Macbook Reset the System Management controller by pressing the boot button without any reaction

The premise: The computer hardware is good. My computer became like this is I first use the network way to install the system, halfway repeatedly restarted finally led to become a brick.

On this premise, restore the MacBook installation system features:

First of all:

reset System Management Controller (SMC): First turn off the computer, the computer needs to connect the power adapter, and then on the built-in keyboard, simultaneously press (left) shift-control-option   Press the power button, then wait 20 seconds, and then start using.

Reset the computer's RAM: Turn the device off,command+option+ r+p, and press the power button to hear the four start sound and release the hand.

Step Two:

1. Press Command-option-r to start the network recovery operation interface

2. The earth icon appears, select a Wi-Fi network to connect to, and wait to enter the OS X utility interface

3. First, you need to do the erase disk operation

Click to open the Fourth disk utility

Select the primary disk (that is, the first item) on the left internal disk

Wipe it off the top.

Name Macintosh HD

Format OS X extension (journaled)

Scheme GUID partition diagram

Dot Erase

4. After the erase is successful, turn off the disk utility. Back to Utilities

5. Tap the utility second installation

6. Install the path select the internal disk and wait for the installation to succeed.

(The above is the network installation mode, very slow)

USB Stick Installation Method:

1. Prepare a USB flash drive with 8GB or more capacity

2. Download the Apple System

3. Unzip to install OS X Yosemite.app

4. Format the USB flash drive, then find and open "disk Utility" in "Application"->"Utility", select USB drive, partition-select-"mac OS Extension (journaled) in" format "-Select"guid partition table in "Options", then click "OK".

5. Make the Startup disk. Open [Disk Utility], select USB Drive [Restore]-Drag the USB drive to the destination disk-drag install OS X yosemite.app to [original disk]. Click Restore.

6 after making, restart the computer, and then keep pressing the "option" (ALT) button, select the USB flash drive, first erase the entire system disk tool, and then directly install the system to the system disk.

This article is from the "Aolens blocks until those" blog, be sure to keep this source http://aolens.blog.51cto.com/7021142/1868373

Macbook Reset the System Management controller by pressing the boot button without any reaction