[APP][v1.8 (+US)] SGS3 Easy UMS - Mount external microSD card as USB mass storage

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elcoxx

Member
Feb 12, 2011
27
0
Does not work on my i9300 CM11 (KitKat 4.2.2)

Screenshot_2014-01-21-14-12-18.png
 

ansikone

New member
Nov 21, 2010
1
0
Nope on omnirom.

It worked on stock and i think cyanogenmod on my i9305, but ever since I installed omnirom, it hasn't been able to mount it.

Error toast when pressing UMS mode:

"Could not get path of external sd card (extSdCard/external_sd/sdcard1). Maybe it's unmounted?"

Error toast when pressing Mount card:

"Could not mount card.[1]"

First lun file exists.
the second command with the grep, doesn't output anything on terminal emulator.
With ES file explorer I can see that there is a link in my root called "extSdCard" and it takes to the right location, at /storage/sdcard1.

This is internatinal i9305 (LTE) with omnirom 4.4.2-20140124-i9305-NIGHTLY
Baseband I9305XXBMH3
Kernel 3.0.64-CM-g87d4016
 

dzikuss98

New member
Mar 15, 2014
1
0
I am also trying to access External SD via USB.

When I am trying to mount card in application I receive "Could not mount card 1"

When I clicking UMS mode button I receive" Couldn't get path of external card extsdcard/external_sd/sdcard1. Maybe it is unmounted"
although eternal card is visible and accessible in system

Please find outcome of mount command:

_a71@i9300:/ $ mount
rootfs / rootfs ro,relatime 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
none /sys/fs/cgroup tmpfs rw,seclabel,relatime,mode=750,gid=1000 0 0
/sys/kernel/debug /sys/kernel/debug debugfs rw,relatime 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/fuse tmpfs rw,seclabel,relatime,mode=775,gid=1000 0 0
/dev/block/mmcblk0p3 /efs ext4 rw,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1,journal_async_commit,data=ordered 0 0
/dev/block/mmcblk0p9 /system ext4 ro,seclabel,nosuid,nodev,relatime,user_xattr,barrier=1,data=ordered 0 0
/dev/block/mmcblk0p8 /cache ext4 rw,seclabel,noatime,errors=panic,user_xattr,commit=20,barrier=1,journal_async_commit,data=ordered 0 0
/dev/block/mmcblk0p10 /preload ext4 rw,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1,journal_async_commit,data=ordered 0 0
/dev/block/mmcblk0p12 /data ext4 rw,seclabel,noatime,user_xattr,commit=20,barrier=1,journal_async_commit,data=ordered,noauto_da_alloc,discard 0 0
/dev/fuse /mnt/shell/emulated fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
tmpfs /storage/emulated tmpfs rw,seclabel,nosuid,nodev,relatime,mode=751,gid=1028 0 0
/dev/block/vold/179:49 /mnt/media_rw/sdcard1 vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/fuse /storage/sdcard1 fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
/dev/fuse /storage/emulated/0 fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
/dev/fuse /storage/emulated/legacy fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
 

molitar

Senior Member
Mar 10, 2009
693
71
Google Pixel Fold

djgius

Senior Member
Dec 11, 2008
84
0
hello. I have a problem: I have a samsung galaxy s3 and a Sandisk micro sd 64 gb. When I connect my cell to pc and try, with this app, to start the UMS mode the app gives me the error that "the memory is not mounted". Why? the memory is mounted! how to solve? Thank you
 

XeoNoX

Senior Member
Oct 25, 2010
1,040
789
i had today tested following was based on this: http://xdaforums.com/showpost.php?p=39342162&postcount=10

for our S4 it use this to change to Mass Storage in Terminal Emulator (if that fine works we can made a Script for S.Manager to use as Widget:


Steps:
Disconnect Device
now open Terminal Emulator and enter:
Code:
su
setprop persist.sys.usb.config mass_storage,adb
echo /dev/block/vold/179:33 > /sys/devices/platform/msm_hsusb/gadget/lun0/file
Connect Device with your USB-Cable

You have now Access to the external SDCard


Internal SC-Card will not work

this works too on stock s4 rooted with kitkat...worked on my tmobile phone
original thread : http://xdaforums.com/showpost.php?p=51007385&postcount=18
 

joebloggscity

Member
Oct 22, 2012
14
1
Does not work on my CM11T.T

I need help.

I've an S3 which has been rooted (checked root is fine with Root Checker).

I used to use Easy UMS to get to use the external SD card like a USB stick.

However, my phone was updated to 4.3 and since then it doesn't work.

Keeps saying extSD card not mounted, cannot find path etc.... Never seen taht before.

I tried out and installed the apk USB Mass Storage Enabler and good news that my PC can see two drives E & G. However each time I click either of the disks a message comes up saying "Please insert a disk into Removable Disk (G".

Does anyone know what I'm doing wrong? how do i fix this.

Please help.
 

joebloggscity

Member
Oct 22, 2012
14
1
I need help.

I've an S3 which has been rooted (checked root is fine with Root Checker).

I used to use Easy UMS to get to use the external SD card like a USB stick.

However, my phone was updated to 4.3 and since then it doesn't work.

Keeps saying extSD card not mounted, cannot find path etc.... Never seen taht before.

I tried out and installed the apk USB Mass Storage Enabler and good news that my PC can see two drives E & G. However each time I click either of the disks a message comes up saying "Please insert a disk into Removable Disk (G".

Does anyone know what I'm doing wrong? how do i fix this.

Please help.

Did you try to: open the notification bar, a line with USB shoud be there, tap on it and you can activate de USB
Tilagoon

thx for the reply.

In my hpne the "USB" line doesn't show. The two boxes for MTP and camera upload are unticked.

I've found a sort of work aroudn but it's clumsy

1) go into settins and unmount the SD card

2) then run the USB Mass Storage Enabler

3) this should give access to the SD Card

4) on finished go back to settings and mount the card

5) Restart the phone

Cumbersome and if the developers can help sort this out, that woudl be great.
 

frankmichael

New member
May 9, 2014
1
0
UMS with Galaxy S5 (SM-G900F)

I was happily using "Easy UMS" with my previous S3. But now I can't get happy with my great new S5: neither "Easy UMS" nor "UMS Enabler" work for me. With "Easy UMS" I get the unfamous
Could not get path of external sd card (extsdcard/external_sd/sdcard1). Maybe it´s unmounted?
.
With "UMS Enabler" I first get an error
An error occured while identifying the SD card. The card is either not ready or there is no SD card inserted
Trying again seems to work and says "Current State: Mass Storage" but in Windows I only see an empty CD-ROM drive (as reported several times before).

Is anybody willing to help me to find the "magic words"? Here is my debug output:

Code:
shell@klte:/ $ mount
rootfs / rootfs ro,relatime 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,size=942984k,nr_inodes=128709,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
none /sys/fs/cgroup tmpfs rw,seclabel,relatime,size=942984k,nr_inodes=128709,mode=750,gid=1000 0 0
tmpfs /mnt/secure tmpfs rw,seclabel,relatime,size=942984k,nr_inodes=128709,mode=700 0 0
tmpfs /mnt/secure/asec tmpfs rw,seclabel,relatime,size=942984k,nr_inodes=128709,mode=700 0 0
tmpfs /mnt/asec tmpfs rw,seclabel,relatime,size=942984k,nr_inodes=128709,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,seclabel,relatime,size=942984k,nr_inodes=128709,mode=755,gid=1000 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
/dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ro,seclabel,relatime,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/cache /cache ext4 rw,seclabel,nosuid,nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,errors=panic,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/persist /persist ext4 rw,seclabel,nosuid,nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/efs /efs ext4 rw,seclabel,nosuid,nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/persdata /persdata/absolute ext4 rw,seclabel,nosuid,nodev,relatime,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/apnhlos /firmware vfat ro,context=u:object_r:firmware:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=cp437,iocharset=iso8859-1,shortname=lower,errors=remount-ro 0 0
/dev/block/platform/msm_sdcc.1/by-name/modem /firmware-modem vfat ro,context=u:object_r:firmware:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=cp437,iocharset=iso8859-1,shortname=lower,errors=remount-ro 0 0
/data/media /mnt/shell/emulated sdcardfs rw,nosuid,nodev,relatime,uid=1023,gid=1023,derive=legacy,reserved=20MB 0 0
/data/privatemode /mnt/shell/privatemode sdcardfs rw,nosuid,nodev,relatime,uid=1000,gid=1000,derive=none 0 0
/data/knox/sdcard /mnt/shell/knox-emulated sdcardfs rw,nosuid,nodev,relatime,uid=1000,gid=1000,derive=none 0 0
/dev/block/dm-0 /mnt/asec/com.magicandroidapps.bettertermpro-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,errors=continue 0 0
/dev/block/dm-1 /mnt/asec/com.rafoid.multimountsdcard.widget-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,errors=continue 0 0
/dev/block/dm-2 /mnt/asec/com.starfinanz.smob.android.sbanking-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,errors=continue 0 0
/dev/block/dm-3 /mnt/asec/com.tbig.playerpro-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,errors=continue 0 0
/dev/block/dm-4 /mnt/asec/com.speedsoftware.rootexplorer-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,errors=continue 0 0
/dev/block/vold/179:65 /mnt/media_rw/extSdCard vfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,tz=UTC,errors=remount-ro 0 0
/dev/block/vold/179:65 /mnt/secure/asec vfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,tz=UTC,errors=remount-ro 0 0
/mnt/media_rw/extSdCard /storage/extSdCard sdcardfs rw,nosuid,nodev,relatime,uid=1023,gid=1023,derive=unified 0 0
/dev/block/dm-5 /mnt/asec/net.androgames.level-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,errors=continue 0 0

shell@klte:/ $ ls /sys/devices/platform/s3c-usbgadget/gadget/lun0/file
/sys/devices/platform/s3c-usbgadget/gadget/lun0/file: No such file or directory

shell@klte:/ $ ls /sys/devices/virtual/android_usb/android0/f_mass_storage/lun_ex/file
/sys/devices/virtual/android_usb/android0/f_mass_storage/lun_ex/file: No such file or directory

shell@klte:/ $ ls /sys/devices/virtual/android_usb/android0/f_mass_storage/lun/file
/sys/devices/virtual/android_usb/android0/f_mass_storage/lun/file

shell@klte:/ $ mount | sed 's/ on / /g' | grep extSdCard | cut -f 1 -d ' '
/dev/block/vold/179:65
/mnt/media_rw/extSdCard

What I already have tried is:

Code:
echo 0 > /sys/devices/virtual/android_usb/android0/enable
echo "mass_storage,adb" > /sys/class/android_usb/android0/functions
echo 1 > /sys/devices/virtual/android_usb/android0/enable
umount /mnt/extSdCard
echo /dev/block/vold/179:65 > /sys/devices/virtual/android_usb/android0/f_mass_storage/lun/file

Unfortunately I only ended up again with the CD-ROM drive.

Thanks in advance,
Frank-Michael
 

GNJF

New member
Sep 21, 2010
2
1
I get random disconnects sometimes when I am in UMS mode, it goes away for a second and reconnects but it won't allow me to delete or transfer anything until i mount the card and try UMS mode again
 

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  • 355
    This app will make the external (not the internal!) microSD card of your Samsung Galaxy S3 (International, US versions, International LTE) available as USB mass storage device.

    Also reported working on Galaxy Note 2, see compability list below.

    Most important commands in this app:
    http://xdaforums.com/showpost.php?p=27282116&postcount=58
    http://xdaforums.com/showpost.php?p=28151372&postcount=133
    http://xdaforums.com/showpost.php?p=28670285&postcount=1

    Thanks d4fseeker :good:

    :angel: If you like the app, please consider donating by buying this app or via PayPal (see link on the left, below username etc.) :good: Some people gave 1 star reviews to the app although I think I'm extremely clear with stating that this is only a donation app - but I can't change that :(


    Compability
    Code:
    MODEL / ROM / KERNEL / APP VERSION / CONFIRMED BY
    
    WORKING:
    GT-I9305 (LTE) / ? / ? / 1.8 / Jarmezrocks
    SGH-I317 (AT&T Note 2) / I317UCALJ2 / ? / 1.8 / dabuck
    GT-N7100 (Intl Note 2) / ? / ? / 1.8 / geovass
    GT-I9300 (International) / Stock (LFB) / Stock / 1.5 beta / woaloo
    GT-I9300 (International) / CM10 / ? / 1.5beta / lubluchka
    SGH-I535 (VZW) / ? / ? / 1.4beta / open1your1eyes0
    SGH-T999 (T-Mobile US) / ? / ? / 1.4beta / gr4p3s
    ?
    
    NOT WORKING:
    ?
    I can only test it on my own GT-I9300; please report back your success with the information needed in the table above.

    If you have a custom kernel, you have to make sure there is one of the three possible lun files available (see Problems section).

    Regarding US versions: Starting with 1.4beta, it also works with US versions (see here). This may not be the case for all variants, so please report back with the information needed in the compability table.


    Problems? Not working?
    Report the exact problem, model/ROM/kernel/etc., the exact error message and the results of the following commands (use Terminal Emulator or something similar):
    Code:
    mount
    
    ls /sys/devices/platform/s3c-usbgadget/gadget/lun0/file
    ls /sys/devices/virtual/android_usb/android0/f_mass_storage/lun_ex/file
    ls /sys/devices/virtual/android_usb/android0/f_mass_storage/lun/file
    
    mount | sed 's/ on / /g' | grep extSdCard | cut -f 1 -d ' '
    Note: Only ONE of the three ls commands must be successful (file exists)

    You may need to replace "extSdCard" in the last command with the mount point name of your external sd card (e.g. external_sd or sdcard1 for CM10)

    If the last command does fail, there is probably something wrong with your BusyBox installation. You should reinstall it - I recommend this app.

    On some Win7 PCs, these steps may be needed:
    Now follow these steps:

    1. On your Windows 7 computer you will see it will try to install “SAMSUNG Mobile MTP Device” as one of the drivers and fail *this is normal*
    2. Go into Device Manager on your computer, right click “SAMSUNG Mobile MTP Device” and select “Properties”
    3. Click on the “Driver” tab and click the “Update Driver” button, a prompt will then come up
    4. Select “Browse my computer for driver software”, then select “Let me pick from a list of device drivers on my computer” on the next screen
    5. Select “USB Mass Storage Device” as the new driver from that list and finish up that install
    6. At the end you will see something like this on your computer – Screenshot Here
    7. Windows will install final drivers automatically and a new “Disk drive” will show up on your computer, this is your external SD card on your device

    Keep in mind that it is not possible to get access to the internal storage as USB mass storage device.


    Get the "extSdCard is being accessed by [...]" message? Wait until the app accessing the sd card has finished, stop it yourself or reboot.

    Changelog
    Code:
    1.8
    - added support for third lun file, should work with GT-I9305 (Intl LTE version) now
    
    1.7
    - fixed recognition failure if "mount" output contained "on" as the second column (e.g. Siyah kernels)
    
    1.6
    - fixed code so that it (hopefully!) works with recent CM10 versions again
    - made some error messages clearer
    - drop of "beta" name doesn't actually mean much by the way, but I think it looks a bit cleaner this way and does not make a difference
    
    1.5beta
    - added support for CM10 sd card paths (/mnt/external_sd and /mnt/sdcard1)
    
    1.4beta
    - added alternative method for users without s3c-usbgadget (may work on US versions)
    
    v1.3beta
    - rewrote the whole logic
    - now opens Play Store entry of BusyBox if it is not yet installed
    - notifies user if device seems to lack s3c-usbgadget module
    - notifies user which apps are accessing the extSdCard
    - generally better and more precise error messages
    
    v1.2beta2
    - added info about busybox requirement (maybe this will be removed later)
    - added link to donation app
    
    v1.2beta
    - Automatically tries to unmount extSdCard before starting UMS mode. This will fail if some app is accessing it, so just wait or cancel that app if you know it and try again - possibly several times. This prevents the potential data loss with previous versions.
    - It now checks the location of the extSdCard device. This should help with compabilty, e.g. for US versions.
    - Added some log output and toasts (2s delay)
    - Added link to this thread and version number in app
    - It's a beta so please beware, but I think the worst probable thing that can happen is that it does not work (e.g. it does not start UMS if it cannot unmount the extSdCard).
    - Dammit, the whole day is already over
    
    v1.1
    - Added option for going back to MTP
    
    v1.0
    - Initial release


    Screenshot_2012-07-05-17-00-18.png



    Download
    v1.8: http://dl.dropbox.com/u/22760184/android/sgs3-easy-ums/SGS3-Easy-UMS-v1.8.apk

    v1.7: https://dl.dropbox.com/u/22760184/android/sgs3-easy-ums/SGS3-Easy-UMS-v1.7.apk

    v1.6: https://dl.dropbox.com/u/22760184/android/sgs3-easy-ums/SGS3-Easy-UMS-v1.6.apk

    v1.5beta: https://dl.dropbox.com/u/22760184/android/sgs3-easy-ums/SGS3-Easy-UMS-v1.5beta.apk

    v1.4beta: https://dl.dropbox.com/u/22760184/android/sgs3-easy-ums/SGS3-Easy-UMS-v1.4beta.apk

    v1.3beta: https://dl.dropbox.com/u/22760184/android/sgs3-easy-ums/SGS3-Easy-UMS-v1.3beta.apk

    v1.2beta2:
    https://dl.dropbox.com/u/22760184/android/SGS3_Easy_UMS_v1.2beta2.apk

    v1.2beta: https://dl.dropbox.com/u/22760184/android/SGS3_Easy_UMS_v1.2beta.apk

    v1.1: http://dl.dropbox.com/u/22760184/SGS3_Easy_UMS_v1.1.apk

    v1.0: http://dl.dropbox.com/u/22760184/SGS3 Easy UMS.apk
    (also, it's attached)

    Credits: d4fseeker, Sakaschi, bazald, dAKirby309 (icon), RootTools devs

    Code:
    Uses RootTools project, which is made available by Stephen Erickson,
    Chris Ravenscroft, Dominik Schuermann, Adam Shanks under Apache
    License Version 2: http://www.apache.org/licenses/LICENSE-2.0
    8
    It is not working on s4 revolution 8.0 Rom based on stock 4.3
    4
    Just tried mounting in UMS mode and get error:

    Could not get path of external sd card (extSdCard/external_sd/sdcard1). Maybe it's unmounted?

    Rebooted and got the same error...

    This didn't happen with v43.2 and stock kernel. Any ideas?

    Ok. Tried the usb debug switch. Didn't change anything. De-installed Easy UMS. Installed SG USB Mass Storage Enabler. All working correctly!

    Sorted. Thanks.
    4
    I am currently working on a Tasker-based replacement for this app. It does the same thing, but only automatically when you plug in the phone into a PC. It's under testing right now. I will post it in a new thread and let you guys know about it for further testing when I'm done. It will allow you to customzie the mount point and will be more easily adapted to other ROMs.
    3
    It should work with CM10 now :fingers-crossed:

    Regards