Originally Posted by ali_ign
That's strange because it worked with no problems for my One X. You could also try THIS
to unlock your bootloader, but the tool does the same steps that you manually did with the previous tutorial.
Maybe you have overlooked some minor detail in the steps. I would recommend starting fresh on a different PC and make sure you have the drivers up to date. If indeed you did everything right, you probably have a faulty device (I really don't think that is the case).