Android Weird SD file contents..

Hey guys ,

My mom has a galaxy tab 4, and she had some media files on her SD card. Today she opened the ES File explorer and everything seem jumbled. Has anyone ran into this before? Ive attached a pic.tablet screenshot
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Cobra25Asked:
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jmcgOwnerCommented:
Well, at first appearance, it seems that the SD card's file system has been corrupted. First thing to try would be to attempt to read it on a different computer to see if you get more sensible results. If you get the same scrambled results, then you might be able to rescue some parts of the files using media rescue software.

If the results of reading elsewhere are good, you have to consider things like restarting your mom's tablet or uninstalling and re-installing the Explorer software.

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Cobra25Author Commented:
i added some test files, and they show up and work fine. How would just those files get corrupted on the SD card?
jmcgOwnerCommented:
Hmmm. Writing to the file system while it was in a corrupted state may mean there's less hope of recovering missing files.

Note that I said the file system might be corrupted, not necessarily files. The fact that you had a set of directory entries with size 0 and nonsensical names means that the folder information was most likely corrupted by a misplaced write (it's probably one or another variant of a FAT file system, with a pretty simple layout). That could happen easily on a "counterfeit" flash memory device where the actual capacity is much smaller than the advertised capacity. Or it could be that the device has begun to deteriorate with use, since flash memory devices have a limited number of write cycles -- usually this limit is large enough for it not to present a problem in normal use. Or it could be a dirty contact on the SD card or socket that mostly works but sometimes doesn't.

Whatever the reason, I suggest that you put the card in a PC and attempt to use some file recovery software on the media to get what you can off of it intact.  Depending on how much activity there has been since the corruption event, you may be able to recover nearly all of the files' contents, if not their names. After that, use chkdsk/scandisk or other tools to try to repair the file system. (It's best to recover files first before doing anything that attempts to write to the device.) If everything looks okay after that, it's probably okay to continue using the device. If it continues to give trouble, it's probably not worth investing more time into diagnosing/fixing it; time to replace it.
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