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A1708/EMC 3164—于2017年6月上市,这台入门级MacBook Pro保留了它的传统功能键(相对于OLED触控条)。

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Startup/wake from sleep issues. Even Apple can't figure it out.

Hi,

My MacBook Pro freezes up after it is shut down or put to sleep for a timespan of over 20 minutes. When it freezes up after sleep, I need to power it down using the power key and then power it back on at which point everything works fine until I put it back to sleep again.

When I try turning it on after a shutdown, often it turns on but sometimes the backlight will come on and then nothing will happen and I will need to power it down again and turn it on again.

In both cases, half the times a flashing folder will appear and half the time nothing will appear on the screen.

I’ve taken it into an Apple Store and they ran all kinds of hardware diagnostics and said everything seems fine, including disk and logic board.

I’ve reset the NVRAM and SMC, and done two clean installs of MacOS including one of these was performed by Apple at the store. Everything was erased both times.

I’m really stumped! Apple said they will review some logs they made me take and get back to me in a week but this is really annoying and I’d like to figure this out sooner.

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I had this issue before with a customers MacBook Pro.

After all the troubleshooting I did it came down to a defective logic board. I ended up replacing it.

Regardless, Apples hardware diagnostics kind of suck. There is no diagnostic software for logic boards. They test other parts. RAM and Drive being the majority of the test. All the hw test does for your processor is make sure the socket recolonizes it is connected. Some other advice I can offer is check your power settings.

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