repackage android app (root)

All I need is to change the name of the package (also activity name) And !! the app will operate properly (important) Simply run the app, but the only changes to the Does not work properly If it works (Work correctly) After installing the app asks for root, App at the top of the main screen This message will be shown "Service Running" Click the icon to the notification bar and app,, This seems a small widget screen (Know you try to install the original file) If that does not work properly After installing the app asks for root App at the top of the main screen This message will show "Not running" "start service" button does not change I also want to do is change the name of I gave them the same functionality as the original file is Files of the two (Frep 2.8 version in apk file and unlock key apk file) this program is a program that plays touch Not speak English well So to say that using Google Translator If you do not understand parts of Please talk to me