Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have a 2 GB SanDisk MicroSD card.

I normally use this card in my Nikon camera but ever since I used it in a Brother printer, I cannot delete any of the files, write or format the card.

I've searched online, including SuperUser, but my problem seems unique in that I do not get any errors when deleting, writing or formatting card.

Nikon Camera: Everything appears normal when using this card taking pictures... no errors when supposedly saving the photo. However, when trying to view pictures, the camera reports that none can be found. I can do a "Quick Format" within the camera'a Setup screens but the card is not formatted and no errors reported.

Brother Printer: Scanning direct to this MicroSD card. (this is the incident that "broke" the card) First document scanned fine. Every subsequent attempt since then always gives an "Out of Memory" error.

MacBook: I am manually deleting the files without errors, but the next time I insert the card, the files re-appear.

SDFormatter: I downloaded and installed the latest version of SDFormatter (v4.0 Mac) from sdcard.org. I am doing a "Overwrite Format" option, I get no errors, and the format completes with a success message. However, all of the original files remain on the card!

I am using a MicroSD to USB adapter with the MacBook and a MicroSD to SD card adapter with the Nikon.

Clearly, based on all observations above, I cannot write to the card. Weirdly, with the exception of the Brother, I just don't get any errors when writing.

It's like the card is locked, even though it cannot be locked without the hardware lock on the SD adapter, and I never get any "write protection" errors.

I suspect that a corrupted MicroSD card is the root problem, but here are my questions:

  1. Why would I not get any errors when writing, deleting or formatting?

  2. What can I do or use to verify the hardware integrity and/or fix this card as needed?

share|improve this question
2  
SD cards do break; sounds like this one has. –  techie007 Sep 15 '13 at 19:24
    
Suggest you to use a recovery software (Recuva is a good choice) to get what you can from the card, then trash it. Get a new one. –  ADTC Sep 15 '13 at 19:35
    
@ADTC, luckily, there is nothing to recover. –  Sparky Sep 15 '13 at 19:37
1  
I agree here. It sounds like the card is just bucked. Good job you don't have anything that needs to be recovered. :) –  Blacklight Shining Sep 15 '13 at 19:39
1  
@ADTC, I'm done with it. SDFormatter (Windows) completes a full format without errors... still no good. Windows built in format option is giving errors: "Windows was unable to complete the format" for all three file system options. Pretty conclusive as far as I'm concerned. Thanks for the help. –  Sparky Sep 15 '13 at 19:46
show 8 more comments

2 Answers

I installed the Windows version of SDFormatter, and although the options are slightly different than the Mac version, the results are the same. Format appears to complete but yet the card is untouched.

Then I tried the Windows built-in format option and it's giving the "Windows was unable to complete the format" error for all three file system options.

The card is toast as far as I'm concerned.

Thanks all for the help.

share|improve this answer
    
You did ask why you wouldn't get any errors when trying to write to the card, and what you could do to verify its integrity on a hardware level. I'm curious about those, myself. –  Blacklight Shining Sep 15 '13 at 20:02
    
@BlacklightShining, yes, true, but there will also be two full days for somebody else to post a better answer before I can accept this. –  Sparky Sep 15 '13 at 20:05
add comment

I had an SD card that I thought was broken and nothing I tried worked. As a last resort I purchased an SD card to USB adapter and I was able to Format the SD card from within windows. It has been working perfectly ever since.

share|improve this answer
    
Yes, as mentioned, I already have a USB adapter for this card. I am presently trying the Windows version of SDFormatter to see if it makes any difference. –  Sparky Sep 15 '13 at 19:39
    
Ah, ok. Yeah, try the windows version and see if that helps. –  Yassar Sep 15 '13 at 19:40
    
SDFormatter (Windows) completes a full format without errors like the Mac version. Windows built-in format option is giving errors: "Windows was unable to complete the format" for all three file system options. It's toast. –  Sparky Sep 15 '13 at 19:48
    
Yep definitely sounds like it :( –  Yassar Sep 15 '13 at 19:48
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.