Apple’s MacBook is a beautiful piece of hardware as compared to its competitors in the market. It’s insanely fast, user-friendly, safe, organized, and simple to use. The hardware and the software, macOS or MAC OS X, make the machine amazing. However, it is nevertheless a machine and sadly, does indeed malfunction at times. Some issues might not be as significant but if it doesn’t startup or all you see is a spinning wheel, then that’s a serious matter. Today, we look at one of those issues: Mac or MacBook Stuck on Apple Logo.
- Disconnect all the peripherals and restart
- For MacBooks, try disconnecting the charger as well, if possible
- Boot up in Safe Mode
- Repair Disk using Disk Utilities
- Run Apple Hardware Test or Diagnostics
You’re in Boot Loops!
Many Mac users find their machines stuck on the Apple logo or commonly known as boot loop and are usually clueless about it. There is a set of things you can try on your Mac to make it function normally again, or at least figure out what went wrong. This article discusses some basic tricks you can execute on your Mac and one of them, most probably, will work out for you.
Note: boot failures are serious problems. It might be an indication that something is wrong with your system’s hardware. It is a wise practice to backup all your data before you try these steps out.
First, try and boot into your Mac’s Recovery partition by pressing Command + R keys or from a Time Machine backup, if available, by pressing the option key at startup. When the macOS Utilities screen appears, start Disk Utility and follow the on-screen instructions to back-up to an external hard disk.
If you have access to another Mac and both Macs have FireWire or Thunderbolt ports, you can connect them so that one of them appears as an external hard disk on the other in target disk mode. Use the other Mac to copy your problem Mac’s data to another drive. Unfortunately, target disk mode only works with Thunderbolt or FireWire and NOT USB, Ethernet, WiFi, or Bluetooth.
Shutting down your Mac
The first and most essential thing you can do is shut your Mac off. Disconnect all the peripherals that were connected to it externally except those needed to boot the system. Some of our readers even removed their MacBook’s charger! So if your MacBook has sufficient charge, try removing the charger as well.
Booting the system now might result in Mac functioning normally. If it does, any of those peripherals (or a combination) was creating the difficulty.
Try safe mode
If disconnecting peripherals didn’t do the job, you need to get a little technical with your Mac. The most common practice is to boot your Apple in Safe Mode. To boot it in Safe Mode, you’ll need to shut it down if it’s turned on. Once this is done, start it up again while holding the Shift key.
Working in Safe Mode might need some patience and compromise. Safe Mode is much slower than normal mode, and some of the features might not work at all, e.g., connecting to a network, etc. That is probably why it is called safe mode. If the system doesn’t boot in the Safe Mode either, skip this step and jump down to the next tip.
If it does boot, check if your boot volume has 9GB or more space available. You should make at least 9GB space in your boot volume available if it already isn’t. You can do that by emptying the trash and copying some files in another volume. After this, shut the Mac down and reboot normally.
If you had to come on this trick because the first two didn’t work for you, it is certain your Mac has something wrong with its hardware, most probably hard drive.
To command your Mac to resolve some fixable issues the hard drive can face, boot it in Recovery Mode. For that, you’d need to shut it down first. In OS X 10.8 Mountain Lion or advanced versions, pressing and holding the Command and R key together and powering it on again will boot your Mac in Recovery Mode.
Or Try Internet Recovery
If your recovery partition isn’t working, try Internet Recovery which remotely loads recovery from Apple’s servers. With Internet Recovery, reinstall macOS or OS X to troubleshoot problems when your Mac’s startup disk isn’t working. Internet recovery works with new model Macs and some older models, check Apple’s site for compatibility.
Internet Recovery Mode reinstalls the macOS or OS X version that originally came with your computer when purchased. So use Internet Recovery only if your Mac’s internal disk is damaged or otherwise inoperable.
To manually start up from macOS or OSX Recovery over the Internet, hold down Option-Command-R or Shift-Option-Command-R at startup.
macOS (OS X) Recovery over the Internet, the Reinstall macOS utility, and the Get Help Online utility all require an Internet connection.
You will have to go into Disk Utilities once you see a screen named macOS or OS X Utilities. Now that you’re here select your startup volume and hit First Aid and then Repair Disk button. It shows you some issues your volume might have. Keep doing this until it shows none. Else, it might tell you that your drive has malfunctioned and you should replace it. If so, follow your Mac.
Run Apple Hardware Diagnostics!
- Disconnect all external devices except keyboard, mouse, display, Ethernet connection (if applicable.) If you don’t disconnect all devices, you might see an error message when running the test
- Make sure that your Mac is on a hard, flat, stable, well-ventilated work surface
- Shut down your Mac
- Turn on your Mac and immediately press and hold the D key. Maintain this hold until you see the Apple Hardware Test’s icon on-screen, then release
- Or hold down Option-D at startup to startup from the Apple Hardware Test over the Internet
- Select your language and click the right arrow or return key
- To test, tap the Test button, press T, or press Return
- Select “Perform extended testing” to run a more thorough test. The extended test takes longer to complete
- When the test finishes, your test results appear in the lower-right
- To quit Apple Hardware Test, click Restart or Shut Down at the bottom of the window
Some older Macs with startup disk’s that don’t contain AHT automatically startup the Apple Hardware Test over the Internet.
If you’re using OS X Lion 10.7 or earlier and can’t get AHT to start, locate the OS X installation disc named “Applications Install Disc 2.” Insert the disc in your internal CD/DVD drive or external SuperDrive before following the steps above.
If using a MacBook Air (Late 2010), plug the MacBook Air Software Reinstall thumb drive into your USB port before following the steps above.
- Boot into Recovery Mode, if possible (hold the keys CMD-R to start up)
- Navigate to the Utilities menu at the top of the screen
- Choose Terminal from the list
- Enter these two commands in Terminal
- cd /Volumes/Macintosh\ HD/var/db/caches/opendirectory
- mv ./mbr_cache ./mbr_cache-old
- Exit from Terminal
This process forces your Mac to rebuild a file called mbr_cache. It’s basically the cache file for your master boot record–the file that your Mac needs to startup. Be prepared for that first reboot to be extremely slow as the cache rebuild happens.