Help: Phone's Micro SD Right Protected

[speedyguy]

Suddenly, my micro SD card (Strontium 16gb Class 10) got right protected and I'm not able to access it via phone (read/write/format).

From PC, I can see the contents but can't alter anything. Message pops up saying card is right protected, unlock it.

There is no switch in the card, and I tried using an micro sd to sd adapter. None worked. Need help.

PS: Phone is Sony Xperia Ray (Android)

Enjoy~!

 

[speedyguy]

Update:

Alright, failing to hold up to my curiosity, I further damaged the card. Was able to access it using a sd card adapter (with right-lock in unlocked position), so I went for a FULL format in my windows 7 pc. However, it took ages being stuck at one position so I cancelled. Now its just readable by windows by i think is having bad sectors. Folder's can be created, files cannot be stored. Also, the total space shows up in properties but file system is unknown (previously FAT32). Is there any software to fix/deep format this?

Also, it has a warranty, can I use it any way? How does it work for micro sd cards?

Enjoy~!