If your MacBook Pro M4 still doesn't boot into safe mode after trying all the fixes, there are several additional steps you can take to troubleshoot and potentially resolve the issue:
1. Reinstall macOS
- Why It Helps: Reinstalling macOS can resolve issues caused by corrupted system files or software conflicts.- How to Do It:
1. Boot into Recovery Mode: Shut down your MacBook. Press and hold the power button until you see the startup options screen. Click on "Options" and then "Continue" to enter Recovery Mode.
2. Reinstall macOS: In Recovery Mode, select "Reinstall macOS" from the Utilities window. Follow the prompts to complete the installation.
2. Check for Hardware Issues
- Why It Helps: Sometimes, hardware problems can prevent safe mode from working.- How to Check:
1. RAM and Storage: Ensure that your RAM and storage are properly seated and functioning.
2. External Devices: Disconnect all external devices except the keyboard and mouse to rule out interference.
3. Run a Diagnostic Test: Use Apple's built-in diagnostic tools or third-party software to check for hardware issues.
3. Reset NVRAM and SMC (If Applicable)
- Why It Helps: Resetting these components can resolve issues related to system settings and hardware management.- How to Do It:
1. Reset NVRAM: Shut down your MacBook. Press the power button, then immediately hold down the Command + Option + P + R keys. Release them when you hear the boot chime for the second time.
2. Reset SMC (For Intel-based Macs): This step is not applicable for M1 or newer Macs. For older models, shut down your MacBook. Press the left Option + Control + right Shift keys and hold them for about seven seconds. Then press the Power button without releasing the other keys. Hold all keys for another seven seconds, then release and wait about 20 seconds before powering on.
4. Contact Apple Support
- Why It Helps: If none of the above steps work, there might be a deeper hardware or software issue that requires professional assistance.- How to Contact: Visit Apple's official support website or visit an Apple Store for further diagnosis and repair options.
5. Consider a Professional Diagnostic
- If you're not comfortable with these steps or if they don't resolve the issue, consider taking your MacBook to a professional repair service or an Apple authorized service provider for a detailed diagnostic and repair.These steps should help you troubleshoot and potentially fix the issue preventing your MacBook from booting into safe mode. If the problem persists, it may indicate a more serious hardware or software issue that requires professional attention.
Citations:[1] https://www.easeus.com/computer-instruction/mac-wont-start-in-safe-mode.html
[2] https://support.apple.com/guide/mac-help/if-your-mac-doesnt-start-up-as-expected-mchlp2889/mac
[3] https://recoverit.wondershare.com/mac-problems/mac-wont-start-in-safe-mode.html
[4] https://nordvpn.com/blog/mac-safe-mode/
[5] https://cleanmymac.com/blog/mac-wont-boot-in-safe-mode
[6] https://www.youtube.com/watch?v=0kcoH7vDW5k
[7] https://support.apple.com/guide/mac-help/start-up-your-mac-in-safe-mode-mh21245/mac
[8] https://discussions.apple.com/thread/255377427