This can happen with any camera, you turn it on and there is no screen at all. When you push the button looks like it wants to do something, but nothing-it's not working. When you remove the SD card and try again-still the same. Actually because of the shortage inside the SD card the camera stock in this stupid mode. Now we have to try to reset it. What we do is keep the power on, open the battery tray, remove the battery, wait for a second or two, then put it back again. Insert a new SD card and your camera is ready to use.