MacBook won't start

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• MacBook won't start - completely back screen

  2015 12 '' MacBook

  My MacBook won't start. I put on various points of sale and even changed on the brick of cable and power (I have an extra).

  Nothing happens when I press and hold the power button.

  Any suggestions before I take it to the Genius Bar?

  Here is some information that might be useful.

  After I press the button for a few seconds, the trackpad does not haptic feedback, confirming that this is the start.

  However, if I press the power button once again, I get haptic trackpad. It tells me that it is on, but I always get a black screen. And if I press the caps lock key, no green light appears.

• MacBook won't start or load in single user

  Hello. I hope you can help

  My sons MacBook primer is more. It happened a day after that that he has uploaded a large number of movies on iTunes.  Not sure if there is a connection.  It shows a gray bar after typing in his password - stop down after half of the bar is filled.

  I tried everything I can find on the forums.

  It does not start in safe mode

  It will start in recovery mode.  Disk utility, says that everything is ok on the hard drive. However, it is also said that it is 100% full of 'other' files.

  It does not start in single user mode - gives me the error:

  Builduser error (): construction of a user of type 0 error x 20010008

  I have reset the NVRAM

  FileVault is not enabled - at least the so-called recovery mode

  any other ideas?

  THX

  Brad

  You have another Mac, you can use or borrow? You could try booting the Macbook target disk mode and connect it to another Mac.

  The hard drive should appear on the other Mac, and you can try to remove some of the films to get about 10 GB of free space on the disk. Then try to start it normally.

  Share files between two computers with target - Apple Support disk mode

  If you need to borrow one, try to see if the Macbook target disk mode - I don't see why he shouldn't, however.

• My MacBook won't start properly...

  Hello.

  My MacBook Pro (with El Capitan) does not seem to start correctly... I've updated the DIVX program and after that, the pc restarted just by itself (there is no nessage that a reboot was iminent)... However there has been music of reboot, followed by the Apple logo and the loading bar (at this stage there was already something weird... the white color background and distorted)...

  After some time of loading this bar, she evacuated, background color standard, but then the pc will turn off by itself (before getting to the part of authetication)... If I turn again the same things happen...

  Does anyone know or can tell me one any solution to this? Is anyway to start the pc in safe mode, before that, so I could try to fix it?

  Thanks for the help.

  Kind regards

  Tiago

  • For safe mode: immediately after the tone, hold down the SHIFT key for a few seconds.
  • for the singleuser mode: immediately after the tone, hold down the command key AND the s key.
  • To start with messages: immediately after the tones, press and hold v for a few seconds (verbose)

  Let us know what is happening, last 10 or if lines of verbose would be useful if you can intercept them.

• MacBook won't start not

  Hi, I have a Macbook late 2009, 4GB, El captain.  Since last year it started to slow down a bit, then applications are beginning to freeze and the beach ball are gone and... for ages (in hours) and even if I try to force that, I couldn't because everything has been frozen. So I had to force shut down the computer. Then, after a while, I couldn't start the computer and when I went to recovery mode, disk utility, the hard drive was still there but nothing about this, so I reinstalled from Time Machine. Was OK for a week, then again the same thing. For these last days, everything was ok, restart this morning I could not at all so I reinstall it again from Time Machine. I verifier check with EtreCheck, run first aid and everything seems fine. What is going on? Someone had this problem? Thanks for help.

  Why not publish the report of EtreCheck?

• In early 2011, MacBook Pro won't start

  In early 2011, MacBook Pro won't start

  Is-ti connected? Fully charged?

  Give us some facts!

• MacBook Air 11 "2012 won't start

  My MacBook has been in place and become Finder does not always whenever I try to watch my files.

  So I decided to restart and now it won't start, the startup would always freeze in the middle of the progress bar.

  I tried:

  Repair/check disk + permissions - no problem

  Reset NVRAM memory - still does not start

  Reset SMC - still does not start

  I tried single - user drive is quite well

  Reinstalling OSX - cannot run due to 'this article is temporarily unavailable.

  And finally, the verbose mode and I am skeptical behind the text following code/orders:

  Dynamic code of I080211AWDLPeerManager::configure not support on this device

  I080211AWDLPeerManager::getVHtCapabilityIE cannot get the vht ret 2d capabilities

  EN1: enable successful "Promiscuous" mode

  en0: BSSID changed to XX

  Afree mode detailed of these commands would freeze too.

  I tried almost everything and I don't want to consider formatting my drive, which can also not let me install OSX for the above mentioned reason. So yes, all my options are gone. It's quite frustrating that came from nowhere and that my options are now extremely slim.

  To add my MacBook is no longer a guarantee and it doesn't have the AppleCare.

  I'd appreciate any help, thanks!

  Reinstall OS X without erasing the drive

  HD recovery start: restart the computer after the ring, press on and hold down the COMMAND and R until the menu screen appears.

  Repair the hard drive and permissions: at startup, select in the main menu disk utility. Repair hard disk and permissions as follows.

  When the recovery menu appears, select disk utility and press the continue button. Disk utility charges and select Macintosh HD entry indented from the list on the left.  Click the first aid tab, and then click the repair disk button. If disk utility reports any errors that have been corrected, then again run repair disc until no errors are reported. If no errors are reported, click repair permissions . Wait until the operation is complete, then quit disk utility and return to the main menu.

  Reinstall OS X: Select reinstall OS X and click on the continue button.

  Note : You will need an active Internet connection. I suggest to use Ethernet if possible because it's three times faster than Wi - Fi and more reliable.

  If you have no success with the above, try:

  Install or reinstall OS X from scratch

  Make sure that you have backed up your files because the following procedure will remove all of the hard drive.

  HD recovery start:

  Restart the computer and after the buzzer, press on and hold down the COMMAND and R until the menu screen appears.

  Erase the drive:

  1. select in the main menu disk utility and click on the continue button.

  2. once the charges of THE select your boot volume (usually Macintosh HD) in the

  list on the left. Click on the Erase tab in the main window of THE.

  3. set the type of format Mac OS extended (journaled). If necessary, click

  Security and button all the option data from scratch in a single pass. Click

  the clear button and wait until the process is complete.

  4 leave FROM and return to the main menu.

  Reinstall OS X: Select reinstall OS X and click on the install button.

  Note : You will need an active Internet connection. I suggest to use Ethernet if possible

  because it is three times faster than wireless.

  This should install the version of Mac OS X that you had installed it.

• Black MacBook does not start

  I have a 10 year old black Macbook, which does not start when a battery is installed.  If it is connected without battery installed, it lights up, but if there is a battery in it, even if it is plugged in, it will get the startup sound and the screen of the Apple gray, then turn off.  I got a new battery and charge it where the charger turned green, but the results are the same.

  Any suggestions?

  It is difficult to say what is happening with this machine, since the time and wear are considerations. I don't know what version of the operating system that you use, but there is a sequence of things you should do - in order of severity.

  http://www.howtogeek.com/217158/what-to-do-when-your-Mac-won ' t-start-up.

• MacBook does not start (even in safe mode)

  Hi, I have a MacBook pro that won't start. When I turn it on, I hear the ring of priming, but then the screen stays black. I tried all possible troubleshooting recommendation, that I could find on the internet, but nothing makes a difference. None of the startup option keys (start in safe mode, mode disk target, selection of the boot drive, etc.) anything. I can reset the PRAM, but nothing else has even made a difference. All I see is a black screen

  Last night, I tried to install another OS in a dual-boot configuration, so I was messing around with partitions on my hard drive. I thought that the worst case scenario, I could always reinstall the OS. Can really break the complete formatting of the hard drive boot sequence? I thought that a hardware failure would prevent me from booting from a USB stick recovery.

  The computer is a MacBook Pro 15 "start 2013I think.

  Thanks for your time

  Command-R works.

• my iphone 6s erased and won't start

  My Iphone 6s erased and won't start

  Hello

  Follow the instructions here, including contacting Apple Support or your Genius Bar reservation if necessary:

  If your iPhone, iPad or iPod touch won't turn on - Apple Support

• Another that holding down the power button, then by restarting, how should I manage my end 2009 27 "iMac when he crashes on the first blank white screen and won't start?

  Another holding down the power button, then by restarting, how should I handle turn on my end 2009 27 "iMac when he crashes on the first blank white screen and won't start?

  Combinations of keys start for Mac - Apple Support

• Equium A100-147 tried to update BIOS, now won't start

  I was updating the BIOS on my laptop and now it won't start, the screen stay black and I just hear three beep. A long-term follow-up of two short.

  Any help would be appreciated,
  Thank you.

  > I was updating the BIOS on my laptop and now it does not start

  It seems that the update of the bios that went bad and had to be reflashed. Bios recovery is a delicate procedure and you should contact the service center:

  http://EU.computers.Toshiba-Europe.com/innovation/generic/ASP_SUPPORT/

• Satellite Pro 6000 won't start or do something

  Hello

  My satellite pro 6000 stopped working all of a sudden.
  Power led, battery, keyboard LED is on, but nothing happens, tried to remove the battery, cd, hd and put them back, nothing seems bad.
  Also tried the back button back in case but no tip was not all good.
  It just won't start at all.

  Any ideas out there?

  Thank you

  [Edited by: moderation of the Forum]

  Do the job of seem´to LEDs ok, or they do a code flashing for you say that it is something wrong?

• Qosmio G20 - won't start, error ATA #1

  I have a G20-102. Today I opened my flash drive and files all showed them as shortcuts. I tried to connect to Firefox 4 and a warning from AVG threat came pointing to C:\windows\system32\mssrv32.exe (Tr/Crypt.xpack.Gen3) as a Protection of identity. I opted for the "Move to vault" option and asked to restart

  Now my pc won't start - I get the Qosmio screen, ATA error #1 (CD player has been removed) and then the screen "rolls" - looks like random pixels flashing on the screen. I'm trying to start safe mode, but F5, F8 or any Fkey is not doing

  To make things worse, the CD rom has been removed, faulty, so I can't boot from another device. I don't have a USb in the BIOS, only FDD option which I did not

  Help, please

  Hey,.

  To me, it looks like a serious hardware malfunction

  You could try to load the default settings in the BIOS. Enter in the BIOS, and then press the F9 key to load defaults. Then save & exit the BIOS and try to start again.

  The HARD drive is recognized correctly in the BIOS? If so I try a recovery disk Toshiba recovery installation and check if the problem is hardware or software partners.

• Satellite Pro 2100 won't start at all - LED flash

  My SP2100 began to have feeding problems and now won't start at all. The AC adapter green LED is lit, that are relevant lights on the body of the laptop (although the "battery charge" light always orange these days). When I try the switch on, startup begins (in fact succeeded on occasion until this morning), however the battery indicator and the adapter lights are flashing, and everything stops again.

  On the rare occasions when I'll be past this stage, lights blinking, and the system soon shuts down again with a screen message "low battery." Until this morning, he would sometimes settle, the computer remained on, and the lights showed a State of equilibrium as usual.

  Initially I thought that the problem was of course the battery or the AC adapter, but now I'm starting to think that it is with internal PSU of the laptop (although I suspect the battery is probably tour after all this part of loading and unloading).

  Any ideas?

  Hello

  I think you're right. Flashing LEDS are a sign that hardware is defective.
  I can't say what exactly is the problem, this should be verified by a technicain.
  On the other side I don't know if it's worth to repair such an old machine.

  Good bye