When upgrading the SMC (System Management Controller) firmware on an Intel-based Mac, you experience issues if power was interrupted during the update process, or if the firmware update installation did not work for other reasons. Issues may occur when starting up, displaying video, going to sleep, or there may be fan noise issues....

Some third-party audio products, such as headphones, may not plug into the MacBook Air headphone jack because part of the connector does not fit within the port hatch. In some instances, it may appear to fit, but the audio quality is intermittent or poor when used with these models of MacBook Air:  MacBook Air (Original) MacBook Air...

The following is an overview of the startup sequence, error conditions, and behaviors for all Intel-based Macintosh systems. Note that some newer Macintosh models only use tones to indicate error conditions. See this article for more information....

You may notice your battery life seems decreased while certain applications are running, even when you have enabled the "Automatic graphics switching" option in the Energy Saver preferences....

Learn how to find the serial number of your MacBook Pro....

SMC Firmware Updates refer to the System Management Controller (SMC) firmware update for Intel-based computers. The SMC is a micro-controller on the logic board that controls the power functions for your computer. The SMC controls various functions, including: Power and thermal management, the Sleep LED, and battery. Controlling the fans,...

These trusted root certificates are preinstalled with iOS 5. When IT administrators create Configuration Profiles for iPhone, iPad,  or iPod touch using the iPhone Configuration Utility, these certificates do not need to be included....

Apple has determined that a small number of MacBook Pro (15-inch, Mid 2010) computers may intermittently freeze or stop displaying video on the built-in display or on an external display connected to the MacBook Pro. In this situation, you may also see a restart warning message before the video is lost or the display turns black or gray. Affected...

Learn which fonts are used in iOS 5....

OS X Lion and Mac OS X v10.6 provide third-party software for printers or scanners via Software Update. Simply connect your printer or scanner, and if software is needed and available, the software will be automatically downloaded as part of the creation of the printer/scanner queue....