A robust NBF → VCF converter (like the one in Gammu or nbf2vcf scripts) performs these operations:
Step 4 – Map & transcode ├─ Convert text from UTF-16 to UTF-8 ├─ Map NBF field IDs to vCard 3.0 properties └─ Group multiple values (e.g., WORK, HOME, CELL phones) convert nbf file to vcf
When you backed up your Nokia phone using the PC Suite, all your data—contacts, messages, calendar entries, and photos—was compressed into a single archive with the .nbf extension. While this was convenient for restoring data to the same Nokia device, it is a proprietary format that modern operating systems like Android and iOS cannot read natively. A robust NBF → VCF converter (like the
Convertio, Zamzar (Note: Many do not actually support NBF; they just rename the extension). gammu --backupfile backup
gammu --backupfile backup.nbf --getallcontacts --outputformat vcf --outputfile contacts.vcf