10-2101 as that seems to be the only one that allows bluetooth to work on my unit, but the volume and seek knobs didn't work. However, I then went in to "Choose Model" and picked one and the knobs now work, but backwards. I went in and switched to another model, but nothing changed. Bluetooth still works and knobs work backwards.

However, I just now noticed that my unit claims I have 4.1.0-7-10-2501. My unit came from the factory showing 4.1.0-7-10-2501-1, and while I had flashed 4.1.0-7-10-2501 earlier in the day, bluetooth didn't work at all after that flash so I tried a few other MCUs.

I guess it's possible that the 4.1.0-1-10-2101.zip file is just badly named, but I'm also wondering if that "Model choose" option grabs an MCU out of the etc/mcu directory and flashes it for you. The update process of flashing MCU and changing model appears identical.

Though that still doesn't explain why 4.1.0-7-10-2501 wouldn't work for me if I just flashed it manually.

Well, my volume spins the wrong way, but other than that, my unit is working fine now. But I guess the moral of the story is, don't mess with MCUs or even model switching unless you really need to because the process doesn't make any sense.
[Android Head-Units] nadmail:
Who can we donate to so they can get 4.3 on it?
[Android Head-Units] Drakey83:
You should go ahead and donate to me but it wont get you a custom rom any faster;). Unfortunately this HU has encrypted firmware to make it hard to make such a rom.
[Android Head-Units] p64imp:
What would you all recommend as the best Tasker application for Android? I would like to have my unit close out the aux display on open, open my music player and play last track, and open wayze every time by default suggestions?
[Android Head-Units] sciallo:
Any reply from them? It would really help if the sent you the right MCU,

Yes, Model change changes your MCU, that's the main thing it does. It also hides/shows certain apps according to MCU chosen (for example color change app) and it attempts to only allow you to choose between MCU compatible with your particular unit variant though in your case, not well at all. Ultimately you need to get a hold of that 4.1.0-7-10-2501-1 MCU and it seems like you'll need to demand that from your seller, who in turn will have to demand it from their manufacturer, who probably needs to demand it from their software engineering department/source...

Oh, and as far as the BT settings, I am pretty sure those are stored on the bluetooth board itself, not even the MCU. I remember not ever being able to reset those on the ouku, even after a complete reset, change of rom and MCU, there was no way to reset the BT name etc. I'm guessing your unit has a different BT board than all the rest
[Android Head-Units] p64imp:
The suggested updated to GPS worked so far... my unit auto-updated apps this morning when i drove to work. Good sign. I had an outdated version of 3.6.##. Updated to the latest 4.2.42 and it seems good so far. That may have been it... I'll update you all if it breaks again and i'll go the terminal route.

---------- Post added at 04:59 PM ---------- Previous post was at 04:58 PM ----------

Reading posts like this are exactly why i have no desire at all to update my MCU. What are the benefits anyway to endure such risk and heartache?
[Android Head-Units] PsychoMcSatan:
Sciallo might be better able to answer that question.

I think part of it is just to figure out how things work. I didn't have huge issues, but little nagging things, especially around audio. I don't know for sure that's been fixed, but it could have also been Android level software as I'd been installing and uninstalling a lot of junk. I have a clean slate now and it's definitely booting a lot quicker, probably due to cleaner Android. I'd tried most system revisions, but I'm on 2.6.62 now as I think it's the prettiest.

And to be honest, I sort of like the fact that my volume dial is reversed. I have SWC so only my wife would use it, usually when my huge random playlist would suddenly put on some Norwegian Black Metal or something and she'd quickly turn it down. I might have to set that up on our next trip to the shopping mall just to see/hear the reaction.
[Android Head-Units] sciallo:
Well, MCU controls all non android stuff and android interaction with it, so potentially there could be a lot of differences. In reality with what we know, other than the "figuring out how things work" as [MENTION=4836718]PsychoMcSatan[/MENTION] mentioned, different MCUs provide different functionalities, provided the hardware is there to support it. An example is "color change" or what I would like along with it sleep function. In my research I havent found an MCU that provides both and it seems Sleep support was dropped as they don't include an MCU with that function in any of the later roms.

Also, there might be bug fixes and improvements in later releases, I see the main version number has changed with a lot of the same subversions (or model versions however you wanna call it)

eg:

4.0.6-6-30-4501

4.1.0-6-30-4501

4.1.0 - 6-30-4501

^ MCU version - Model/variant/feature version

That second group I bet could be further split, each number there probably reppresent different things

I'm pretty sure the last part (4501) is the feature variant (eg: color-sleep), some of the middle part could be faceplate type, and somewhere in there there is can bus options...

are for the same model and provide the same functionality/hardware support. I must assume they have some improvements/bugfixes in there, but it's not clear what.

Generally speaking I would say you're right, not worth messing with if you like how your unit works. Personally I will want to achieve sleep once I get a IOIO hooked up so there is my reason....

LOL, hook up a "passenger cam" for that one :)
[Android Head-Units] KID52:
I haven't seen Peter Chan on Skype since mid January, so Haven't been able to get any updates from him. The other sellers refuse to communicate with anyone who did not buy from them, so I am unable to get any updates from them either.

Perhaps someone who purchased from Roadmaster can contact them to see if anything is available?

I was told by Peter that this unit would be getting a 4.3 update at some point.
[Android Head-Units] bmj67:
I bought direct from roadmaster and emailed them a month ago and still have gotten no response. It seems like I got my unit, they got my money and disappeared. They are probably mad that I bothered them with initial small issues regarding sygic not being uninstallable and the requests for usb password or root.
[Android Head-Units] goraax:
This problem sort of bugs me too. I'm using the RCAs to output to a stereo and mono amp (the head unit only has 1 RCA for the sub but my amp has 2 [left + right], so I had to use a splitter), my stereo amp is set to HPF while the mono is on LPF. On stock settings with the stock music player the sound was lacking a lot, it was very noticeable to me because my previous HU was a Pioneer 2450bt. So I installed (Viper's Audio) because I heard good things about it, and it seems to "balance out" the audio. I would say that it sounds better overall, but it still seems like something is missing (poor frequency response maybe?). The only time I can say my system sounds perfect is when I play full 320kbps files, if I play lower quality audio files (which were fine on my old system) there's too much contrast in the sound, i.e. the bass is super loud while I can barely heard the mid/high tones.

Someone please confirm this idea; technically any unequalized (flat profile) output from the RCAs should be 100% full sound quality with no loss from the original file. Unless there's something other than the equalizers "muddying" the sound.

Currently I'm using Viper's Audio on the flat eq profile, with my stereo amp on HPF and mono on LPF, with the bass turned up a bit so it slightly overpowers the overall sound. This is the best I've been able to get it to sound, but it still doesn't seem as good as it was on my old system.

Has anyone got any suggestions on tweaking (and hopefully perfecting) the sound?

P.S. I'm using Poweramp as my music player with it's built in EQ disabled so that Viper's Audio will work properly.
[Android Head-Units] PsychoMcSatan:
My eBay seller was fairly responsive at first when they were called our_style. Got a few responses after they changed their name to our_sty1e, but now that they're named we_styles, I haven't gotten responses in weeks. However, we_styles still has a few of my same unit for sale on eBay so perhaps it's time for me to use an AKA eBay ID to ask some "you haven't got my money yet, but I'd like to give you some of it" questions.
[Android Head-Units] terciofilho:
Radio Station Favorite not saving

Hi!

I bought this unit for my Ford Focus MK2,5.

After a failed root attempt, I factory restored my unit and upgraded the firmware to the current System Version 2.6.70.

But now my Radio doesn't store favorites. It stores, but, after power off it "forget" all favorites.

I found a user that had the same problem here in the thread, but there is no solution so far.

Thanks.
[Android Head-Units] sciallo:
Is your "B+" yellow wire connected to a permanent 12v. source? only the "Acc" red wire needs to be connected to key switched power. AFAIK stations are stored by the MCU and are lost like any other car radio if battery is disconnected.
[Android Head-Units] terciofilho:
Hi!

Yes, it is. It was working before I attempted to root. After I tried to root, the unit became sluggish, and I fortunately could factory reset(The keyboard didn't show up, was black, I inserted the password using a USB keyboard). After the factory reset, the unit is working again, but the radio doesn't store the favorites.
[Android Head-Units] PsychoMcSatan:
Sounds more like an Android level permissions thing. I think when you lose battery, your favourites stay but your current station is lost and you go back to 87.9. Actually, I'm sure of this because I've been fiddling with my car battery and any time it's disconnected, on next power up I get the static of 87.9, but then I can switch to one of my saved stations. So anyway, the saved stations are possibly written to disk, but in your case they're not being written or read properly.

Have you tried the rooting process again? If your unit was sluggish after the root, I think perhaps you weren't successful in deleting /data/local.prop which is the last step. (actually second last step... there's one more reboot after that)
[Android Head-Units] gghghgh:
New firmware

https://www.dropbox.com/s/t4ds4rooa975v3y/Android4.1 System update（2014.2.13）.rar

Today got a new firmware (2.6.72 supposed to be) from the factory worker.... I didn't try it yet, will do only this evening
[Android Head-Units] merit40:
hello, has the Italian language?
[Android Head-Units] zzzody:
Where it says that it is 72th ? and that it is new ?
[Android Head-Units] terciofilho:
Hi!

Seems to be. User merit40 told me that he restored to 60-2, then 62 and then 70 and it solved his issue. I'll try that too.

Thanks.
[Android Head-Units] gghghgh:
2.6.73

I installed this update...it is 2.6.73 now
[Android Head-Units] Drakey83:
anything new?
[Android Head-Units] gghghgh:
2.6.73

As usually from this manufacturer. ....there is nothing new! I see no changes....no new usb modems supported, just nothing
[Android Head-Units] donaldta:
LOL. I guess it is not 2.6.72 :silly:

Anyways, the largest file (presumably system.img), "8e3513e2-ea4a-11e2-8a0f-000c29ba27c0", has a written timestamp of 2/13/2014 5:38 PM, so it is definitely newer than anything we have listed in the wiki or the initial post

[URL="https://www.dropbox.com/s/t4ds4rooa975v3y/Android4.1%20System%20update%EF%BC%882014.2.13%EF%BC%89.rar"]Android4.1 System update（2014.2.13）.rar[/URL]
[B]md5 sum[/B]: 85a777b429ef69c5ba40ed11f375c0e9 md5

8baf147e-ea4a-11e2-b181-000c29ba27c0 [B]md5[/B]: 26d80a969c6a884f657529ab5a3b9896 [B]Size[/B] (KB): 513
8d8d1b1a-ea4a-11e2-a661-000c29ba27c0 [B]md5[/B]: 75b5eeeb0a40e5bc8d204ef9ed66b767 [B]Size[/B] (KB): 8,146
8e3513e2-ea4a-11e2-8a0f-000c29ba27c0 [B]md5[/B]: 2055b69c44fc3696059cc3203e360271 [B]Size[/B] (KB): 134,326
8ffd2eb4-ea4d-11e2-b23a-000c29ba27c0 [B]md5[/B]: 680b822e807932f9ec84cc1646beacc0 [B]Size[/B] (KB): 1,706
[Android Head-Units] PsychoMcSatan:
How about the homescreen layout? Is it still the four large widgets like in .70? I'm sticking with .62 right now because of its cleaner layout.

Also, one of the recent YouTube showed someone running .72 and it seemed to have the older radio app (which I actually prefer).

I might just go ahead an install it. There must be something "new" in there if they went through the trouble to compile it.
[Android Head-Units] donaldta:
I am curious. If you like that launcher so much then why don't you just make a backup of it from /system/app then install it on the other version that you apply?

It could just be bug fixes.
[Android Head-Units] PsychoMcSatan:
I would have guessed the homescreen layout/functionality is a bit more integrated into the android system somehow. Are you saying there's one particular apk in there that I'd just install over .73?
[Android Head-Units] donaldta:
No, the "homescreen" is just a launcher. The launcher can be replaced or even installed as an "update". The stock launchers for the AN-21U may have more integration with its MPU than the generic launcher apps that you find on Google Play. But, you should be able to swap launchers between versions if that's what you want. I included a copy of the launcher from what I think is 2.6.62 version.
[Android Head-Units] gghghgh:
launcher

Yes you can easily replace with your launcher from 2.6.62...just copy and replace com.android.launcher2_7819.apk in system/apps. But you'd better to save old version somewhere
[Android Head-Units] PsychoMcSatan:
Worked like a charm.

As for what's new in .73? I played around for a bit, but nothing obvious that I could see. It appears to come with the same MCU files as .70 so nothing new there either.
[Android Head-Units] zzzody:
Version updatings here is going generally very strange...

Nothing much useful appeared. Still not been able to entered the BT dongle' module in the firmware. It is not difficult. It has already been introduced in version 2.3.7 with Android. Why will not make it similar ?

Why don't make every version with ROOT at once ?

and etc...
[Android Head-Units] Baldrick99:
Happy

Just bought one of these units and I have to say how pleasantly surprised I was at how good it is.

The display is crisp and bright, and the audio, in my opinion, is as good as the stock head unit. I know some folk have criticised the audio, but I think it's good. I only have stock speakers which are not brilliant ,I know , but I'm happy with it. The RDS on the radio works well and the satnav is perfect.

If you're in any doubts about getting one.....go ahead.

The only problem I have with mine is that it doesn't fit the facia. My old radio facia was 200 x 98 and this is 180 x 100, so I have a gap left and right and it is slightly too small top and bottom. This means I have to mess with the facia before I can refit it. I am reluctant to do this.

I just found a seller with one that fits my car ( I didn't know these we're available ) so I'm thinking I might get this one and sell the original.

Hmmmm..........thinking hard......
[Android Head-Units] mad212:
Question for you or donaldta about the Startech USB hub. I bought one of these about a month ago for my tablet install but I scratched the tablet and just picked up one of these android head units. I'm going to work on my install this weekend.

I see I need to remove the U jumper. After I do that do I wire the 12v power and ground from the head unit to the front power panel with the screwdowns or does removing the U jumper mean I will get power directly from the USB port 0? I've never used a 12v relay before. Is that necessary when hooking up this hub in the car. Is there any way you could draw a diagram of how its wired? Also are you running the hub through the rear usb on the head unit and hooking the wifi dongle to the hub or out the front usb port? I wasnt sure if that rear usb port is only for the wifi dongle. :confused:
[Android Head-Units] donaldta:
Removing the "U" jumper allows you to isolate the power from the headunit. The idea of using this hub with the head units is to prevent shorting out the head unit's power bus from pulling too much power with various USB devices. Once you remove the "U" jumper, you will need to supply power from a different source to feed the green terminal in the front. You can use the same wire that is feeding the yellow wire for your head unit if you wish but remember that is an "always" powered connection.

No, but it is helpful if you want to turn on/off the power to the hub along with the ignition. Check Post #1959 where I answered the same question.

Electronically, it doesn't matter if you use the front or the rear. Although, aesthetic-sake and convenience-wise, you will want to use the rear.

---------- Post added at 03:11 PM ---------- Previous post was at 03:04 PM ----------

It is very easy to make snap judgements about something being "easy" when you have no clue what it entails. I recommend that you try reading , the "MCU Explained article before making such ridiculous claims.

Most manufacturers do not supply root and most make it difficult to gain root.
[Android Head-Units] mad212:
So I could use a "tap a fuse" and run power from say the cigarette lighter fuse since that powers off when the ignition is off? Where are you getting your power from?
[Android Head-Units] donaldta:
Sure, you can use a fuse tap for your cigarette lighter, but not all cigarette outlets power off with the ignition.

Post #1954
[Android Head-Units] djblaze852002:
I plan on tapping into the cigarette lighter as well. I dont see a need for any relays as my cigarette lighter power turns on and off with the ignition. Let me know how it goes. I can't do my install until the weather warms up!
[Android Head-Units] Baldrick99:
wifi

I find that the wifi dongle that came with the unit gives me poor reception when I'm parked outside my house.

I tried another one by d-link and one by Netgear, but neither of them was recognised.

Does anyone know another make or model that will work better than the cheap chinese one ?
[Android Head-Units] donaldta:
Is the "search this thread" tool broken for everyone else but me? :eek:

Post #1621
[Android Head-Units] PsychoMcSatan:
Check this post: http://xdaforums.com/showpost.php?p=49483287&postcount=1425

as it has a list of adapters that use the same chipset. However, I tried the Asus N13 which is on the list with no luck. However a Dlink DWA-121 works great.
[Android Head-Units] Baldrick99:
Thanks for your help. I saw this list but I was hoping for some feedback on dongles that others have tried successfully.

Seems like I will have to get a dwa-121.....:D
[Android Head-Units] bagelicious:
I've searched the thread and didn't find this question asked anywhere. Does anyone know if you can install Ingress on this device? Does it work in landscape? I saw it on a tablet landscape once and the buttons would not display properly. I'd love to install this in my car to play Ingress with.

Thanks!
[Android Head-Units] jhintz20:
I can confirm that my Bluetooth OBDII works with the model E-579AGNR, which I initially found in the following thread:

http://xdaforums.com/showthread.php?t=2565717

I first tried a USB OBDII module with no success. Then for the hell of it, I plugged my Bluetooth elm327 in that I've used with my phone before. After plugging it in, I pressed the Bluetooth button on the head unit. Then I hit the search button on screen and it found a device named OBDII. I had it connect to it.

Then I opened up Torque and switched to using Bluetooth in the settings. It connected and I can confirm it works. It shows all the correct readings for my GTO just like it has before using my phone. But now I don't even have to use my phone.
[Android Head-Units] jonalowe:
Please provide a link to this unit you bought. This is the first I've seen that a Bluetooth OBD adapter works with one of these units.
[Android Head-Units] typos1:
What format is the music you are listening to in ?

What voltage are the pre-outs ? BTW
[Android Head-Units] jhintz20:
I'm not allowed to post outside links yet. Did you not look at the thread I posted? It's in there.
[Android Head-Units] jonalowe:
Yes, just trying to make sure you ordered from the source in the first post. There are so many sources for these things, its hard to be sure who ordered from where.
[Android Head-Units] gpmg762:
http://www.aliexpress.com/item/2-di...-GPS-Wifi-Bluetooth-Dual-core/1505304660.html
[Android Head-Units] Baldrick99:
Selling my unit.

As my unit doesn't fit my car facia, I've decided to sell it and buy the correct ones or my vehicle.

It's the generic 4.1.1 android double din unit, perfect working order, as new, not been flashed or messed with.

The size of the front facia is 180 x 100mm.

Selling in u.k for £250 including courier delivery. Can be see or picked up from Swansea if you live close.

Pm me for more info.