When I push the button on the the battery the lights ar not lighting up.Īgain with the battery removed I have the same problem (very loud fans, maximum, and no light on the MacSafe adapter) It would not charge and was bolded, now it is in good shape from the out side. The MacBook Pro is normal working but with loud fans and only with the MacSafe adapter attached. (According to several website this would solve the problem) (even followed Apple webpage about is (removable battery) It only gets green when the MBP is 100% off and the MacSafe adapter is attached then it is green No go Then MacSafe attach and the MBP started but in it did say no batteryĪll the time the light on the MacSafe adapter was OFF. Started activity monitor and the was no much CPU use from any program, The MacBook Pro booted “normal” but with loud noise from the fan (maximum) I started again in safe mode and repair permissions, booted again and still Loud noise. Remove battery remove MacSafe, hold down power button 10 sec, the reconnect MacSafe adapter, stil holding power button down and now for another 10 sec, release it and then startup the normal way. Tried several boot methodes but what did work was a tip i read from this support forum. What I did was pram reset SMC reset al logo read many webpage and al the suggestions goes to the SMC reset.įirst I did get the MBP and it was doing nothing, light was not burning (MacSafe adapter) The fans are very loud (maximum) It says no battery, no orange or green light on MacSafe adapter.
I am helping a friend with a MacBook Pro late 2008 on Lion 4 GB 1 TB HD At the very least, it helps to be informed of these kind of things, so if any of the above happens to you, before calling AppleCare or taking a trip to the Genius Bar, take a moment to reset the SMC yourself, it will almost certainly fix the issue completely. Having run into this twice on two different Macs in the past week it’s certainly a worthwhile topic to cover, even if it’s a relatively rare problem to deal with.
#Macbook pro battery x 2017 mac#
This is why for problems or oddities with power management like batteries disappearing, refusal to sleep, a very sluggish Mac combined with system fans blazing loudly, graphics cards acting up, are all very classic symptoms of needing to reset the SMC to get things back on track. What is an SMC anyway?įor those who don’t know, SMC stands for System Management Controller, and it handles power functions and other core hardware roles on Macs, thus inexplicable issues with power management are almost always resolved by resetting the SMC. You won’t always find an exact reason as to why the system management controller goes haywire along with core system and power functions, but the basic idea is that at some point something was corrupted, maybe for a reason or maybe not. Thus you will have to go back and make those minor power customizations again. It’s important to point out that resetting the SMC will cause you to lose many power-specific options and customizations you may have made to OS X with System Preferences, ranging from screen brightness levels, to settings in Energy Saver for how the Mac handles things like auto-dimming based on lighting and power sources, screen sleep behavior, sleep when idle, etc. In other words, it took only two minutes fix the entire problem, from adding up all the power-related issues, saving an important file or two, shut down the Mac, reset the SMC with the aforementioned keyboard sequence, then reboot the Mac to normalcy again. Note the total elapsed time in the clock is 2 minutes.
Here’s an example of the “No Batteries Available” menu, then after the fix the battery is shown functioning as normal again: Here are the precise key sequences for what an SMC reset looks like on a MacBook Air or a MacBook Pro (Retina) keyboard:Īfter the Mac has rebooted normally again, things should be all well and good again.
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