If you want to achieve more with your Android smart phone, you can act as the following steps to root your device.
Before rooting your Android smart phone, please:
1. Download CF-Root-SGS2_XW_INU_KL1-v5.0-CWM5.
2. Download Odin3v185.
Step 1: Download CF-Root-SGS2_XW_INU_KL1-v5.0-CWM5 and unzip it on your computer. Then press the "Volume Down" and "Home" buttons of your Android device at the same time for several seconds. So that your phone will be rebooted into "Download Mode".
Step 2. Connect your Android phone to computer via a USB cable. After that, extract Odin3v185 and check the "PDA" box. Double click the CF-Root-SGS2_XW_INU_KL1-v5.0-CWM5.tar, soon you can get a menu as shown.
In this step, please choose "Auto Reboot" and "F. Reset Time", then press the "Start" button to continue.
Step 3. Wait for a while. After getting a "Pass!" on your computer and "Turn off" on the Android phone, please disconnect your Android smart phone and computer.
Step 4. Press "Volume Up" and "Home" at the meantime to reboot your phone to the "Recovery Mode".
Step 5. Select "Wipe data/factory reset" and "Wipe Cache" step by step. At last, tap "Reboot System Now", your Android phone will be restarted at once.
You can work this Coolmuster Samsung Contacts Recovery software to restore lost contacts and text messages from your Android phone at will.
Simple Steps to Root Android Mobile Phone