Why isn't my MacBook Working?

Question

MacBook Pro（13 英寸，配备 Retina 显示屏2015 年初期）

2015年3月更新的 13 英寸 MacBook Pro 配备 Retina 显示屏，型号为A1502，采用第五代英特尔酷睿 i5 和 i7 处理器，并配备 Force Touch触控板。

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Hey.

-Startup is with chime, so I hear the chime.

-Tried PRAM and SCM reset.

-The screen will not show any image, but it turns into a "lighter" black, and some dead pixels are shown.

-It will show a image on a monitor with HDMI, but the loading bar on the startup screens is just halfway and stuck.

Tried to change the logic board, but nothing major different...

Please help

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Did you have some liquid spilled into your system?

mayer @mayer 声誉积分: 689.5千 3.8千 1.1千 2.6千 · Answer 1 · 2018-03-25T17:48:46-07:00

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I would first try an Internet Reinstall of the system. Here's how to do it:

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