Select Restore factory settings .
Scroll to Settings (the wrench icon).
A hard reset (also known as a factory reset) will erase ALL your personal data, including contacts, messages, photos, videos, and custom settings. It will restore the phone to its original out-of-the-box state. Back up any important data before proceeding. Method 1: Using the Phone Menu (Software Reset) This is the safest method if your phone is still turning on and responding. How to Hard Reset NOKIA 2700 classic
Once you see the logo, release only the Power button . Continue holding the other three keys (Call, *, 3). Select Restore factory settings