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2.2 GHz (Turbo Boost up to 3.4 GHz) or 2.5 GHz (Turbo Boost up to 3.7 GHz) quad-core Intel Core i7 processor with 6MB shared L3 cache.

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Display issue after replacing the right speaker on mbp

So i when thru the repair guide on here to replace my rattling right speaker. No issue with screen before but after installation the screen have issue. I went thru removal guide 2x double checking if any wire i miss or not properly connected and everything seems fine. I connect it to external monitor and it looks fine thru monitor. I did the smc reset and pram reset still have same issue. Please help thanks

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I think the first thing to check is if there is any damage to the display connector and if it is properly seated. Here is the iFixit guide.

MacBook Pro 15" Retina Display Mid 2014 Speakers Replacement

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Whats the 2nd thing to do since i see no damage to display connector?

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I also replaced the macbook pro lvds cable but still have the same issue…

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