Carrying your MacBook Pro If you carry your MacBook Pro in a bag or briefcase, make sure that there are no loose items (such as paper clips or coins) that could accidentally get inside the computer through vent openings or the optical drive slot or get stuck inside a port. Also, keep magnetically sensitive items away from the MagSafe power port.
Using connectors and ports Never force a connector into a port. When connecting
a device, make sure the port is free of debris, that the connector matches the port, and that you have positioned the connector correctly in relation to the port.
Using the optical drive The SuperDrive in your MacBook Pro supports standard 12 cm (4.7 inch) discs. Irregularly shaped discs or discs smaller than 12 cm (4.7 inches) are not supported.
Handling glass parts Your MacBook Pro contains glass components, including the display and trackpad. If they are damaged, don’t use your MacBook Pro until it has been repaired by an Apple Authorized Service Provider.