I have a D40x Nikon

Hi,

Firstly, Unplug the device and pull out the battery for 30 minutes. Also pull of SD card and other stuff. Put the battery back WITHOUT SD card.

Check, if that could Fix the problem. If yes, then check to make sure the camera should not be in self timer mode.

Now,

If problem still remains, you NEED to send the unit for repair. However, i would like to share some solutions, i saw worked with people who faced same problem :-

1. I just hit the bottom softly with my palm until it made a noise like the shutter was readjusting and now works with no problems!

2. I took the lens off and put it back on and it worked fine.

3. I had exactly the same problem, i tried everything,battery out, sd card out , lens off etc...nothing worked.Completely by chance and irritation i repeatedly pressed the shutter butten over and over
( without the lens attached ) till it didn't react at all.On my LCD i got a normal menu so i put the lens on and bingo it was fixed, still works fine.I think maybe the shutter was out of alignment.


The above one is the most accepted solution on Fixya !!

4. Take the lens off and continue pressing the shutter untill it doesn't react anymore, you should then have a normal menu without the error message.Put your lens on and you're all sorted.Cheaper and less hassle than sending it to Nikon.

5. I had exactly the same problem with 'Error. Press shutter release button again' and i fixed it!

Here's how I did it.

Get a very small cross head screwdriver (watchmaker size)
A can of WD40
Sticky tape
A good light


Remove the Battery and SD card
Open up the bottom of the D40x putting the small screws onto the sticky tape in order of removal.


You might want to take pic with another camera so you know where all the screws go.
Then remove the metal plate (used for the tripod mount, you will need to remove the back of the D40x as well, it's only 2 screws)

6. Spray a SMALL amount of WD40 onto the red and white gear wheels.
(Don't use so much that it drips down onto the optics, you don't want oil in there!!!)

Put the battery in and hold it down to make contact, put in the sd card and switch on the camera and try the shutter button. (switch it to manual focus or it might try hunting around for ages for focus)

It might start working, if not move the red wheel a few stops and try again.

Once it's lubed up and the wheels move it should be ok.
Keep taking pics until you feel it is ok.

Then reassemble following the screws backwards on the sticky tape.

Enjoy your D40x once again ;-)

If problem still persists, contact NIKON at :-

http://support.nikontech.com/app/answers/detail/a_id/238

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

I have a D80 same problem. The cure is a contact cleaner from Radio Shack or Maplin plus 1 cotton bud.
Soak the bud in the solution and rub over the lens contact in the body and on the lens contacts. Re-place the lens and give it a few twists to improve the contact.
I see a number of reports about an error r05. This is not an error only how many pics you can have in the buffer at any time.