Question my laptop doesn't turn on

[RNA28]

my laptop doesn't turn on sometimes. i have to remove the battery and hold the power button for 15 seconds and turn on . and it doesn't work all the time too. and most of the times when i try to plug a usb , laptop turns off unexpectedly. please help

 

[hang-the-9]

Need more details, brand/model of the laptop, did anything happen before this started? Seems like a failed motherboard, usb shorts can cause the system to turn off or reboot, not being able to turn on is also a sign of a bad motherboard.