We may have found other answers which could help you.
Click here for Guys Led Problem
Pen Drive not formated, Kingston, Data Traveler 40 GB?
How can I repair my pendrive [kingston,DTI,4gb]?
pen drive not working if i coped more then 500MB?
My pandrive is not detacting?
How can i fix kingston 64Gb Pen Drive doesnt detect? ?
how can i make my pen drive work again?