Camera wont turn on My Nikon D40x wont turn on at all, i have been using it, then plugged it in the my laptop with the USB cable, unplugged it to take more pix, and it now wont turn on at all!!

You asked about the USB connection between your camera and the computer. First, be sure you are using an approved USB cord that came with your camera. Nikon gets a little finicky if you use an off brand. Next, be sure your USB outlet is working on your computer. Plug something else into it to be sure it's functional. Next, reboot your computer and shut off your camera. After reboot turn your camera on to see if the computer now recognizes your camera.

It would help to know what software you're using for the post processing. Some software has an option to disallow uploading of duplicate photos. This could be the case if you've already uploaded these same images previously. You might want to check for that.

First, make sure your camera is turned on before you plug the usb cable into your computer.

The D40X Nikon charger is not like the handy chargers that plugs into the wall. Power cable must be used..

connect the mini usb calbe to Camera only. Camera will working like without cable. Go to setup menu and Change USB setting to P, PTP. the unplug the miniusb and hopefully camera will work as it one.

It worked for me :)
Attila

connect the mini usb calbe to Camera only. Camera will working like used to be without cable. Go to setup menu and Change USB setting to P, PTP. then unplug the miniusb and hopefully camera will work as it once was.

It worked for me :)
Attila

I agree - I had a usb cable that worked fine with other devices, but not with the D40x - I changed it and everything worked fine.

forget about the cables. The ends tend to be filmsy, and the connectors can be suspect also. Get yourself an SD single card reader. They are direct plug-in to any USB slot (no drivers or software required), and only cost about $15 US.

Try taking the battery out of the body. With battery out, turn power switch to "on". Turn it back off (battery still out). Wait 1/2 an hour, put battery back in and see what happens. I hope that solves it. If not, re-post your question and we'll investigate further.

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You can purchase an off-camera flash sync adaptor at any good camera store, complete with extension cable.   The should work fine.