You can play videos stored on a USB flash drive on your TCL SmartProjector by following the steps below:

Connect your USB flash drive to the USB-A port on the TCL SmartProjector and play videos stored on your USB flash drive.

If the USB flash drive that is connected to your TCL SmartProjector cannot be detected or read, please format it using FAT32 format or try another USB flash drive that is in FAT32 format to check if the issue can be resolved.