My MacBook Pro will not turn on

Begin with If your Mac doesn't turn on.

Read and follow each of its steps, including all the links within it, all the way through and including Step 4, which directs you to:

If your Mac starts up to a blank screen

Read and follow each of it steps also, all the way through and including the end, which takes you to:

"If you still need help, please contact Apple Support."

My son had the same problem with his 2018 MBP; it’s battery was overheating, and it’s Logicboard was damaged. Had to replace every thing except the display!