How to remove write protection from strontium 8gb memory card

[Hunter Zolomon]

my memory card is write protected. i have tried all method(through cmd, partition manager) window formatter to format memory card.
but the issue not solved yet.showing again and again memory card is write protected, window unable to complete the format

 

[SoNic67]

I have a couple of older memory cards like that. They are just broken...