U disk into RAW capacity is 8M data recovery

Case:
The customer’s unit is a national institution, and the unit distributes an 8G U disk to each employee to back up important documents. The U disk used by the customer a few days ago is directly inserted and inserted back to the computer.Then, then, then

Solution:
Data recovery engineer testing, the customer may have miscalculated, and the short -circuit of the card circuit has broken the control chip.