[Computer failure] Why is my phone's SD card open so that "your disk is unformatted, do you need to format it now"?

Now with the popularity of smartphones, more and more people use the SD card of the mobile phone. There are also some micro SD (smaller).

A recent friend said, why does my phone's SD card plug into the phone and it says "your disk is unformatted, do you need to format it now?" ”

However, there are important data in it. What to do?

My advice :

1. You can use Chkdsk h:/F to try recovery. General directory structure corruption can be repaired.

CMD command can be used.

2. The next recommendation is to use cloud services to regularly back up important information. Otherwise, if you cannot recover, the loss will be very heavy.

3, it is recommended to plug and unplug the U disk, you must wait for the end of data transfer operation.

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[Computer failure] Why is my phone's SD card open so that "your disk is unformatted, do you need to format it now"?