Rooted my Droid Bionic and I deleted the yahoo mail authenticator. I looked at earlier posts and tried to save the the zip file in the systems/apps and changed the permissions in root explorer to rw-r--r-- but its still not letting me install. Its saying install failed. Do I save this file from my phone and copy over to the system/app or do I download it from my computer and Unzip it? I need some help here.