In order to hard reset a Kyocera DuraCore E4210, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Kyocera DuraCore E4210 device will be brought back to the default configuration of a brand new device.
1. Turn on the phone with a Power button.
2. Now press the Menu button and enter Settings. There, select the Reset/Delete and Reset Phone options.
3. Read the message that will appear and accept it. Done! Your phone will now reset & restart.