T610 is getting write protected

[redhat]

When I try to add/delete files to my T.Sonic 610 MP3 player, via my computer, it gives me an error stating that the device is write-protected, Please remove the write-protection to continue. But I have checked, and the player is not locked. Moreover, I am able to start and play the files from my player. I can delete my music files through the player interface too.
How do I start adding files to my player now?

I wrote about this to the Transcend Tech Support too. They advised me to flash my fimware, which I tried doing according to their instructions, but I recieved an error stating that the drive was "Write Protected", yet again.
:SCREENSHOT ATTATCHED

Please help As sonn as possible...*i273.photobucket.com/albums/jj220/dar_nir/Firmwareupgradeerror.jpg

 

[khattam_]

Are you sure it does not have hardware write protection? If there is no hardware protection, do try writing with a different computer. If the problem persists with the new machine, your MP3 player is faulty. Get it exchanged. Hope it is under warranty.

 

[redhat]

There is a player lock, but I checked, it is not enabled. Moreover, I am able to delete files via the player, meaning that the flash drive in d layer is not locked.

No, my player is now out of warranty...

Done, my problem is solved.
I dont know how, but somehow the USB protection was enabled on my system, which I diasabled to allow writing to a USB.

OFFTOPIC: For once, Vaibhavtek's post was useful for me!!