my brother bought a Nintendo Wii in Australia and bring here to Brazil.

When he arrived, we have played it fine without any problems.

After a day, it started freezing in Wii Sports. Now I can't enter in the setup that it freezes. There's a Wifi lan here in my house. He said he entered in the internet with the Wii...

Could the Wii had benn updated by itself without any commands...

I don't understand why it's freezing and thinking in sending it back to Australia because the warranty.

It had never been opened and never had seen another game.. just the original Wii Sports....

Could anyone help me ?

Best Regards,