Use IOS_Open("dev/mload/OFF,0) to disable mload device before to launch a game.

It is the only change from 5.0 (i am using a different method using the syscall open vector from fatffs_module in uLoader)

From ehcmodule and odip_plugin, "dev/usb2" is renamed to dev/usb123 now. It can be detected, but remember you that mload is designed to load
modules externally and you can search for "dev/usb123" in the modules and change it for other name (i.e: "dev/urb321") using random methods
before to load the modules. It is very easy to do ;)