After a day of use, I went to wake my Tab S8 from sleep. Nothing came up, however. The backlight is definitely on and will turn off with a press of the power button, but I can't get it to do anything else. Even the vibration from it acknowledging that the volume has been turned all the way down and into vibration mode is not working. Perhaps shutting it down would help? It had about 50% when this first happened, and I've had it on for the past 7 or so hours, and it still has not died. Help!