Convert NBU to CDB

Understanding nbu and cdb file formats

NBU files are backup files created by Nokia PC Suite, primarily used to store contacts, messages, calendar entries, and other data from Nokia mobile phones. These files are essential for restoring or transferring data between devices.

CDB files, in the context of Nokia devices, refer to the Contacts Database file format. This format is used by Symbian OS-based Nokia phones to store contact information in a structured database.

Why convert nbu to cdb?

Converting NBU to CDB is often necessary when you want to extract contacts from a Nokia backup and import them directly into a Symbian phone or compatible contact management software. This process allows for seamless migration or recovery of contact data.

How to convert nbu to cdb

There is no direct, one-click tool for converting NBU files to CDB format, but you can achieve this through a two-step process:

1. Extract contacts from NBU: Use a tool like NBU Explorer to open your NBU file and export the contacts, typically as VCF (vCard) files.
2. Import contacts to CDB: Use Oxygen Forensic Suite or Nokia PC Suite to import the VCF files into a compatible Nokia phone or emulator, which will then generate a CDB file containing the contacts.

Recommended software for nbu to cdb conversion

• NBU Explorer (Free, Windows): Open your NBU file, navigate to contacts, and export as VCF.
• Oxygen Forensic Suite (Commercial, Windows): Import VCF files to a device or emulator to create a CDB file.
• Nokia PC Suite (Free, Windows): Import VCF files to your Nokia phone, which will store them in CDB format.

Step-by-step conversion process

1. Download and install NBU Explorer.
2. Open your NBU file in NBU Explorer.
3. Navigate to the contacts section and export contacts as VCF files (File → Export → vCard).
4. Connect your Nokia phone to your PC and open Nokia PC Suite.
5. Import the VCF files to your phone using PC Suite (Contacts → Import).
6. The phone will store the contacts in its internal CDB file, which can be accessed or backed up as needed.

Tips and considerations

• Always back up your original NBU file before starting the conversion.
• Some advanced tools like Oxygen Forensic Suite offer more direct database manipulation if you need to extract or inject data into CDB files.
• Ensure your Nokia device is compatible with the software versions you use.