The really important question
What do Samsung do when someone returns a bricked laptop (a) in and (b) out of warranty?
You can tell the manufaturers you want to do business with from the ones you don't, by how they handle a problem such as this one. You don't want to be told to <go away>, and to have to sue your supplier for supplying goods that were not fit for purpose. Which defition this bug amply fulfills: the machine claimed to offer UEFUI boot, but broke the specification in a way that causes catastrophic failure.
I'm asking, not suggesting anything. I really don't know.