Incompatible login information identified with an application interfering with the Mac boot process.Broken application(s) affecting the system startup.It might be a display issue rather than a power issue.There isn't sufficient battery left on the Mac.Generally speaking, if a MacBook not turning on, the primary reasons may be: Some of these features can be made more permanent, for example if you want to always start in Verbose mode, check out this article to learn how to do that.Part 3: Recover Data from MacBook That Won't Turn On Hot Part 1: Why Wont My Macbook Turn Onīefore we look for the Solutions, you should comprehend why you are unable to restart Mac. These tricks work on all Intel Macs that have the appropriate hardware, for example, you’d obviously need a SuperDrive to boot from a DVD, but all Macs can boot from a hard drive that’s built-into the device internally. Note that newer Macs running Lion or later will also the ability to boot into Recovery Mode by holding down Command+R during startup. Start from a NetBoot server using the default boot image. Start up in Safe Boot mode and temporarily disable login items. Press Eject, F12, or hold the mouse (/trackpad) buttonĮjects any removable media, such as an optical disc.Īttempt to start up from a compatible network server (NetBoot). Note: Press N to make the the first bootable Network volume appear as well. Starts into Startup Manager, where you can select a Mac OS X volume to start from.

Press Option-Command-P-R until you hear two beeps. Start up in Apple Hardware Test (AHT), if the Install DVD 1 is in the computer.

Start up from a bootable CD or DVD, such as the Mac OS X Install disc that came with the computer. To use one of these startup key combinations on the Mac, start holding down the key immediately upon boot or reboot, basically right after you hear the system chime you want to begin holding down the key to achieve it’s desired effect.

Macbook pro 3 beeps how to boot up