In order to hard reset a Motorola MC55, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Motorola MC55 device will be brought back to the default configuration of a brand new device.
1. Make sure that the phone is on.
2. Now press'n'hold the Power + W + C buttons.
3. This will cause the phone to reset and restart. There, done.