kama update uliyofanya haikufuta system files then this is what you can do to recover your mmc password,
First' know that your phone runs a symbian s60 v3 operating system. tafuta FileExplorer for s60 v3 or Xplore s60 v3 and instal any of them. utazipata in any search engine.
After installing follow the steps:
1. Open FExplorer/Xplore and access the c: drive.
2. open the folder named 'sys', then open'data', There u will find a file named ‘mmcstore'
3. Rename the file to: ‘mmcstore.txt'
4. open the file and itafunguka kupitia notepad
5. U will get your password written in the notepad file..
follow the steps, cheers..