When trying to use a USB key to provison an AMT box i get the following:
Intel ME BIOS Extension login with default password failed
Press any key to continue...
2209 - USB Provisioning Error
I am using the SCS console to create the key. The default password has been changed on the AMT box from admin, but I have reflected this change in the SCS console settings. Also, I have confirmed that the key does have the correct "new" default password by inspecting the .bin file that is created. Just to be clear I have not been resusing the same .bin file, and I have tried two different USB keys.