Reset SMC

Similar Questions

• Reset SMC. removable or non-removable battery?

  Reset SMC. removable or non-removable battery?

  Nice day!

  I am considering a SMC reset.

  After reading this thread - https://support.apple.com/en-us/HT201295

  However, I don't know if I follow the steps:

  -If the battery is good behaviour

  or steps

  - If the battery is removable.

  My SN is C1 * TY3

  Theoretically my battery is removable, but I'm not sure if it is removable, in general, or if it means that he is or is not a "sliding door", as was the case on some previous models. Obviously the text found in ' Reset of the SMC on Mac Laptops ' more or less indicates that mine is non-removable, but I'm just looking for that very few insurance telling me stop worrying...: Pei

  Thank you!!!

  < published by the hosts of personal information >

  You should NOT put a serial number!

  in the Apple menu 'about this mac' give what he says about your mac: number, year and model, or a screenshot of what he says.

• IMac will not close - have reset SMC/PRAM etc - what to do next?

  I have an iMac 2011 (impossible to get more info as it "attempts" to close) - El Captain fully patched.

  Here's what I did:

  Reset the SMC

  Reset the PRam

  Checked and run repair disk (no problem)

  don't made sure no programs or applications were open before you stop (via command pkill)

  This computer shutsdown only when I press the power button.

  That then should check or just dropkick the POS?

  (super glad I backed up everything and moved to external hard drive)

  It also takes forever to start, when I restart it. Charge of Apple logo, it fills up half, screen turns white, 10 minutes later, it loads the OS.

  GRR...

  Your installed system is bad garbaged by stuff you have installed and used. Start from scratch:

  Install Yosemite or El Capitan, from scratch

  Backup if possible before proceeding.

  1. Restart the computer. Immediately after the chime hold down the command and R buttons until the Apple logo appears. When the Utility Menu appears:
  2. Select utility disc in the Menu Utility, then click the continue button.
  3. When loading disk utility, select the volume (entered into withdrawal, usually Macintosh HD) from the list of devices.
  4. Click Delete in the main window of disk utility. A panel will fall.
  5. Define the type of Format Mac OS extended (journaled).
  6. Click on the apply button, then wait for the done button to activate and click on it.
  7. Quit disk utility and re-enter the Utility Menu.
  8. Select reinstall OS X and click on the continue button.

• Reset SMC fails to fix the problem of fan

  So I tried to solve a problem where my fans are running overtime on my end 2011 MBP 13 ". I did a reset of the PRAM and SMC. However, I'm not sure that the SMC reset has never really worked. In the past when perform SCM restores, I remember that my magsafe adaptor change color, this was not past. The problem with the fans running continues. I tried several times, it doesn't seem to work.

  I don't know that I'm following the correct procedure, taking the left SHIFT-control-option and power keys at the same time and releasing at the same time.

  Any ideas how to solve this problem?

  The fan or sensor is maybe defective.  Run Apple Hardware Test:

  https://support.Apple.com/en-us/HT201257

  Note that an error free AHT is inconclusive.

  Open the MBP and see if there is dust and debris inside.  If so, clean.

  Ciao.

• MacBook Air battery does not load after resetting SMC

  

  Hi all, hope you can help me with this. My model of Macbook Air early 2014 seems to have some problems with its battery. The battery status says "do not load" and it is stuck at 74%. My charger light is still red and I tried to check the status of the battery, it is said to be normal; also I have reset the SMC and all that stuff that is suggested on the discussion Forum, but still it is of no use. Someone had a similar problem before?

  Try resetting the SMC two times more.

  If this does not help, please contact Apple support.

  https://support.Apple.com/contact

• IMac Fan AFTER Reset SMC fort

  I got my iMac for about 6 years now. It is used occasionally and only off (also unplugged) when we leave the city or during a severe storm. When we came back from a two week stay with the family for Christmas, we plugged the iMac back in and turned on. Now, it makes a loud fan noise. I read that the SMC reset will solve the problem, but in my case, the MSC would have been reset with the two week closed.  We did shut down the computer and restart it (reset the SMC a second time) and still have the same question.

  Thanks for any help.

  James

  iMac - 21 inches

  OS - Snow Leopard 10.6.8

  Simply unplug your computer is not reset the SMC. Follow the signs of the times letter two or three if necessary.

  To reset the SMC on processor Intel Mac Pro, iMac and Mac, as well as Xserve computers mini:

  1. Shut down the computer.
  2. Unplug the power cord at the back of the computer.
  3. Wait 15 seconds.
  4. Connect the power supply cable.
  5. Wait a few seconds, then press the power button to turn on the computer.

• MacBook Pro Late 2011 startup questions - SMC reset necessary after each shut down.

  I was asked to look at a friends end 2011 Macbook Pro.

  Initially, it seemed dead. No power, no response. I did the Shift + Command + control + Power to try to reset the SMC nothing helps.

  I opened the back and disconnected the battery and the magsafe. I help the power button down for 5 seconds. reconnected the dough tried power on and it didn't work until I plugged the magsafe. Ah ha I thought it, BUT. Once started it works very well, some check everything looks good and battery shows healthy with 70% of load.

  I restart the machine and it starts fine. HOWEVER. I stop the machine and I'm back to square one. Power supply photo and battery connected.

  So I rinse and repeat. battery disconnect power hold button wait 5 plug in back and then turn it on. As before it works only after the power supply was ALSO connected. to test this situation I tried again without connecting the battery and just the power supply. Since then only the battery was in, nothing until that I plugged the battery ALSO.

  So the Macbook will start only after a stop if the battery and power are both removed, button / help for 5 then BOTH the power and battery are reconnected.

  I've seen people with similar questions but no one seems the specific symptoms that it requires this reset each STOP but restarts not on the list.

  Clues, help, correct?

  See you soon

  Paul

  Hi deep:

  Have you tried resetting the NVRAM?

  Try reseting NVRAM. How to reset the NVRAM on your Mac - Apple Support

  Then try reseting SMC. Reset the management system (SCM) controller on your Mac - Apple Support

  Then, try a safe boot. Safe mode try if your Mac does not start-up

  Also, see this help file. If your Mac will not turn on - Apple Support

  Kim

• Apple icon flashes red once when starting the

  Suddenly, new iMac (drive merger) began to display a flashing icon of Red Apple at the start, but it does not start successfully, a bit slower than normal. A glaring red box box icon flashes red once during start up. Installed Sierra 10.12 on September 21, but this cannot be connected. With the help of an Apple technician, I put the machine through the

  • Disc utilities check App and through the restore process

  Reset SMC •

  • Safe mode starts

  • Memory NVRAM reset (three times)

  • Restored to point a few days before the problem occurred?

  Perplexing phone technician, and the master builder that he consulted had no answer. I am at a loss. Is there a problem, and if so, what should I do next.

  Thank you

  Pat (October 4)

  I have the same problem since I installed Sierra (2 days ago)

• Thunderbolt display is no longer detected

  I have a late 2013, MacBook Pro and a 27 inch Thunderbolt display, bought in September 2014. I use the screen without problems since then. But today the display is no longer detected. I got the MacBook disconnected from the screen, which has been briefly disconnected from the sector. (It was a power outage scheduled as it happens, but I don't see how that makes a difference).

  Now, when I connect display of the power of the lead part works fine but the screen does not illuminate. To the search, in the report of the system, the Thunderbolt Bus shows two Ports both with "no device connected". I have a Thunderbolt ethernet adapter and shows.

  I tried all the usual troubleshooting steps: disconnected power for a few minutes, resetting the NVRAM, reset SMC. A ran Diagnostics from Apple on the MacBook - all very good. I don't know what I can do. The Thunderbolt connector is slightly warm to the touch, which I think is always the case.

  Everyone you have other ideas please?

  Hey donnysp,

  If I understand correctly, the external display Thunderbolt is not recognized by MacBook Pro.  Looks like you already have a troubleshooting. I recommend you to read this article, it may be able to help solve the problem.
  
  

  Check the connections on your Mac and external screens:

  • If you use an Apple laptop computer, try to connect the AC adapter.
  • Make sure that the power cable from the external display is connected correctly and that your display is enabled.
  • If you are using a Mac Pro (end of 2013), make sure that your screens are plugged into the right ports.
  • If you use a hub of display, Cabinet or "KVM", try to connect the video cable from your screen directly to your Mac instead.
  • Unplug the video cable where it plugs into your Mac, then reconnect to reinsert the connection.
  • If you are using a video card, unplug the video adapter on your Mac, then reconnect to reinsert the connection.
  • If you use multiple video cards to connect your screen (the cards are "chained"), testing connection of the screen by using a single adapter if possible. Some video cards may not be linked together. For example, a mini DisplayPort to DVI adapter may not be connected to an adapter DVI to HDMI.
  • If your screen has more than one video connection, see if you are using another connection on the display works. If possible, check if you use a different view or a different adapter works.
  • Try using another cable that you know to be in working condition. Check with the manufacturer of the screen to make sure that you use the cable they recommend.

  Get help with graphical problems on external displays connected to your Mac.

  Thank you for using communities of Apple Support. Have a good.

• macOS absurd Sierra battery drain

  So, here's the thing. I bought my MacBook Pro in 2013 and since then I've never done a factory reset, so I installed directly all new OS', same thing, I did the week last with Sierra. Downloaded, installed, and everything was fine.

  A couple of days, I decided to make my first factory resets with Sierra already on my Mac. All right, utility, fade and that stuff was all smooth. The problem occurred when I finally started using my own Mac.

  Now, it's always hot, unusually hot even when I am just browsing Safari or writing on the desk. Previously, my (El Capitan and Sierra before reset) battery life was 10 hours now, only 3 hours on average.

  The point here is, there are a lot of people complain about deplete it the battery Sierra and overheating but I have found no solution, is there something I need to do to make it act normally (temperature and battery life), or should I just wait for an update by Apple?

  Things I've done: Spotlight has finished indexing and nothing has changed, not to use the Photo, reset SMC application does not resolve, go to Safe Mode and back did not help.

  Open Applications-> utilities-> activity monitor and search for one or several processes using a lot of CPU (click the CPU tab).

  Often a forgotten extension or another utility that is incompatible with the Sierra will loop, causing the type of problem you describe; other times it is something like Safari interacting with a bad web page or using an outdated version of Flash (or, let's be honest, no matter what version of Flash.)

  The first step is to find out who is the culprit.

• iMac external drive does not

  Two days ago, my iMac 2013 end ceased to recognize the external CD/DVD drive I have been connected to it for more than 12 months. Put just the blank disc in the drive resulted in a lot of rumbling and resonate but nothing appear on the screen. Tried a CD and DVD and there nothing either. Did a hard reset and it stopped recognizing the drive at all, so I assumed that the drive was defective.

  Bought a new drive, connected to one of the USB ports and nothing; won't even turn on. Tried different ports and still nothing. Just to be on the safe side, tried other devices on ports and they are beautiful, it seems that the readers of CD/DVD is having a problem with.

  I reset again, turned off and unplugged the power, and it made no difference.

  Someone at - it help him?

  Try to make as an SMC STROLLER and resets. I suggest you reset SMC 2 or 3 times. For reset instructions can be found in the iMac SMC and the PRAM reset

• no available power source battery

  

  my battery in the form x lounge, I connect to the power supply cord

  but the power supply continues to display battery

  

  already reset smc, just update macos what to do next? Thanks for help

  You can choose to wait until your computer is open to the public

  and diagnostic tests performed, if this issue does not affect

  any software update or upgrade; because the device must be

  provided with a steady current while the software is installed. In particular

  with the Mac App Store and if you use a wi - fi connection to access the internet.

  Usually the SMC or system management controller, if reset in one

  effectively, should also be a reset of power management,

  If the process is not successful, there may be other problems in

  the charging circuit which will have an impact on the whole Mac.

  https://www.Google.com/search?q=magsafe + dc-in + Council + alternative + MacBookAir +

  One of the elements which can manifest a strange behavior is whether or

  When the "MagSafe DC-in Board" has become defective. It can

  show no battery and always run the Mac. It may also fail totally in

  a way without notice; that can't end well if use it right now.

  • Make an appointment at an Apple Retail Store Genius Bar
  • Find an Apple authorized service provider

  Visit a regular on an Apple store with genius, or an authorized

  Apple's Service provider is recommended; to get a practice notice

  and certain diagnoses. They also estimate repair costs.

  • Laptops Apple: Troubleshooting MagSafe adapters - Apple Support

  • About batteries for laptops Mac - Apple Support

  Are the points of contact in the clean and free MagSafe connectors

  debris? -Which can cause the partial connection or errors here.

  Hard to say most likely probable cause of this problem. Maybe the material.

  Check out the details between the bandages. Recommend: technical diagnosis.

  Good luck in this case!

• A WiFi connection, dropping intermittently

  Any help appreciated

  Mac Book Pro 15 inch, early 2011

  OS X 10.9.5

  Processor 2.3 GHz Intel Core i7

  16 GB 1333 MHz DDR3

  Reset SMC has been set but drops after awhile.

  Also temporarily successful were:

  1. Disconnect battery
  2. Reset the NVRAM

  Since then, is happening in different places guess that there cannot be a router issue.

  Since then, is happening in different places guess that there cannot be a router issue.

  Yes, probably, what with the MacBook Pro itself.

  Try the following on your Mac in order, until (hopefully) solved:

  1. Create a new user account
     • System Preferences > accounts
     • Click on '+' to add a new account.
     • Disconnect, then reconnect, then with the new user account.
     • Try to connect to a Wi - Fi network with your Mac airport.
     • If this resolves the problem, there may be something wrong with your profile and require more troubleshooting.
     • If this does not resolve the problem, go ahead and log in to your account and go to the next step.
  2. Airport to delete the Keychain entries
     • Launch the application "Keychain Access", located in Applications/Utilities.
     • In the left side windows: Select login for keyrings and "Passwords" for the category.
     • Click on the 'Genre' filter at the top and search all "AirPort network password" entries... and remove them.
     • Close Keychain Access.
  3. Remove preferred networks
     • System Preferences > network > Wi - Fi > advanced > tab Wi - Fi
     • Remove all the entries in "Preferred networks".
     • Click OK.
  4. Add Network favorite (s)
     • System Preferences > network > Wi - Fi > advanced > tab Wi - Fi
     • Add preferred networks using the button «+»
     • Click OK.
     • Restart or log off and then, again.
       • If it works, then you're done.
       • If this is not the case, proceed to the next step.
  5. Move System Configuration files
     1. Quit all applications that are currently using Wi - Fi.
     2. Turn off the Wi - Fi from the Wi - Fi icon in the OS X menu bar.
     3. Open Finder > go > go to folder > / Library/Preferences/SystemConfiguration /
     4. Locate and select the following files:
        Note: The files are OS X specific version, not all of the following files are used in each version.
        • com Apple.Airport.Preferences.plist
        • com.Apple.Network.eapolclient.Configuration.plist
        • com Apple.WiFi.message - draw .plist
        • NetworkInterfaces.plist
        • Preferences.plist
     5. Move all of the corresponding files in the OS X Desktop. You can place them all in a backup folder. The 'missing' files will be rebuilt after the Mac is restarted.
     6. Restart the Mac.
     7. Re-activate Wi - Fi from the Wi - Fi icon in the OS X menu bar.

• I can't get MacBook Pro to start what it is.

  I have a MacBook in early 2011 Pro 15 ".  The other day, while he was playing in Mainstage my computer decided to restart but never got past the loading of 3/4 bar.  I have run all shortcuts start and seem to restrict the question down to the hard drive.  I bought a new ssd and then had to borrow a friends MacBook to connect with disk utility (my computer wasn't allowing me to any disk utility) to format the ssd drive and install OS X.  I installed the new ssd in my MacBook and I always get the same question.  I can't get into anything other than the single-user mode.  What is a motherboard problem or a firmware issue?  Someone at - it any other ideas?  RAM is tested ok, ssd tested ok, clean install of Mac OS X starts with another computer so that the work of.  Tested cable SATA, reset SMC and LANDAU, ok I can't access internet recovery mode (it loads, and then the screen goes black to white).  I'll try a firmware reset disk, I don't know how it will work but when I can't access anything whatsoever...

  I guess that's an incorrect configuration of the installed SSD. Assuming that there is no mechanical problem with the installation of the SSD, here is how you should have put in place.

  Clean Install of Mac OS X

  1. Restart the computer. Immediately after the chime, press Command + Option + R until a globe appears.
  2. The Utility Menu appears in 5 to 20 minutes. Be patient.
  3. Select disk utility, then click on the continue button.
  4. When loading disk utility, select the drive (generally, the entry Out-bumpy) in the list aside.
  5. Click the Partition tab in the main window of disk utility. A panel will fall.
  6. Set the GUID partition scheme.
  7. Define the type of Format Mac OS extended (journaled).
  8. Click on the apply button, then click the fact when it is active.
  9. Quit disk utility and re-enter the Utility Menu.
  10. Select reinstall OS X and click on the continue button.

  This will not work if your computer is capable of a resumption of network. See the computers that can be upgraded to use OS X Internet Recovery to see if you can use this method. If this isn't the case, then your computer initially comes with a version of Snow Leopard on an installation disc. Can you use this disk to partition and format the SSD install Snow Leopard. 10.6.6 or later, is required to access the App Store, where you can download El Capitan for installation.

• WiFi without hardware installed.

  I have the problem new wifi no hardware installed. I had this problem before, on and outside. I installed the new wifi card, cable flat and was not the problem. The problem was software, I'd do the reset SMC, resetting the Pram, reset memory NVRam and that would fix it for a while. I EL captain and he ran for a while without having this problem, but he's back, wifi no hardware installed. I removed some files in the list of network preferences and restarted to create new files, but now I do not have wifi listed in the network section in the preferences system on ethernet, thunderbolt and bluetooth option. I have a wifi dongle would I use to get when I had this problem who worked as Yosemite, but does not work under El Captain but it works in bootcamp with windows 10.

  My question, is there any suggestions any one has other than SMC, Pram, NVRam reset or delete files from network preferences (I already did several times) to get the captain El OS to recognize my wireless card?

  I'd do the reset SMC, resetting the Pram, reset memory NVRam and that would fix it for a while.

  In this case the problem is almost certain to be a hardware failure, and you have already tried a new Wi - Fi module.

  Generally, the problem that is causing the fault is an interruption of the connection as a common microscopic welding that can be difficult, if not impossible to find visually.