In order to hard reset a Dell XCD35, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Dell XCD35 device will be brought back to the default configuration of a brand new device.
1. Start by powering down the device.
2. Now press Home button & Volume Up & Power button simultaneously. Hold them until a new menu appears.
3. From that menu, select the wipe cache partition option. Press Volume buttons to scroll through the options and Back key to select one.
4. Select wipe data/factory reset and, finally, press Back key in order to go back and restart the device.