The problems you can run into using DIY recovery or automatic recovery tools do not reside in the programs themselves, but rather in the lack of experience and knowledge needed to know when to use a tool and when not to use it. If your file or disk becomes inaccessible, the first thing to do is determine what the cause that produced the error is and how to proceed to recover the data. It is not at all easy to be able to fully understand how data recovery tools work and what their limitations are. For that flash drive repair service is the best deal now.
Definition of crash
Damage to the hard disk caused by contact between the heads and the disk plates. These could scratch the magnetic surface of the plate. Such a situation could only damage certain sectors of the disk or, in the worst case, the entire or more surface of the plates. The data contained in these sectors may in no way be recovered, even with professional utilities.
Other types of failures are mechanical or electronic. Errors of this type reside in the drive motor, in the head arm and other moving mechanical parts internal or external. Hardware