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M9 - Erasing files


jagsiva

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Hi,

 

My M9 has the latest firmware and I am now seeing a very odd and concerning issue.

 

I had 100 or so images on the card. I chose to "single" delete one, and it appears to have everything on the card erased. When I look at the card on my mac, I see all the DNG files, but with 0bytes, and of course these cannot be opened.

 

This happend twice in the last week. Has anyone else seen this?

 

Thanks for your help.

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Well, maybe you hit the "delete all" button inadvertently. Not a hard thing to do. I would start using the protect function in your case.

 

If "user error" were the case, would you still see the files on the card? It should be "empty", right? I'd probably go through the usual steps e.g. shut the camera down (battery out) and formatting the card in a PC and, if the issue persists, reinstall the firmware update. After that, I'd call Leica ...

 

Cheers, Chris

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On a tangental note, I tend not to erase single files as I have had some failures of sd cards when single files are erased (not on Leica).

I just fill up most of the card and then format

 

Also note that the M8 and M9 are temperamental with class 10 cards (like the sandisk extreme pro). I certainly would avoid these cards or make sure not to erase single files and not to view pictures whilst the camera is still writing the latest picture.

 

rgds

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there is software that may be able to recover the files if you haven't reformatted yet

Or even if you have reformatted the card. Formatting (without overwriting) doesn’t erase data.

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Thanks for all the comments/help.

 

The card I am using is 16GB Sandisk, and I have tried multiple cards. It also is not user error as I can replicate it.

 

I did some further testing this morning, and noticed that it was not consistently writing to the card. Not all the images were being recorded. Also, after turning the camera off and on, some images were missing.

 

This lead me to reinstall the firmware. The M9 now appears to be behaving itself. I can always go back to the previous version if need be, but it looks like I'm OK for now.

 

Little surprised that firmware installation could be this finicky....as everything seemed to go fine with the initial update.

 

Cheers...

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there is software that may be able to recover the files if you haven't reformatted yet

 

look for data recovery

In fact many recovery programs can retrieve images after a card has been formatted. Formatting defines the file/storage structure and not the data. What does almost always destroy the data is erasing by overwriting, although that may not be entirely true if the data is only overwritten once. Using both analog and digital forensic techniques (for example measuring storage cell threshold voltages) overwritten data can sometimes be partially if not completely recovered.

 

Bob.

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What does almost always destroy the data is erasing by overwriting, although that may not be entirely true if the data is only overwritten once. Using both analog and digital forensic techniques (for example measuring storage cell threshold voltages) overwritten data can sometimes be partially if not completely recovered.

 

Bob.

 

Don't try this at home.

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