Yes, Its Fixable. First, Once the screen goes black, instantly hold down volume up and down and the power button at the same time, then release power button at the “powered by android logo” and the screen should go black and there should be a red led, and that means your halfway there to getting it fixed, now just wait for the led to shut off, because that means that its fully drained to 0%. Now Plug it in to anything, and when it says battery critically low, ignore it and let it bootloop, after a few minutes it should boot up and start working again. - Love, Brayden.