Originally Posted by m20120
You must have root access. You will need a file manager with root access (like Root Explorer) or you can do it from the command line (in a terminal program or adb).
^ that. Also you can use ES File Explorer. But you have to mount system as "read and write".
On Root Explorer only press the button on the top. In ES file explorer "settings/other settings(at the end).
Sent from my O=O