Chosen Solution
When i turn on my macbook pro, it begin to load up and cuts off before it complete.
@luciofelix3 - The AC charger has a connector which connects to your system this connector is called a MagSafe within the connector is a charging LED:
It will glow either Amber or Green
What is yours doing? Or is yours not lit at all?
Let’s try this restart your system again and this time hold the Option (⌥) key to gain access to the Startup manager. Do you see a bootable OS listed? If you do select it using the keyboard arrows are you able to get to your login window? Reference: Mac startup key combinations
