One morning, my aspire S7-392-6807 would not turn on. Pressing the power button resulted in 5 flashes of orange LEDs, then stopped. I did the tighten screw in back suggestion, tested my AC adapter with a multimeter (it tests fine), but no luck. For one brief moment I got a blue led and the windows 10 screen but then quit immediately and went back to black screen...I did see the battery indicator at the time as close to 0% charged, but that should have no effect when plugged into the wall even if battery is dead , right ? Any suggestion on what to do next appreciated. Calls to ACER support have been useless...asking me to take it the Office Depot ! :-(