Here are some troubleshooting steps you can try if your MacBook is not turning on:
1.Check the power source: Make sure the power source (e.g., wall socket, power strip, or battery) is functioning properly and your MacBook is properly connected.
2.Reset the SMC (System Management Controller): The SMC controls power functions on your MacBook. Try resetting it by shutting down the MacBook, holding down the Shift + Control + Option keys, and then pressing the Power button.
3.Charge the battery: If your MacBook is not turning on and the battery is low, try plugging it in to charge for at least an hour before attempting to turn it on again.
4.Perform a hard reset: Try performing a hard reset by shutting down your MacBook, holding down the Command + Control + Power buttons for 10 seconds, and then releasing them.
If these steps don't resolve the issue, it may be necessary to take your MacBook to an Apple Store or authorized repair center for further diagnosis and repair.