As long as the Android system is ROOT, which some ROM shielded ROOT, so can not directly ROOT, but can be directly brushed, such as MI2, and ZTE phones also have no ROOT, it is automatically open the permissions, so it is very convenient, but not all models are like this.
You can connect your cell phone to the computer, install Sweet Pepper, and then select ROOT crack after automatically obtaining the driver connection. After reboot, if it is already ROOT, you can directly install SUPERUSER. If you still can't ROOT, you can try other brushing tools.
Extended information:
There is no way to crack the permissions on the BBK tutor machine H8, even though it is Android 4.1 system, but all the Android apk software can not be read and installed, only to the tutor's application mall to download and install the software can be used, to find ways to crack the limitations, only modify the system, such as BBK tutor upgrade program out, please masters modify the upgrade program software, and then upgraded, may be able to!
BuBuGao tutor machine with closed Android, can not download other software, only from the application mall to download screened software, which can not have Root tool, unless the system is upgraded to open, but this is not possible.