[Usbflasher]

For amazon.com its a well known method. You cant do it on your own because you would need an UPS panel (which is patched at the moment). Amazon will get the status that the item is getting returned to them. They are already trying to implement a fix for it.
The same thing is possible for DHL even without a panel, but you wont find someone who is going to tell you the method. The method costs about 25.000€ (only refunder with a service would buy it)