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Hey Everyone,
I apologise if this is in the wrong forum (not sure if it should be in Android Development), and before I start I want to make it clear that I DID use the search function, I searched for "Can't Enable USB Mass Storage" and "No option to mount SD Card" with no relevant results.
Rom: JFv1.51 CRB43-EU
Ok, I was using my phone fine I managed to sync around 12GB worth of music and transfer a few files last night (I flashed the ROM around 20:00 GMT after trying out several hero builds).
This morning I mounted the SD Card to my laptop (OS is Windows 7 RC1) and transferred a few APK's. Suddenly as I was in the market the phone comes up with "Checking SD Card for Errors" and had for some reason unmounted itself from the PC.
Now when I plug in the USB cable all I get is the light to indicate it's charging. There's no option to mount the SD Card. I've tried it on my Laptop, My Vista Desktop AND My Xbox 360 (usually there's a mount option when you connect to that which allows the xbox to see music on the phone).
Strangest thing is the MicroSD Card seems fine, I am able to play my music and see the 2 pictures I have stored on it. Another site suggested using Anycut to make a shortcut to SD CArd and then ticking Enable USB Mass Storage. This doesn't work either, I get a ! in a triangle in the status bar saying USB Mass Storage Enabled but neither my laptop or my desktop will pick it up.
Any Suggestions?
Thanks,
Steve.
Is USB debugging enabled in settings>applications>development?
alritewhadeva said:
Is USB debugging enabled in settings>applications>development?
Click to expand...
Click to collapse
Yep, Should it be?
Yes it should be. Try uninstalling and reinstalling the drivers (USB mass storage devices)
Edit: Double pOst
Why does my phone lose the SD memory card when i plug it in to my computer?
as soon as i plug in the usb cable, my phone loses what ever is on the SD card, and when i unplug it, the phone recognizes it again..any ideas?
thanks
When you connect the phone to your computer the computer allows you to use it as a disk drive in which you can drag and drop files onto your device. For some reason while this is happening you can not access it through your phone.
Next time you plug your phone in to your computer and a window comes up asking for activesync, diskdrive etc, press nothing (the screen goes away after 5 seconds) your phone will be completely normal and charging nicely from the computer
happy ending isnt it?
adambu1 said:
Why does my phone lose the SD memory card when i plug it in to my computer?
as soon as i plug in the usb cable, my phone loses what ever is on the SD card, and when i unplug it, the phone recognizes it again..any ideas?
thanks
Click to expand...
Click to collapse
use the phone with activesync and not as a disk drive. .
You have your usb mode set as "disk drive" on the phone.
When it's so, when you connect USB the card is unmounted from the phone's OS so that the PC has direct access to it.
thanks,
where can i change that option? Is it possible to have the phone plugged in to a PC and watch a movie or music off the SD card?
Yes, if you choose activesync mode, as he said above. It normally asks you everytime you plug the USB calbe, but you most likely chose disk drive and checked the "don't ask again" checkbox. You can change it on settings tab, menu->more, connections, USB to PC.
ok, so my next question is, does activesync support windowsXP 64?
thats what we use here at work, and its giving me error messages when i try to use activesync.
What errors?
By default under Windows the software used to manage phones, which is called Activesync on XP, or WMDC on Vista/7, is not installed.
So if you plug the phone in ActiveSync mode on a PC that doesn't have it you'll see missing driver errors. If all you want is to charge the phone you can just ignore them, if you want to access the card/internal memory contents you need to download and install it.
My problem is, when i connect phone to PC with activesync and disconnect it, its working properly after this and i can use SDcard, but when connect it to pc like disc drive after disconnection off cable my phone dont see sdcard. This happening after ROM upgrade from 1.48 to 1.66. Can somone help
Hey there
I am using SE PC Companion and it open a windows explorer window to the SD card to browse it. I am trying to add a couple of music files to the SD card but it always come back with the Access is denied error. I am connecting via the USB cable to my laptop to Xperia X10
Can you please recommend what should I do to make it work ?
Rightclick on the sdcard, is it write protected? Are u using a special sdcard with a little diptrigger, to set the sdcard write protected?
Sent from my X10i using Tapatalk
And is the phone mounted or unmounted? I had some issues with files when the phone was mounted.
The phone is mounted.. how to hook up my phone with laptop without mounting the SD Card
Have PC Companion load up first before plugging in your X10 and mounting it I think. It's just a guess but maybe PC Companion detects your X10 as you mount it and intercept it. If the X10 is already mounted then PC Companion can't intercept it.
This is just my wild guess.
It didnt work... this is weired.. i cant understand why i cant copy anything on to SD card.. the software such as Facebook can make new folder.. and i cant even copy stuff manually
*bump*
Can some one recommend something.. all the suggestions failed..
Check if usb debugging is on or off.
Settings - application - development - usb debugging.
I believe Media Go only works if usb debugging is off.
...and of course, the other suggestions given regarding mounting SD card.
I'm the only one having problems with usb mass storage? With all builds from all chef and all kernels it happens the same. I can read from the pc what is on the SD, but if I copy a file Android dont see it , the file size is 0. And new files created in android can't be readed by windows either (I can only read the files that were written on the SD before the last android boot)
I missing something? I tryied dismounting the SD from android with same results
Are you using it in the same way USB MASS STORAGE in WM6.5 ???
I use USB storage all the time and in every andrioid build I've used(about 20) I've never had any problems. There are many people like me that also have no problems, but there are also many like you that have plenty of problems. I'm not sure that anyone really knows why.
RobertsDF said:
I use USB storage all the time and in every andrioid build I've used(about 20) I've never had any problems. There are many people like me that also have no problems, but there are also many like you that have plenty of problems. I'm not sure that anyone really knows why.
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Click to collapse
Thanks for answering. Do you have 2 partitions on the sd ?
Just want to check a few things:
1: you plug in via usb and select "disk drive"
2: you are not still connected via usb when trying to read the items on the sd card?
3: When you disconnect the usb, you use the usual method (right click the icon in the taskbar and select "safely remove hardware") then wait for the SD card to be prepared by android before accessing it?
Also, how are you accessing the files in Android?
Reno_79 said:
Just want to check a few things:
1: you plug in via usb and select "disk drive"
2: you are not still connected via usb when trying to read the items on the sd card?
3: When you disconnect the usb, you use the usual method (right click the icon in the taskbar and select "safely remove hardware") then wait for the SD card to be prepared by android before accessing it?
Also, how are you accessing the files in Android?
Click to expand...
Click to collapse
1 & 2: Yes. Windows assing the drive letter and can read it fine.
3: I connect Android to pc, choose USB MASS STORAGE, in windows access the new drive letter, rename a file , choose "safele remove hardware", disconnect the cable, wait for Android to "prepare the sd" , go to the file and it has the old name!!! the weird thing is that if I connect to the pc again, I see in the pc the new name!
Is like Android is working with his own FAT32 table IN MEMORY and not refreshing it.
I tried Ghost Commander/ES file manager/Root Explorer, all with the same results.
PD: I found something else... If I DISMOUNT the SD from Android Im still able to access it with ES File Manager,etc. So its not really dismounting it Why can this be happening with all builds/roms?
I have the same problem. Strange thing is it worked fine fore the first couple of days. Anybody have a solution?
Try using "Rescan Media" app after you copy your files to the SD
Still nothing. I have to boot back into winMo to transfer files to my SD card! This is really annoying,
Plenty of other tools provide media scan as well, like Optimize toolbox, Switch pro widget and more. they all worked for me.
[edit] sorry, optimize toolbox doesn't offer it, it just clears the cache :/
power control plus however has this function as well.
I have built an SD bootable CM7 card as described by verygreen, but when I try to create folders on that drive from my PC (filled with APK files) I can't see them on the Nook. I have no problem doing this on my rooted emmc Nook, but when I boot to an SD card (that I am setting up for my daughter's Nook) I can't access any other folders/files.
What am I doing wrong? (The box is checked allowing Unknown Sources and I am currently running 177).
Are you connecting the nook via USB or putting the SD card in your computer directly?
Sent from my NookColor using Tapatalk
The card is placed in a usb card reader (or a usd card reader), either one sees the files on the PC, but it will not find it on the nook. Even when I create a folder on the nook and move the disk over and copy a file into the new folder I can't see it on the nook.
You need to connect through the nook
Sent from my LG Optimus V using Tapatalk
Littlewhat said:
The card is placed in a usb card reader (or a usd card reader), either one sees the files on the PC, but it will not find it on the nook. Even when I create a folder on the nook and move the disk over and copy a file into the new folder I can't see it on the nook.
Click to expand...
Click to collapse
This is because the partition the computer sees is the boot partition... to access it in the nook... either in terminal or adb shell:
1. mkdir /sdcard/boot
2. mount /dev/block/mmcblk1p1 /sdcard/boot/
the items on the boot partition of the SD (including the folders and apks you put there) will be visible as /sdcard/boot
Pretty sure you'd have found it in the VG SASD thread and a few others... since I have posted this several times.
Thanks for the response. I'm not real familiar with ADB so I tried it with terminal and was able to create a directory but mounting gave me a 'permission denied' message.
(Sorry if this is old info, I've spent the morning combing the SASD thread and haven't found it yet, just too much info, thanks for taking the time to help some of us who are slower learners!)
Edit: learning slowly, used su to get into superuser (#) and made directory, but when I try to mount it says not found.
Littlewhat said:
I have built an SD bootable CM7 card as described by verygreen, but when I try to create folders on that drive from my PC (filled with APK files) I can't see them on the Nook. I have no problem doing this on my rooted emmc Nook, but when I boot to an SD card (that I am setting up for my daughter's Nook) I can't access any other folders/files.
What am I doing wrong? (The box is checked allowing Unknown Sources and I am currently running 177).
Click to expand...
Click to collapse
If you asked this question 2 weeks ago, I might able to give you the exact answer but since I wiped out the uSD CM7, I can't remember correctly what would happen.
However, based on my experience (+/- my memory loss), what you describe is all correct and that's what it is. Odd? Maybe, but don't panic.
Let's go slowly
when I try to create folders on that drive from my PC
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Click to collapse
you meant you created a folder in the "boot" partition on the uSD card?
a. if so, it's not recommended. Using the left over FAT32 partition instead
b. if so, try to use Root Folder app (it's a paid app) to access root folder (boot partition) directly on the NOOK. If you see the folder you created earlier, move it to the eMMC storage.
c. if not, pls tell us more
Yes, the SD card was accessed on my PC thru a USB adapter and a folder called 'APKs' was created in the boot sector. (I have also tried just adding the files into one of the other folders, but anything I add is invisible to the Nook).
So if I need to create a folder in other than the boot sector, I would need to use something like Easeus Partition Master to make that sector active and then create the folder and add appropriate files? (When I rooted my Nook directly to emmc it sure seemed a lot easier to access folders created by my PC.)
(Thanks again for all your help.)
That's much clearer, m8
Now, I think it's easier to get straighten.
1. From PC, using SD slot or usb-sd adapter, move (remove) the "APKs" folder off your NC to your PC, save it there, then eject the uSD off PC.
2. Insert the uSD into the NC and turn it on, make sure it boots into CM7 properly.
3. Wait until it completely load. Now using usb cable to connect the NC and the PC.
4. Watch the notification status bar on the NC, tap on it then turn on usb mass storage.
5. PC should recognize the NC and ready for use.
6. Move your "APKs" folder from PC into your uSD (it would probably named as CM7SDCARD)
Update: on item 6, I prefer to move the folder to the eMMC storage. I'm not 110% sure if the NC see "it" (it means the left-over FAT32 partition on the uSD card) or not, but I do believe, 99% it will.
Deleted folder on SD card (from PC) and verified reboot ok.
Connected USB cable to PC then to Nook, no notification bar comes up, but battery icon shows charging as well as the lighted n on the cable.
Tried to use Nook Tweaks to begin USB connection (both boxes checked).
Still no recognition from the PC that anything is connected.
Edit: I am using my rooted Nook to build this SD card for my daughter's new unrooted Nook and when I plug the rooted Nook into the PC I don't get any verification from the PC on it either. No change on the Nook either, just the charging light and icon indicator.
Tried to use Nook Tweaks to begin USB connection (both boxes checked).
Click to expand...
Click to collapse
I don't have the NC with me now so I don't know what "both boxes" are and need to be checked or not.
The USB Settings from Nook Tweaks has a "USB Host Mode" (to enable host mode to connect peripherals) and an "External VBus" (to allow charging and hosting).
Both boxes were checked.
I've read that some of these issues can be caused by a faulty cable. If so, are there other alternatives to connecting thru the cable to open this up.
I have also tried the MiniTool partition program but I have not been successful in getting the active partition to 'stick' . (It immediately reverts back to the root being active after I apply the changes.)
You definitely have to UNCHECK the "USB Host Mode".
I'm not so sure with the "External VBus" status but suggest leave it by default.
With nothing checked in the Nook Tweaks section, USB cable connected to the Nook and then the PC, there is no recognition or acknowledgment that the Nook is there from the PC. (This is true whether I use my rooted version or try after booting to the sd card.)
If it is a cable problem, I will need to replace that, but aren't there other ways to make the sd card usable?
I've tried making the 4th partition action using Minitool and also Easeus but it didn't work. (Minitool just reverts back to boot partition active immediately after I apply the changes.)
Slow down, MiniTool and partitioning have nothing to do with this. Don't make more mess.
a. when plugging NC to PC, do you see any indication on the NC's status bar? like usb debugging?
b. when plugging NC to PC, do you see any indication on the PC (running Windows)? like removable drive?
There is no indication on the PC of any new connection.
The only indication on the Nook is the lighted n at the end of the cable and the recharging icon in the status bar.
Edit: the reason I was providing info on the MiniTools experience I was having is because my original question was how to access a folder (and files) created on my sd-bootable disk on my PC but the Nook can't see it. One way to accomplish this is to write the folder/apks directly to the Nook thru the USB cable. Other alternatives are to use windows to access it on my PC but I need to be able to access the 4th partition (if my reading of the various posts is correct). MiniTools and Easeus are two options that allow you to activate the 4th partition but it has not worked for my yet.
The USB cable connection problem appears to be there whether I boot to emmc or to sd.
Edit: I was able to find a non-nook cable (for my Blackberry) and using it my Nook recognizes when I connect to the PC and executes the USB Mass Storage Utility which allows me to turn USB storage on/off. Unfortunately the PC doesn't add any new logical drives in My Computer. The device manager shows 2 B&N Ereader Disk USB devices but with the yellow ! by them.
The 4th partition you mentioned about should be taken care during the installation, using verygreen's instructions, if you do correctly. There is ABSOLUTELY no need to mess around with MiniTool or the a-like.
Another question, have you turn on the USB Debugging feature? (I don't remember where, NC not with me now). If it not, check it box, try to plug in PC using usb cable again. I expect at least the usb debugging indicator will lit up.
I checked the debug feature (part of settings/applications/development/) and it was not checked. I checked it and now I get the robot icon (USB debugging conntected) and the USB icon to toggle storage on/off. Still nothing in My Computer and the drives shown in device manager are still yellow ! .
The device manager says "This device cannot start. (Code 10)"
I know it would be too early to say but I gonna to say anyway "congratulation".
When you see those icons on the NC status bar, it's 99% that it would work.
Now, back to the reality.
1. Connect usb cable between NC and PC running Windows
2. As you can see those icons, tap on the status bar to bring up then tap on "USB Mass Storage" (or something like "connect to computer for file/folder transfer, NOT the debugging). Read the warning then tap to enable USB connection
3. Now, pay attention on the PC, if it goes smoothly as expect, by now, you now can access both storages (eMMC and left-over of the uSD card) from PC. If so, move your "APKs" folder over.
I wish you luck
1- cable connected, icons on nook show up
2- tapping on status bar gives access to USB Mass Storage utility and option to turn on/off USB storage - with USB storage set to 'on' there is no recognition on the PC
Device manager shows two entries under disk drives for B&N Ebook Disk USB device but both are tagged with yellow ! (which a right click shows "This device cannot start. Code 10")
Is there something I need to do to download a usable driver for this?
(OBTW thank you for your help and patience)
Edit: within device manager I uninstalled the two drives (while the nook was still connected and USB active) and then had it search for new hardware. This time it loaded the drivers and NO yellow ! . At that point the PC recognized the drives and I have been able to create a folder that is accessible by the Nook and the PC. Thank you for help in this.
I have also contacted B&N and have a replacement cable on the way (which seemed to be a large part of my problems). Thanks Votinh for sticking with me while I got this resolved.