“My CFast Card Stopped Working in a Canon 1DXMII. What’s the solution?”
The following is a quick troubleshooting exercise to resolve the issue of a CFast card stopping in the Canon 1DXMII Camera:
CFast Card Formatting
Delkin has found that a full โdeep formatโ of the card via PC or Mac will refresh the card so it will continue to perform properly. A โquick formatโ only erases the table of contents, not the actual information. As you write to the card, it must erase and write new information “on the fly”. After a few quick formats, there is a buildup of scattered and fragmented garbage files that need to be erased as you write to the card. This will slow the card down, which will affect your sustained write speed, resulting in the camera stopping its current activity. A Deep format removes these garbage files and completely erases the card, bringing to back to a “like new” state.
Here is a link to our product notification and instruction for refreshing Cfast memory cards:
https://300yeardisc.com/marketing/Delkin_CFast_Consumer_Notice_1.10.17.pdf ย
Here is a link to the Canon 1DXMII Spec which states:
โProper operation cannot be guaranteed for all recording media. Long term usage may reduce a CFastโข
cardโs write speed. We recommend users regularly fully format and refresh their card using the
โFull Format and Refresh Tool.โ
Canon-EOS-1DX-MKII-Specification-Chart
Delkin Devices Warranty
Delkin products have a lifetime warranty against manufacturing defects. If there is an issue with the card, we are happy to authorize a return for evaluation and repair or replacement.
If you still feel there is an issue with your card, please provide your address and contact information, and we will authorize a return for evaluation.
Please email us at CustomerService@delkin.com