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原帖由: Dan ,

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You’ll need to open the system up to at least clean the dust build up using a soft paint brush and a can of can’ed air.

Follow this IFIXIT guide to either test or replace the DC-In board [guide|834]. follow the first five steps to pull the bottom cover off and battery. Then jump down to Step 24. Carefully squeeze the connector out between the case and logic board (the cable connection is short!) Once you do inspect the contacts to see if they are burn’t or dirty. Clean them with a pencil eraser then carefully place the MagSafe charger connection onto the contacts making sure not short anything in the process. Where you able to get the MagSafe to light up? If not you’ll need to pickup the steps from Step 5 replacing it.

Then let us know if that fixed things.

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