yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] macca017:
They remain.
[Android Head-Units] soupape25:
No sound after "reset factory"

Hello everybody ;)

First im sorry for my English im French...

I try hard solution on internet but i do not find anything, So i have a "EW801P" in my bmw and since 3 mounts i havent got music, i am Max volume and i have not sound :(

Have you got a solution please ???

Thanks you very much.
[Android Head-Units] drlifewhy:
Thanks for Sharing your trial Actually i didn't try this method yet , i didn't try connecting via wifi yet but after you shared your experience i think i won't give it a try on my unit
[Android Head-Units] Edgaras7777:
Hello, maybe now who know how need resolve this problem?

https://www.youtube.com/watch?v=fGWHCW0AuMQ
[Android Head-Units] wanxu:
I think there's an option to calibrate screen somewhere.
[Android Head-Units] perieanu.ovidiu:
just install 2.8.8 or latest redmod

in you are in ile de france by chance contact me,i'm in sartrouville
[Android Head-Units] picozzo:
Hello to all

I have a big problem. Help please!!!!

I installed the MCU wrong and now the radio is boot loop with black screen.

It is possible to reset the radio.

I'm desperate!!!! HELP THANKS
[Android Head-Units] Edgaras7777:
Calibration option dont help it for this problem. i try it.

Settings-extra settings-touch area.
[Android Head-Units] qbattersby:
Help? Calibration issue, BT issue, settings saving, etc.

Hi,

So I have a unit I purchased from eBay and I made the mistake of flashing a custom rom, specifically I started with RedMod v2.6 (I believe it was 2.6). Everything worked fine except I could not get Bluetooth working at all. I would input my settings and search for my phone with no luck. I would exit the app or reset the device and the settings would not stay in the phone app.

So after this I thought I would flash the device back to an earlier rom. I used the wiki (I know big mistake) and flash 2.7.40 back onto the device, it didnt boot. So than I found another version likely 2.9.5 and flashed the device and got back up and running. Now bluetooth still doesnt work however the biggest issue is that the screen calibration is off. It was inverted which I fixed by changing a setting for Position in Touch Area settings to Top (from a YouTube video). I have also looked at all other methods of fixing the inverted screen (the google site, etc where you pull the script.bin and edit it) but none have fixed the issue for me. The file script.bin does not exist on my device.

I asked the seller I bought it from for the firmware to restore and they send me v2.9.5 but a slightly older one than one I found through various searches the 4pda and here. So I am back to exactly what I had originally before I flashed but Bluetooth or my touchscreen work properly. Can anyone help?

Here is what I had originally, I was back to that but recently put RedMod 2.7 back on as both dont work correctly and RedMod looks nicer.

Can anyone help me get my Bluetooth and Touchscreen fixed?

CPU

Cortex A9 dual core (I believe it is MStar Cedric)

RAM

1GB DDR3

Android

4.4.4

MCU version

4.3.14-1-10-610101-150525

System Version

2.9.5_20150722

DVD Version

2.13.15-860mc-150417

I would be so grateful for a solution. I am almost about to buy a replacement. :(
[Android Head-Units] Vee63b:
Do you still have the backup for the codes by chance?
[Android Head-Units] chechevara:
Hi! I have same model unit. Also i have a problem with Bluetooth. it dosent work anymore. I put a firmware from a russian site. everything works good but no BT anymore. And i have a liitle red text line (UI is not compatible, contact your seller) but i can live with this

Can anyone give us some help?

This is the russian site (i used traslate page from chrome :) 4pda.ru/forum/lofiversion/index.php?t522762-12320.html (just copy the link and put it in your browser)

Thax guys!!!
[Android Head-Units] roystervi:
Hi I just upgraded to RedMod_0.2.61 and the Bluetooth did not work also. On my phone I just "forget this device" and on the car radio I delete all service although it did not had nothing connected. In the Bluetooth section then do a search from the radio and enter the password on the phone. it said it connected on my phone but did not work until I restarted the radio and its working find again. hope this help...
[Android Head-Units] saneboy:
Radio presets

Can anyone tell me how to set the radio presets in RedMod?

I've been tuning the radio, then doing a long press on one of the numbered buttons, then entering a label. Unfortunately when I use the preset, it does not retain the station frequency.

Would appreciate any help. I'm sure its something simple.

S
[Android Head-Units] roystervi:
What works for me. I would Just find the station and then drag and drop the station to a preset number .
[Android Head-Units] saneboy:
Thanks. I'll give that a try.
[Android Head-Units] roystervi:
RedMOD

I just install REDMOD over the weekend and it shows I have upgraded from RedMod_0.2.2 to the RedMod_0.2.61. However I have not seen any change to my unit OS or any improved app or any new apps. Does anyone knows what new in the latest RedMod because I can't tell the diff from my previous RedMod_0.2.2 that was installed.

thanks in advance

PS. any screen shots welcome
[Android Head-Units] perieanu.ovidiu:
http://4pda.ru/forum/index.php?showtopic=641709&st=760#entry39934174

there you have latest Redmod and some description for the current update,photos,video bla bla bla
[Android Head-Units] chechevara:
I haveflashed RedMOD firmware (version 2.7) and i really like it. It is already rooted which is excellent. the problems do i have is with presets radio and with Bluetooth. The icon is present on status bar, but the unit cannot be find by any device and the unit device cannot find any other device too. also pairing settings are not kept after reboot. I wonder if that means that is a bad communication between MCU and firmware?

can anyone help me with this BT problem?
[Android Head-Units] roystervi:
Thanks I check it out and the whole site is in Russian I guess... I have down load ver.0.2.7 is it the English version ??

Thanks
[Android Head-Units] perieanu.ovidiu:
yap english with a little touch of russian

---------- Post added at 11:55 AM ---------- Previous post was at 11:52 AM ----------

just verify in your config if you have bc5 or bc6 and modify accordingly(a good idea is to set/reset the case one time even it seems correct...).maybe he passed to the other bluetooth variant...I saw people reporting it did
[Android Head-Units] chechevara:
I have only BC6 in my General/Extra Settings/config info and i tried checked and unchecked but nothing happening. And what means set/reset the case - how can i do this?
[Android Head-Units] perieanu.ovidiu:
you did wright,my bad ...I ment unchecked,reset radio (off,on),after this checked and off-onn trick.if nothing happens,reflash 2.8.8.if this does't work also,BT module is bad.do a factory reset to be sure after reflash and verify the bc5 setting.

I rest my case :)
[Android Head-Units] lorobest:
Which unit you have buyed? For EW842P I have the mcu and the rom

Inviato dal mio SGH-I337M utilizzando Tapatalk
[Android Head-Units] wanxu:
By the way, Poweramp is on sale on Google Play! 0,50€
[Android Head-Units] phuongpham:
Hi

Could I please have a copy of the v2.9.5?

I have the same and working device.

Please let me know if you need some files from my device to compare etc.
[Android Head-Units] dragoescu:
V2.95: https://www.dropbox.com/s/t3tn4f6lq75b1er/V2.9.5_20150413 SOFTWARE.rar?dl=0
[Android Head-Units] logicMASS:
So is your touch screen working correctly now?
[Android Head-Units] phuongpham:
Hi

I have this unit with Android 4.4.4 installed.

It's someway to root the device?
[Android Head-Units] qbattersby:
My touchscreen is still not working correctly - do you have any advice?
[Android Head-Units] gustavocwb:
GPS Problems

Hi guys, I´m new here.

I bought some time ago on Aliexpress a AN-21 U unit.

I never had any trouble with the software version that came with it, but in about two months ago I was having an error like

"com.google.process.gapps has stopped"

every time the I turn the unit on.

So I did a reset on the unit, but in doing that the unit was stuck on the boot logo. I searched in the forum and found that if I install the 2.6.60 firmware could solve my problem, and it did! After that, I install the 4.2.2 android version but after installing it, an error message appears, "UI Unauthorized, please contact the supplier". After this, I did another search in the forum and I found that if I upgrade 2.8.8 this error could disappear, and another time it worked!

My problem now: The GPS can lock any satellite. When I open the GPS Test App the GPS is ON, but can lock on any satellite. I am really frustrated, I was looking here to see if I can solve my problem but every thing I did couldn´t fix the GPS.

Btw, I didn´t install the 2.6.68 system version.

Can anyone help me about this? Thanks in advance and sorry for my english.

My system now is this:

- Android Version: 4.2.2

- MCU Version: 4.2.15-1-10-2101

- System Version: 2.8.8

- DVD Version: 2.13.11-hd860mc
[Android Head-Units] logicMASS:
Nope. I'm still in the same boat. I'm willing to sacrifice the unit and try some MCU updates.

Going to replace it if I can't get this fixed soon. To much of a hassle!
[Android Head-Units] dragoescu:
Yes, I have no problems with the unit.

---------- Post added at 09:09 AM ---------- Previous post was at 09:08 AM ----------

AN-21U does not have android 4.4.4. Maybe you have the next version (different hardware) and for that there is a separate thread.

---------- Post added at 09:12 AM ---------- Previous post was at 09:09 AM ----------

Check in system/location if you have GPS set to internal or external adapter.

Did you excluded the hardware fault (GPS antenna maybe)?
[Android Head-Units] phuongpham:
Thanks for the information.

Do you know which thread is for my unit?
[Android Head-Units] dragoescu:
you have to search. it has been discussed here, I think you can find the link few pages back.
[Android Head-Units] lorobest:
No one has able to install CWM or another similar recovery?

Inviato dal mio SGH-I337M utilizzando Tapatalk
[Android Head-Units] dragoescu:
there is no recovery partition for this unit.
[Android Head-Units] lorobest:
So, nothing to do? Nobody can create a porting for this? Seems a poor Android without recovery, and without any possibility to upgrade on a superior android release.

Inviato dal mio SGH-I337M utilizzando Tapatalk
[Android Head-Units] gustavocwb:
In my system/location doesn't appear where I can set the GPS for internal or external adapter, only the google configuration for localizations. I did not exclude a hardware fault yet.

Can I try to install the version 2.9.5 on Yandex or It will be to risky?

Thanks
[Android Head-Units] dragoescu:
Redmod is based on v2.95 and also hase some fix for gps connection. You can try with redmod 2.6. Avoid mcu update.
[Android Head-Units] dragoescu:
Hello,

Did anyone connected a subwoofer to this unit? I this picture http://callcut.eu.org/uploads/2013-10-28 02.37.49.jpg I plan to use line out front L+R for subwoofer audio input.

Does anyone knows if this 2 channels (actually are 4 since we have line out rear L+R) are pre-amp audio signal and if it is safe to connect to subwoofer?
[Android Head-Units] striker1211:
Try using GPS status in the play store to check your hardware. If it says "GPS is disabled" it is most likely software. If it just searches forever and ever it may be hardware. Inside that app download aGPS data as well to see if that helps you get a first lock. The GPS on my AN-21 is flakey sometimes too but I notice it is less flakey with GPS Status running in the background, if that helps. Also, check your GPS antenna cord that screws into the back of the unit. It might have vibrated loose.

They are line level so you will be fine. If you are concerned just turn the input gain all the way down on your amp and work your way up.
[Android Head-Units] Edgaras7777:
Hello, maybe you know whats is the problem? When i start engine, my dvd unit is noise from speeker?
[Android Head-Units] lipe1982:
Fail boot

Hello everyone. I have a problem after updating the radio and enter the new boot image, the radio starts with the logo of the make of the car and then gets the black display (I think it will issue the boot animation that introduced because the screen reacts to Touch). My question is: how can I enter the firmware update mode without using the screen (as the screen turns black shortly after start)? The radio is the image (not have home button) https://www.youtube.com/watch?v=tV9ymmUejso
[Android Head-Units] kolang-kaling:
hello there. i'm using this type: ali*express.com/item/Quad-Core-7-INCH-1024-600-2-Din-Universal-Android-4-4-Car-Audio-Stereo-Radio/32573571546.html

my HU also using com.tw.music_a41e.apk as music player. the problem is, the app cant scan music files. i was try put them in internal memory(16GB) in "Music" & "iNand" folder, but has no effect.

FYI i have 1284 music files and 311 subfolder.

anyone have a trick to solve this? please help me..
[Android Head-Units] dragoescu:
Hello,

If you copy the music to internal memory or to a sdcard and insert card, you have to reboot the unit while the sdcard in inserted. This way upon boot the Android will scan media and will update the music catalog. Then the music player can see the files.
[Android Head-Units] kolang-kaling:
soo thats explain everything. many thanks to you :D

the app scan files in iNand folder only , and just scan one folder for one playlist, so i cant shuffle all my 1284 music files because its separated to 311 subfolder :(

i rename every folder with artist name, so if i choose artist X's folder (it have 5 songs) and click shuffle play, it just shuffle up to 5 song only instead 1284 song :(

is there a trick that can shuffle all the song in all folder?

or i must put all music files to one folder only?
[Android Head-Units] perieanu.ovidiu:
poweramp
[Android Head-Units] dragoescu:
Hello,

In my case I have one folder called "Music" on sdcard. Inside that folder I have multiple folders with mp3 files (Rap, driving, chill, Adrenaline, etc).

So when I go in Music app, browse and select sdcard I see the subfolders (Rap, driving, chill, Adrenaline, etc). This way I use the subfolders AS "playlists".

If you want a more advanced plater use PowerAmp. I think it will solve your problem.
[Android Head-Units] kolang-kaling:
i see.. but, can you shuffle the music from "rap" to "chill" or vice versa? or it just shuffle inside "rap" only?

btw, is it safe to replace music app & EQ app with poweramp permanently(install poweramp as a system app)?
[Android Head-Units] dragoescu:
I use folders as playlists. This means one folder one playlist. So no shuffle between "playlists".

First try poweramp. If you are ok with it, move music player apk to sdcard, move poweramp apk to /system/app, do a dalvik cache cleaner reboot and test. If problems move back music player apk from sdcard to system/app
[Android Head-Units] mutunas:
hello to everyone in this great thread.

I have a unit like this in my car, and trying to find out how to display the external temp in the unit.

there are some apps in the Russian forum (http://4pda.ru/forum/index.php?showtopic=641709&st=540#entry39080606), but I can't download it, as I can't register to the site (I don't speak Russian and google translate can't help me in registration process).

does any one have a solution to that problem?

is there any .apk which displays the external temp?
[Android Head-Units] Tommy1995:
rear video

I have rear entertainment in my car. Anything I do up front on the android headunit shows on the rear screen. Is there a way to keep the dvd thst is in the headunit playing on the rear screen while I change sources upfront? Kid wants to watch his dvd and I want to listen to the raido. Any help. Thanks!
[Android Head-Units] wanxu:
By the way, how do you do a dalvik cache clean? And why do you want Poweramp to be a system app? Is there any advantage? Are they faster or something?

---------- Post added at 12:09 PM ---------- Previous post was at 12:06 PM ----------

Man, I screwed a unit by using a faulty boot image... I never tried but there's a way to update the firmware like the first page says:
[Android Head-Units] tklingr:
Hi,

Is there any way to upgrade to android 5.0? I've seen on the web that Pumpkin and joying are explaining how to upgrade to 5.0.

Has anyone tried it? Are there any new issues?
[Android Head-Units] dragoescu:
nope
[Android Head-Units] bettuccio:
Mutunas hello, I have the application installed and does not work the same. I did not understand what should I do to make up the temperature in the center of the status bar. For months I was looking for "temperatures monitor.apk" and now that I was able to download, it does not work, always presented as 0 and 1 degrees centigradi.Ho afraid my CMU does not support this. I still try to help.

---------- Post added at 04:04 AM ---------- Previous post was at 03:54 AM ----------

I have taken from the Russian website, if you want to try this application, you can send it. Write your email sent to you in private. ok?
[Android Head-Units] bettuccio:
let me know if you work good. Bye
[Android Head-Units] dragoescu:
Hello,

My AN-21 unit has a subwoofer output (RCA one line). I tested (on a home audio system) and it will output ony low freq on line level. My under the seat subwoofer (not installed yet) has 2 input RCA (line level). It is ok if I combine those 2 inputs in one and connect to subwoofer out? Did anyone tryied this setup?
[Android Head-Units] oddbehreif:
I set it up like that and everything works fine. Go for it :)
[Android Head-Units] dragoescu:
Thanks
[Android Head-Units] bettuccio:
hello, I have a problem with the USB port .I have a wireless mouse connected simultaneously to a Flash Drive dongle (for music) and I found that fitted together does not work the mouse. If only the wireless receiver Attack this works. Just dongle Attack Flash Drive no longer works! I tried to change 4/5 USB hub adapters but without winning. If I do the test on 2 smartphone works well because here no? You have a solution?
[Android Head-Units] dragoescu:
try with a "non wireless mouse" and flash drive. I think the when using a wireless mouse it draws more power for "radio part of the mouse".

If is running with usb cord mouse and flash drive then you will need a powered usb hub. This way you can supply power for the mouse receiver and flash drive also. you can find 5V power usb hub at stores.
[Android Head-Units] bettuccio:
So is the only solution? It's a power problem? I thought too that this was a solution. Now that you told me you too are sure of this. The only problem is where to plug it in the car. I do not want wires around. How can I do ?
[Android Head-Units] dragoescu:
12v usb hub?
[Android Head-Units] bettuccio:
I have a usb plug in the car's dashboard, but it does not work most of what I put Android. Then I have a current European socket in the armrest and I could use that to power the USB port. The problem is that doing so would the wire out.
[Android Head-Units] dragoescu:
:)) true!
[Android Head-Units] bettuccio:
I found this to power the USB port. How do you see needs a power outlet. The wires where I put them?
[Android Head-Units] dragoescu:
Cut the wire connect + on + on loghter and - on - lighter socket. Do you have allways active 12V on your lighter ?
[Android Head-Units] bettuccio:
Yes good. I thought myself to this. A small problem is that the cigarette lighter is in the center of the dashboard and car radio usb output is in the glove compartment

---------- Post added at 06:54 PM ---------- Previous post was at 06:52 PM ----------

I should make a hole in the drawer but always remains the thread out
[Android Head-Units] bettuccio:
alternatively I tried to connect a bluetooth mini pad (v3.0) bought on aliexpress but unfortunately does not fit. I made a Reset and factory data without winning! I do not understand why!
[Android Head-Units] bettuccio:
No pair !!!
[Android Head-Units] perieanu.ovidiu:
it supports just A2DP bluetooth protocol,whick means audio streaming,as far as I know.so other goodies via bluetooth,no way
[Android Head-Units] bettuccio:
Hi , you sure about this? Have you tried to pair other devices other than a smartphone? If it is true, does not work either a bluetooth mouse, is that it?
[Android Head-Units] perieanu.ovidiu:
yes,an bluetooth obd2 scanner,it works.but it depends how the device works,in theory you can 'hide' any type of data inside a2dp,I mean anything if you do it wright.all depends in fact on the protocols supported by the 2 devices on the chain.I mean some fabricants can do smart things over this,if they want to.like the HID windows driver,you can transport anything if the speed suits your application.I'll check again and give you a more precise answer.but for the time been,assume only a2dp is good to go
[Android Head-Units] bettuccio:
If I connect a bluetooth mouse works? Sorry I did not understand this passage. I struggle to understand everything.
[Android Head-Units] perieanu.ovidiu:
so,apparently it transport generic data also (I mean the BC6,but BC5 also can do it),so ANYTHING can be done in respect to the speed of the comm device.in fact,al reposability goes to the linux 'driver' and the app.the pairing issue should be transparent to this,maybe dragoescu knows better,he's closer to android developement.normally it should pair without any issue.after pairing,is the app+driver who must work together.I'm not sure I'm very clear...anyway,good luck in pairing the thing :)
[Android Head-Units] bettuccio:
I tried it with a bluetooth mouse and it did not work. I hope someone is able to run this limit of our car stereo.! ?

---------- Post added at 07:52 PM ---------- Previous post was at 07:47 PM ----------

If anyone knows how to fix I'm ready to listen. Maybe Dragoescu and company can know more .Thanks to Perieanu .for your answers. ; )
[Android Head-Units] ragarok:
I've had this unit sitting on a shelf for a long time and I've just recently started using it.

Long story short, I upgraded it to 2.7.29 that's linked in the OP , upgrade went well but left me with a red banner 'ui unauthorized'

Downloaded 2.8.8 TT permroot. Upgrade fails

Downloaded latest redmod. Upgrade fails.

Suggestions?

Reading about the pitfalls of MCU I've left it as is with version 4.3.4-7-10-6501

Edit:

There link to the firmware version 2.8.6 in the wiki page ( OP post) is dead. Looking for an alternate link.

Edit2:

Not really sure why but redmod 0.2.7 won't install on my unit but 0.2.62 was installed without a hitch, red bar is gone and things look to be working fine. I'll just leave it at that :)
[Android Head-Units] gustavocwb:
Hi guys. So, I tried a different GPS antenna and still I´m having problems with the GPS. It just don't lock to any satellite!

I really don´t know what can be. I didn't install the 2.6.68 system version, I am on the 2.9.5 version that can be found on Yandex site.

Everything works, except the GPS.

The last thing I think I´ll do is a full format and reinstall the 2.9.5 version again. I don´t know if it will work, but I don´t have more options, I think.

Thanks
[Android Head-Units] dragoescu:
[MENTION=1314458]gustavocwb[/MENTION]: If you do a full format remember to remove CDROM connections before.

[MENTION=3124465]ragarok[/MENTION]: use a terminal emulator and provide the output of the command "df -h" and "mount"
[Android Head-Units] dida43:
redmod on mcu

Hi all,

I've been searching this topic for some time, but cannot find clear answer or instructions.

I think I have AN-21 U, it is bought from pupug seller on aliexpress. Please check attached image.

It has MCU 4.3.10-7-10-450101

I downloaded RedMod 0.2.71 and my question is:

is it enough to update android to RedMod or I also need to update MCU?

There are 2 files in redmod zip, I suppose large file is redmod and small is mcu.

Please, I don' know where else to find this info?

Thank you in advance.

imgur*com/gp1M0Tr