In order to hard reset a Cube iWork 8, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Cube iWork 8 device will be brought back to the default configuration of a brand new device.
1. Press Power until the phone turns on.
2. Enter Settings, Change PC settings and Update and recovery.
3. Now select Recovery.
4. Later, select Remove everything and reinstall Windows.
5. Now, select Next. Wait for half an hour until the tablet resets and restarts.