Data is lost after the U disk is pulled out abnormally

Case:
The customer’s U disk unplugged the computer directly without normal exit. Today, the computer found that the data was lost. Check the U disk attribute.There are important data for preservation.

Solution:
First analyze the underlying sectors of the U disk, and find that the MBR information of the 0 sector and the partition table information are not corresponding. Find the “55 AA”” 16 -bit inlet feature code