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Change your display's refresh rate

• New Apple Macbook Pro 2019
• Powerbook Pro

The 16-inch MacBook Pro has a Retina display with an adjustable refresh rate.

PowerBook Repair. Apple's line of PowerBook laptops was intended for the professional and power users. The PowerBook line includes the PowerBook 100, Duo, 500, and 5300 Series; the PowerBook 1400, 2400, 3400; the PowerBook G3, G4 Titanium, and G4 Aluminum. May 07, 2020.

Use the Touch Bar

The Touch Bar shows you intuitive shortcuts and app controls when you need them.

Use Touch ID on MacBook Pro

With Touch ID on your MacBook Pro, you can quickly unlock your Mac and make purchases using your Apple ID and Apple Pay—all with your fingerprint.

Find adapters for Thunderbolt 3 (USB-C) ports

If the cable from your external display, hard drive, camera, or other device doesn't connect to your Mac, you might need an adapter.

Use the Force Touch trackpad

Learn about the Force Touch trackpad, its features, and how to use it.

Check your startup security

Use Startup Security Utility to make sure that your Mac always starts up from your designated startup disk, and always from a legitimate, trusted operating system.

New Apple Macbook Pro 2019

Use True Tone

True Tone makes the images on your Retina display appear more natural.

Resources

Get AppleCare+ for Mac

With AppleCare+, you’re covered. Get accidental damage coverage and 24/7 priority access to Apple experts.

Have a question? Ask everyone.

The members of our Apple Support Community can help answer your question. Or, if someone’s already asked, you can search for the best answer.

Tell us how we can help

Mac computers at best buy. Answer a few questions and we'll help you find a solution.

1. Press the power button on your Mac. Every Mac has a power button, usually marked with a power symbol . Then check for signs of power such as these:
   • Sounds, such as from a fan, hard disk, or other startup sound
   • Lights, such as from a backlit keyboard, Caps Lock key, or sleep indicator light
2. If your Mac has no signs of power, start by making sure that it's receiving power:
   • Make sure that your power cable is undamaged and securely plugged into your Mac and a working electrical outlet. If you're not sure about the outlet, test it with a lamp or other device.
   • If you're using a Mac notebook, make sure that it's using the correct power cable and adapter, and that it has been plugged in for about 5 minutes, which is long enough to provide a usable battery charge. Learn how to troubleshoot USB-C power adapters or MagSafe power adapters.
   • If you're using an external display, make sure that it's turned on, securely connected to your Mac, and isn't experiencing any video or display issues.
3. Then try these solutions, whether or not your Mac has signs of power:
   • Press and hold the power button on your Mac for 10 seconds, then press it again.
   • Reset the System Management Controller (SMC).
   • Make sure that your display's brightness is turned up. Mac notebook computers have a Brightness Up key on the built-in keyboard.
   • Unplug all accessories from your Mac, including printers, drives, USB hubs, and mobile devices. (You could have an issue with one or more of those devices or their cables.) Once more, press and hold the power button for 10 seconds, then press it again.
4. If your Mac has signs of power but the screen remains blank, try the steps for when your Mac starts up to a blank screen.

Powerbook Pro

If you still need help, please contact Apple Support.