If your laptop does not turn on, or does not boot when powered on, there are several steps you can take to try and resolve the issue.
# Connect the power cable
# Remove and reconnect the battery
# Drain the computer of electricity
If you have gone through all of the suggested troubleshooting steps listed above, and your laptop still does not turn on, the problem is likely caused by a hardware failure. More in-depth troubleshooting is required and a hardware repair may also be necessary to fix the problem.