I have a wii console that I brought in 2006 it has the wiikey installed version 3.4u I want to use it but it asks me to update, I imagine that it is to update to 4.2u. If I do the update can I still play my backups or do I have to format the console, and do the update then update the wiikey configuration? Anybody can help me with this? What would I need? I will appreciate it a lot Thanks.