Last night, I sat down at my desk, and went to log into my SP3. It was already on but on the lock screen. I typed my PIN, but oddly, the login screen was asking for my password instead. I rebooted it from the login screen, just to see of the PIN login would come back. After that, nothing. Just a black screen.I've turned it off and back on a hundred times. I get keyboard lights every time, and 1 out of 20 times, I get the "Surface" logo on the display, then it gives a Recovery blue screen "There are no more Bitlocker recovery options on your PC." It says to "Press the Windows key for UEFI Firmware Settings", but that does nothing. Soon, the Surface just turns off.