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Nintendo DSi

How do you repair my 64 GB SD card which can't be opened and formatted?

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Wiki User
June 12, 2015 8:14AM

It's really difficult to repair USB drives when they get badly physical damage. I've experienced same problem with my USB drive. I couldn't open it and see its correct size in My Computer. Neither Disk Management nor Command Prompt is able to reformat or fix it. It seems that the memory chip is damaged, which leads to system can't format it. Another reason of such problem might be bad sectors which can't be read or written. Since formatting is a sort of writing operation and rewrites file system. Thus if the drive has bad sectors, then it can't be formatted. use partitionguru to check and repair sectors for it. In a word, if you can't repair it by yourself, then buying a new SD card is a batter choice.