Hello,

I suppose you tried to install rooted by installing “Update Agent” from Google Play.
Instead you should open Mobile Security and select “Anti-Theft (install)”.
Now you’ll find the “advanced installation” option, which will offer you a rooted installation.

To avoid this problem we specifically instruct our users not to install Upate Agent (=Anti-Theft) from google play directly:

Do not install this without being sent here from avast! Mobile Security first.

have a nice day,
Werner