Hi, a friend of mine tried Mario Kart wii and the wii asks to update (I used the same disk with him I always play on). I didn't got that and my firmware is the latest 3.1E he has never updated his wii before and bought it a few weeks after the release. He has a PAL wii (never updated before) and I don't know what modchip he has. Is it safe to update? Thanks in advance!