diff --git a/README.md b/README.md
index 63b1cf0..91e689f 100644
--- a/README.md
+++ b/README.md
@@ -74,11 +74,24 @@ Notes
 
 - For properly opening _any_ file, you must already have a suitable reader for that particular file type installed on your device. Otherwise this will not work.
 
-
 - [It is reported](https://github.com/pwlin/cordova-plugin-file-opener2/issues/2#issuecomment-41295793) that in iOS, you might need to remove `<preference name="iosPersistentFileLocation" value="Library" />` from your `config.xml`
 
 - If you are wondering what MIME-type should you pass as the second argument to `open` function, [here is a list of all known MIME-types](http://svn.apache.org/viewvc/httpd/httpd/trunk/docs/conf/mime.types?view=co)
 
+Android APK installation limitation
+---
+The following limitations apply when opening an APK file for installation:
+- On Android 8+, your application must have the `ACTION_INSTALL_PACKAGE` permission. You can add it by adding this to your app's `config.xml` file:
+```
+    <platform name="android">
+        <config-file parent="/manifest" target="AndroidManifest.xml">
+            <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+        </config-file>
+    </platform>
+```
+
+- Before Android 7, you can only install APKs from the "external" partition. For example, you can install from `cordova.file.externalDataDirectory`, but **not** from `cordova.file.dataDirectory`. Android 7+ does not have this limitation.
+
 Additional Android Functions
 ---
 The following functions are available in Android platform: