[Galaxy S III Themes and Apps] jbeers1:
EasyUMS won't work on AT&T SGH-I747 4.1.1 - please read

This thread has many reports of UMS failures due to SGS3s installing as CD ROMs instead of Mass Storage. I noticed that many people having this problem are on AT&T Galaxy S3s with Jelly Bean like I am. Nobody has come up with a specific fix. We need your help.

Specific details of problem & attempted solutions:

1. AT&T SGH-I747 updated to 4.1.1, rooted

2. Windows 7 Enterprise 64bit

3. Latest Samsung drivers (1.5.18.0- Jan2013) - Note: Kies & AT&T-specific Samsung drivers didn't work either.

To find this driver posted by an XDA dev, Google "exdat.com SAMSUNG USB Driver for Mobile Phones 1.5.18.0"

4. Easy UMS 1.8

- Easy UMS 1.7 worked fine on this SGH-I747 before upgrade to 4.1.1.

- After the upgrade, EasyUMS 1.7 (or earlier) can't run because AT&T moved the lun file. Only Easy UMS 1.8 correctly locates the lun file at

/sys/class/android_usb/android0/f_mass_storage/lun/file.

-UMS Mode is consistently granted, although I often need to force stop Media Storage first in Application Manager. I can see all SD card folders but cant open any. Error message = "Windows can't read the disc in drive E:\folderName". I then re-formatted the 16G card as fat32 using a MicroSD adaptor on a Win7 machine. Also, factory reset phone and restored to 4.1.1 stock using Odin without success.

Device Manager shows:

- In MTP mode - I see SAMSUNG Android Phone..SAMSUNG Android ADB Interface and Portable Devices..SAMSUNG-SGH-I747 . Both internal (phone) and external (SD card) drives work fine.

After UMS mode - Still see SAMSUNG Android Phone..SAMSUNG Android ADB Interface , but NO Portable device visible! I always get DVD/CD-ROM drives..SAMSUNG File-Stor Gadget USB device no matter which driver set I use. Note that there is NO SAMSUNG Mobile MTP device installed (failed or not) to convert to a mass storage device using instructions on first page of this thread.

SAMSUNG File-Stor Gadget USB device is recognized as a CD-ROM. There is no way I've found to update its driver & convert it to a Samsung Mobile MTP device or USB mass storage. All my attepts to uninstall it and force install the Samsung Mobile MTP device from some .inf file in the Samsung driver tree have failed. AT&T phones use the drivers at C:\Program Files\SAMSUNG\USB Drivers\02_Siberian

Other things that didn't work are:

- Uninstalling Kies, rebooting, and using DriveCleanup from an elevated Dos prompt to clear out all drivers and registry drive information. Reinstalled many different driver versions suitable for my OS - none fixed problem

- All older versions of Easy UMS won't run on this device (lun move)

- Clearing dvorak cache, factory reset , reinstall clean, reboot before trying, disconnect commputer internet and phone data before connect, waiting for UMS mode to establish connection >10 sec, alwasys safe disconnect before remount MTP, reformatting SD card, reading everything I could find on the internet about UMS and android. Have tried all known options. I am an experienced troubleshooter, with several years of android root experience on multiple phones.

What specific suggestions do you have to offer? Thank you for reading, please help.