Broken hard disk permissions are conflicting with user accounts.The corrupted cache of critical system files.

Incompatible login items related to application interrupting the Mac boot process.Broken application affecting the system startup.It's a display issue instead of a power problem.There isn't enough battery left on the Mac.If MacBook won't start or boot, the main reasons might be:

How to Recover Data from MacBook That Won't Startīefore we step down to the Solutions, you must understand why the problem arises in MacBook.

Solution 10: Reboot Mac into Recovery Mode.

Solution 9: Start Mac Using Another Account.

Solution 7: Boot MacBook Pro in Safe Mode.

Solution 6: Reset the System Management Controller (SMC).

Hold the keys down until the computer restarts and you hear the startup sound for the second time.Ħ. Press and hold the Command-Option-P-R keys.ĥ. You will need to hold these keys down simultaneously in step 4.ģ. Locate the following keys on the keyboard: Command, Option, P, and R. Hold these keys and the power button for 10 seconds.ģ If you have a MacBook Pro with Touch ID, the Touch ID button is also the power button.ĥ Press the power button again to turn on your Mac. How to fix MacBook beeping 3 times Try resetting the SMC Ģ After your Mac shuts down, press Shift-Control-Option on the left side of the built-in keyboard, then press the power button at the same time. If the problem persists, visit an Apple professional immediately or contact Apple Support directly. You may have recently replaced or just upgraded the RAM memory on your MacBook Air or MacBook Pro computer and it was not installed properly. If your MacBook Air or MacBook Pro computer is broadcasting 3 successive beeps at intervals of approximately five seconds, it means that RAM memory did not pass the data integrity check. The beeping indicates that there is an issue with your notebook’s RAM. Why MacBook beeping 3 times and won’t startup?

Why MacBook beeping 3 times and won’t startup?.

Macbook pro 3 beeps after startup chime