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Hello,
a little while ago my Earl 2013 MBP the back light stopped working upon investigation I believe it’s a 1.5GB Nvidia 660m doesn’t show up at all in the system there is no kernal panics the only issue is the backlight it’s temperamental
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Most likely you have some corrosion damage either on the logic board display connector
Or within the displays connection (very difficult to get to)
Follow this guide to at least checkout your logic board connection MacBook Pro 15" Retina Display Early 2013 Display Assembly Replacement Follow Steps 1 through 4 to disconnect the battery, then jump down to Step 11. How does the contacts and solder joints look? Post some clear pics if you’ve not sure 在已经存在的问题里加入图片.
指南
难度：
困难
—
1 - 2 hours
指南
难度：
非常容易
—
2 - 5 minutes
这个答案有帮助吗？
Hey Dan I have done extensive checking for corrosion and there is none as for the other connector it’s all secure and no problems there
@peach production - Plug in an external monitor with either the HDMI or Thunderbolt ports. Is that display working without a problem?
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This series came in two configs with and without a discreet GPU, AMD GPU (DG) vs intergraded Intel graphics engine only (IG)
IG Models: MacBookPro11,2
DG Models: MacBookPro11,3
So lets not get lost on the different graphics this series offers as that doesn't involve the backlight.
由 Dan 完成的
Thank you Dan for getting back to me I will check it in a moment
由 peach production 完成的