Files on SD card cannot be opened

[AC Question]

Inserted a new SD card. My Sony Xperia asked if I want to copy photo files and some applications to SD card to save the place. However after copying the files cannot be opened. They are on SD card, I see them in good size but cannot open neither with the phone nor with the computer. Please advise. Thank you

 

[B. Diddy]

Welcome to Android Central! The SD card could be corrupt, defective, or counterfeit. Install SD Insight to see if the card is genuine or counterfeit. Counterfeit cards are programmed to report more storage than they actually have, and if you try saving more than the card can actually hold, then files can start getting corrupt.

If it's a valid card, then go to Settings>Storage, Unmount the card, remove it, and insert it into your computer. Can the computer read these files? Backup as much as you can right now, then run chkdsk to look for bad sectors: http://forums.androidcentral.com/am...guide-using-chkdsk-fix-corrupted-sd-card.html. If it finds bad sectors, and the photos aren't crucial to save, then go ahead and allow chkdsk to try repairing those sectors. If the photos are really precious, then you'll have to try recovering them using 3rd party software: http://forums.androidcentral.com/am...os/500142-guide-recovering-deleted-files.html