My friend has a Dell laptop that wont power on. We are planning to try using a different charger tomorrow to make sure its not a charger issue, but if it still wont work and its not a charger issue, what steps can we take to try and get it working again? And if nothing works, is it possible to get what ever part thats causing it to be replaced instead of having to buy a new laptop? He just got the laptop a year ago, I'll try to update asap once I get model.