Apple MacBook Air "turn mac startup sound" Questions

turn it off then try to press the F10 key on your keyboard to mute you Mac before rebooting or use any app for it. if you want to know the importance of startup sound than follow Apple Support Number

...turn the sound back on. Any idea how to change it back so the speakers work? Hi, a try would be to reset the PRAM by pressing cmd - alt - P - R simultaneously at startup untill you hear 3 startup ...

...Mac OS X startup volume are unsuccessful, try resetting PRAM. Shut down your computer, then turn on the computer and immediately press and hold Command-Option-P-R until you hear the startup sound for ...

...turn on my mac laptop wont boot up properly. my daughter was on a gamesite and suddenly, the laptop froze. i turned it off, and wen i turn it on again, a blue screen appears with nothing on it. while ...

...Turn on your mac, immediately after the tone press and hold the command + S keys until the computer shows a black screen with white text. Once this is finished loading you'll be at a "command prompt" ...

...Turn on the computer. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears. Hold the keys down until the computer restarts and you hear the ...

...Turn on the computer. • Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears. • Now, hold the keys down until the computer restarts and you ...

...Mac, then turn on your Mac and immediately press and hold the Option-Command and the P and R keys. You must press the keys before the gray screen appears. Continue to hold the keys until the computer ...

...mac startup sound? If you hear then its booting up. Let it finish booting. Press the Brightness keys on the keyboard "F1 and F2" does the screen backlight turns on? if not use a flashlight and shine ...

...Turn on your Mac and immediately press and hold the Option + Command + P + R keys. You must press the keys before the gray screen appears. Continue to hold the keys until the computer restarts, and ...