Ooops You don't have a reliable USB connection and it isn't detecting the device is back after a reboot. You previously interrupted the installation instead of completing it. You haven't finished installing the OS and aren't at the point you need to lock. You need to finish installing before locking, and you aren't finished if it's waiting for restart. You haven't given details on operating system, browser, how you have the device connected, etc. so we can't provide specific instructions. You need to fix the USB connection. If you're on a desktop Linux OS with the fwupd bug, don't skip that section.