In order to hard reset a Highscreen Boost 3 Pro, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Highscreen Boost 3 Pro device will be brought back to the default configuration of a brand new device.
1. Turn off the device.
2. Press & hold the Volume Up and Power buttons. Release them after the HIGHSCREEN/Android logo appears on-screen.
3. Using Volume and Power buttons, select the wipe data/factory reset option.
4. Now choose Yes.
5. And now choose reboot system now.
6. Voila, done.