
At this moment, we back to the window One time setup where we have to click “Let's go!”.In the next window called “You are done!” Click in the “Finish” button.
In case you have more than one Android device in the same Gmail's account, the window Select your mobile devices will appear, In this list we choose T-Mobile Samsung GT-I9100 and we click “Done”. Now we start session with our Gmail's account, (if you don’t have one yet, follow this link) Here. And in the next window we have to synchronize 1.- Click Sync Setup and click in “Proceed”. A window named One time setup will be open, click on it. After that, it will be shown Whatsapp Messenger, then click over it. In this window we have to type WhatsApp and then click “Find” (To search).
In upper right side, click to the “search” icon (the blue magnifying glass) and a window will appear.