diff --git a/.github/faq.md b/.github/faq.md
index 848e607b..b061000c 100644
--- a/.github/faq.md
+++ b/.github/faq.md
@@ -14,6 +14,11 @@ Crash: [Submit an issue](https://github.com/shadowsocks/shadowsocks-android/issu
 * Tap the number to enter the port you wish to use; (if the keyboard doesn't pop up automatically for some reason)
 * Use Tasker integration to create a desktop widget.
 
+### How to add QR code from local gallery?
+
+Scan it with a third-party scanner like [QuickMark Barcode Scanner](https://play.google.com/store/apps/details?id=tw.com.quickmark) and click the `ss` url.
+
+
 ### Why is NAT mode deprecated?
 
 1. Requiring ROOT permission;
@@ -47,3 +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.
+
+### Why Camera permission is required on devices below Android 6.0?
+
+To scan the QR code through the integrated QR scanner.
+