I replaced the battery in my friends MacBook Pro Retina 2012 using the part and guide here on iFixit. After double checking my work I reinstalled the bottom plate, plugged in the mag safe charger (light was green then amber) and turned it on. I then turned my head to pull up the battery calibration procedure (maybe 30 seconds) and when I looked back the MacBook was off.[br]
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I pushed the power button, nothing.[br]
I reset the SMC, the MacSafe charger flips from Green to Amber, but system will not power on.[br]
I disassembled, rechecking for any loose wires, tripple checking the magsafe connector. Also ran a continuity check with my multimeter through the magsafe pcb through the connector pins (fine).[br]
I tried unplugging the battery and starting with just the magsafe connector. No change.[br]
I reassembled and let charge for ~12 hours. No Change.[br]
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I’m not sure what else to try. I don’t want to declare it dead as I am getting some feedback from SMC resets, but I’ve run out of ideas.[br]
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given that the system initially started, is it possible that the iFixit battery killed my system board?[br]
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Thanks for any help or idea’s you can give me.