Showing the Z: drive (ROM) on Nokia 9210(i)
1. Open the File manager, write ++sp (or if that doesn't work, then ++rom or volkerscode), there should be a green text "++sp" showing on the screen for a short time.
2. Go to the settings and set the ROM drive visible.
3. Exit the application and come back.
4. Now you see the write-protected Z: drive.