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发布于 2012 年 6 月, 型号 A1278. Intel 处理器,支持 Turbo Boost, 最多 512 MB DDR5 显存

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Installed Catalina on a MacBook Pro 13.3" - Mid 2012

So i know that this Macbook does not support Catalina but I went ahead and install it. The installation had several glitches with the circle and cross but it did made it to the desktop. Got online without any issues.

I did not used the computer all weekend but when i turned on the computer, it did turned on but it stop charging then it completely shuts off then i will not turn back on nor charge at all. Can this be related to Catalina, what could have happened? Is there a way to turn back on and install back High Sierra? Please assist, thanks!

MacBook Pro 13.3" - Mid 2012

Model #:A1278

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Let’s get a better view of things, install this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see 在已经存在的问题里加入图片

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Thanks for responding, like i mentioned, my mac book won’t turn on nor it will charge so i cannot install coconut battery.

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@uitadmin - I thought you had it working, if the system is not responding at all then that is more likely a hardware issue.

What is the color of the MagSafe chargers LED Green or Amber?

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Neither green nor amber are showing up. I've tested with different chargers.

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Lets check and clean the MagSage connections. Follow this Apple T/N Apple Portables: Troubleshooting MagSafe adapters

Are yours clean? Here’s an example of a failed connector

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If you looks damaged or can’t get it clean you’ll need a new MacBook Pro Unibody 13" and 15" MagSafe DC-In Board and here’s the guide to put it in MacBook Pro 13" Unibody Mid 2012 MagSafe DC-In Board Replacement

MacBook Pro Unibody 13" and 15" MagSafe DC-In Board图片

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MacBook Pro Unibody 13" and 15" MagSafe DC-In Board

$19.99

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Gabriel Rodriguez 将永远感激不已
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