I think most of us want you to get it working (either by trying to fix it or warranty).
Can you go to the Flash Tool website, and hit the "pencil" and pick "Wipe device" and "flash all partitions" - this will obviously wipe your phone - and this will also reinstall all the firmware and partitions.
I think if this doesn't work, you should try for an advanced RMA. Mention to support you used this tool, and that should be enough to warrant an advanced RMA.
Its this page specifically:
flash.android.com