Built-in Android reset
The built-in functionality is probably the easiest to use, as it doesn't require any installation. Just get to the restore from the Settings menu (where will depend upon your handset and carrier). Of course, you need to have the phone handy to wipe the data on the phone.
Jack Wallen is an award-winning writer for TechRepublic and Linux.com. He’s an avid promoter of open source and the voice of The Android Expert. For more news about Jack Wallen, visit his website getjackd.net.