Method 1: Unlock or reset memory card password of Nokia phones:
The first hack to recover the password of memory cards will not work on Nokia Nseries and Nokia Eseries devices. Here we will use the remote lock feature for re-setting the password. For this, go to your phones settings >Security >Phone and SIM> and then allow Remote lock. The password of your remote lock will be the password of your memory card. So if you want to change the memory card password, just send an SMS containing your remote lock message.
Method 2 : Recover memory card password, using Fexplorer.
As I said, we need to download Fexplorer software for this mobile hack. After installation, Browse to c:\system folder in your mobile phone. Here you would find a file mmcstore. This file is actually used to store memory card passwords in a mobile phone. Rename this file to mmcstore.txt and open with notepad. Now you will see the memory card password as it is, exactly. Mobile manufactures are now aware of this trick, and nowadays they use better encryption methods to block access to passwords.