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Hello, recently i changed thermal paste on my macbook but accidentaly i broke up an strip connecting the battery light indicators with logic board so i unplugged it. Now the problem is that mac doesn’t boot up anymore and only reaction to charger is its reaaaaly low green light, almost unseenable. Could the lack of this plug be the problem and will replacing it will help me? Sorry for english, thanks!
Not sure what you did here somehow you’ve damaged something in the process. The logic board has the charging control logic so it is now having problems. Did you reverse or damage one of the other cables? I would recommend you follow this IFIXIT guide in taking your system apart again to see if you made an error some how: MacBook Pro 13" Unibody Mid 2009 Logic Board Replacement In addition what thermal paste did you use? Some are conductive so if you applied too much it will leak out and can damage the logic board. Take a few pictures and post them here maybe we can spot what went wrong Adding images to an existing question