Knowledge base

About Location Services in OS X and Safari

Posted in Apple Portable Computers

Your approximate location is determined using information from local Wi-Fi networks, and is collected by Location Services in a manner that doesn’t personally identify you.

If you allow third-party applications or websites to use your current location, you are subject to their terms and privacy policy and practices. You should review the application’s or website’s terms, privacy policy and practices to understand how they use your location and other information. Information collected by Apple is treated in accordance with Apple’s Privacy Policy, which can be found at

For information about Location Services on an iPhone, iPad or iPod touch, see this article.

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About Applebot

Posted in Apple Portable Computers

Applebot is the web crawler for Apple, used by products including Siri and Spotlight Suggestions. It respects customary robots.txt rules and robots meta tags. It originates in the net block.

User-agent strings will contain “Applebot” together with additional agent information. For example:

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/600.2.5 (KHTML, like Gecko) Version/8.0.2 Safari/600.2.5 (Applebot/0.1)

If robots instructions don't mention Applebot but do mention Googlebot, the Apple robot will follow Googlebot instructions.

If you have questions or concerns, please contact us at: Apple-NOC “at”

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iMac (27-inch, Late 2012 and later): Installing or replacing memory

Posted in Apple Portable Computers

General Information

The iMac (21.5-inch, Late 2012) and iMac (21.5-inch, Late 2013) has no user-accessible memory compartment. Memory replacement on the iMac (21.5-inch, Late 2012) and iMac (21.5-inch, Late 2013) must be done by an Apple Retail Store or Apple Authorized Service Provider.

iMac (27-inch, Late 2012) and iMac (27-inch, Late 2013) computers have four SO-DIMM DDR3 SDRAM (Synchronous Dynamic Random-Access Memory) slots located in a compartment on the rear of the computer just above the AC power cord receptacle. You can use 4 GB or 8 GB SDRAM SO-DIMMs of 1600 MHz DDR3 memory in each slot. The maximum amount of memory you can install in the computer is 32 GB (an 8 GB SO-DIMM in each slot).

Only use SO-DIMMs that meet certain criteria.

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If photos or video files are missing or checkered in a Motion project

Posted in Apple Portable Computers

If a photo or video file in a Motion project shows checkered rectangles throughout the bounding box, the file is offline. This can happen if you updated your iPhoto or Aperture libraries to Photos for OS X

To show the media file, open iPhoto or Aperture. Then open the app library that contains the photo or video file. Opening the library brings the media file back online so it appears in the Motion project.

Finally, save the Motion project and collect all the project media into a folder so the Motion project has a unique copy of the photo or video.

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If text converted to 3D doesn't appear as expected

Posted in Apple Portable Computers

If you convert text that contains these 2D text attributes to 3D, these attributes aren't converted: 

  • Face attributes: Gradient, Opacity, Blur, Four Corner
  • All Outline attributes
  • Glow attributes: Gradient, Scale, Four Corner
  • Drop Shadow attributes: Gradient, Scale, Fixed Source, Four Corner

Read how to convert 2D text to 3D in Final Cut Pro X, how to convert 2D text to 3D in Motion, and about 3D text controls in Motion.

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If a watermark doesn't appear in a transcoded file

Posted in Apple Portable Computers

If your source file contains:

  • A video watermark effect
  • An In point positioned further from the start of the source file than the length of the watermark effect 

Then you might not see the watermark in the job preview or in the transcoded file. For example, if the source file contains a two-minute long video watermark filter and an In point at 3:00, the watermark might not appear.

To correct this issue, transcode the file twice: once to create a movie that doesn't require an In point, and again to add the watermark. Follow these steps:

  1. Remove the watermark filter from the original source file. Do not remove the In point.
  2. Transcode the batch using a high-quality setting, for example, ProRes 422 HQ.
  3. Create a second batch in Compressor.
  4. Add the transcoded movie to the second batch. 
  5. Add the video watermark to the source file. 
  6. Transcode the second batch. 

The second transcoded file includes the watermark effect. 

To learn more, read about using In and Out points to transcode a portion of a source file and watermark effects in Compressor 4 Help.

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Move your content to your new MacBook

Posted in Apple Portable Computers


If you have a Time Machine backup of your original Mac, you can migrate your content by connecting the external USB drive with the Time Machine backup. This can be a faster way to move your content. If you don't have a Time Machine backup of your original Mac, you can create one

To connect your external USB drive to your new MacBook, you need a USB-C adapter. If you're using a USB-C to USB Adapter to connect your backup drive, make sure your MacBook battery is fully charged before you begin the migration.

These adapters are ideal because they can charge your MacBook and connect your drive at the same time:

Use these steps to migrate content from an existing Time Machine backup stored on a USB drive.

  1. Connect your USB adapter to your new MacBook. Then connect the drive with your Time Machine backup to the USB adapter.
  2. If you just turned on your new MacBook for the first time, follow the onscreen instructions in the Setup Assistant. If you already set up your new MacBook, open Migration Assistant from the Utilities folder.
  3. At the migration screen, select "From a Mac, Time Machine backup, or startup disk," then click Continue. If you're prompted, enter an admin name and password then click OK.
  4. Select the Time Machine backup you want to migrate from, then click Continue. The Continue button is unavailable (dimmed) until you select a source.
  5. Select the specific Time Machine backup you want to migrate from, then click Continue.
  6. If you want to transfer only a portion of an account, deselect anything you don't want migrated. If there's more than one user on your original Mac, click the triangle next to a user's icon and deselect anything you don't want to migrate for specific users.
  7. Click Continue, and Migration Assistant begins transferring files to your new Mac. The amount of time it takes for migration to complete depends on the amount of data being copied and the speed of your backup drive.

After the migration is complete, sign in to a migrated account on your new Mac to see its files.

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If your iMac (2013 or 2014 model) restarts when opening a JPEG image in Finder or Preview

Posted in Apple Portable Computers

If you're using OS X Yosemite v10.10.3 and one of the following iMac models, viewing certain very large JPEG (.jpg) images in the Finder or Preview might cause your iMac to briefly stop responding, display a black screen, and restart to a message that your computer restarted because of a problem. If your iMac doesn't restart, it might instead display the image as an all-gray image.

  • iMac (Retina 5K, 27-inch, Late 2014)
  • iMac (27-inch, Late 2013)
  • iMac (21.5-inch, Late 2013)

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Get help using AirPlay and AirPlay Mirroring on your iPhone, iPad, or iPod touch

Posted in Apple Portable Computers

If you don't see the device you want to stream to

When you tap AirPlay on your iOS device, you should see a list of devices that you can stream content to. If you don't see the device you're looking for, try these steps:

  1. Make sure that the device you want to stream to is plugged in and powered on.
  2. On your Apple TV, make sure that AirPlay is turned on. Go to Settings > AirPlay.
  3. Connect both devices to the same Wi-Fi network.
    On your iOS device, go to Settings > Wi-Fi.
    On your Apple TV, go to Settings > General > Network. If your Apple TV is connected using Ethernet, make sure that it’s plugged in to the router you're using for Wi-Fi.
  4. If you’re using an iPad, scroll up and down in the device list to see all of the available devices.

You can't use AirPlay to stream to content from your iOS device to another iOS device, a Mac, or a TV without Apple TV. 

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