Announcement: Upgrade to macOS Catalina

Experience dedicated apps for music, TV, and podcasts, plus smart new features like Sidecar. Learn how to upgrade >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Question:

Question: Macbook pro stuck at boot screen with apple logo and 100 percent progress bar.

Some keys i.e 4RFV not working on my macbook pro keybaord and sometimes the keys get pressed automatically. While the laptop was working fine with onscreen keyboard, yesterday after turning it off, it is now stuck at boot screen with apple logo and 100 percent progress bar. Even while restarting, it shows only 100 percent progress bar within 2-3 seconds of turning on and is stuck there.


I cannot start recovery as R is not working.. I have made a bootable el capitan usb to reinstall the operating system but even after pressing option, it is not going to the disk utility screen.


I tried taking the hard disk cable out connected to logic board and then starting the laptop with bootable usb plugged in and option key pressed, it still shows apple logo with 100 percent progress bar.. confusing...

If i donot press any key and turn it on with bootable usb plugged in, again it shows apple logo and gives some error message for a second and restarts again.. below is the screen shot.. Please help!!

User uploaded file

Posted on

Reply
Question marked as Apple recommended

Aug 31, 2017 11:42 AM in response to Mahasingh55 In response to Mahasingh55

Please try the following, in order. Stop at the step where the issue is resolved:

  1. Reset your Mac's SMC.
    • Reset the System Management Controller (SMC) on your Mac - Apple Support
    • Fans, keyboard backlight, status indicator, battery indicator, display backlight, power button, close/open the lid, sleep or shut down, battery doesn't charge, MagSafe indicator light incorrect status.
    • Hold down the <shift><control><option> keys, and then, press the power button. Hold all of them for, at least, 10 seconds.
  2. Reset your Mac's NVRAM.
    • How to reset NVRAM on your Mac - Apple Support
    • Resets sound volume, display resolution, startup-disk selection, time zone, & kernel panic information.
    • <option><command><P><R>
  3. Boot up your Mac in Safe Mode.
  4. Boot up your Mac in Recovery or Internet Recovery Mode.
    • About macOS Recovery - Apple Support
    • When at the initial Recovery Mode screen, select the Disk Utility option.
    • Run Disk Utility > First Aid to verify the startup disk's integrity.
  5. Boot up your Mac in Single-User Mode.
    • How to start up your Mac in single-user or verbose mode - Apple Support
    • At the command prompt, type: /sbin/fsck -fy <return>

      If fsck makes any repairs, you will get a message that says: Files System was modified. If you do, run fsck again until the "The volume <volumename> appears to be OK."

    • Type reboot at the prompt to exit Single-User Mode.
  6. Run either Apple Hardware Test (AHT) (pre-2013 Macs) or Apple Diagnostics (2013+ Macs) to uncover any hardware issues with your Mac.
  7. Make a Genius Bar appointment at your local Apple Store.

There’s more to the conversation

Read all replies
Question marked as Apple recommended

Aug 31, 2017 11:42 AM in response to Mahasingh55 In response to Mahasingh55

Please try the following, in order. Stop at the step where the issue is resolved:

  1. Reset your Mac's SMC.
    • Reset the System Management Controller (SMC) on your Mac - Apple Support
    • Fans, keyboard backlight, status indicator, battery indicator, display backlight, power button, close/open the lid, sleep or shut down, battery doesn't charge, MagSafe indicator light incorrect status.
    • Hold down the <shift><control><option> keys, and then, press the power button. Hold all of them for, at least, 10 seconds.
  2. Reset your Mac's NVRAM.
    • How to reset NVRAM on your Mac - Apple Support
    • Resets sound volume, display resolution, startup-disk selection, time zone, & kernel panic information.
    • <option><command><P><R>
  3. Boot up your Mac in Safe Mode.
  4. Boot up your Mac in Recovery or Internet Recovery Mode.
    • About macOS Recovery - Apple Support
    • When at the initial Recovery Mode screen, select the Disk Utility option.
    • Run Disk Utility > First Aid to verify the startup disk's integrity.
  5. Boot up your Mac in Single-User Mode.
    • How to start up your Mac in single-user or verbose mode - Apple Support
    • At the command prompt, type: /sbin/fsck -fy <return>

      If fsck makes any repairs, you will get a message that says: Files System was modified. If you do, run fsck again until the "The volume <volumename> appears to be OK."

    • Type reboot at the prompt to exit Single-User Mode.
  6. Run either Apple Hardware Test (AHT) (pre-2013 Macs) or Apple Diagnostics (2013+ Macs) to uncover any hardware issues with your Mac.
  7. Make a Genius Bar appointment at your local Apple Store.

Aug 31, 2017 11:42 AM

Reply Helpful

Sep 4, 2017 2:03 PM in response to Mahasingh55 In response to Mahasingh55

Same thing happened to me. Every one of the aforementioned "fixes" did not fix anything.


A genius from a Genius Bar at an Apple Store determined that the GPU was fried and the logic board may have needed replacing too. I was also given the bad news that Apple no longer services or carries parts for an older (my) model (15-inch, Early 2011 MacBook Pro) for logic board issues and that if they did, it would probably cost around $500 to fix.


After searching the internet for days, I found a company in Alabama that does logic board repairs very reasonably. They determined that the GPU was bad and when replaced the logic board worked fine after testing. It cost me $429 (with the $89/UPS Next Day Air shipping option).

I'm happy to say that my MBP is back and working nicely as my two-fold functioning Master in a Master/Slave set-up in my music studio as well as being my portable studio for external writing/recording sessions. Also need it because it has the internal DVD drive along with 16 GB memory and a 1TB HD... hard to find THAT for $500 (in good condition)!


Sorry to bring a dark cloud to the picnic but it's good for you to know...

Sep 4, 2017 2:03 PM

Reply Helpful (1)
User profile for user: Mahasingh55

Question: Macbook pro stuck at boot screen with apple logo and 100 percent progress bar.