I'm not asking to recover the data, but is it possible to repair the flash drive itself?
The possibility of repair depends on the real manufacturer of the stick, in terms of availability of necessary utilities (often on the enthusiast sites).
The challenge there is figuring out which components are used, then the search software. In addition, may be required datasheets and circuit points on the Board.
FlashBoot and USBDev help you.
However, even if such a "repair" is successful, I would not have thought the flash drive is reliable and would not trust her with any important data.
The best option for you is to exchange it under warranty.
Special Supplement for those who will visit this question later:
In the process of repairing, flashing, etc. data is destroyed permanently! To restore data from flash card can not even professional money.
So dealing with the real problem.