Hi, I cant test GameCenter stiill and I dont know what I gotta do.

I upload my app in ItunesConnect, my status app is "Prepare for Submission"

I created a Sandbox tester account

and then when I test my app in my iOS device appear "Error 15 The requested operation could not be completed because this application is not recognized by Game Center"

My Game Center Settings in my device is in Developer Register.

I read another post in the forum with the Sandbox setting in the device but I cant see that option in my iPhone, I have 9.2 iOS version.

Please Im lost I dont know what i have to do, I need to test Game Center in my device.

Thanks a lot