How to remove write protection from usb flash-drive?

can any one please suggest that why it is displaying such error…

It’s broken.

"can any help me to resolve this issue???"

Yes, return it.   http://kb.sandisk.com/app/answers/detail/a_id/5232/~/return-material-authorization-(rma)-process

""Have you read any of the previous replies in this thread? "

Obviously not.  :cry: