diff --git a/FAQ.md b/FAQ.md
index 09d8d9f..0dadf53 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -52,4 +52,8 @@ So if you notice a significant increase in battery usage after you use Shadowsoc
 
 ### It works fine under Wi-Fi but can't connect through cellular data?
 
-Allow this app to consume background data in app settings.
\ No newline at end of file
+Allow this app to consume background data in app settings.
+
+### Why Camera permission is required on devices below Android 6.0
+
+To scan the QR code through the integrated QR scanner.
\ No newline at end of file