Bought a story light early education projector for children. Changing the story inside is actually very simple. I thought it was complicated before. You turn on the story light first, and then connect the computer with usb data cable. After plugging in the data cable, you will hear a beep, and then the projection screen will have a USB flash drive and charging mode for you to choose. If you select the USB flash drive mode and press the OK button, the removable hard disk will appear in the computer. You just need to put the video you want to watch directly in the corresponding video folder, which needs to be put together with the built-in story video. You can try. Oh, the operation is simple.