Chosen Solution
Hello everyone, I’m hoping I can get some help getting my mid 2012 MacBook Pro to work again. A few days ago I went to power on my system, it made the normal Apple boot tone, then my screen went blank and the computer has been unresponsive since then. I have tried the SMC reset, booting it in safe/repair mode, and disconnecting the battery without any success. The MagSafe LED light on my charger shows up a very dim Green, but I plugged it into another MacBook similar to mine and it charged it no problem. Whenever I plugged it back into my MacBook the LED light went from being the dim Green to Amber. I tried to power my system up then to no avail. I sadly wasn’t able to leave it plugged in for more than 2 minutes. Does it sound like getting a new battery would help or does it sound like another issue?
If you moved the MagSafe charger plug from one Mac to the other in a matter of seconds the Amber light would be meaningless as it would take a while for the charger to reset. If you have a dim Green light with or without battery, you probably have a logic board issue involving either the first power protection stage or the charging circuit. However, if you have a battery issue it would be sufficient to disconnect the battery from the logic board and plug in the MagSafe to have a spontaneous boot and normal operations. If that’s not the case, an in depth troubleshooting and micro-soldering skills would be needed to fix it.
