Whenever I plug in the phone to my computer via USB, it loads it as two separate drive letters. This is fine and good for the PC side of things.
The problem is that I want to be able to use the phone's external SD as a mass storage device that attaches to a new car's USB port. The car always throws back an "unsupported" error, and I'm betting it has everything to do with the fact that the phone tries to mount the 2 cards. The car just doesn't know how to handle that information.
So, does anyone know of a tweak or setting that would force the phone to only mount one or the other, preferably the external?
I've removed the external SD card and plugged the phone in to the car. It doesn't error out now, but I didn't give it ample time to find music hidden in the internal SD.
That being the case, I still would like to know if there is a way to disable USB mass storage for one or the other without having to shift things around all the time. There's a reason why all of my music is on the external SD--it's a 16GB card and I have a ton of music.
The only way I can think of is by mounting it in clockwork recovery console. That would give you access to the music...but you'd lose the functionality of the phone during that time, so doesn't seem like it would be a viable route for you to take...but I suppose if you wanted to do bug testing to see if your external WOULD mount to your cars usb, that's one way to check that out.
Hope this helps.
I'll give that a try this afternoon. You're right, though, it does defeat the purpose--I'd really like a functioning phone while I drive. I'm sure there's a way to adjust this, I just don't know enough about the inner workings to make it happen.
Hello devitec,
I have the same Problem in a BMW with a Samsung Galaxy SII phone. I have no satisfying solution but I can use below workaround.
The BMW cannot mount both drives, but he chooses randomly one of the two. Because there are no music-files on the internal sd, it gives me an errormessage. On every second try i get the external sd which is browsable like a usb-stick. The album- and artist-informations are not parsed for the BMW-filterfunctions, so i can only choose by directory.
I hope this workaround will also work in your car.
max01001111
P.S.: The Samsung galaxy SII has to be in debug mode to mount without kies-support.
what if you guys try to unmount the internal sd before you connect ur phone to ur car?
Sent from my LG-P999 using XDA App
Related
I'm a Nexus One owner, previously G1/MyTouch3G also, so I'm no n00b.
With all Androids, if you have a microSD card, you just plug in the USB and you can mount the microSD card as a drive and copy stuff to it. Which is necessary since we have stupid small ass internal storage. Also it's where we copy pictures/mp3s to it.
So now, with the Samsung Galaxy S series of phones with 16 GIGS of internal storage, how do we ACCESS this storage from the PC so we can copy pictures/mp3s to the internal storage? Is there a way to MOUNT the internal storage?
I haven't read a SINGLE thing about this.
It would REALLY suck if we had to manually do it: Mount microSD, copy stuff to it, unmount, use a file explorer on the phone itself and manually move the files into internal storage.
Yeah there's probably root apps and such that you can ssh in, or use adb to transfer, but that's NOT ideal.
Would be nice is the internal storage auto mounts when mounting microSD like Garmin GPS systems. Garmin GPS systems have SD card slot, when you plug it in, you can see the INTERNAL Garmin memory as well as whatever is on the SD card. (You'll see 2 removable storage devices mounting in Windows).
I think when it's plugged in, the normal notice pops up in the notification bar. But instead of just asking you to mount, it asks if you want to mount internal or the sd card.
nxt said:
I'm a Nexus One owner, previously G1/MyTouch3G also, so I'm no n00b.
With all Androids, if you have a microSD card, you just plug in the USB and you can mount the microSD card as a drive and copy stuff to it. Which is necessary since we have stupid small ass internal storage. Also it's where we copy pictures/mp3s to it.
So now, with the Samsung Galaxy S series of phones with 16 GIGS of internal storage, how do we ACCESS this storage from the PC so we can copy pictures/mp3s to the internal storage? Is there a way to MOUNT the internal storage?
I haven't read a SINGLE thing about this.
It would REALLY suck if we had to manually do it: Mount microSD, copy stuff to it, unmount, use a file explorer on the phone itself and manually move the files into internal storage.
Yeah there's probably root apps and such that you can ssh in, or use adb to transfer, but that's NOT ideal.
Would be nice is the internal storage auto mounts when mounting microSD like Garmin GPS systems. Garmin GPS systems have SD card slot, when you plug it in, you can see the INTERNAL Garmin memory as well as whatever is on the SD card. (You'll see 2 removable storage devices mounting in Windows).
Click to expand...
Click to collapse
No luck accessing internal RAM from me either (and I think other reviewers on CNET had the same bad luck)...Just got mine on Friday, and it is great except for connecting to the PC (64bit Vista) looping through MTP mode (the device keeps flashing back and forth between main screen and MTP mode, and the PC keeps trying to install the right driver to access the device as a USB mass storage device). Multiple restarts and messing with the device in Device Manager yielded no results, so I just used removable SD card to add files to the device. That obviously works fine, but is irritating.
Anyone else having trouble accessing Captivate as Mass Storage Device?
Best wishes to all.
I can't tell if you're using the Captivate driver located here.
Loosely related...I'm curious as to whether all the work going on in the Modaco SGS forums to optimize I/O (such as this) is applicable at all to the Captivate...anyone know?
I installed the driver on my Win7 machine.
I set up the USB to ask when I plug it in. I select Mass Storage. Two drives show up in the list of drivers, but when I click either one, it says "Please insert a disk in the removable disk".
What am I missing?
[EDIT]
Hang on, there was a window behind my windows with a message about install failure, device unplugged. Trying again.
[EDIT2]
Installed again. Didn't get error. Using same method as above, still no go.
So then I select PC Internet the next time I plugged in the USB cable, and it then gave the Windows POPUP saying Installing Drivers, and finished with Ready to Use. But, now I don't see the drives in Explorer. So I launched Windows Mobile Device Center...didn't see anything.
In settings goto Applications > USB Settings > select "Mass Storage" and viola!
moosefist said:
In settings goto Applications > USB Settings > select "Mass Storage" and viola!
Click to expand...
Click to collapse
I have the popup set to ask, and as noted in my post, I did select Mass Storage first couple times. It does show drives, but but when I click either one, it says "Please insert a disk in the removable disk".
Thanks for the suggestion though.
The windows 7 drivers for htc android phones are hosed in general for me. I have to use linux in a virtual machine to access ANY htc android phone.
once you hit mass storage, if you bring the notification bar down, you can click the "usb" setting and select mount. Perhaps that will work? (or is that for mac only?)
once you hit mass storage, if you bring the notification bar down, you can click the "usb" setting and select mount. Perhaps that will work? (or is that for mac only?)
yes, when you do this you will be able to access both drives without it asking you to insert a disk
I am new to android so I had this problem for a while. But you made my day madjsp. I have been trying to get this phone connected to my pc for the past 2 days, but with very little success. The kies software detected my phone only twice. But this connection was very erratic. Just to copy 200mb of photos the link showed a transfer time of 7 hours. The device would often disconnect itself after like 10 secs.
But until samsung fixes their software and drivers, the mass storage option works very reliably for transfering files between pc and (internal+external) sd cards.
My directions:
1) Choose the Mass storage option in USB settings of the device
2) Then connect to the comp.
3) There should be a message in the notification bar: "USB connected. Select to copy files to/from your computer" . Tap the notification and select mount from the popup.
Now you can view both sd cards from pc and transfer files to/fro w/ ease.
The last step is the most important one. For all those having the problem where clicking the drive in the pc reads "Insert a media into the drive", this should fix the problem. Maybe it is something android specific that I didn't know...
Same thing happen to me, i found drivers on this site and instead or hitting mass storage when it is connect to PC, I hit media PLAYER and it worked fine i was able to see the 16GB and my SD card, Loaded music and videos and pics with no problem, also remember only plug into the back of computer. you can find drivers on this site that will work on like pages 3-6
doomah69 said:
Same thing happen to me, i found drivers on this site and instead or hitting mass storage when it is connect to PC, I hit media PLAYER and it worked fine i was able to see the 16GB and my SD card, Loaded music and videos and pics with no problem, also remember only plug into the back of computer. you can find drivers on this site that will work on like pages 3-6
Click to expand...
Click to collapse
Selecting Media player worked for me as well. I now can see and have access to both my internal and external / removable SD card. Good lookin' out!
My first thread that I can call my own.
Question for you all. Is there an easier way to transfer files over the the GTAB then having to pop out the SD Card and put it into an adapter and then into the computer and then out of the computer, out of the adapter and back in the GTAB?
Because every time I mount the USB, it only mounts the "internal" SD Card. Is there some sort of way to get it to mount both the internal and external SD Card?
I hate messing with the external SD Card. All the "popping in and out" makes me nervous.
I even tried mounting the internal SD Card and then copying the movies/music/etc.. over to the external SD Card via a file manager... but that is DAMNNNNN slow.
I haven't found a way (yet). Given that neither the zPad or TnT stock builds work, I'm thinking it's not that easy to do. Drives me nuts as well because I really don't want to keep taking the card out over and over and potentially damage it, over time.
That's exactly what I am worried about. LOL
I can just picture not paying 100% attention and snapping the card in half or, breaking the "locking" mechanism that holds the card in place.
roebeet said:
I haven't found a way (yet). Given that neither the zPad or TnT stock builds work, I'm thinking it's not that easy to do. Drives me nuts as well because I really don't want to keep taking the card out over and over and potentially damage it, over time.
Click to expand...
Click to collapse
If you have ADB, can you do adb pull or push?
Jim
My workaround has been to use the LAN tab in ES File Explorer to copy data wirelessly to sdcard2. Probably not the speediest method but it keeps the card in place.
The techie/hacker solution to easy file transfer is to use the Rsync for Android app in the market store. Once you have it setup, (not the easiest thing to do) it works great for moving files automated from your gtab back to an rsync server (my linux box to the rescue). I even have a secondary profile to get it to reverse rsync a specified directory FROM my linux box to my gtab. Presto -- easy file transfer via wifi!!!
Also, another idea might be to use Dropbox?
Jim
P0RT3R said:
My workaround has been to use the LAN tab in ES File Explorer to copy data wirelessly to sdcard2. Probably not the speediest method but it keeps the card in place.
Click to expand...
Click to collapse
I do the same thing. It's mighty slow, but it works.
roebeet - an idea that almost worked - maybe you know why?
roebeet said:
I haven't found a way (yet). Given that neither the zPad or TnT stock builds work, I'm thinking it's not that easy to do. Drives me nuts as well because I really don't want to keep taking the card out over and over and potentially damage it, over time.
Click to expand...
Click to collapse
Hi,
You all got me curious, so I just tried the following:
- Created a dir under /mnt/sdcard, /mnt/sdcard/mymnt
- Get temp root (z4root)
- Start terminal
- su
- mount -t vfat /dev/block/vold/179:17 /mnt/sdcard/mymnt
At this point, I can access the sdcard2 by using /mnt/sdcard/mymnt or simply /sdcard/mymnt.
So, I disabled USB debugging, and I get the popup asking if I want to activate USB transfer (I'm on 3452, on earlier TNT firmware, it use to say enable USB storage).
I click the button to Activate, and then another window pops up, and I click Activate.
Then, the popup just stays there, with the spinning thing. It never enables USB transfer, and, on my PC, I see the removable drive, but when I click on it, it says it's not ready.
I've also tried umounting /mnt/sdcard2, thinking that it might be confused because of the two mounts to /dev/block/vold/179:17, but it still does the same thing.
So:
- It looks like I can mount the /dev/block/vold/179:17 (the external microSD card) under /mnt/sdcard, and
- When I do that mount, I can see the contents of the external microSD card in terminal under /mnt/sdcard/mymnt and under /sdcard/mymnt, but
- For some reason, turning off USB debugging/activatiing USB transfer fails.
Maybe someone can figure out why activating the USB transfer fails. If we can figure that out, then that would allow seeing the external microSD card via the PC USB interface.
Jim
I think it would need to mount both volumes -- the internal SDcard and the external SDCARD2 -- separately...
Using a mount (reparse) works internally since they are on the same device -- but if you try to mount SDCARD externally it doesn't understand the reference to SDCARD2
My phone actually mounts to the computer as two drives -- one for internal (SDCARD) and the other for external (SDCARD2)
I'd assume there is a way to have something similar work on our gTablets...
I'll have to slap a spare microSD card into the tablet to try though...wondering if teh INF needs to be tweaked as well (??)
From what Ive seen or experienced, Cyanogen was the only rom that Had the Sd card and Sd card2 Thing fixed right (with exception of having to plug in the Power cord before mounting). Evrey other Rom seems to have problems. But Cyanogen has way too many other problems so I use Vegan since to me it seems the most stable :s
Yeah -- my phone is running a fork from Cyanogenmod 6...so the code is shared
TeutonicWolf said:
I think it would need to mount both volumes -- the internal SDcard and the external SDCARD2 -- separately...
Using a mount (reparse) works internally since they are on the same device -- but if you try to mount SDCARD externally it doesn't understand the reference to SDCARD2
My phone actually mounts to the computer as two drives -- one for internal (SDCARD) and the other for external (SDCARD2)
I'd assume there is a way to have something similar work on our gTablets...
I'll have to slap a spare microSD card into the tablet to try though...wondering if teh INF needs to be tweaked as well (??)
Click to expand...
Click to collapse
That's the problem... When the Gtab is plugged into the PC USB (while USB debug is disabled), only one new "drive" appears, corresponding to /sdcard on the Gtab. There is no 2nd drive appearing on the PC corresponding to /sdcard2 on the Gtab.
I've been looking at my Windows configuration, with the Gtab plugged in, and the one drive that appears shows up under "Portable Devices" branch in Device Manager. The properties show that it corresponds to "wpdfs.inf", and looking through that, it looks like a generic USB Mass Storage configuration, i.e., a USB drive.
I still think that something would need to be fixed on the Gtab end for the two drives to appear on the Windows end.
Jim
app fix
I have found a workaround for the issue with the installation of a single app:
http://forum.xda-developers.com/showpost.php?p=12299831&postcount=2
Depending on what you want to do, an FTP solution is also possible as discussed in this thread:
http://forum.xda-developers.com/showthread.php?t=869844
By using swiFTP, I am able to open a connection through a Win7 windows explorer, and I can drag-and-drop files to SDCARD2 (over a wireless connection). I put a 1Gig movie on the card and it took about 12 minutes.
Another option is to use Multi Mount SD-Card. This is link is for the lite version, there is also a paid version.
This app works outside the embedded SD Card Mounting scheme that comes with Froyo.
With this you dont have to press the "Mount USB" button that comes up in the notification bar when you attach the USB cable. Instead it will auto-mount the either the internal or the external SD Card when you plug in the cable.
(Having configured the setting of your choice before hand).
Unfortunately it can not mount both at the same time.
It works with my GTAB and I'm using VEGAn 5.1 Beta.
(Without the 5.1.1 Suppliment patch)
Folks are still struggling with this?
Use a USB flash drive, I do it all the time. Just a regular, boring, Windows FAT-formatted flash drive.
Wow it is amazing that this problem still exists.
I am a new owner of a Gtab and have had it for less than 2 days. Thank goodness for the many informative posts on this site, that have helped me make my new toy almost perfect.
I updated to 3588, installed cwm and titanbackup, vegan5.1.1 including the suppl patch and even learned how to tether it to my Samsung Captivate. The one thing that was annoying me was my device not seeing the 16 gb microsd card that I had inserted both in the gtab and on my pc.
After reading this thread, it looks like I am not going crazy, but it seems like my device is destined to not acknowledge this addtional storage in it's settings?
I really was hoping to use the external card for videos and my mp3 collection, so I am missing something or did I do something wrong to make this happen?
I would appreciate any comments or suggestions since this is the only thing that I need to get squared away before I install more apps(with the possibility and ever present threat of having to re-install something I may have already done)
I could not post this question in the dev section since I do not have enough posts to allow me to.
Thanks
Tina
Was wondering what experience people had with using their captivate with their car stereos. Preferably via usb cable. If so, how much success are you having? Experiencing any problems? If not, how do you have your usb settings configured. I just bought a pioneer avh-p4200dvd and it gets hung "reading data". Was really hoping to get this working via usb as I dont have the cash to fork over for the bluetooth addon just yet. Any thoughts and help would be much appreciated.
Read the manual for the radio to see what it expects. I would imagine that you'll have to set the phone to mass storage mode. Some HU's have strict rules to where the audio files are located. Some have folder limits. Some require the mass storage to be formatted certain way. Some can only read fat16 formatted mass storage, some can read fat32. Hope this helps. Good luck.
Most headunits can do bluetooth now and works really well to stream bluetooth, but put in mass storage mode and u will prob need ext sd card not the main one. and that should work
Ok Guys,
I have just done the rom swap on my tablet. Everything went fine and thanks to the easy direction builder....worked great. I have a few questions because I am lost. Please help me understand what I have here and how to fix the broke things if they are actually broke.
I can't read a usb jump drive from the usb port
My computer does not see the tablet now that I have changed the rom
Now for my lost part. I am trying to figure out how to move things around on this unit but I can't seem to make the sdcard and sdcard2 make sence. When I dismount the sd card I loose stuff on both sdcard and sdcard2, but when I mount the card again I get back stuff on both. I am trying to figure out which is which. I have heard the sdcard2 in the external but it just does not figure in my head. I hit the home button on the file manager and it brings up sdcard and sdcard2 along with a lot of other stuff. When I click on sdcard it shows all the stuff on the mini sd I have installed and when I click on sdcard2 it shows DCIM & LOST.DIR. That seems to be the internal but it is listed as sdcard2...what gives. Someone please get me up to speed. Also I had some tunes on here and there was cover art that showed when it played and now it is gone......no idea as to where it went.
Sorry for the newb questions but I have never had a tablet like this and it is all new to me.
Thanks
Brad
redbullsushi,
First, if you want more help you will have to give more info. You don't say what rom you are using, etc. That would help.
Second.....when you look at the file manager:
/sdcard -- is the internal memory of you tablet.
/sdcard 2 -- is the name assigned to the miniSD card slot with the external miniSD.
/usbdisk -- is the USB key (large) port.
Don't know why they named them that way but might as well get used to it!
Now sort out what you can and get back here with more info on your G-Tablet and the software on it.
Rev
Yea sorry about that
I am running Vegan 5.1
And I had read about the strange names but mine seem to be backwards. Everything that I think is on my minisd is listed as sdcard.....when i dismount my sdcard in the system I don't see all my stuff anymore and the sdcard shows a blank folder. The sdcard2 still shows the DCIM and LOST.DIR. So it appears to me to be backwards.
I also got the usb storage to work by mounting it in clockwork but the usb connection to my computer is still not working.
Thanks
Vegan does not properly display the microsd storage in the System Settings. When you dismount the sdcard in Vegan from the System Settings, it will dismount the internal storage as this is option in the settings is not referring to the external micro sd. You don't need to be dismounting the sd card in your settings really.
While in Vegan, when you connect the USB to your computer, a notification should pop up in the tablet to enable USB storage, you need to make sure this is turned on, then your pc should see the tablet, and it will see your internal memory (/sdcard).
Turn off your tablet and remove your microsd card and plug it into a card reader, I'm guessing you'll see the DCIM folder.
Ok,
so got the usb working...mine did not offer the turn on option. i had to pull the toolbar down from the top to enable that. should i have usb debugging on?
also, my computer does not read sdhc cards so if anyone has some info on updating a machine running win7 to read that it would be helpful. i have tried both my on board reader and my usb reader and neither work. i assume they are out dated and i need to buy another reader?
that being said how do i see my minisd on the machine other than it is listed as sdcard not sdcard2. i know this because when i hooked to the usb and connected to my cpu i saw all of the things that are listed on sdcard2.....arg
so i must make the assumption that sdcard is my external and sdcard2 is my internal?.......is that right?
Thanks
Also,
I have tried to move some tunes from the sdcard to sdcard2(external/minisd) and it says file cant be moved. I also don't see anywhere that my minisd size is listed......I know this is all noob to you guys but wow this is frustrating. I appreciate the help very much.
Thanks
that being said how do i see my minisd on the machine other than it is listed as sdcard not sdcard2. i know this because when i hooked to the usb and connected to my cpu i saw all of the things that are listed on sdcard2.....arg
Click to expand...
Click to collapse
You're not making much sense to me. Maybe I'm reading this wrong...you're asking how you can see your microsd on your pc (it's microsd, not minisd, minisd is a different format), but at the same time you do see it on your pc (which shouldn't be the case).
On your tablet, what do you see in the /sdcard folder? What do you see in the /sdcard2 folder? On your pc, what do you see when you've connected the tablet to your pc?
Sorry again.......i meant micro not mini. When i look at sdcard i see a bunch of files. When i look at sdcard2 i see the DCIM file. So when i connected to pc i took out microsd to make sure i knew what i was looking at. So sdcard is internal and sdcard2 is micro like you said. I am trying to get used to this.
My struggle now is the 2 avi apps dont play the avi i downloaded. I am also finding apps that wont install, and they seem to be the best of what i need ie: pdf ereader and avi video player. And i cant move files from sdcard to sdcard2.
And let me say dude thanks for your help and i hate you were the poor bast*rd that has tried to help. I appteciate it and if it woild be easier for you to chat on phone i will PM my cell.
Thanks
Get vitalplayer from the market. It plays videos well. My divx/xvid files play well using vitalplayer. It's also dependent on how your videos were encoded.
Hi all, I've been waiting and searching around seeing if I was able to find any kind of fix or something for some time now but it's beginning to get to me far too much.
My problem is when I had the HTC Aria I used to have the audio stored on my phone and plug it into my car's USB connection and the headunit would search the device and find all audio to play through the headunit which I was then able to use my controls on the steering wheel. After some time I bought the Samsung Galaxy S2 (l9100) and to my excitement received the whopping 16GB internal storage as a bonus, so I filled that. And heres where my problem comes in, I cant seem to make my headunit search the internal storage and play all that music, It will only search the SD card (external).
Now from reading all over the internet I've been led to believe by any posts that relate somewhat to this that it wont be possible for this to work, what frustrates me though is that it is possible. I've rooted and flashed various custom ROM's to my device (VillianROM first, Cyanogenmod Nightlies second and now MIUI yesterday). I have successfully had the headunit read my internal (newer and more songs) upon connection twice that I can recall now, I think the first time was after first connection to the car after the cyanogenmod flash and today when I first connected it again. Which led me to believe that it was working and then was just applying a new theme on my phone while hanging at a friends then was taking another friend home and plugged it in and back to only reading from my SD card (external - old crap music) and can't figure out why it has worked twice if it is not possible.
The reason why I am determined to figure this out is due to 16 GB internal storage and only 1 GB external storage and I wish to use my phone to its full potential.
While I'm at it, I guess I should mention my other problem which adds to my determination to get the USB connection working with my car. The USB connection is a much clearer & louder playback (Higher quality) then the AUX (current alternative) and to be safer while driving by using my steering controls.
But since flashing to Cyanogenmod and MIUI (cannot recall whether I had this problem on VillainROM) I've noticed the volume in headset mode (when I have something plugged into the headphone jack - ie, AUX, etc) and I begin turning up the volume from quietest to loudest it get notably louder each press until halfway or a press before halfway and then does not become any louder, which I also think may be making the audio less clear and loud when connected via AUX to my car.
Thanks in advance to anyone whom contributes.
I am usually stubborn enough to sort problems out myself, but for the first time I am asking for help on a community forum.
Anyone have any idea what I'm talking about?
If you need to know anything else don't hesitate to ask.
CM7 volume is a known issues or least it was last time I checked.
Try turning on/off usb debugging is my best guess.
Done that, today at some point it randomly read my internal storage and right now I'm constantly reconnecting it with no success.
The frustration continues as it is obviously possible but appears to have a mind of its own.
With my little knowledge when it comes to android and their platform, is it possible it could be there mount priority of the storage or the internal having something stored on it such as an app that could be in use by the phone which could be preventing the drive from being read?
what the hell... I have the exact OPPOSITE problem.
With my headunit its been only mounting the internal storage, but most of my music I put them in the external since I got a 32gb card!
Could it be mounting the smaller sized storage first? =P
-EDIT-
Actually it should be easier to do it the way you want it to (i.e mount internal only)
just unmount the sd card via the android settings -> storage -> unmount
and once it is unmounted, connect the usb to the car.
The catch is of course if you wanna use the external again you have to manually mount it via the settings.
more info but no real help
I have seen a very similar problem and I feel like I can reproduce it.
I've got a 2010 Hyundai Tucson - it has a USB/aux port in the dash console and can accept anything that can be mounted as flash media, flash drives, ipods, etc can all play back music using the Nav display to browse and playback files from the device.
The stereo plays back music perfectly through both my wife's old and new phones. An original MyTouch 3g and a MyTouch 4g. She's had no problem mounting and reading the files from her internal storage. She can playback music on her phone, the car even remembers her place and resumes where she stopped a song.
I, on the other hand, cannot easily get the car to playback files from my older or newer phone. I started with the original android, the HTC Dream/TMobile G1 then later upgraded to a Samsung Galaxy S 3g/TMob Vibrant. What's the difference? I've run modded android OS on my phones and my wife has not. I had been running CM5 and later CM6 on the G1/Dream until I retired it. Lately I've been using a MIUI mod, Lithium 360, on the Vibrant.
When I plug in to the USB on the car, the phone gives me the mount prompt and the car begins searching for files. Eventually both fail to make any progress.
I've tried many fixes including turning on/off USB debugging, I've tried wiping Dalvik cache, Wiping regular cache, I believe I even did a factory reset, flash zip, full re-install on a road trip just to see if I could get the car to read my files. What I did discover is that the problem is simply not hardware related. I could boot to recovery and use clockwork to mount USB storage. Files were seen instantly and played back fine. However, this doesn't do me any good as I can't really use the device for anything else (safety first ) and not to mention that there's no way I want to run the phone with the screen on for hours. I know there are simple workarounds here. But carrying an aux/patch cable is an extra hassle, and since my phone can hold enough data for my average means, I often don't remember to bring a flash drive with me everywhere. Besides, the USB cable in the dash does double duty, charging while giving access to files.
To be fair, I've only used CM based mods (according to wikipedia, MIUI is somewhat based on Cyanogen) on my phone and have not tried out any other android software. I don't know if that's a connection or not, but it's the only lead I have right now. There's got to be something different about the USB settings in the OS itself compared to stock Android. Is there an apk file one could flash and test somehow?
---------- Post added at 04:56 AM ---------- Previous post was at 04:49 AM ----------
http://forum.xda-developers.com/showthread.php?t=617333&highlight=car+stereo
This thread is above seems to be describing the same problem. This however appears to be an aftermarket stereo.
[Q] After mounting it *immediately* dismounts
Connecting to a Samsung TV (USB debugging ON and clicked on USB Storage until it turns from green to orange) and then browsing USB (Menu => USB device) it mounts the USB ("Android 11GB" which is presumably the internal SD) and then dismounts within a second and restarts initializing. An ordinary USB stick (single file system) does mount.
Is this because the Galaxy S2 mounts two file systems at a time and the TV cannot handle this. Is there an app which only mounts ONE filesystem on the Galaxy ?