Dropped my Nikon D50 and now it shows there is no SD card in it and the battery indicator is flashing. Nothing appears on the LCD - including the menu. I've taken the SD card out and the battery and reinserted, but it won't take pictures.

Hi Have you tried resetting the camera back to factory settings? This should clear up any problems...if it doesn't it may at least let you know what the problem is? Also...do not use an SD card no bigger than 2 gigs, What is thee display showing? Make sure the date and time are correct! Get back to me if you need any more help...Thanks...John,

You must take it or send it to Nikon it sounds like the computer went crazy and has to be calibrated you cant fix it yourself .

use it anyway

The SD card has nothing to do with your problem. Make sure that the battery is good; i.e., it is both taking and holding a charge. If you have a voltmeter, look at the back of the battery just under the three electrical contacts. You will see that they are labeled "-", "S" and "+". After charging the battery, measure between the "-" and the "+". It should measure 8 volts DC. Then measure between the "S" and "+" and it should also measure about 8 volts.
Next, you need to see if a short circuit in the camera is loading down or draining the battery. Put the battery in the camera. Keep the camera turned off and leave it overnight or for a day and remeasure the voltage. If it has dropped more than a 100 mv (0.1 volts) the problem may be with the camera. If that is the case, you will need to send it in for repair.

The D50 works with SD cards. Your 4GB card is actually an SDHC card. While it fits into the slot, it will only work with devices specifically designed to accept SDHC cards. The D50 wasn't. It only works with SD cards, 2GB and smaller.

you are probibly inserting it the wrong way so try the other way goodluck... ;')

have you tried leveing it on with the battery in for a while

Sounds like a power problem. Try checking voltage of battery and cleaning contacts with a cotton bud and electrical contact cleaner $8 at repco. Had a similar problem with a pentax mini slr. Verdigris (****) on battery terminals is dynamite in low current circuits. If you cant afford contact cleaner use special methylated spirit ( $3.00 at local pharmacy). Good luck Trevor

Hi
I had the same problem and rectified it by going to Nikons website , follow this link for the answer:

http://nikoneurope-en.custhelp.com/app/answers/detail/a_id/10601/p/19%2C244/c/241/kw/Clock/r_id/127673

It thinks that the SD card is full - try re-formatting if you have no photos there. The SD functions the same as a PC hard drive, and if the directory 'tracks' are corrupt, anything could happen. Else try a new SD card.