Camera mode takes blank photos

SOURCE: Viewfinder Blank

This suggests the mirror is stuck up in the take position. Remove the Lens and look at what is behind it In the rest mode you should see a mirror. If it is stuck up you would see the sensor window Which do you see. with the lens off - can the camera be switched on? This might just drop the mirror The mirror is surface silvered - do not touch it. If it still up then it is a repair shop/warranty replacement job.

SOURCE: black screen when in picture mode cant take pictures

PER007 in solution #3 is correct.

• Follow the URL: http://www.nikonusa.com/email_images/nikonusa/service_advisory/launch_all.html
• Fill out the form
• Mail in your camera if it's listed
• Receive your working unit free of charge

SOURCE: nikon coolpix S3- most of the screen is black on shooting mode

I am sorry to say that it sound like the display had been affected by being dropped. I shall do some more research and get back to you shortly

regards
Graeme

SOURCE: coolpix nikon digital camera

This sounds like a broken or cracked LCD screen. The backlite is working, thus you will get the white screen. The LCD could also be disconnected internally, or has other problems. But this is a direct problem with the LCD.
A camera like this can usually take pictures, and you may be able to use it to set the menus by using the video cable to the TV or computer screen (some flat screens have video inputs).

SOURCE: Taking a black and white photo.

You can't, there is no black and white mode on the D50. You will need to take color photos and convert them with photo editing tool.