In order to hard reset a Hagenuk e90, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Hagenuk e90 device will be brought back to the default configuration of a brand new device.
1. Turn on the phone with a Power button.
2. Starting from the Home Screen go to Menu, Settings, Reset and Master Reset.
3. Now select Yes. Tap in the safety code 1234.
4. Voila, done.