RECOMMEND It is suggested that you try KingoRoot Apk first for that it is more convenient and easy to use without connecting to a computer. Root Android 4.4.2 and 4.4.4 via KingoRoot APK without connecting to PC The newly integrated script in Kingo ROOT is a universal one for Android 4.3, 4.4 and some 5.0 devices.
KingoRoot Android is a one-click root method for devices running Android 4.4, including flagship devices from manufacturers like SamSung, HTC, SONY and else.