After all, there are too many versions of the Android system, the hardware configuration has high and low, each different. rom version has a native, there is also a depth of customization, cold miscellaneous cell phone note can be rooted on the root, can not be, it is also quite difficult to brush, after all, there is a rom to brush the machine to be able to, once the brush is bad, it is difficult to solve.
There are also a lot of rooted cell phones that work. For example, z4root, kingroot, one key root, mobile uncle, etc. These are useful for 2.3 or less. The computer side of the solution is a lot of, a software support is not complete, can only wait for the follow-up upgrade support.
Rooting is successful, and you must have "super user" administrative privileges, otherwise rooting won't work.