Most Mac users rely on iPhones and iPads to take photos and store them in the Photos app, which happens automatically for those who use Apple’s iCloud Photos syncing service. But what if you want to import photos from a device other than an iPhone or iPad—say a Samsung smartphone running Android—and what if you don’t want those images in Photos? Turn to Apple’s Image Capture app, which has shipped with macOS for ages and is stored in your Applications folder’s Utilities folder. To use it, connect your device to your Mac via USB, launch Image Capture, and click the device in the sidebar. Choose a destination from the Import To pop-up menu, and then either select some photos and click Import or click the Import All button to get everything.
Did you know that the word for the irrational fear of Friday the 13th is paraskevidekatriaphobia? Neither did we, but what that supposedly unlucky day is good for—whenever it rolls around—is reminding us to test our backup systems. If something does go wrong, backups can save your bacon, but only if they’re actually working. So on Friday the 13th this month, take a few minutes to make sure you can restore files from Time Machine, see if you can boot from your bootable duplicate, and generally verify that your data really is being backed up successfully. And if you’ve already missed the 13th, today is a fine day to make up for it with a quick test.
In previous versions of iOS, a scroll bar would appear on the right edge of the screen while you were swiping through a long Web page, email message, or document. But the scroller was merely an indicator of where in the page you were and how much content there was (the bigger the scroller, the less content). In iOS 13 and iPadOS 13, however, Apple has made the scroll bar more helpful, and you’ll want to use it to scroll long pages more quickly than you can with swiping. To use the scroll bar, swipe slightly to make it appear, press and hold the scroller, and drag it to scroll. The only hard part is that it can be tricky to grab since it disappears a few seconds after you stop scrolling, and it’s a thin target to hit with a thick finger. But give it a try since it makes scrolling in long pages so much easier.
With the iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max, Apple changed the way the Camera app’s shutter button works in ways that could cause confusion. Tapping it once still takes a single still photo, but if you press and hold on the shutter button, it now captures a quick video. (Previously, pressing and holding on the button took photos in burst mode; to do that on the iPhone 11 models, slide the shutter button to the left.) Once you’ve started taking a quick video, slide your finger to the right to lock recording, so you don’t have to keep holding the button down. Tap the white shutter button to take a still image while recording; tap the red record button to stop recording. For even easier quick video recording, press and hold either of the volume buttons; a single press still takes a photo. Note that quick videos always record with mono sound and at a resolution of 1920-by-1440; for stereo sound and the resolution set in Settings > Camera, use the Camera app’s Video mode.
We have an embarrassment of riches when it comes to the number of ways we can move data between Macs. You can send files via AirDrop, attach them to an email message, put them in a Messages conversation, turn on and connect via File Sharing, or use Dropbox or Google Drive as an intermediary, to name just a few of the more obvious approaches.
But what if you have a lot of data—say tens or even hundreds of gigabytes—to transfer from one Mac to another? The techniques listed above might work, but we wouldn’t bet on it. If you had an external hard drive with sufficient free space handy, you could copy all the data to it from one Mac and then copy the data back off to another Mac. To cut the copy time in half, though, try Target Disk Mode instead.
What Is Target Disk Mode?
Target Disk Mode is a special boot mode that enables nearly any Mac to behave like an external hard drive for another Mac. You can connect the Macs using Thunderbolt 3, USB-C (on the MacBook), Thunderbolt 2, or FireWire. It’s best to use the same port on both Macs if possible, but it’s usually fine to use adapters, such as Apple’s Thunderbolt 3 to Thunderbolt 2 adapter for connecting newer and older Thunderbolt-capable Macs.
Target Disk Mode is nearly universal, easy to set up, and one of the fastest methods of moving files between Macs. Let’s unpack that statement:
Nearly universal: Every Mac sold in the last decade supports Target Disk Mode, so you can be sure it will work with any modern Mac.
Easy setup: Because Apple has baked Target Disk Mode into the Mac firmware, the version of macOS is irrelevant. There’s no software to configure nor any permissions to worry about. Putting a Mac into Target Disk Mode merely requires holding down the T key during boot or clicking a button in the Startup Disk preference pane.
Speed: Because Target Disk Mode on modern Macs relies on a Thunderbolt connection, and you’re connecting one Mac directly to another, you’ll get the fastest transfer speeds in the fewest steps.
You can also use Target Disk Mode on an old Mac to set up a new Mac with Migration Assistant, repair its drive using Disk Utility, or possibly even boot another Mac with it. Booting one Mac from another in Target Disk Mode works best if the two Macs are of the same model and vintage and are running the same version of macOS, but it might work even if those facts aren’t true.
To use Target Disk Mode to copy data between Macs, follow these steps:
On the source Mac, either:
Restart the Mac, and once it starts booting, hold down the T key until you see the Target Disk Mode screen with a bouncing Thunderbolt logo.
Open System Preferences > Startup Disk, click the lock button and enter your administrator credentials, click Target Disk Mode, and then click Restart.
Connect the source Mac to the destination Mac with an appropriate cable. The source Mac’s drive appears on the destination Mac’s Desktop like an external hard drive. (If the source Mac is running macOS 10.15 Catalina, two drives will appear on the destination Mac’s Desktop: DriveName and DriveName – Data. The first is Catalina’s system volume; you’ll find all your files and folders on the Data volume.)
Move or copy files as desired.
When you’re done, press and hold the power button on the source Mac for a few seconds to shut it down.
If you have hundreds of gigabytes to transfer and either of your Macs is a notebook, it’s best to connect it to power to avoid draining the battery before the copy finishes.
Two things can complicate putting a Mac into Target Disk Mode: FileVault and a firmware password. Both are easily worked around:
If the Mac is encrypted with FileVault, hold down the T key at startup like normal, but then enter the administrator password for that Mac to complete the switch to Target Disk Mode.
If the Mac has a firmware password, press the Option key while the Mac is starting up and enter the firmware password when prompted. Then press the T key to continue booting in Target Disk Mode.
Also, the Apple USB-C Charge Cable that comes with the power adapter for the MacBook, MacBook Air, and MacBook Pro models doesn’t support Target Disk Mode, so if that’s the cable you were planning to use, sorry, but you’ll need to buy a real Thunderbolt or USB-C cable.
Despite these small caveats, Target Disk Mode is one of the unsung innovations that has made Macs easier to use for decades, and it’s well worth keeping in mind whenever you need to move lots of data between machines.
Accidents, particularly those involving automobiles, are all too common, and while no one plans to be in one, you can prepare for the eventuality. If you end up in a state where you can’t speak with emergency responders or are too shaken up to share your details clearly, your iPhone can provide them with essential medical information. Emergency responders are trained to know how to access these details.
Apple makes this possible via the Medical ID feature of the Health app, which you can use to record medical data and emergency contact information (this is sometimes referred to as “ICE information,” where ICE stands for “In Case of Emergency”). Once you’ve entered all this information, emergency responders can use your iPhone to learn about your medication allergies and other conditions, plus contact your family. This data could also help a Good Samaritan return a lost iPhone. (Unfortunately, the Health app isn’t available on the iPad.)
To set up or edit your Medical ID, follow these steps (in iOS 13; they’re slightly different in earlier versions of iOS):
Open the Health app and tap the Summary tab at the bottom.
Tap your profile picture in the upper-right corner.
Under Medical Details, tap Medical ID.
Tap Edit in the upper-right corner.
Make sure the Show When Locked switch is on.
Enter all the relevant details about your medical conditions, medications, allergies, and so on.
Specify one or more emergency contacts. These must be people in the Contacts app with phone numbers; if the right people aren’t there, add them first. You can’t select your own card in Contacts, so consider making one for a fake person called “If Lost, Please Call” and listing a different phone number at which you can be reached.
Hopefully, you’ll never have to use someone else’s Medical ID information, but you should know how to do so. You should also teach family, friends, and colleagues how to find and use this information. Should you come across a bicyclist who has had a bad crash or a similar situation, follow these steps:
With a locked iPhone that uses Touch ID, press the Home button to display the Passcode screen. For iPhones with Face ID, press the side button and swipe up from the bottom.
On the Passcode screen, tap Emergency in the bottom-left corner to move to the Emergency screen. If needed, call 911 from this screen by tapping Emergency Call.
Again at the bottom left, tap Medical ID to display the Medical ID screen, complete with all the details that person entered into the Health app.
From that screen, you can share the information with EMTs or other first responders so they’re aware of any serious conditions or allergies that would affect treatment. You can also call any emergency contacts listed by tapping their numbers.
Please, enter your medical and emergency contact details into the Health app right now, and spread the word to everyone you know. It could save your life, or help you save someone else’s!