Macbook Pro won't start up
My MacBook Pro (13-inch, Early 2011) won't turn on. When I press the power button the startup sound begins, but cuts off in the middle. The screen stays black the whole time.
I tried to reset the PRAM and SMC but not sure if I did it right because nothing changed.
For context, the battery was removed several years ago, but it was working fine (while plugged in to external power) until I tried turning it on a week ago.
Any advice is appreciated!
MacBook Pro