CODE: 12843. Gray Lower Case for MacBook 12" Retina A1534 (Early 2015) 0.0. In stock. $46 00 $38 00. Save 17%. CODE: 14681. Lower Case for MacBook 12" Retina A1534 (Early 2015) - Silver. Macbook pro 2011 won't charge after adapter and battery replacement. My 2011 Macbook Pro recently had a RAM problem (black screen and and an intermittent alarm every time the power button was pressed), I took it to the local Apple genius bar, an assistant in ten minutes sorted the issue and it was turning on as normal. .

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