Those running Ice Cream Sandwich Android 4.0 on their International Samsung Galaxy S III may have noticed something they didn’t quite like – the lack of USB Mass Storage (UMS) support. This basic and incredibly useful feature has been replaced by Media Transfer Protocol (MTP). The reason for doing so might be that the fact that MTP allows for simultaneous use of data on both your cell phone and PC.
Although both methods have their advantages, most users miss the functionality afforded by UMS. A major issue with MTP is also that it is not natively compatible with all operating systems. It’s lack of native support on OS X combined with how slow initially connecting makes most people dislike MTP. If you miss using UMS to connect your device to your computer in order to transfer just about anything, you now have a way around it. The issue has been solved for anybody using Samsung Galaxy S III I9300. An application developed by an XDA Developer’s member makes your external microSD card a USB Mass Storage device, easily providing a way around MTP’s restrictions.
The aptly named application, SGS3 Easy UMS, executes a command to make the SD card available as a UMS.
Your device needs to be rooted. To root your international Samsung Galaxy S III, you can follow our detailed, step-by-step guide to root Samsung Galaxy S III. Alternatively, you can CF-Root it, which is easy and perfect for beginners.
What needs to be done next is rather simple. To enable USB Mass Storage on your phone, follow the simple steps below:
Step 1: Download SGS3 Easy UMS from here. The file is very small, only 8.8 KBs.
Step 2: Use a data cable to transfer the app to your phone.
Step 3: Launch the app and tap on the UMS mode button.
That’s all. This will allow you to mount your external SD Card as a removable disk on your PC. You can also toggle UMS off and revert back to MTP by tapping on the MTP mode button in the app.