Next tap Build Number seven times in quick succession and you’ll see a message saying that Developer Options have been enabled in your device. Open your Android phone settings and go to About Phone, the last option in the list. Step 1: Prepare your Android Device for Screencasting Also, screencasts will not have any audio. The not-so-good news is that you can only capture screencasts on phones (or tablets) that are running Android 4.4 or later. If you would like to record screencast videos of your own Android phone, the good news is that you don’t need to install any app nor do you have to root your device.