What if the screen still says that there is no memory card even though one is placed already? Power off the camera then insert the memory card again. Check if your memory card is damaged and change if necessary. Related articles Can I insert/remove the memory card when the camera is powered on? Why does the app show the message "No SD card" when I have already inserted an SD card into the camera? Why is 'Memory Card Not Recognized' displayed? I inserted the SD card but it is not being recognized. (YI LITE Action Camera) Why is there a blinking memory card icon on the bottom-right corner of the screen?