QRefine BlogArticles about QR codes from the QRefine team.https://qrefine.app/en/blog/enWhat is inside a QR code that won't scanhttps://qrefine.app/en/blog/unreadable-qr-code-contents/https://qrefine.app/en/blog/unreadable-qr-code-contents/Some QR codes hold binary data, not text, so your camera app shows nothing or garbled characters. Scan the sample and see the contents as hexadecimal bytes.Thu, 10 Sep 2026 00:00:00 GMTqr codebinarycharacter encoding