I'm going to be selling my OG Droid to a friend since I don't need it since I upgraded to a D4. It has CM 7.1 installed. How do I clear all its memory to make sure they don't get my passwords and application data? I'm fine with it still having CM, I just don't want them to access my old stuff. EDIT: Should also mention, I'm not including the SD card. The person I'm selling it to knows this. Will not having an SD card cause problems other than severely limiting apps/media storage?