How many digits do Nikon D90 camera serial number contains? What is the serial number format?

This indicates the lack of a memory card, or else the installed card is faulty. Remove the memory card (if present), put in a new one, and format it.

Nikon has a free online video tutorial at
http://www.nikondigitutor.com/eng/d90/index.shtml

A number of aftermaket books are available:
http://www.barnesandnoble.com/s/nikon-d90

Try contact Nikonusa.com support.

There are serial numbers on all Nikon products. The serial numbers are on the outside of the nikon equipment and are very easy to find. Find them and send an email to Nikon Service. They will tell you the county of origin of the item. All newer Nikon Lenses intended for the US market have serial numbers that start with the letters "us" .

I couldn't find a reference to a blinking green led when the d90 is off.

I would refer you to Nikon tech support for this one.

http://imaging.nikon.com/products/imaging/worldwide/index.htm

The above link has 1-800 numbers for Nikon.

Hi,
See the bottom of the cam.. There you will find one metal plate, which contains details of manufacturer, model no. serial no. and on this plate you will find the information regarding where you camera has been manufactured... Normally "Made in Japan" is treated as a best quality. "Made in Korea" Ok quality.." Made in China" is downgraded quality....
Hope this has helped you.. Please rate the answer. Thanks....

Glad to be of help :-)

Hi,

It is on the base of the camera in the square with all the logos in, it is the last line.
It looks something like:
6000016

Hope this helps.

You can download the manual here:

http://support.nikontech.com/app/answers/detail/a_id/16087

It will print from this location only if the camera has been registered with Nikon (serial number entry required).

BillB