[Leica] SD card malfunction

[taniel.dan at gmail.com (Daniel Tan)]

physical damage, power cycling it during write, bad sectors, etc, etc...




On 20 September 2010 12:54, Oliver Bryk <oliverbryk at comcast.net> wrote:

> I would like to understand what might have caused one of my SD cards - a
> SanDisk 4GB SDHC card - to malfunction. I have used it without problems in
> my M8 for several months and formatted it in the camera after every 50 or
> so
> exposures. When I attempted to format it today, the formatting process ran
> much longer than I was accustomed to, and would not quit until I removed
> the
> battery from the camera. I put the card and the battery back and tried
> again
> with the same result. I put in a fully charged battery; as soon as I turned
> the camera on the display read "SD card full". When I tried to format it
> the
> process wouldn't quit. I took the battery and the card out, put both back,
> and turned on the camera; the message on the display read "no SD card". In
> each of the cases described above the battery status/remaining exposures
> display read Zero.
>
> I tried a different card (SanDisk 8GB SDHC) which formatted quickly (there
> was nothing on it) and gave the correct number of remaining exposures.
>
> The 4GB card has apparently failed. What might have caused it to fail?
>
> Oliver
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>