Last Updated: Oct 21,2009
How do I erase all data or do a hard reset?
Menu -> Settings -> Security -> Factory Data Reset
Not sure how thorough this is, but I'm sure it's a start. You can also Format the SD Card by going to:
Menu -> Settings -> SD card & phone storage -> Format SD card (may have to Unmount first...)
Again, haven't actually tested the thoroughness of these, but it would probably suffice if you're returning it.
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