You may face variety of problem when Game Center does not work properly after upgrade iOS 9.2. screen after updating to iOS 9.2. Game Center not working in iOS 9 shows just Blank Screen, White Screen or any the following symptoms, we would suggest some solutions to fix.
It is impossible to run any games that use Game Center
White screen, Blank page during opening.
It is unable to log in
Game Center causes crashing/freezing
Connection to game server is lost
Game Center won’t connect
How to Fix?
+, Firstly, you should Reset network setting to see if the problem is solved: Setting > General > Reset > Reset Network Setting
+, Otherwise, take the following steps.
- Quit all Apps running
- Turn On AirPlan Mode
- Turn Off then Turn On your effected iPhone or iPad
- Go to Setting > Game Center > Logout of the game center. For me this was not previously accessible
- Turn Off airplane mode and Enable wifi
- Login back to Game Center again and you get rid of trouble.