How to Enable OTG USB Host on Rooted T-Mobile Galaxy S2! [SGH-T989][Zedomax T989 Kernel]
Well, it took me awhile but I did get OTG USB Host mode to work on my T-Mobile Galaxy S2, you can now connect USB peripherals such as your USB Flash drive, hard disk (powered independently), USB Mouse, USB Keyboard, and much more. Or you can even charge your other USB devices off your T-Mobile Galaxy S2 in an emergency.