7d problem shows "Err CF" and "Cannot write to card"

Started Jul 12, 2013 | Questions
Grogly
Contributing MemberPosts: 558Gear list
Like?
7d problem shows "Err CF" and "Cannot write to card"
Jul 12, 2013

Hi All,

I am in a bit of a panic because my 7D has the above errors associated with my CF function. The top display says "Err CF" and the back display says "Cannot write to card." Anybody seen this before and found a way around it?

Here is what I have tried:

I have 3 CF cards, all have the exact same behavior error as mentioned above. The camera will lock all functions except for menu operations.

I have removed the battery and replaced it.

I am able to read the cards while in the camera and view files on them, so I am pretty sure that they are not the problem.

I removed the card and changed the mode to allow shooting without the card and the camera behaves normally and the shutter will fire, AF works and IS works on my lens.

I have changed operational modes using the mode dial, no difference in behavior

I have changed from my normal RAW mode to JPG and back with no change in behavior.

Live view has the same error messages.

Removing the lens and replacing it has the same error messages.

I have inspected the pins on the DF connector internal to the card slot and they look normal, no bent pins.

That's all I can think of now, I have done other things though. Thanks in advance for your help.

-- hide signature --

Rod,
Photographic hack since 1969.
Samples of my favorite images can be found here:
http://www.flickr.com/photos/grogley/collections/72157600201558641/

 Grogly's gear list:Grogly's gear list
Canon PowerShot G10 Canon EOS 5D Mark III Canon EOS M Canon EF 28mm f/1.8 USM Canon EF 50mm f/1.4 USM +9 more
ANSWER:
This question has not been answered yet.
Canon EOS 7D
If you believe there are incorrect tags, please send us this post using our feedback form.
mailman88
Veteran MemberPosts: 5,032Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Grogly, Jul 13, 2013

did you format your cards?

 mailman88's gear list:mailman88's gear list
Canon EOS 30D Canon EOS 7D Canon EF 50mm f/1.8 II Canon EF 200mm f/2.8L II USM Canon EF-S 10-22mm f/3.5-4.5 USM +4 more
Reply   Reply with quote   Complain
Dale Buhanan
Veteran MemberPosts: 3,662Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Grogly, Jul 13, 2013

Grogly wrote:

Hi All,

I am in a bit of a panic because my 7D has the above errors associated with my CF function. The top display says "Err CF" and the back display says "Cannot write to card." Anybody seen this before and found a way around it?

Here is what I have tried:

I have 3 CF cards, all have the exact same behavior error as mentioned above. The camera will lock all functions except for menu operations.

I have removed the battery and replaced it.

I am able to read the cards while in the camera and view files on them, so I am pretty sure that they are not the problem.

I removed the card and changed the mode to allow shooting without the card and the camera behaves normally and the shutter will fire, AF works and IS works on my lens.

I have changed operational modes using the mode dial, no difference in behavior

I have changed from my normal RAW mode to JPG and back with no change in behavior.

Live view has the same error messages.

Removing the lens and replacing it has the same error messages.

I have inspected the pins on the DF connector internal to the card slot and they look normal, no bent pins.

That's all I can think of now, I have done other things though. Thanks in advance for your help.

That is what will happen if the write protect tab on the card got moved to lock somehow.  Just a thought.

-- hide signature --

kind regards
Dale

 Dale Buhanan's gear list:Dale Buhanan's gear list
Canon PowerShot SD500 Canon PowerShot G5 Canon PowerShot G6 Canon PowerShot G9 Canon PowerShot Pro1 +34 more
Reply   Reply with quote   Complain
Grogly
Contributing MemberPosts: 558Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to mailman88, Jul 13, 2013

I only format my CF cards in the camera. Currently, I cannot format the cards since the camera tells me I cannot write to the card.

I am away from home for a few days but when I get home, I will format the card in a PC.

-- hide signature --

Rod,
Photographic hack since 1969.
Samples of my favorite images can be found here:
http://www.flickr.com/photos/grogley/collections/72157600201558641/

 Grogly's gear list:Grogly's gear list
Canon PowerShot G10 Canon EOS 5D Mark III Canon EOS M Canon EF 28mm f/1.8 USM Canon EF 50mm f/1.4 USM +9 more
Reply   Reply with quote   Complain
Grogly
Contributing MemberPosts: 558Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Dale Buhanan, Jul 13, 2013

As far as I can tell, there is no lock tab on these cards that I use.

-- hide signature --

Rod,
Photographic hack since 1969.
Samples of my favorite images can be found here:
http://www.flickr.com/photos/grogley/collections/72157600201558641/

 Grogly's gear list:Grogly's gear list
Canon PowerShot G10 Canon EOS 5D Mark III Canon EOS M Canon EF 28mm f/1.8 USM Canon EF 50mm f/1.4 USM +9 more
Reply   Reply with quote   Complain
David Yule
Regular MemberPosts: 191
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Grogly, Jul 13, 2013

It's a long shot, but you could try removing the date backup button cell as well as the main battery. Leave both out the camera for a few minutes. You'll probably lose all custom settings if you do this though.

I've had card write errors 2 or 3 times in the three years I've owned a 7D, twice with the same card. Taking the main battery out cleared the problem each time.

Have you got firmware 2.03 installed? The errors I got were with older firmware.

-- hide signature --

David

Reply   Reply with quote   Complain
garykohs
Veteran MemberPosts: 3,582Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Grogly, Jul 13, 2013

If no pins are bent then one of them must have gotten pushed in. Take a look at this video:

http://www.youtube.com/watch?v=TjYeC7gqL5k

 garykohs's gear list:garykohs's gear list
Sony SLT-A77 Konica Minolta Maxxum 7D Canon EOS-1D Mark IV Sony SLT-A55 Sony SLT-A99 +12 more
Reply   Reply with quote   Complain
Grogly
Contributing MemberPosts: 558Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to David Yule, Jul 13, 2013

Thanks for the reply, I currently have FW 2.0. I was not aware of a later FW. I will try that if I can find the FW update.

The button cell? Where is that thing? I will have to google that I guess. I will try that first before the FW.

-- hide signature --

Rod,
Photographic hack since 1969.
Samples of my favorite images can be found here:
http://www.flickr.com/photos/grogley/collections/72157600201558641/

 Grogly's gear list:Grogly's gear list
Canon PowerShot G10 Canon EOS 5D Mark III Canon EOS M Canon EF 28mm f/1.8 USM Canon EF 50mm f/1.4 USM +9 more
Reply   Reply with quote   Complain
Grogly
Contributing MemberPosts: 558Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Grogly, Jul 13, 2013

I have taken a photo of the CF slot to inspect the pins. All seem normal (I am familiar with inspecting these types of images for my job.) except two pins on either side of the connector look "shorter" than the other pins. Here is a link to the photo:

http://www.flickr.com/photos/grogley/9274042633/

This may be normal for CF slots but since I have never inspected my previous cameras, I am not sure and I can't find anything online that says anything about the pin heights for CF.

-- hide signature --

Rod,
Photographic hack since 1969.
Samples of my favorite images can be found here:
http://www.flickr.com/photos/grogley/collections/72157600201558641/

 Grogly's gear list:Grogly's gear list
Canon PowerShot G10 Canon EOS 5D Mark III Canon EOS M Canon EF 28mm f/1.8 USM Canon EF 50mm f/1.4 USM +9 more
Reply   Reply with quote   Complain
Lemming51
Forum ProPosts: 12,861Gear list
Like?
Re: 2.0.3
In reply to Grogly, Jul 13, 2013

Grogly wrote:

Thanks for the reply, I currently have FW 2.0. I was not aware of a later FW. I will try that if I can find the FW update.

Link for v2.0.3 from Canon USA:  http://consumer.usa.canon.com/cusa/consumer/products/cameras/slr_cameras/eos_7d#DriversAndSoftware

2.0.0 had some bugginess for some users and Canon released 2.0.3 shortly after (link above lists the release date as Sept. 13, 2012).

-- hide signature --

Unapologetic Canon Apologist

 Lemming51's gear list:Lemming51's gear list
Canon EOS 40D Canon EF 50mm f/1.8 II Canon EF-S 15-85mm f/3.5-5.6 IS USM Canon EF 70-200mm f/2.8L USM +5 more
Reply   Reply with quote   Complain
phill104
Senior MemberPosts: 1,473
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Grogly, Jul 13, 2013

Grogly wrote:

I have taken a photo of the CF slot to inspect the pins. All seem normal (I am familiar with inspecting these types of images for my job.) except two pins on either side of the connector look "shorter" than the other pins. Here is a link to the photo:

http://www.flickr.com/photos/grogley/9274042633/

This may be normal for CF slots but since I have never inspected my previous cameras, I am not sure and I can't find anything online that says anything about the pin heights for CF.

-- hide signature --

Rod,
Photographic hack since 1969.
Samples of my favorite images can be found here:
http://www.flickr.com/photos/grogley/collections/72157600201558641/

That is correct, those two are designed to be shorter.

Reply   Reply with quote   Complain
Grogly
Contributing MemberPosts: 558Gear list
Like?
Re: 2.0.3
In reply to Lemming51, Jul 13, 2013

I updated the FW, didn't help.

I removed button cell and battery, didn't help.

Ugh!

-- hide signature --

Rod,
Photographic hack since 1969.
Samples of my favorite images can be found here:
http://www.flickr.com/photos/grogley/collections/72157600201558641/

 Grogly's gear list:Grogly's gear list
Canon PowerShot G10 Canon EOS 5D Mark III Canon EOS M Canon EF 28mm f/1.8 USM Canon EF 50mm f/1.4 USM +9 more
Reply   Reply with quote   Complain
tesch
Regular MemberPosts: 428Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to phill104, Jul 13, 2013

I had this very same problem with my camera of another brand. I sent it into warranty and they found corrosion on the main board so it had to be replaced. Not saying this is your problem, but you may have to send it in. Sorry, man!

 tesch's gear list:tesch's gear list
Sony Alpha DSLR-A100 Sony Alpha DSLR-A500 Sony SLT-A77 Sony Alpha 7 Sony DT 18-55mm F3.5-5.6 SAM +6 more
Reply   Reply with quote   Complain
Don Richardson
Senior MemberPosts: 1,454Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to tesch, Jul 13, 2013

You didn't mention Read/Right speed of your cards. They've come out with faster cards since the 7D came out (800X and 1000X). Is it possible your card is not recognized by the 7D.

-- hide signature --
 Don Richardson's gear list:Don Richardson's gear list
Canon EOS 7D Tamron SP 150-600mm F/5-6.3 Di VC USD Epson Artisan 835 +1 more
Reply   Reply with quote   Complain
Grogly
Contributing MemberPosts: 558Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Don Richardson, Jul 14, 2013

All three cards I use exhibit the issue. I have been using them for 2 two year and always have worked fine. I have two Kingston 16GB 266x cards and one Transcend 32GB 400x card. These are not that old or fast that they should be a problem.

-- hide signature --

Rod,
Photographic hack since 1969.
Samples of my favorite images can be found here:
http://www.flickr.com/photos/grogley/collections/72157600201558641/

 Grogly's gear list:Grogly's gear list
Canon PowerShot G10 Canon EOS 5D Mark III Canon EOS M Canon EF 28mm f/1.8 USM Canon EF 50mm f/1.4 USM +9 more
Reply   Reply with quote   Complain
Mark B.
Forum ProPosts: 15,316Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Dale Buhanan, Jul 14, 2013

Dale Buhanan wrote:

That is what will happen if the write protect tab on the card got moved to lock somehow. Just a thought.

-- hide signature --

kind regards
Dale

CF cards don't have a write protect tab.

Reply   Reply with quote   Complain
Grogly
Contributing MemberPosts: 558Gear list
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Grogly, Jul 14, 2013

Thanks to all. I have tried everything I can think of and all your suggestions and still the camera is misbehaving. It looks like I will be dropping it off at the NJ service center on the way home from my trip. Argh!

-- hide signature --

Rod,
Photographic hack since 1969.
Samples of my favorite images can be found here:
http://www.flickr.com/photos/grogley/collections/72157600201558641/

 Grogly's gear list:Grogly's gear list
Canon PowerShot G10 Canon EOS 5D Mark III Canon EOS M Canon EF 28mm f/1.8 USM Canon EF 50mm f/1.4 USM +9 more
Reply   Reply with quote   Complain
David Yule
Regular MemberPosts: 191
Like?
Re: 7d problem shows "Err CF" and "Cannot write to card"
In reply to Grogly, Jul 14, 2013

The pins look the same as my 7D.

-- hide signature --

David

Reply   Reply with quote   Complain
Keyboard shortcuts:
FForum MMy threads