OK I have the solution found.
1. First, of course, should be stick to FAT32 USB.
2. Now start your own: XBOX and goes to stores. There press the hard drive with Y. Then delete the system cache. That you do then three times in a row.
3. Now you will remain in the memory menu and press successively LB - RB - X - LB - RB - X. Now ask yourself the Xbox if you really want to delete the updates. Your confirmed that. If they did that drives them down. Your they will start again if they do not start on its own and it will re-update. Wait until it is completed and then to step 4
4. Now that the update is completed on their Xbox from, everything takes off the Xbox. HDMI cable, LAN cable and power cord. The power supply cord you share then in 2 parts. Now you wait until the lamp on the power supply runs out.
5. Now you put everything back together as it was.
6. inserts the USB flash drive while the purely XBOX is still pending. Turns to the XBOX and goes back to memory.
Now with me the USB stick was watching and can be configured. Actually simple but dadrauf one must first come first.
Let me know if it has worked with you.
Regards, Benny.