My lenovo T450s ran out of battery overnight. When I tried to start the computer, nothing happens. Light of F1 lights up, if I connect it to the charger the power light blinks. When i try to start it it beeps twice. Short beeps. I tried everything, removing external battery, disconnecting internal battery, plugging, unplugging.. nothing works. Does anyone know where the issue could be?
System Configuration: Android / Chrome 78.0.3904.108