We are trying to encrypt/decrypt conact database for Nokia S60 3rd Edition. However, the database is opened and locked by database server at phone startup, which make overwrite that database at run time impossible. In order o force database server close database file temporary, it seems the only way is to simulate backup/restore on device. Do anyone know how to do it? or how to set KUidBackupRestoreKey from a application rather than backup/restore engine?