So there are two types of methods for recovering the password of your memory card with the help of nokia phone.
For Nokia s60 1st and 2nd edition phones.
1. First Install FExplorer in your phone memory.
2. Got to drive C: , you will find a file called mmcstore
3. Send it to your pc directly and open it in notepad or rename the file.
4. At the end of the file you will find your password