Apple MC371LL/A manual If your MacBook Pro doesn’t turn on or start up

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If your MacBook Pro doesn’t turn on or start up

Try the following suggestions in order until your computer turns on:

ÂÂ Make sure the power adapter is plugged into the computer and into a functioning power outlet. Be sure to use the 85W MagSafe Power Adapter that came with your MacBook Pro. If the power adapter stops charging and you don’t see the indicator light on the MagSafe connector turn on when you plug in the power cord, try unplugging and replugging the power cord to reseat it, or try another power outlet.

ÂÂ Check whether the battery needs to be recharged. Press the small button on the left side of your computer. You should see one to eight lights indicating the battery’s level of charge. If a single indicator light is on, connect your power adapter to recharge. For more information about battery indicator lights, see page 56.

ÂÂ If the problem persists, close all open documents and quit all applications. Return the computer to its factory settings (while still preserving your files) by pressing the left Shift key, left Option (alt) key, left Control key, and the power (®) button simultaneously for five seconds until the computer restarts.

ÂÂ If you recently installed additional memory, make sure that it is correctly installed and is compatible with your computer. See whether removing and reinstalling the old memory allows the computer to start up (see page 45).

ÂÂ Press the power (®) button and immediately hold down the Command (x), Option, P, and R keys simultaneously until you hear the startup sound a second time to reset the parameter RAM (PRAM).

ÂÂ If you still can’t start up your MacBook Pro, see “Learning More, Service, and Support” on page 64 for information about contacting Apple for service.

Chapter 4   Problem, Meet Solution

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Contents Were made for each other Say hello to your MacBook Pro Mac OS X Snow Leopard Page Contents Looking for Something? Ready, Set Up, Go Ready, Set Up, Go What’s in the Box Setting Up Your MacBook ProReady, Set Up, Go Connect to a wireless or wired network Power button Configure your MacBook Pro with Setup Assistant Migrating Information to Your MacBook Pro Customize the Mac OS X desktop and set preferences Putting Your MacBook Pro to Sleep Putting Your MacBook Pro to Sleep or Shutting It DownTo put your MacBook Pro to sleep, do one of the following To wake your MacBook Pro Shutting Down Your MacBook ProPage Life with Your MacBook Pro Basic Features of Your MacBook Pro Built-in stereo speakers Keyboard Features of Your MacBook Pro ¤ Brightness keys F1, F2 Ports on Your MacBook Pro ¯ MagSafe power port Using the Multi-Touch Trackpad Secondary click zone Life with Your MacBook Pro Life with Your MacBook Pro Using the MacBook Pro Battery Getting Answers Charging the BatteryTo get Mac Help To learn about See More InformationChoose Help Bluetooth Help Page Boost Your MacBook Pro Boost Your MacBook Pro To replace the hard disk drive in your MacBook Pro Replacing the Hard Disk DriveBoost Your MacBook Pro Boost Your MacBook Pro Using the pull tab, gently lift the drive out of the bay Connector Boost Your MacBook Pro Boost Your MacBook Pro Long Short To install memory in your MacBook Pro Installing Additional MemoryBoost Your MacBook Pro Boost Your MacBook Pro Follow the instructions for replacing the bottom case in on To check the computer’s memory Making Sure Your MacBook Pro Recognizes the New MemoryPage Problem, Meet Solution Problem, Meet Solution To force an application to quit Problems That Prevent You from Using Your MacBook ProProblem, Meet Solution If your MacBook Pro doesn’t turn on or start up If you forget your password If you have trouble ejecting a disc Using Apple Hardware TestTo use Apple Hardware Test To use Network Diagnostics Problems with Your Internet ConnectionTurn the modem off and on and reset the modem hardware PPPoE Connections To check your Network preference settingsNetwork Connections Problems with AirPort Extreme Wireless CommunicationKeeping Your Software Up to Date To check for updated softwareInstalling Mac OS Reinstalling the Software That Came with Your MacBook ProTo install Mac OS To use Disk Utility Using Disk UtilityReinstalling Applications To install the applications that came with your MacBook ProSystem Profiler Learning More, Service, and SupportAppleCare Service and Support Online Resources Onscreen HelpCountry Phone Website Locating Your Product Serial Number Last, but Not Least Important Safety Information Last, but Not Least MagSafe power specifications Laser Information for Optical Disc Drives Important Handling InformationLast, but Not Least Last, but Not Least Keyboard and Trackpad Understanding ErgonomicsChair External MouseBuilt-In Display Apple and the EnvironmentRegulatory Compliance Information Bluetooth Europe-EU Declaration of Conformity Türkiye Disposal and Recycling Information Looking for Something? Index Looking for Something? Startup Disk preferences 54 stopping Zooming using the trackpad  Simultaneously published in the United States and Canada