Hi ParisPTT,
Thank you for using the Apple Support Communities.
We understand that your MacBook Pro isn't starting up and we also see that you've already checked out the Apple Support article If your Mac doesn't turn on.
If your Mac doesn’t turn on, reset the SMC: How to reset the SMC of your Mac. If your Mac is still not turning turn on, "make sure you plugged it into a working power outlet. If you have a Mac notebook, make sure the battery is charged.
- Check power and cables: Make sure the power cord is plugged into the computer and into a functioning power outlet. If you’re using a MagSafe power adapter, the adapter light glows amber if the battery is being charged, and glows green when the battery is fully charged. Be sure to use the power adapter that came with your computer or a compatible replacement adapter. See the Apple Support article Find the right power adapter and cable for your Mac notebook.
- If that doesn’t work, try another power cord or power adapter to test whether the problem is with the power supply or the computer itself.
If you still can’t start up your Mac, it may need to be serviced. See Find how to service or repair your Mac."
See also: If your Mac doesn't start up all the way
Have a nice day.