This tutorial will show you how to install XeXMenu 1.2 I : Format your USB flash drive as an Xbox storage device. Plug your USB key on the Xbox 360 and go in System Settings Memory, USB Storage Device, Configure Now II : Install XeXMenu Download USB Xtaf GUI and select File > Open first USB Drive. Then Drag & Drop the content folder of XeXMenu live version in the data partition. Be sure it’s like this (for FSD Installer you will have a F5D22702 folder instead of C0DE9999. Close the apps, plug the USB Key on your Xbox, you will see XeXMenu or FSD installer on your Game Library https://www.youtube.com/watch?v=XQnZkqY1PQs
i spend 1 hour for shitty usb are not recognize after the injection dont waist you time JUST UPLOAD XeXMenu v1.2 to /Hdd1/Content/0000000000000000/ with filezilla or flash fxp close down your firewall and press right joystick to have the ip of your xbox.