In order to hard reset a Philips 580, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Philips 580 device will be brought back to the default configuration of a brand new device.
1. Power up the phone.
2. Open Settings Menu and select Reset Settings.
3. Enter phone's security code and confirm the incoming info.
4. Done.