Disconnect the TV from the network and reset the TV
1. Disconnect the TV from the network
2. Perform a power reset on the TV
4. Follow the on-screen instructions to complete the Initial setup
5. If the problem is not resolved by the steps above, perform a system software (firmware) update
NOTE: For how to update, refer to: How to perform a software update
Is the problem solved?
Yes, the problem is solved No, I want to contact Sony support