I think on the Samsung moment you have to remove the battery for a couple of seconds than put it back in pres and hold vol down, call button, end button all together make sure the end button is the last button to pressed, than just wait for the bar to load and you will be in the Android system recovery utility. than I believe you press the end button to do a factory reset. be careful not to do it with a low battery and don't remove the battery while it resets, Im not responsible if you brick your phone! Ive done this several times and it works great if you have forgotten your pattern
Hope that helps.
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