I have a 2017 Macbook Air 2017. A week ago I turned it on and  wrote my password, then it shut down. I tried to turn on but nothing happened. I read some posts on the Internet and tried the following:   Unplug the MagSafe 2. Open my MacBook Air. Disconnect the battery. Plug in the MagSafe 2. Reset the SMC (pressing Left Shift, Option, Control and Power for ten seconds and releasing at the same time). Connect the battery. Press power and Voila, It Turn On!   I was using my Macbook very happy but now when I shut down my MacBook to go to sleep, the next day when I try to turn it on, nothing happened. It stay shut down like at the beginning and I have to repeat the steps to turn it on.  Whats is the problem with my MacBook?  What do you recommend me to do? Any idea how can I fix it?
124215
I was just using my laptop normally when suddenly the whole computer just shut down. I turned it back on straight away and it was fine. Another hour passed and it did the same thing. I could also turn it on again. And then it happened again, this time I couldn't turn it back on!! I have never spilt any liquid over my laptop so it isn't liquid damage. I have tried resetting SMC, replugging the battery cable inside the computer, leaving the charger disconnected from the mac for a few hours, nothing works! The strange thing is when I have my charger disconnected and I press the little button on the side to show power, nothing happens. But when I do the same with the charger connected it shows full battery.     I have a MacBook Pro 15" Early 2011 running OSX El Capitan.
71965
When I open my MBP at the morning, I can feel the clicks for around 30 seconds, and then it's still functioning but without the click feedback. kind of goes to silent clicking mode. The built-in MBP trackpad works fine and I've another trackpad2 at the office that works great. Tried:  Turn it on and off. Connent with cable and without. Removed from connected devices and re-add it. Went through all the possible checkboxes on Trackpad + Accessibility settings.
58973
How can I read the status of the battery on my MacBookPro from my own application?  Googling has so far only revealed APIs for device drivers to handle power events - there's nothing about user-land processes accessing this information.  thanks.
116181
I have a new , resolution of 2560 x 1080, connected via DisplayPort to my 2012 MacBook Air 13" via a  that reportedly does have pin 20 wired correctly. I had previously tried connecting via HDMI, but as the manual for the display indicates, Macs are apparently unable to use the full native resolution when connected via HDMI.  A negative experience I'm having is that, when the MBA goes to sleep, the display appears to disconnect. This is noticeable only when waking it: the extra screen blanking of the display automatically reconnecting is almost imperceptible, and would otherwise be of negligible consequence, except for the result that all of my windows that were on that display are resized to fit on the MBA's built-in screen's resolution.  So, I find myself having to constantly re-maximize or rearrange windows whenever I walk away long enough for the screensaver to turn on and/or the computer goes to sleep. This is really aggravating, as I do arrange my windows quite particularly.  My options are seemingly thus:   Replace cable - maybe this is a manifestation of the pin 20 problem, but the display does awaken, just dis/re-connects annoyingly. Replace monitor - maybe something is wrong with this unit or this model?   I don't have another DisplayPort monitor easily accessible, but I might be able to borrow one or at least find one I can use in a store just to demonstrate that it's a DisplayPort or OS X problem and not a unit/model problem.  Tweak something in OS X - maybe there's a setting that I can alter that will disable this behavior, without having to disable screensaver or sleep. Suggestions welcome! Replace MBA - I'm already planning to pick up a new Macbook Pro this month, but I don't know if I'll get it in time to be within the display's return period, should I decide to return the display. I have a feeling this is not a reliable solution, because it's unlikely that the new machine wouldn't exhibit this behavior unless the behavior would change between Thunderbolt and Thunderbolt 2. ??? - this is where you ingenious answerers come in.
122137
I want to leave my Mac awake overnight so it syncs 4GB of data from Dropbox. I need to prevent the machine from going to sleep because that pauses the Dropbox sync  I've been using  to keep the computer awake, but it also keeps the computer unlocked which is insecure.  I need a method to keep my Mac awake (so that Dropbox can sync overnight) but also locked (so no one can read my email). It'd be great if this method also turned off the screen (to preserve power), but honestly that's not even 100% necessary.
34785
My Macbook Air 13", Mid 2011, got heated and is slow in working. I noticed that CPU Die temperature reaches 90° C, is that normal?  I've changed my fan recently but still get this issue.
45151
I am using an external monitor and the only way (that doesn't involve jumping through hoops) to turn off the MacBook Pro monitor is to close the lid.  Does closing the lid causes any problems? I have read the following on :     You can still run a single external monitor if you close the lid of   your laptop, but that restricts airflow and exposes your display to a   lot of heat. Not good.
13777
I am sure many of you guys know the flashing folder icon which shows up when the Mac cannot find a drive to boot from. My 2017 MacBook Pro has this issue for some time now, but recently I found something interesting.   The MBP won't find the boot drive, as long as the battery level is at > 70%.   The Mac boots just fine at lower battery levels; no issues whatsoever. Now, the problem is, I don't want to run my MacBook via battery the whole time or keep on disconnecting the AC power when 70% is reached every time.   Does anybody have similar symptoms and did find a better solution? Do you think there is a hardware issue with my device?   I've been to the Apple store before (when I didn't knew this was connected to the battery level) and they couldn't find anything. They suggested I reinstall macOS, which of cause didn't change anything.  Edit: One detail I forgot to mention was that when I charge my MBP and close the lid, it crashes and gets really hot (fans turn on slowly). I'm not totally sure on this, but I think this also happens with lower battery levels.  Battery Info:
92207
I have just installed the macOS Catalina 10.15.5 update on my 11" Mid 2013 MacBook Air. The update is working fine.  The MacBook Air specifications on the Wikipedia page says that this model has a lithium-ion battery, 'tho I haven't unscrewed the case to look. But the new Battery Health controls in System Preferences → Energy Saver don't appear.  Not a lithium-ion battery? Or perhaps other differences in this model prevent Battery Health from showing up? Something else?
20494
I am downloading macOS Sierra from Mac App Store. But I have electricity problem here. Due to which my iMac will lose power after 2 hours. Now I want to pause the downloading so that I can resume the download later on. How can I do that?  Here is a screenshot.
95504
I leave my MacBook Pro on my desk nearly all the time, connected to the charger with the lid closed, connected to an external display.  I've heard this is bad for the battery health, and everyone in my office have to replace swollen batteries every couple of years. I want to regularly discharge the battery, per , but I don't want to physically unplug it because that temporarily turns off the external monitor, and then I have to reconnect the monitor.  So I am looking for a software method of disabling the power input, to force the laptop to discharge its battery to 20% and then re-enable the power input.
48677
I'm new to the world of Apple, I bought a new Macbook Pro, mid-2020, Intel i7, 16GB RAM. I'm a developer, I run apps like VS Code, Sublime Text, Slack, Chrome (Multiple Windows), I play videos/songs in the background. I have been keeping a track of the energy consumption on my Mac, and it only runs for 4 hours. I have reset my SMC after I upgraded to Big Sur. Is 4 hours normal? or should I go to the service center? Update on 3 Feb 2021: I submitted my Mac to the Apple service center they said they conducted a few tests and the conclusion was that the battery is fine (I don't know what type of test they did). So I guess I'll be using it on AC Update on 12 Feb 2021: Took it to the service center, they didn't find any issues so I started using Safari for work and my battery has improved by 1 hour on Average.
121790
In Mac OS X, if I don't touch it for a while, it will lock the screen and one must use password to unlock it, but this kind of log in is not recorded by last command. I want to know if anybody tried to break into my MacBook when I am not in front of it. Is there any way I can log such attempts?
40287
I bought a new MacBook Air and was able to connect to the internet at first but now it won't connect.  I have other devices as well as other computers on wifi but my Mac won't connect.  When I try and click on the wifi, it tells me that it can't be joined.  How can I troubleshoot?
21974
I dropped my macbook air and the screen is like this since.    Does anyone know what exactly happened to it? Is it hardware or software?
30973
I see that the question &quot;why is my MacBook not charging?&quot; gets asked a lot. The problem is, there are multiple reasons. Possible points of failure are: charger, cable, magsafe connector, DC input board, logic board, battery. (Have I missed any?). What is the best sequence for a user to follow, to diagnose the problem? By way of example, here are the first steps that I usually try:  Make sure the charger is working. Either use your charger on a different Mac, or test a spare charger with your Mac.  Check the connection. There might be gunk in your port that's stopping the connector from lying flat.  Try resetting the SMC and PRAM.  If the computer boots, run Coconut Battery to determine battery status.   This is where I get a bit stuck. For example, I have a machine here that boots fine when plugged in, but not from battery. Disconnecting the MagSafe causes the machine to switch off. Sounds like it's a dead battery, except that Coconut reports the battery as detected, in good condition, but not charging. What steps should I take next? Specifically, I'm asking for a generic algorithm to help determine the source of the fault (preferably without swapping out lots of components one by one)?
14959
I have a MacBook Air, 2009, with a recently replaced Apple battery in December 2012. Recently, when power cord comes off, the computer shuts down. Also, it usually will not restart unless power cord is attached.