1, key combination to lock the screen: long press and hold the power button and volume down button of the nut projector until the screen is locked. This method is similar to the key combination screen locking operation on the mobile phone.
2. Apply screen lock: Find a shortcut on the desktop of the nut projector, and click to enter the setting interface. In the setting interface, you can find the screen lock option and set it. You can also use the remote control of the nut projector, press and hold the setting key on the remote control to enter the setting interface, and select the screen lock option.