In order to hard reset a AIRNESS MK99 Gold, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
AIRNESS MK99 Gold device will be brought back to the default configuration of a brand new device.
1. Press & hold the Power button until the phone is turned on.
2. Starting from the Home Screen, open Menu and Settings.
3. Afterwards select Reset and Master Reset.
4. Almost done... now select Yes and type in this safety code - 1234.
5. Done.