In order to hard reset a Motorola E390, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Motorola E390 device will be brought back to the default configuration of a brand new device.
1. First of all, power up the phone.
2. Continue by opening Main Menu, then selecting Settings and Security.
3. Open Security Menu by typing in the proper lock code. Default code is either 0000 or 1234.
4. Now select Erase and Reset.
5. Your phone will now reset and restart. Well done.