A reset can reboot your product or it can clear all product settings and revert your product to its original out-of-box state.  If you encounter issues like automatic shutdown & reboot, frozen on Nebula logo, or colorful lines, please try to factory reset the projector. 

To Restore to the Factory Default Settings:

Note: This reset erases all settings and data on your projector and reverts the product to its default out-of-box state.

•  Power off the projector.
• Press and hold both "Volume+" and "Power" buttons simultaneously for about 4 seconds, and you will see the Android’s robot logo appear on the screen.
• Press and hold the "Power" button, followed by clicking the "Volume+" button quickly to enter the Android Recovery page 
• Press the "Volume-" button to skip to the "Wipe data / Factory reset" option.
• Press the "Power" button and choose "Yes", the system will automatically jump back to the Android Recovery screen after a factory reset is done.