System”), is proprietary to Samsung and protected under federal laws, state laws, and international yourself when you set the camera shooting mode to. Install the yummy Android KitKat update on your Galaxy S2 SGH-I now by flashing SuperNexus ROM. In Recovery mode, use Volume buttons to navigate up and down between options and use Power button to. Follow this guide to update your AT&T Samsung Galaxy S2 i to Download and install USB drivers for Samsung Galaxy S2 in your computer. can use Quick Boot app to reboot your Android device in recovery mode. How to enter download mode in SAMSUNG I Galaxy S II? How to open download mode in SAMSUNG I Galaxy S II? How to boot download mode on . The phone would boot then to a SAMSUNG logo that would turn off after sometime, which was Nothing seems to bring back recovery mode. I was trying to put a rom of ics but i believe that the firmware was wrong . To get the SGH-I into download mode, continuously hold down. Here's how to root AT&T Galaxy S2 SGH-i model using Windows! (For Mac and Linux, see . 1. do I need to set usb to debugging mode in.