How do I clear my personal information from my unlocked iphone?

I have an unlocked jailbroken iPhone that I am going to sell. How can I clear all of my personal information from the phone before I sell the phone without having to relock/unlock the phone again?How do I clear my personal information from my unlocked iphone?When you sync it in iTunes click Restore and restore it to its original settings. Then go to Settings on your iPhone, Reset %26gt; Reset All Settings.How do I clear my personal information from my unlocked iphone?Reset

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