My 2012 Macbook Air wont turn on. SMC restart DOESN'T do ANYTHING. Is there anything else I can try?

So my 2012 Macbook Air was working just fine until the next morning I open it up and nothing happens: the apple logo doesnt light up, screen doesnt turn on, no boot up noise...nothing. Tried pressing and holding the power buttton multiple times...nada. Tried doing an SMC restart multiple times (and trust me I did it correctly)...no dice. Sooo I was wondering if there was anything else I could try and if you guys had some hypothesis on why this happened. Otherwise I'll just take it to the apple store (but id rather avoid the drive and time out of my day). Thanks!!

On a total black out with no SMC allowance, there is nothing to diagnose, no.
Contact Apple for in shop full diagnosis and likely repair.

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My macbook air wont turn on PLEASE HELP MY UNIVERSITY WORK IS ON THERE!! ANY SUGGESTIONS, my macbook air wont turn on PLEASE HELP MY UNIVERSITY WORK IS ON THERE!! ANY SUGGESTIONS

my macbook air is wont turn on PLEASE MY UNIVERSISTY WORK IS ON THERE

First, take a breath, be calm...
Then start here:
http://support.apple.com/kb/TS2043

My MacBook Air wont turn on. HELP!

My MacBook Air wont turn on, I bought this past September (as a birthday gift for myself) and this Sunday I was using it perfectly, then at night it didn't turn on. I tried several times to turn it on and it did once, I thought "Yes finally" but two minutes later it turned off and never to turn on again. I have taken care of my mac book so much, that I really dont know whats wrong. I bought on I trip I did to the US and I live in Honduras, we don't have an Apple store here not even a Genius bar for me to go and see whats the problem, I thought this machines were for life, like I literally cried so bad because I had to work SO hard to buy this computer and now its just not working.. why? I dont know. If theres any tricks to making this turning back ON please let me know.
Thanks APPLE...

okay, since you are in Honduras, I'll share what my Genius told me when he reset the SMC on my 11 inch mid-2013 Mac Air yesterday. He took it in back of the Apple store, came back in about five minutes with everything working. I asked him if there was anything I had done to cause the problem, he said no, except it might be better to actually "shutdown" the computer from the Apple pull-down menu when you aren't going to use the machine for more than a couple of hours (e.g., overnight). If the instructions in Intel-based Macs: Resetting the System Management Controller (SMC) - Apple Support didn't work, As for self-repair, he said this is what you would have to do (but he also said, you really don't want to do this yourself): you have to remove the bottom of the Mac Air (under the keyboard), and disconnect the battery. Then, with the battery disconnected, you plug in the power cord attach it to the Air, and then turn on the computer from the keyboard on/off switch while powered only by the power supply. That should reset the SMC. Then shut down the system from the Apple menu (not the keyboard button/switch), reinstall the battery, replace the bottom/cover, and see if it works. Just remember that fiddling inside the back of a Mac can be dangerous to the Mac and your warranty! Good luck

External monitor will not sleep using 2012 MacBook Air and HDMI adapter

I am running a HP 27xi (27" display) using the apple thunderbolt to HDMI adapter, and using a HDMI cable.
ISSUE:
I run my 2012 macbook air in "clamshell mode", and solely use the 27" display, which works great. Problem, is when the macbook goes to put the display to sleep, or sleep for the laptop, the display starts to go into power save mode, then flips back on... goes back into power save mode, repeats forever. I called HP, and they said the HDMI signal is not being turned off, hence why the screen keeps going ON, then power save, then repeat. If I shutdown the laptop, then the monitor goes off just fine.
Anyone else ran into an issue with an external monitor NOT going to sleep when plugged into the HDMI adapter? Someone suggusted that I purchase a DVI-D adapter, and use that cable... but that sounds ridiculous. The HDMI adapter should absolutely work.
My temporary fix is to turn off the monitor everytime (if i remember) otherwise the display is in this never ending loop of trying to shut down.
And yes, the Macbook Air is 100% up to date with updates. DRIVING ME CRAZY!!!
Joe

Hello Joe,
I definitely understand your concern regarding your external display not going to sleep and endlessly looping into power save mode when your MacBook Air is asleep.
I found an article with steps to troubleshoot issues with displays. This article is for internal and external displays, so you can skip any steps referring to the internal display. The following steps specifically stands out to me for the situation you are experiencing:
Reset the system
You can reset the Mac's parameter RAM and SMC.
You can find the full article here:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Thank you for using Apple Support Communities.
Best,
Sheila M.

How do I run Apple Hardware Test on a 2012 MacBook Air with 10.8.4?

Hello everyone,
I am trying to run Apple Hardware Test on a mid-2012 MacBook Air with 10.8.4 installed. Whenever I restart and hold the letter D my computer goes into internet recovery mode and asks me to connect to Wifi... Please help, thanks!

Using Apple Hardware Test on computers with OS X 10.7 or later
Mac NoteBook and Desktop computers shipping with OS X 10.7 or later have a partition on the hard drive or flash storage that contains AHT. To start AHT on these computers please follow these instructions:
Press the power button to turn on your computer.
Press and hold the D key before the gray startup screen appears.
It takes a minute or so for AHT to start up and inspect your hardware configuration. While this is taking place, an icon appears on the screen:
When the process is complete, select your language and click the right arrow. If you aren't using a mouse, you can use the up and down arrows to select a language and then press the Return key.
The AHT console appears. You can choose which sort of test or tests to perform:
To perform all of the basic tests, click the Test button or press the "T" key or the Return key.
To perform a more thorough diagnostic test, select the "Perform extended testing" checkbox under the Test button before you click the Test button.
Note: Your test results will appear in the window in the bottom-right of the console.To exit AHT, click Restart or Shut Down at the bottom of the window.
Some Macintosh computers that shipped with OS X Lion and later support the use of Apple Hardware Test over the Internet. These computers will start up to an Internet-based version of AHT if the hard drive does not contain AHT. An Internet-enabled connection via Ethernet or Wi-Fi is required to use this feature. Internet-based AHT functions the same as AHT on the hard drive or flash storage outlined above.
The Mac NoteBook and Desktop computers listed in Computers that can be upgraded to use OS X Internet Recovery will require a firmware in order to support the Internet version of AHT. Without this update you may see the behavior discussed in this article.
http://support.apple.com/kb/HT1509

My macbook air wont boot up past the loading screen. UPDATE

My 2008 macbook air will turn on, and then go to the apple screen with the loading wheel, but after a few minutes of loading it just shuts down...
Here is an update of the problem after i messed around with it for a bit.
I start up the macbook while holding Command+s
Then it brings up the prompt.
I then type: /sbin/fsck -fy
It then outputs a message saying:
disk0s2: I/0 error.
Invalid sibling link
(4, 42746)
**The volume macintosh HD could not be repaired.
/dev/rdisk0s2 (hfs) EXITED WITH SIGNAL 8
After that, i type in: /sbin/mount -uw /
Then I type: exit
It runs the logout scripts and then immedietly boots up fine, like the computer has no problem.
It works fine like this, but i dont want to have to do those steps every time I want to use my macbook...
Any help on how to fix this?

I have a similar problem. Not sure you're on here (since the post is really old) but did you manage to work it out? How?
My thread:
https://discussions.apple.com/message/19007548#19007548
My Imac froze earlier today as I was dragging an image from safari into indesig and when it froze the weirdest pattern overlaid the screen. It looked just like the opacity pattern from photoshop with grey and white squares. I turned the computer off using the power button and unplugged everything.
Now when I try to start it these weird lines appear on my start up screen (see link)...
http://meijerladdaruppgrejer.wordpress.com/2012/07/24/oops/
as you can see the apple and the wheel appears as normal...
... then it moves to a normal looking white screen (perhaps a bit greener than usual) and around 30 seconds later freezes at the blue screen.
I've tried the cmd + alt + p + r several times but it won't help.
If i press alt during start up I can see and choose my hard drive but just end up at the blue screen again.
Can I try starting it up in safe mode or something?

My 2012 macbook air won't recognise my orange internet everywhere usb modem

my 2012 macbook air will not recognise my orange internet everywhere usb modem

Used 'Assist Me' as suggested - awsesome. Here is what was wrong with my network. Had same problem - found out I had another router plugged in but not active. Turns out it was still xmitting a signal and confusing the macbook. Go figure. Once it was powered off - connection was perfect. Hope this helps.

My 2012 MacBook Air 13 kernel panics when its opened up from a sleep

My 2012 Macbook Air 13 (512/2.0ghz/8gb) crashes (kernel panic) after the SMC update. It crashes when you open it after it has been sleeping for about 8 hours. It does this after it sits for about 8 hours closed (sleeping) on battery and while plugged in. It is easy to replicate, it happens every day when I come in to work and then when I open it to work in the evening. I have submitted the crash report to Apple each time it happens and explained the circumstances which caused it to crash. Anyone else having this issue? I'm on 10.8 and applied the recent SMC update. It never did this on Lion (what it shipped with).
Are there any power nap logs I can check to see if that is causing the issue? Can I disable power nap to try that?

im having the same issue as you zaze. my march 2012 macbook air hang every single time when it try to wake up from sleep mode. it started to happen after i upgrade to mountain lion and then the smc update. i believe is the smc update[power nap specifically] issue, because before that patch the Mountain Lion OS is doing fine[i update the smc patch a week after it was release so i'm pretty sure is tht smc patch issue.
tire of playing around with the config, on this and off tht, it does not help at all and still hang[keyboard not responding , screen hang, sometimes cursur can move but it can do nothing with it].
i need to go through this multiple times a day until i so fed up that i change sleep mode to kick in after it idle for 1 hour.

MacBook Air not turn on, after hard disk eject, without guarantee

Hello i have two macbook air not turning on,
after ejecting external hard disk, when macbook air is sleeping.
External hardisk ( 2.5 sata) have one ending of USB Type mini-B
and two endings of cable (one for data, other for power), of USB Type A
After next sequence,
-insert one tail of usb cable into macbook air, the second usb cable into 5v adapter (like iPhone usb adapter)
-after some time macbook air going to sleep
-without waking macbook air, pull out the cable what connected into macbook air
MacBook Air will not turning on.
even after this instructions
http://support.apple.com/kb/ts1367
In nearest AppleStore they say that there is a problem with logic part of notebook,
And the minimal price of repair will be cost half price of macbook air.
In other words, they say what they will not searching the problem of this,
they only will replace mother board.
Would you suggest other solutions ?
May be somebody else have this problem ?

OK. I wasn't quite sure. So, the first thing to try is Resetting your Mac's PRAM and NVRAM followed by Intel-based Macs: Resetting the System Management Controller (SMC). If neither can be effected then take it in for service as there has been a serious hardware failure.

Power Nap Not Showing in Energy Settings of my 2012 MacBook Air

I've updated to Mountain Lion, I have a new 2012 MacBook Air. Is anyone else able to see these settings? I can do a spotlight search for power nap, and it takes me to energy settings, but I get nothing else.

im having the same issue as you zaze. my march 2012 macbook air hang every single time when it try to wake up from sleep mode. it started to happen after i upgrade to mountain lion and then the smc update. i believe is the smc update[power nap specifically] issue, because before that patch the Mountain Lion OS is doing fine[i update the smc patch a week after it was release so i'm pretty sure is tht smc patch issue.
tire of playing around with the config, on this and off tht, it does not help at all and still hang[keyboard not responding , screen hang, sometimes cursur can move but it can do nothing with it].
i need to go through this multiple times a day until i so fed up that i change sleep mode to kick in after it idle for 1 hour.

My macbook pro wont turn on and is making a bleeping noise

my macbook pro wont turn on and is making a bleeping noise

the following article addresses startup tones and beeps for the mac:
http://support.apple.com/kb/HT2538
also try doing SMC reset:
http://support.apple.com/kb/HT3964

MacBook Pro wont turn on; But fan is spinning?

MacBook Pro wont turn on; But fan is spinning
Already tried reseting the
p-ram
SMC
Removing the:
ram
battery
hard drive
MacBook Pro 13in- 2010

your screen may be broken connect an external monitor.

Mid 2012 MacBook Air Yosemite Slow Booting and Old Boot Screen

Hello Guys,
I have a mid 2012 MacBook Air 13" and I had installed public beta of Yosemite on it. Now I am running OS X 10.10 (14A388b) and I have problems on the boot. On all the other macs, I saw that the booting screen is black background and a white Apple logo on it. But on my mac, the booting screen is same as Mavericks and for the first 5-6 seconds, the Apple logo doesn't show up. And the mac is booting very slowly. Also, Continuity and Handoff are not working properly. What might be the problem?

Hello Guys,
I have a mid 2012 MacBook Air 13" and I had installed public beta of Yosemite on it. Now I am running OS X 10.10 (14A388b) and I have problems on the boot. On all the other macs, I saw that the booting screen is black background and a white Apple logo on it. But on my mac, the booting screen is same as Mavericks and for the first 5-6 seconds, the Apple logo doesn't show up. And the mac is booting very slowly. Also, Continuity and Handoff are not working properly. What might be the problem?

Mid 2012 MacBook Air: fan won't run faster when overheated

mid 2012 MacBook Air, system (tried Mountain lion/Mavericks/Yosemite, all have the same problem)
WHAT HAPPENED:
The other day I was watching some flash video on the couch, and I heard the fan running like crazy. The laptop shut off 2 seconds later-- no warnings, just black out all of a sudden. (ps: I usually use it on the desk. Only used in bed/couch for a few times)
It won't start if I press the button immediately afterwards. Instead, it will restart itself after a few minutes, no matter what.
I shut it down and let it cool down for about an hour. From then on it wouldn't last more than 5 minutes when used heavily (Facetime, chrome together) and about an hour when used lightly (only one app like chrome). Then it shuts off without warning like before. The laptop felt really hot, and I couldn't hear the fan.
The battery drop down menu says "service battery", and doesn't disappear after a few restarts.
WHAT THE APPLE GENIUS SAID:
I took it to the Apple Store the next day, a genius ran a hardware test, and it showed no problem at all. After the test and restart, the "service battery" warning was gone too.
The genius said it seemed everything is ok. The battery only ran 159 cycles, and it's supposed to last 1000 cycles.
But he doesn't know why the laptop would shut down out of nothing. If we had apple care, they could bring it back and stress it out, to see whether it shuts off and find the problem. I just brought it home to see what happens.
WHAT I TRIED:
1. Max CPU: the fan doesn't react, still runs at 2000 rpm.
2. Hardware Test:
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          when it's cool, it passes the regular test in 1min30s, showing no problems.
          when it's cool, the extended test cannot last 3min before it dies.
3. Fan test, it can run at maximum speed. In this case the CPU temperature will drop quickly.
4. The Enclosure Bottom, Memory Controller and the Mem Bank temperature doesn't seem to change. (I don't know if they are supposed to be that way...)
Please give me some advice about what you think the problem is, and what I can do about it. Thank you all so much!

If it didn't show any problems in the Apple Store, maybe its your ambient temperature? Although even this shouldn't cause your machine to behave the way it is currently. You need to record it or something then show Apple the issue.

I have a mountain lion 10.8.5 version installed on my 2012 Macbook air but there is no Wireless Network application installed. Can anyone advise me how to fix this or get it installed, thanks.

I have a mountain lion 10.8.5 version installed on my 2012 Macbook air but there is no Wireless Network application installed. Can anyone advise me how to fix this or get it installed, thanks.

thank you Eric/Joe, what I actually was looking for is wireless diagnostic utility not the wireless diagnostic assistant as per your advise but have found the resolution right here http://support.apple.com/kb/HT5606

My 2012 Macbook Air wont turn on. SMC restart DOESN'T do ANYTHING. Is there anything else I can try?

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