What makes the screen stay black when camera is

Junk it. A repair may cost more than the camera is worth.

Could be faulty sd card and you may need to try another one to see if you get the same message.

First try pressing the DISP or DISPLAY button on the back of your camera. If that doesn't help, astuck shutter is another common failure mode for digital cameras. The symptoms of a stuck or "sticky" shutter are very similar to CCD image sensor failure. The camera may take black pictures (for shutter stuck closed), or the pictures may be very bright and overexposed, sometimes with lines, especially when taken outdoors (for shutter stuck open). To confirm a stuck shutter, put the camera in any mode other than "Auto", and turn the flash OFF (you don't want to blind yourself for the next step). Next look down the lens and take a picture. You should see a tiny flicker in the center of the lens as the shutter opens and closes. If no movement is seen, then you likely have a stuck shutter. If so, please see this link for further info and a simple fix that may help.

Look for DISP or DISPLAY button in the lower-right corner of the back of your camera. Press this once while the camera is turned on. The DISPLAY button manually turns the screen on and off. This is to save battery power for extended use. You would then use the optical viewfinder in its place.

Is the screen cracked from the impact of being dropped? It may be worth it to have the LCD screen replaced or just checked in case the LCD ribbon came loose during impact. I would probably contact the guys in the link I posted above and have them check it out. This issue is most definitely fixable though!

Think that you accidentally pressed the DISP or DISPLAY button on the back of your camera. This manually turns the LCD display on and off to save batteries. You would then use the optical viewfinder in its place. To turn the screen back on, just press the DISP button one more time.

This camera is specified for SD and MMC cards. SD cards are available in capacities up to 2MB. If you have a 4MB card, it is probably an SDHC (high capacity) card, which uses a different protocol than the original SD card. So the answer is 2MB, but it must be an SD card, not an SDHC card.

Did you accidentally press the DISP button on the back of your camera? This manually turns the screen on and off to save batteries. Try pressing this button one more time to see if it turns the screen back on.

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i have the same problem please let me know how you make out