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Best Guideline to SOCD Report Detected: (Ap watchdog expired)

Updated on Friday, June 14, 2024

iBoysoft author Vain Rowe

Written by

Vain Rowe
Professional tech editor

Approved by

Jessica Shee


Summary: SOCD report detected: (Ap watchdog expired) error code always happens to you unexpectedly. Don't worry, this article from iBoysoft explains to you what the SOCD report detected: (Ap watchdog expired) error code is. Meanwhile, you can get practical ways to fix this error code with specific steps in this post. 

SOCD Report Detected Ap watchdog expired error code on Mac

What is SOCD report detected: (AP watchdog expired)? I have only had my Mac Mini a few days, and it has the latest Big Sur updates. Yesterday, while watching a YouTube video, my Mac Mini restarted, and posted an error, “SOCD report detected: (AP watchdog expired)”. Any ideas to fix it?

The SOCD report detected: (Ap watchdog expired) error code is not a common thing on Mac. You can find this popup follows your Mac keeps crashing and restarting automatically. It is really a headache scenario because it probably has something to do with your Mac hardware.

But don't let the frustration overwhelm you, this post offers you practical fixes for this error code. Meanwhile, you can figure out why the SOCD report detected: (Ap watchdog expired) error code hits your Mac also.

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What is the SOCD report detected: (Ap watchdog expired) on Mac?

Some MacBook Air, MacBook Pro, and iMac users point out that their Macs experience the SOCD report detected: (Ap watchdog expired) notification when they're playing video on YouTube or having an external hard drive inserted into their Mac.

Actually, the SOCD report detected: (Ap watchdog expired) is a popup appearing after Mac's unnormal shutdown and restart. Factors that generate this awful error code are non-uniform, you can get a rough understanding of them first.

  • Poor connection between external drives and Mac
  • Tiny errors in the inserted external hard drive
  • macOS incompatibility with Mac hardware
  • Mac motherboard or chip hardware failure

Most reasons mentioned can be fixed with easy and simple operations. But if the SOCD error code is caused by a hardware issue, this article reminds you of the necessary tips to ask for Apple Service Center's professional help.

Let more people know about this useful tutorial!


Things you should do when the SOCD report detected error code occurs

You can never determine what causes your Mac to suffer such a terrible condition. It might be a slight disk error or a serious hardware failure. 

Facing this, no matter if it happens usually or occasionally, go report to Apple Support immediately and leave a record of the occurrence of this phenomenon. This operation may save you money when you need to replace the motherboard or chip when the warranty is expired. 

Moreover, it is crucial and advisable to back up Mac files and data immediately when you are struck by this prompt to avoid data loss. You can apply the Time Machine to perform this backup task, here is how to do it:

  1. Insert an empty disk into your Mac.
  2. Click the Apple menu, and select System Preferences.
  3. Locate the Time Machine app, and then click the Select Backup Disk button on the main window.
  4. Select the disk you inserted into and click the Use Disk button to begin the backup process. 
    apply Time Machine to back up your Mac

The backup process depends on your data size, which can take you a long time if you transfer lots of data and files. If the backup disk is full, you're able to transfer Time Machine backup to a new drive

If you are keen on a way to accelerate this backup process, you're recommended to apply the disk clone function of iBoysoft DiskGeeker. It allows you to clone your internal/external hard drive with fast and stable transfer speed, which really saves your precious time.

After you perform a full backup work, you can set to fix this error code with the following tutorial now!

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How to fix the SOCD report detected: (Ap watchdog expired) on Mac?

According to the possible reasons that may result in your Mac suffering SOCD report detected popup, this article offers you respective fixes to deal with this notification. 

Remove all external peripherals

Sometimes, external devices like a mouse, keyboard, eGPU on MacAirPort Time Capsule, and so on may cause your Mac sudden shutdown and pop you this error code. You can just disconnect all the external devices gently and observe if your Mac goes well. If not, keep reading!

Apply a USB hub port

Some Mac users actually find this notification when they have an external disk or SSD directly inserted into Macs. Trapped in this scenario, go ahead to apply a USB port straightforwardly, which is likely to reduce the error prompting on your Mac. After applying a USB port, check if the SOCD report notification stops. If not, check the external disk instead.

Check the external disk

Mac is designed with a wonderful disk check software -- Disk Utility. This excellent can check your disk and repair tiny and slight errors in the disk. If it repairs your disk error well, then abnormal shutdown and the SOCD report detected: (Ap watchdog expired) will disappear themselves.

  1. Launch the Disk Utility on your Mac.
  2. Select the external disk you insert into your Mac.
  3. Click the stethoscope icon on the Disk Utility home window to run First Aid to repair disks on Mac
    Check the external disk
  4. Click the Run button to start the repair, and remember don't do other operations on Mac when First Aid running.

If Disk Utility reports that the operation is successful or has been repaired, you're done. Check if your Mac goes normally. If not, you need to try to boot your Mac in Safe Mode to fix it.

Boot your Mac in Safe Mode

Mac Safe Mode really can settle down certain problems on your Mac, including your Mac running slow with kernel_task high CPU usageMac won't turn on, and Mac keeps crashing and restarting because of SOCD error code. Here is how to boot your Mac in Safe Mode to fix the SOCD report detected error code:

Boot your Mac in Safe Mode

For Intel-based Macs:

  1. Power off your Mac and wait for 10 seconds.
  2. Press the power button to restart your Mac and simultaneously hold down the Shift key. 
  3. Release the Shift key when seeing the login window.

For Apple Silicon Mac:

  1. Shut down your Apple Silicon Mac computer and wait for 10 seconds.
  2. Press down the power button until the startup options and the Options gear icon appear on the screen.
  3. Choose your startup disk.
  4. Hold down the Shift key and click Continue in Safe Mode. Then, release the Shift key.

Booting in Safe Mode takes you longer time than in normal mode because the Mac will check the startup disk directory, which shows you the logic screen or desktop more slowly.

After booting your Mac in Safe Mode, you can check if your Mac still shuts down and starts up automatically. If not, it's lucky because your Mac fixes the SOCD error code itself. If the error code still exists, be patient and try the instructions below.

Install a stable macOS on your Mac

Sometimes, your Mac hardware goes wrong with the unstable macOS beta for unknown reasons, bringing out the bothersome SOCD error code. For example, your Mac hardware has some troubles with the new macOS Ventura beta. In such a case, you need to downgrade macOS Ventura to Monterey on your device.

You can launch the Time Machine app to complete this installation work. Before the macOS 12 reinstallation, note that you'd better get a full backup on your Mac for this process will wipe out everything on your device.

  1. Connect your Time Machine drive to your Mac.
  2. Restart your Mac.
  3. For Apple Silicon Mac: press and hold the Power button until you see the startup screen. Then, choose Options  > Continue.          
    For Intel-based Mac: press and hold Command + R until you see the Apple logo.
  4. Choose Restore from Time Machine Backup, and then tap the Continue button.    
    Install a stable macOS on your Mac
  5. Select your Restore Source, and then click Continue.
  6. Select the backup you want to restore from.
  7. Follow the prompts to complete the reinstallation, then restore your files from your backup drive.

The incompatibility of Mac hardware and software definitely breeds tough issues for your Mac. If you encounter a SOCD problem, steps to upgrade the hardware or downgrade the software are feasible.

If all these approaches mentioned above cannot rescue you from the troublesome problem, it is highly likely that you encounter hardware failure. At this moment, you have to bring your Mac to local Apple Services immediately.

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What to do if you cannot fix the SOCD report detected error code well?

If you're unlucky to encounter the hardware issue, here are tips that you need to care about:

Firstly, take your Mac to the local Apple Service Center ASAP! Please remember to bring all original components that come with your Mac, including the mouse, keyboard, and power cable. The Apple staff, therefore, can figure out the problem more clearly. Meanwhile, you need not fetch them several times.

Secondly, if you need to have your motherboard replaced, please back up your personal data advanced, including the operating system settings, Home Folder on Mac, and the files and documents on Sticky Notes for Mac and Apple Notes. The motherboard replacement work will erase all data on it.

Finally, if the hardware shows no error on the diagnostics, contact Apple Support directly and ask for further solutions.


SOCD report detected: (Ap watchdog expired) error code always follows the unnormal Mac shutdown and restart, making you worried and upset. 

But be easy, this article analyzes to you the possible reasons causing this horrible error code. Meanwhile, you can try the methods provided by this article to fix this nightmare. If you cannot solve this problem, head to ask for professional help from Apple Service Center straightforwardly.

More error codes on Mac? Read the following articles:

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