What do you mean by permission?

Root refers to the mobile phone with the highest execution, which is available on most Android systems now, but it is turned off by default, because root may bring unsafe factors to the mobile phone, such as being attacked by hackers, deleting things by mistake, and making the mobile phone abnormal or even paralyzed.

After you get the root, you can perform any function in the mobile phone, such as the lack of memory in the mobile phone, deleting system software (note: deleting it by mistake may bring trouble to the mobile phone), and installing software and other things on the SD card (even if you have the root under Android 2.2, you can't do it because your system doesn't support it).

Inconvenient to get root: it will bring risks and instability to the mobile phone. For example, if it is a new mobile phone, don't root it, because the warranty right will be lost.

For details, you can go to the encyclopedia root permission to see.

In short: if you don't have any big needs, you'd better not root.

But if you must, you'd better back up the important files in your mobile phone and download a one-click root (there is one-click root in the personal support Tencent mobile phone housekeeper toolbox).

O(∩_∩)O for pure hands. Thank you.