+ If you get a -505 error when trying to install this app under Android 5.0, it means that some other app is using the same permissions. + You may want to install a set of command line utilities like “Busy Box” or “Debian chroot” in order to add commands beyond the commands that come built into your Android device. + You need to know (or be willing to learn) how to use the Linux command line to use this app. + This app won’t help you root your phone or change your phone’s IMEI. (Especially if you have a Samsung or HTC device.) + If you are having trouble entering text, try installing the free “Hacker’s Keyboard IME”. No ads, no in-app-purchases, no nag screens, nothing. (Arabic, Chinese, Greek, Hebrew, Japanese, Korean, Russian, Thai, etc.) Same great program, just with a new name. This is a new version of the popular “Android Terminal Emulator” application. Access your Android’s built-in Linux command line shell.