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I have a D50 and it now will not allow me to take

I have a Nikon D50 and it now will not allow me to take a picture. I get an error code of ISO (CHA). How can I fix it?

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  • kakima May 12, 2010

    Do you have a memory card installed? What happens if you try to format it in the camera?

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THERE IS A "LOCK" LEVER ON YOUR MEMORY CARD----->UNLOCK IT (when it's locked, you cannot read or write information to it, but the lever is often bumped accidently

Posted on May 12, 2010

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1 Answer

Cha error message on NIKON D50


The memory card needs to be formatted.

Mar 12, 2012 | Cameras

1 Answer

The camera will not snap a picture. I have charged the batteries, so I know that is not it and It has a CHA in the lower right corner of the control panel.


I had the same exact problem. I did some research on this issue. Apparently The D50 will not work with a memory card above 2gb. I swapped my 4gb to the 2gb and solved the issue. Good luck.

Aug 16, 2011 | Nikon D50 Digital Camera

1 Answer

I'm getting an error msg CHA on my camera. I have replaced the memory card but this has not solved the problem. thanks...


I had the same problem. I was try to use a memory card higher than 2GB. I was told that the older model D50 can not handel any thing higher.

May 28, 2011 | Nikon D50 Digital Camera

1 Answer

What does CHA mean


Nikon says this about CHA:


When a Memory card is inserted into a D-SLR camera, the camera checks the card for compatibility and usability. There are three possible results of the test:

1) Camera detects valid Memory card, displays number of remaining images in top LCD

2) Camera displays "FOR" in top control panel LCD. The camera has detected a valid disk partition map, but was unable to read the first sector of the Memory Card. Formatting the memory Card using the cameras format option, should resolve this condition and allow the Memory card to be used.

3) Camera displays "CHA" in top LCD. The camera has detected an invalid partition type or is not working properly. Reformatting the memory card may allow it to be used. If an approved memory card causes the camera to display the "CHA" indicator contact the memory cards manufacturer for assistance.

(Nikon's list of "approved" memory cards can be found here.)

Please note that the default disk format used in Windows XP is FAT32 and if a card is formatted with this setting on an XP system, a D1 series camera will report "CHA". Reformat the card as "FAT" to use in the D1 series camera.


When the CHA error is shown, typically the camera will freeze and require that the battery be removed from the camera before it can take another picture. After that picture has been taken, the camera freezes up again for many owners.

Some owners have success removing and either re-seating or inserting a new memory card in the camera.

Some owners have success clearing the error by removing the lens and then reinstalling.

The key to these "fixes" is that they don't all work for everyone. You might need to return the camera to Nikon for repair. You can arrange for Nikon service here.

I hope this helps and good luck. Please rate this reply
. Thank you.

Apr 06, 2011 | Nikon D90 Digital Camera with 18-105mm...

2 Answers

Nikon D50 Digital Camera. I cannot take a picture, the letters CHA are flashing on the screen.


SD cards have a slide switch along one edge. The position farthest from the contacts locks the card, protecting it from writes. The position nearest the contacts unlocks the card. If the switch is already in the proper position, slide it fully the other way and then back again.

If that doesn't do it, try a different card.

Aug 27, 2010 | Nikon D50 Digital SLR Digital Camera with...

1 Answer

My Nikon D 70 wont take pictures. When I try to


I have one doing similar, try formatting one of your memory cards in the camera

Dec 12, 2009 | Nikon D70s Digital Camera

2 Answers

HI I HAVE a CHA mess in my nikon D50


I believe it wants you to CHArge the battery.

Nov 14, 2009 | Nikon D70s Digital Camera

1 Answer

D50 cannot use a 4gb card??? I use 1gb, 2 gb and no issues, now bought a 4gb card and get a CHA indicator on camera and will not shoot pictures. Can this camera be programed to accept a 4gb or larger...


No, the D50 will not (as you've discovered) accept an SDHC memory card (anything bigger than 2gb is SDHC). I haven't found a firmware upgrade for the D50 to rectify this issue, either. I own a D50 also, and love it, but bigger cards would be nice.

Jul 09, 2009 | Nikon D50 Digital Camera

1 Answer

Memory not working in my D50.


The D50 will only accept up to a 2gb SD card. Cards of 4gb and larger are a newer type of SD card, known as SDHC (secure digital high capacity). At the time the D50 was made, SDHC cards weren't on the market. In short, if it is larger than 2gb it won't work. There's also no upgrade that I've found to handle SDHC cards in the D50, either. I love my D50, except for the card limitation.

Jun 01, 2009 | Nikon D40x Digital Camera

1 Answer

I have a Nikon D50 with an error message "CHA"


This error indicates the following:
This card cannot be used (CHR) blinks.
Problem(s)
Error accessing memory card
Unable to create a new folder (on card)
Card has not been formatted for use on D70

Try another card
Format the card using your D70 (all images will be erased)
Check the card for visible damage or poor contacts.

You may have inserted a memory card that was been used in a different camera or the formatting process did not complete successfully.
I hope this helps.

Jan 30, 2009 | Nikon D70s Digital Camera

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