Free download the Mac data recovery software:
Text tutorial on how to fix Mac won’t turn on issue:
If your Mac/MacBook/MacBook air/MacBook pro won’t turn on, please watch the video till the end as we’re going to walk you through 6 effective ways to fix the mac won’t turn on issue and get your Mac working again.
Timestamps:
Way 1: Perform a Power Cycle 1:35s
Way 2: Check Your Adapter and Charging Cable 2:08s
Way 3: Check the Hardware 2:31s
Way 4: Reset the NVRAM 2:58s
Way 5: Reset System Management Controller 3:38s
Way 6: Re-Install MacOS 4:48s
Perform a Power Cycle
Step 1 – Unplug all the power cables and turn off your MacBook Pro or MacBook Air by pressing and holding the “Power Button”.
Step 2 – Continue holding the power button for 10 more seconds and reconnect the cables. Keep pressing the power button for 10 more seconds.
Step 3 – Now, reboot your MacBook again and see if the issue of Mac won’t start up is gone…