The root is the highest access to the Android system through which you go in-depth into your Android. Normally a person requires root access to implement comprehensive management and optimization of the phone, e.g., delete the bloatware of the smartphone, prohibit software auto-start, and purify the mobile phone system to save more energy and increase the speed of the mobile phone. Some core and pre-installed software has to have root access to open their functions or to add and remove them.