diff --git a/README.adoc b/README.adoc
index 78eca71..0013a70 100644
--- a/README.adoc
+++ b/README.adoc
@@ -11823,6 +11823,8 @@ settings put secure install_non_market_apps 1
 
 as mentioned at: https://android.stackexchange.com/questions/77280/allow-unknown-sources-from-terminal-without-going-to-settings-app but it didn't work either.
 
+No person alive seems to know how to pre-install apps on AOSP: https://stackoverflow.com/questions/6249458/pre-installing-android-application
+
 Tested on: `8.1.0_r60`.
 
 === Android init