Top right of all Mac laptops have a power button. The trick is that some of the newer models are not printed on the power button with a power icon. Do not do this because some models have a Touch ID, which can interfere with the reading of the fingerprint.
To open a Mac, press the power button until the Apple logo is displayed so far. When you press the power button, please listen to the voice of the start-up tone or Mac fan. Further, from the backlight (if on a session open) to find the lamp on the keyboard, the Caps Lock or find light (if active).
Mac laptop should not be opened to check the contents of
1. Check the display. There may always be lower display, so press the power button for a few seconds, try to increase the brightness (top left button icons with something that looks like the sun).
2. Disconnect accessories. Mac disconnect all accessories from the inserted connector, comprising a printer, a mobile device, a video display, and USB cable. Try restarting your Mac is not connected these projects.
3. Check the power supply. Check all power connections to ensure that all power had been securely plugged into the MacBook, and the AC power outlet is working.
4. If the battery on your Mac completely out of power, it may take a few minutes to charge the AC power supply before the device does not have enough juice before you can turn on the power.
5. Special power cycle. We will do everything possible. Power cycle mode as follows: unplug the power cord from the Mac (if the battery is removable, it is removed). Press and hold the power button for 10 seconds. The power cord back into the Mac, or for re-install the battery, hold the power button. To keep ten seconds. Release button, then try to start the Mac.
If these fixes do not work, check the list or contact Apple Support. You can also visit the Apple Store Store or Apple Authorized Service Provider for assistance.
How close MacBook
All Mac (laptops and desktops) are closed in the same way: Click the Apple logo at the top left of the screen, then select "shut down."
A warning that your Mac will shut down in 1 minute, so you can save your work to other programs and applications.
Hold down the Command key and select "Off" to bypass a 1-minute countdown and shut down immediately. After closing all applications and programs, your computer should be closed.
If you can not turn off the Mac how to do
有时，应用程序会变得无响应，并使Mac操作系统无法正常关闭。这是“强制退出”无响应的应用程序的方法。
1.单击Apple菜单（左上角），然后选择标记为Force Quit的菜单项。如果您是键盘手，只需按住以下三键组合：Command + Option + Esc，将出现“强制退出”窗口。
2.标题栏中将出现一个带有“强制退出应用程序”的新窗口。有时，操作系统会通过将其放在括号中来帮助确定被卡住的应用程序：无响应
3.单击您认为卡住的应用程序的名称，然后单击“ 强制退出”。一旦您迫使卡住的应用程序退出，请尝试再次关闭。
4.如果强制退出不能解决问题，请按住Mac的电源按钮，几秒钟后，计算机将关闭。不幸的是，如果您必须走这条路，您将丢失所有未保存的工作。
如果上述任何步骤都不能解决与打开或关闭MacBook Pro有关的问题，则MacBook可能需要专业修理。更多Mac软件（https://www.macjb.com/）就在Mac金币下载。