Daughter dropped her laptop on its side where the power cord connector enters the Laptop. Battery ran down and would not charge. The laptop is now dead. Power cord reads only 13.1 vdc when it should be 19.5vdc. Could this reduction in voltage be the reason why it wont start the computer or charge the battery. When all is plugged in, and I press the power button on the computer to start it, I see three flashes of the white power led at the power connector on the laptop. HP 15-P030NR