How to remove write protection from usb flash-drive?

I tried also to run C:\Windows\system32\diskpart.exe

type :

list volume

then type:

select volume # (replacing sharp with the number of the usb flash-pen)

then type: 

attributes disk clear readonly

then type:

attributes volume clear readonly… but here again the error… 

the flash-pen is in “health status” :confounded:

 even with HDDGuru Low Level Formatt I take this:

16/09/2012 15:44:27 Format Error occurred at offset 9,895,936: 19 - The media is write protected
16/09/2012 15:44:27 Average speed: 26,5 MB/s
16/09/2012 15:44:27 Low-level format is complete.

Very disappoint… 

Have I to turn back to Kingston’s DataTraveler?? 

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