Originally Posted by
solewalker
Wow, glad I found this. When I tried applying for a wifi code via the US site, I kept getting errors. Reading about the bugs on the English site, I decided to try the Chinese site, and was able to obtain codes for my upcoming flight. Fingers crossed it works (somewhat).
Don't bother with pre-registering. You can register on the flight. I've never had an issue registering using just your passport number and seat number. Free Wifi is a great benefit of flying on MU. I wonder how long it will last.