Old feature phones often used extended ASCII or proprietary character sets. When you extract text, you might see garbled names like Jöhn instead of Jöhn . This requires manual correction or trying a different encoding when opening the file (e.g., in Notepad++, try Encoding → Character Set → Western European).

But if you succeed, you’ve just performed —bringing contacts back from a 15-year-old backup that most of the internet has forgotten.

Converting an to the universal VCF (vCard) format is essential for users moving from Samsung devices to other platforms like iPhone or different Android brands . SPBM is a proprietary, often encrypted backup format used by Samsung Smart Switch to store contacts. Understanding the SPBM Format