Develop Bugs

[Q] Official Galaxy S II Car Dock / Holder USB to Car Stereo problem

Hi all ,
I've just bought the official Samsung car holder / dock.
i1.expansys.com/img/b/217880/samsung-car-holder-for-galaxy-s-ii.jpg
It's well made and a perfect fit for the phone (without case) but I'm having problems connecting to my car stereo.
After a bit off fiddling with settings (turning on USB debugging) I can connect my GalaxyS2 directly to my Pioneer DEH-2300UB headunit with the USB cable.
GalaxyS2 then detects that it's connected by USB. Pulling down the notification bar and clicking the USB icon turns it on. It is then detected by the headunit like it would any USB mass storage device and plays MP3 files.
But if I connect the car holder to the headunit with the USB cable, then clip my GalaxyS2 into the car holder, the phone goes into car dock mode.
I can get out of car dock mode by pulling down the notifications bar and turning it off but I can't get the the phone into USB mass storage mode.
Any idea how I can get my GalaxyS2 to detect the USB connection and not the car dock?

how about turning USB debuggin on then connect into the dock and then turning it off?

Thanks, but nope that didnt work.

Can you post a picture or link to your car dock?

I'm a newb so can't post direct pics or links so you'll have to cut and paste the link below.
h t t p ://i1.expansys.com/img/b/217880/samsung-car-holder-for-galaxy-s-ii.jpg

Is there any setting you can adjust on your car stereo?

No settings on stereo. its an issue with the phone
Sent from my GT-I9100 using XDA App

Have you tried changing it from car dock to say sound station/dock?

You can turn the car dock off by pulling down the notification bar a clicking the car dock icon. Not sure if it will let the phone go into mass storge mode after that though.

Nope tried that as well

Hmm is it able to detect the phone or is it only the problem relating to playback?

The head unit detects that something has been connected and tries to scan it but because the GalaxyS2 is not in mass storage mode the headunit displays an error.

Maybe theres a 3rd party app that can change it or maybe we can trick the phone into detecting connection into something else first and then putting it into the car dock. thus it might not go into the car dock mode

Been looking around the market. There are a few apps but "NoDock" seems to be the closest to what I'm looking for.
market.android.com/details?id=com.nothize.nodock
There is a trial version. I'll re-root my phone and give it a try.

Cool. Let us know after you give it a try
BTW have you tried plugging in a female USB port and then connecting the male end to your head unit? Or maybe you could try an aux input after docking it.

I think what is happening is that the USB connection is just supplying power to the car holder.
There is an AUX-out on the car holder and an AUX-in on the headunit. I'll see if I can find an AUX cable and try it. Connected that way I think I'll be able to control the MP3s from the phone instead of the headunit.

Maybe this is a bit off-topic but can you tell me if you notice any interference noise through the dock's audio line out when the phone is not playing anything? This is an annoying issue in the I9000 with its official car dock.
Sent from my GT-I9000 using XDA App

What type of interference? I get the usual RF interference just the same as if you put the phone next to a speaker when in GPRS mode. You'd get that with all phones IMO.

drillyourownhole said:
I think what is happening is that the USB connection is just supplying power to the car holder.
There is an AUX-out on the car holder and an AUX-in on the headunit. I'll see if I can find an AUX cable and try it. Connected that way I think I'll be able to control the MP3s from the phone instead of the headunit.
Click to expand...
Click to collapse
lol. thats it then I guess. if there is already an aux out, it must be that Did they include a 3.5mm cable?

rob_h said:
What type of interference? I get the usual RF interference just the same as if you put the phone next to a speaker when in GPRS mode. You'd get that with all phones IMO.
Click to expand...
Click to collapse
I didn't mean RF interference, that will depend on the proper shielding your audio system has (I think). The noise I'm talking about is different, sometimes it's random noise and some other times it is a buzzing that goes high and low depending on the acceleration/deceleration of the car engine... I know... weird. This does NOT happen if I connect the phone directly through its 3.5 jack and not the dock's.
Maybe they sorted it out in the I9100 car dock.
Sent from my GT-I9000 using XDA App

USB Audio out?

So does our SGSII line up have this feature? the only thing i can find close to this is a mod. http://forum.xda-developers.com/showthread.php?t=1321491
I see in the settings there's a Dock setting but Ive also read that we don't have this feature.. Im abit confused. Could someone clear this up for me?

I don't think so, I sure wish it did. That is one of the things I liked about my iPhone was that in my 2011 Chevy Truck I could plug my phone into the USB port and listen to anything playing i.e. Pandora, iTunes, etc. I tried this with my EPGT and just got an error on my truck stereo.

I looked into this a lil while back...the only way I read some peoples' phones outputting sound to their stereos was by actually mounting the device (like with a computer). Unfortunately the mounting option doesn't pop up when I plug it into my pioneer avh-p5200bt...so I just have to use my iPod...sorry
Only option is through aux as far as I can see. I hope the sga3 can solve this somehow lol
Sent from my Transformer Prime TF201 using Tapatalk

prasket said:
I don't think so, I sure wish it did. That is one of the things I liked about my iPhone was that in my 2011 Chevy Truck I could plug my phone into the USB port and listen to anything playing i.e. Pandora, iTunes, etc. I tried this with my EPGT and just got an error on my truck stereo.
Click to expand...
Click to collapse
Did you put it in disk mode and use it like a thumb drive?
In my camaro, if i plug my phone into the USB port and select disk drive, it uses it just like a thumb drive.

ewynn9 said:
Did you put it in disk mode and use it like a thumb drive?
In my camaro, if i plug my phone into the USB port and select disk drive, it uses it just like a thumb drive.
Click to expand...
Click to collapse
I did not, let me try that next time I am out and about. I also thought about turning on the audio through the dock, maybe that will do something also. Thanks for the reply about it.

(Q)USB audio Out is it possible?

I recently bought a new stereo for my car that has USB,Aux inputs.. i can use the aux but the sound is not as good as the USB. i can use the USB however i will be limited to the stereo controls and it,s pain in the a$$.
can i play music over USB cable so i will have full control of what i wanna play. ?
to make it easy when u mount your sd card on your computer you cant access their content from the phone same think with the stereo
it,s a long shot but you never know there might be a mod that i messed
Long live T989

Hmmm i don't think you can, you're stereo is probably "iPhone ready" where you can use the iPhone physically i think... But with Androids it'll see it as a storage device.
If i were you... Go Bluetooth, i find the clarity better than aux too. That's if you can return the stereo and invest a little more for Bluetooth.
Sent from my SGH-T989 using xda premium

I don't know if you can use a USB cord or not but I know you can use an auxiliary cable. That's what I do
Sent from my SGH-T989 using XDA

You can, it depends on what your system can handle.
At work I plug into Home theaters via USB
Even though their crappy for audio fidelity, samsungs stuff is the most compatible.
But flac wont be found on any HTIB on screen menu I have tested
Sent from my SGH-T989 using xda premium

It may benefit you to know that your phone has preset volumes when you hook up different devices. I'd say try to use the AUX cable if you haven't invested in a Bluetooth device (which is the better option). Just turn the volume up in the media settings and you should be good to go.

Lt.Tealc said:
I recently bought a new stereo for my car that has USB,Aux inputs.. i can use the aux but the sound is not as good as the USB. i can use the USB however i will be limited to the stereo controls and it,s pain in the a$$.
can i play music over USB cable so i will have full control of what i wanna play. ?
to make it easy when u mount your sd card on your computer you cant access their content from the phone same think with the stereo
it,s a long shot but you never know there might be a mod that i messed
Long live T989
Click to expand...
Click to collapse
it works u have to plug the usb into the radio then plug ur phone in and turn usb storage mode then it will connect not the same as the iphone but it works

USB audio works on my Allwinner A10 tablet witn "Unofficial CyanogenMod 9 for many AllWinner A10 tablets" firmware from Christian Troy

[Q] Using note 2 with car Stereo. No Bluetooth.

Alright I've got an aftermarket stereo with support for UMS mode but not MTP. I know I can use S3 Easy UMS
but it has turned out inconsistent and when I disconnect it I have to go back into settings and remount it instead of
mounting back through the app. It's very troublesome.
Is there a way I could write two partitions on my external card and keep one constantly in UMS mode and then the
other for phone use? Or better yet is there a rom or better app that allows UMS? I'm on an i317 running cleanrom.

I have Alpine in my truck. ..I have same issues,. What I do is cycle my source button back to bluetooth....it connects onece I do this idk if this info will help
●○●○takin a crap as we speak●○●○

Oops I forgot to mention my stereo doesn't have bluetooth. I'm trying to get it setup up to pulg into the usb easily.
I wan't to control it through my stereo. Just plug and forget about the phone.

[Q] Car Stereo Unrecognized By S4 When Connecting Via USB

O-for-two...<grumble-grumble> :crying:
Upgraded my factory cassette car stereo to a new one with usb port (no bluetooth), thinking I could both stream the phone's audio and charge the battery via usb.
Well, the battery's levels actually decrease when plugged in, and more to the point, the phone isn't recognized in usb mode in the stereo and quickly goes to radio mode and the phone displays the following message (please see attached screenshot)...
...my phone is stock, not rooted. Stereo is not bluetooth-enabled, and I would prefer to stream via usb than the aux port.
-> Can anyone advise any tweaks or apps that would enable the phone's streaming audio to be played via the stereo's USB mode?
Thanks in advance!

What kind of car? I used to have problems in my Saab.
Sent from my SGH-M919 using Tapatalk

mrbmg said:
What kind of car? I used to have problems in my Saab.
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
Thanks for the reply.
It's a 4Runner.
Hoping to focus here on how to get the devices to recognize one another...

That's weird. Maybe a driver issue with the stereo? Does it have a hard drive? Never used stereo with usb port. I think my wife's suv has one.
Sent from my SGH-M919 using Tapatalk
---------- Post added at 09:43 PM ---------- Previous post was at 09:39 PM ----------
What stereo is it?
Sent from my SGH-M919 using Tapatalk

mrbmg said:
That's weird. Maybe a driver issue with the stereo? Does it have a hard drive? Never used stereo with usb port. I think my wife's suv has one.
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
The stereo is very basic, no hd.
Anyone know of any tweaks/downloads I can make to the phone in order to get the audio properly streamed via usb?

4umexdeeay said:
The stereo is very basic, no hd.
Anyone know of any tweaks/downloads I can make to the phone in order to get the audio properly streamed via usb?
Click to expand...
Click to collapse
I have a similiar radio. No bluetooth but a usb on the front and an audio input on the front. As I understand it the stereo itself can't access the phone this way. It doesn't have drivers to recognize the Samsung phone. Think about it. you plug your phone into your computer by usb but you have to download and install drivers for the two to work together. Mine from the looks of it has Iphone drivers built in but nothing for android. You can probably plug a thumb drive in loaded with music and it'll play. What I do is use a stereo cable from headphone output on the phone to the audio in on the stereo. If I need to charge it I have the standard car charger for that.

4umexdeeay said:
Upgraded my factory cassette car stereo to a new one with usb port (no bluetooth), thinking I could both stream the phone's audio and charge the battery via usb.
Well, the battery's levels actually decrease when plugged in, and more to the point, the phone isn't recognized in usb mode in the stereo and quickly goes to radio mode and the phone displays the following message (please see attached screenshot)... [/B]
Click to expand...
Click to collapse
Youre doing it wrong
The reason the battery is decreasing is the amount of current drawn from the device. Either the radio is not strong enough to supply the right current or the phone is recognizing it as a computer and limiting the draw to 500ma. My rough estimates show that the phone uses closer to 750ma while in use just to run. You can verify how much power it is drawing with this simple application https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent.free
You could try to install a kernel that allows you to override the amount of power drawn from the port. I was the first to request the feature and Ktoonsez was nice enough to implement it into his kernel. Now you can set the AC and Computer USB draw to any amount you like.
Secondly, why did you think you could play audio through USB in the first place? I guess it would be possible if the radio supports MTP but then the phone would be acting more like a USB stick and you would have to choose the files manually on the radio itself.
If you really don't want to use an Aux cable then I suggest buying a bluetooth dongle and connecting it to the rear AUX inputs on the radio. They are relatively cheap and you can install it inside the dash never to be seen again.

braschlosan said:
Youre doing it wrong
The reason the battery is decreasing is the amount of current drawn from the device. Either the radio is not strong enough to supply the right current or the phone is recognizing it as a computer and limiting the draw to 500ma. My rough estimates show that the phone uses closer to 750ma while in use just to run. You can verify how much power it is drawing with this simple application https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent.free
You could try to install a kernel that allows you to override the amount of power drawn from the port. I was the first to request the feature and Ktoonsez was nice enough to implement it into his kernel. Now you can set the AC and Computer USB draw to any amount you like.
Secondly, why did you think you could play audio through USB in the first place? I guess it would be possible if the radio supports MTP but then the phone would be acting more like a USB stick and you would have to choose the files manually on the radio itself.
If you really don't want to use an Aux cable then I suggest buying a bluetooth dongle and connecting it to the rear AUX inputs on the radio. They are relatively cheap and you can install it inside the dash never to be seen again.
Click to expand...
Click to collapse
This is all really helpful info, thanks
Yeah, not sure why I thought I could stream via usb either, must've been mixing up the functions of that and the aux cable.
-> So I'm familiar with a bluetooth dongle that connects via usb (...think that would work properly in a car stereo too?) - but you're recommending a dongle that connects internally? Know where I'd find that for sale?

1st, my assumption is you're rooted...?
If no=Boohoo... Root or buy stereo with Bluetooth.
If yes= install this app... https://play.google.com/store/apps/details?id=com.mohammadag.samsungusbmassstorageenabler
Open it, grant it root privileges, click the "mass usb" (I think its called), and profit!
*Music must be on external card.
<-- my thank you is over there

Do you have an auxillary input option on the stereo? 3.5mm jack...
The advantage is that it's guarenteed to work.
The disadvantage is that you can't control the song selection from the stereo. You have to do it from the phone.
Also, could it be there you store the music? If it's on an external SD card I can see where that would fail. Maybe if it was on the internal memory? Remember the car stereo probably isn't real bright. If it doesn't find what it's looking for where it expects to find it, it won't keep looking.
You might have to have it stored in a specificly named directory on the phone too.

4umexdeeay said:
So I'm familiar with a bluetooth dongle that connects via usb (...think that would work properly in a car stereo too?) - but you're recommending a dongle that connects internally? Know where I'd find that for sale?
Click to expand...
Click to collapse
"Internally" meaning it goes inside the dash, behind the radio. Its just a bluetooth receiver with an audio output (either a headphone jack or RCA cables)
If you want listen to music over "USB" you can get certain touch screen radios that will mirror your phones display

4umexdeeay said:
O-for-two...<grumble-grumble> :crying:
Upgraded my factory cassette car stereo to a new one with usb port (no bluetooth), thinking I could both stream the phone's audio and charge the battery via usb.
Well, the battery's levels actually decrease when plugged in, and more to the point, the phone isn't recognized in usb mode in the stereo and quickly goes to radio mode and the phone displays the following message (please see attached screenshot)...
...my phone is stock, not rooted. Stereo is not bluetooth-enabled, and I would prefer to stream via usb than the aux port.
On the bench after testing all the functions and ready to install....
[/URL[/IMG]
-> Can anyone advise any tweaks or apps that would enable the phone's streaming audio to be played via the stereo's USB mode?
Thanks in advance!
Click to expand...
Click to collapse
There is a mod that allows your phone to emulate a usb storage device that would allow you to play music stored on the phone through the stereo you installed, however there would be no controlling any of the sounds, etc via the phone. All the controlling has to come from the stereo itself. Volume, tone, selection, etc. You also need to check the format that the stereo "expects" to see in order for it to be able to function.... Such as Folder size, (files within the folder - how many) How deep the folders are allowed to be set as like in subfolders, etc. What the storage media format is able to be accessed, etc. It gets a little technical and the results are a bit disappointing in the end...
The best I can recommend is a display screen unit that supports using the phone in the USB input. I just installed a Pioneer AVH-X4600BT that works with my (GS4 rooted 4.2.2 Stock ) in my Wife's Subaru Outback. We can plug the phone's USB cable into the stereo (via a Mirrorlink add-on) and run the PHONE using the touch screen of the stereo. You'd be able to run Pandora, answer/make calls, answer/create e-mail and Texting, listen to the music on the phone, watch video that is stored on the phone or DVD's, and most important, NAVIGATION on a 7 inch screen!. All of that though, is dependent on the phone you have. As of yet, the Mirrorlink supports the iPhone, GS3, GS5, and with a hacked app in the phone, it also supports GS4. There is a free app on the market that is called Drivelink which interfaces your phone and the stereo.
You might want to research other stereo devices that have the Mirrorlink application support. I believe Sony has some, but I didn't go past the Pioneer unit. Bottom line, BE SURE TO DO THOROUGH INVESTIGATION ON WHAT YOU WANT TO DO AND THE CONNECTABILITY OF YOUR DEVICES. I know you just bought the unit recently so you just might be having to live with your setup for a while. That's o.k. though, next time you purchase something like that, you will be armed to the gills with knowledge and get something you'll really enjoy.
On my test bench after testing, and was ready to be installed....
Good Luck, and Aloha!

4umexdeeay said:
O-for-two...<grumble-grumble> :crying:
Upgraded my factory cassette car stereo to a new one with usb port (no bluetooth), thinking I could both stream the phone's audio and charge the battery via usb.
Well, the battery's levels actually decrease when plugged in, and more to the point, the phone isn't recognized in usb mode in the stereo and quickly goes to radio mode and the phone displays the following message (please see attached screenshot)...
...my phone is stock, not rooted. Stereo is not bluetooth-enabled, and I would prefer to stream via usb than the aux port.
-> Can anyone advise any tweaks or apps that would enable the phone's streaming audio to be played via the stereo's USB mode?
Thanks in advance!
Click to expand...
Click to collapse
It's doing that because your phone uses MTP as the Media Transfer Protocol. Basically, it kind of mounts like an MP3 player or camera and the new DIN you installed doesn't know what to do with it. The real trick is to get your phone into UMS, USB Mass Storage mode. There's a UMS app in the play store, BUT you have to be rooted to use it. It basically mounts your phone like a regular old thumb drive. Do that and your new DIN will see it no problem. Only thing is, like a USB drive you'll have to navigate into your folders to play your music. This was what I threw in my car and it's been awesome!
http://www.amazon.com/VicTsing-Blue...=UTF8&qid=1397676105&sr=1-1&keywords=victsing
---------- Post added at 04:12 PM ---------- Previous post was at 03:22 PM ----------
4umexdeeay said:
This is all really helpful info, thanks
Yeah, not sure why I thought I could stream via usb either, must've been mixing up the functions of that and the aux cable.
-> So I'm familiar with a bluetooth dongle that connects via usb (...think that would work properly in a car stereo too?) - but you're recommending a dongle that connects internally? Know where I'd find that for sale?
Click to expand...
Click to collapse
I bet I know why you thought you could play audio through USB. It's because Apple products can do it. One of the things that drives me nuts is that most cars with USB ports have audio playback support for Apple devices because of Apple's dock interface that let's the docking component control and navigate the audio. Unfortunately (and it drives me crazy) Google hasn't created a similar interface for Android so there are no Android Docks. Android devices like the S4 in your car rely on on AUX to send audio. It really sucks and Google has committed to addressing it this year in the car but I don't know if they're fixing the underlying problem of a uniform audio interface in android; meaning one where you plug in a dock and it recognizes your phone and how to access your music and playlists. Again, Take a look at this if you need a quick fix. I know you were hoping your new stereo would do it, but you could easily hide this:
http://www.amazon.com/VicTsing-Blue...=UTF8&qid=1397676105&sr=1-1&keywords=victsing

abovenbeyond said:
1st, my assumption is you're rooted...?
If no=Boohoo... Root or buy stereo with Bluetooth.
If yes= install this app... https://play.google.com/store/apps/details?id=com.mohammadag.samsungusbmassstorageenabler
Open it, grant it root privileges, click the "mass usb" (I think its called), and profit!
*Music must be on external card.
<-- my thank you is over there
Click to expand...
Click to collapse
I don't understand, am I missing the post where u said u did this and it didn't work?
This is what u need to do... period. If this app won't work with your rom, find an app or place in the settings to enable "mass storage". The above linked app works for me and many others.