If your MacBook Pro M4 remains unresponsive after a hard reset, there are several steps you can take to troubleshoot and potentially resolve the issue:
Check Power Connections
First, ensure that your MacBook's power cable is undamaged and securely plugged into both your MacBook and a working electrical outlet. Try using a different power adapter or cable if possible[3].Unplug Accessories
Disconnect all accessories, including USB drives, printers, and mobile devices, to rule out any issues caused by external devices. Then, attempt to turn on your MacBook again[3].Boot into Recovery Mode
For M1-based Macs like the M4, press and hold the power button until the Startup Options window appears. Select your startup disk and hold the Shift key to boot into Safe Mode. If you can access Recovery Mode, you might be able to repair your startup disk using Disk Utility or reinstall macOS[1][2].Connect to an External Display
If your MacBook turns on but the screen remains black, connect it to an external display to see if the issue is with the internal display. If the external display works, it could indicate a problem with your MacBook's screen[4].Reset System Management Controller (SMC) - Not Applicable for M4
Since the MacBook Pro M4 uses Apple Silicon (M1-M4 chips), resetting the SMC is not applicable. This option is only available for Intel-based Macs[5].Reset NVRAM/PRAM - Limited Functionality on M1 Chips
While M1 Macs do not support traditional NVRAM/PRAM resets like Intel-based Macs, you can view and customize some settings using terminal commands. However, this is not likely to resolve startup issues[2].Seek Professional Help
If none of these steps resolve the issue, it may be necessary to contact Apple Support or visit an Apple Store for further assistance. Your MacBook might require hardware repairs or diagnostics that cannot be performed at home[3].Citations:
[1] https://www.cleverfiles.com/howto/recover-data-dead-macbook.html
[2] https://www.lappymaker.com/blog/macbook-pro-not-turning-on/
[3] https://support.apple.com/en-us/102623
[4] https://www.reddit.com/r/mac/comments/11qrnx4/macbook_air_m1_became_unresponsive_just_a_black/
[5] https://www.youtube.com/watch?v=kmvwPsoiVP0
[6] https://discussions.apple.com/thread/251220873
[7] https://support.apple.com/guide/mac-help/shut-down-or-restart-your-mac-mchlp2522/mac
[8] https://community.wd.com/t/mac-not-mounting-wd-elements-drive/282505