I'm forgot my memory card password, how can i would unlock its.

SOURCE: my kingston 2gb memory card was locked.how to

Hi,

What application you are using? This application might have a reset password option. Files maybe encrypted.

thanks,
Dexter

SOURCE: i have nokia 7210supernova and

There should be a switch on the side of the memory card, which says 'LOCK' on one end, and 'UNLOCK' on the other end. Switch it to UNLOCK. If this fails, contact first your network provider(Orange, Voadfone...). If they cannot help, you need to contact Nokia. If this fails, contact Kingston. This will help.
pennywise25