In order to hard reset a Gemini Devices GEMQ7851BK GD8 Pro, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Gemini Devices GEMQ7851BK GD8 Pro device will be brought back to the default configuration of a brand new device.
1. Press Power button to turn on the phone's display.
2. Open Main Menu and go to Settings > Backup & Reset.
3. Continue by selecting Factory data reset > Reset device > Erase everything.
4. Voila! The hard reset process is now over.