WIFI Kill App - Prank your friend by killing their wifi connection

Requirements For Use this Trick : 
                                                  1. Rooted Phone
                                                  2. Android Version 4+
                                                   3. Wifikill App

  
Steps Of this Trick: 
   1. At first , Download Wifikill App from  here

    2. After download this app, install this app on your rooted phone
     
   3. Now launch this app , it will ask you for Root Permission, Simply click on Grant Button , after         giving root permission now Click on symbol which you will see at the top of the app,This                   Symbol is look like play button.

  4. Then it will Start Scanning and it will take sometime , it will take approx 1-2 min to scan your           wifi fully.

  5. After scan success , it will show you IP Address of Wifi 
  
  6. Click on IP address and it will open new window , Click on Grab Button, After that click on Kill       button .
   
  7. That's all you done, now your friends will not able to use Wifi connection , they will still connect      to Wifi but they will get speed 0 Kbps .   


For Revert Back, and Unkill Wifi Connection from your Device

1. Untick on Grab All Button, After that click on Kill button
2.Then Go to Main Screen of app and Click on Symbol Normally
3. Now your friend , can use Wifi Normally 

Note :  I am not responsible for any issue , use this trick at your own risk.