When batteries are inserted, a red light appears in the viewfinder, indicating that power is being supplied. However, nothing is displayed on the LCD screen when the shutter button is pressed. There is dust on the lens, but I don't think there is any mold. Please consider this item as junk, assuming it needs maintenance. ※ Please note that this is a used item, and I do not possess the specialized knowledge of a camera store. Therefore, there may be oversights. Please assume that anything not mentioned has not been checked. We cannot provide support or warranty for any changes in condition or malfunctions after receipt. Please only purchase if you understand and accept these conditions. Returns are not accepted for used items.