How to troubleshoot car not starting?
 

I have a Toyota Camry SE 2011 that will not start. When opening the door, there is no light. It seems like the battery gave up. However, when I tried to jump start, it does not work either. Is it still a battery issue or something else? What else can I try before purchasing a new battery?

Did you one day open the car door and their was no door light and no response to the ign key?

Does anything electrical work?

Do you have a voltmeter?