arduino +bluetooth CH06+ phone (android 4.0.4)

i have arduino uno+ phone galaxy GT- S7562 (the android inside him is 4.0.4) + Bluetooth CH06 ( file:///C:/Users/admin/Desktop/Tutoriels%20pour%20Arduino%20%E2%80%A2%20Afficher%20le%20sujet%20-%20Module%20bluetooth%20HC-06%20et%20Arduino.htm )+ an application from Google play ( ).
i tried to working with this application and put here in the phone and try if she work or not, when i searching the Bluetooth the resulte is : i always find him but when i try to command the arduino this application stay like not read the arduino ( the color of arduino is gray not blue like the video inside the link previous ).
1-is there something i lack him to put inside the phone?
2-do i must download the android SDK ( l) and put him inside the phone ?
pleaaaaaaaaase hepl i’m so stuck , please tell me step by step what i do to success the communicate between the arduino and the phone.