![]() ![]() In this case the age of the battery has done you in, as over time the chemistry of the battery breaks down. Your battery does indeed need to be replaced. heavy load on battery (probably when the GT650M wasn't working, I didn't experience such a situation when it was on battery. ![]() I tried all the things like SMC, NVRAM, Safe Boot and no results. It's true that I turned it off, but what does it mean if the computer realizes that it's shutting down? In the future, I will open the inside of the computer and share the conditions and photos of the parts with you. When I turn the computer off and then on, it says that the computer both shuts down due to an error and shuts down forcibly. When I turn off the automatic graphics and switch to the GT650M, the screen goes out again shortly after the Mac is turned on. I did not open the inside of the computer, but I did everything that could be tested from the outside in terms of software. ![]() Since the power of the battery is low in the coconut battery, the usage time is about 2 hours on average My computer's battery and charger (probably) confirm that it is original in software and physical. I tried all the applications in the forum, I could not get any results. My computer usually loses its screen in situations that require high graphics power and the keyboard's backlight continues to turn on Hi, I’m a Mid 2012 15” MacBook Pro Retina use, I bought it second hand. ![]()
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