In order to hard reset a DOOGEE Bigboy DG600, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
DOOGEE Bigboy DG600 device will be brought back to the default configuration of a brand new device.
1. For starters, press and hold the Power button until the phone is turned off.
2. Afterwards, press and hold the Volume Up and Power buttons at the same time.
3. Release them when the Android logo appears.
4. A new menu will open. In it, navigate to Recovery using Volume buttons.
5. Open Recovery Mode by holding down the Power button. Press Volume button once.
6. Now select the wipe data/factory reset. Use Volume buttons to navigate to it and Power button to confirm your choice.
7. A new menu will open. From it, select Yes. Again, confirm with Power button.
8. Now select reboot system now using Power button. Done!