In order to hard reset a DOOGEE Leo DG280, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
DOOGEE Leo DG280 device will be brought back to the default configuration of a brand new device.
1. Press and hold the Power button until the device turns off.
2. Now press'n'hold the Power and Volume Up buttons at the same time. Wait for the Android robot to appear on the screen and release them.
3. Continue by selecting the wipe data/factory reset option. To do it, use Volume buttons to navigate and Power button to select the option.
4. Select Yes from the newly opened menu, confirm with Power button.
5. Lastly, use Power button to select reboot system now. Voila!