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Hello! After changing the battery of an MacBook Pro 13" retina late 2012 the device will not run on battery power, or charge. I can supply picture of the motherboard if needed, to see if i may have broken an component.
sounds likes a faulty battery. not much alternative a part for buying a new battery.
Download and run Coconut Battery to see the condition of the battery and if it’s even being seen. Did you use the guide? What was the source of your replacement? http://www.coconut-flavour.com/coconutba…
