My USB Flash Drive (4 GB Transcend JetFlash V30) was working fine since 3 years.
Yesterday when i plugged it in, its not accessible its not even showing the memory capacity. windows said this disk in the dirve is not formatted then when i click format it says the disk in the drive cannot be formatted.

I tried many tools like HP Storage Format tool, and many others from Hiren Boot CD but nothing helped.. i have also tried HDD low level format tool from HDDguru but no use.. I have included error msg pic of HDD LL format tool below..

Please provide any solution for this.