(1. Connect the mobile phone to the computer, download the Samsung driver, and install it. 2. Click the "First Step of Machine Scruting" button to restart and automatically enter the machine brushing mode, After clicking the "second step of machine flushing", the phone will automatically enter the machine flushing mode 5. Then open Odin3, select quota<imgsrc="titter. gif" smileid="9" border="0" alt=""/>AD [system core file], select the root2 file (note: other options are tacitly allowed), and click to start the machine flushing. After that, root succeeds!!! Tip: Before root, you must check whether the basic version of the mobile phone is i699FK20, or the WLAN cannot be turned on after root.)