■Press and hold down the Power button for 5 seconds, and release the button after that. ■Remove the battery from your MacBook Pro as well. ■Shut down your MacBook Pro, disconnect it from the power supply, and remove all the devices connected to its USB ports as explained in the 1st and 2nd steps of the previous section. Reset SMC on MacBook Pro with Removable Battery This step is not required if your MacBook Pro is already turned off. Reset SMC on MacBook Pro without Removable BatteryĬlick the Apple logo from the top-left corner, click Shut Down from the menu, and click Shut Down again in the box that appears next. To help all Mac users, resetting SMC on both types of MacBook Pro is explained below: The older MacBook Pro computers had removable battery and therefore the process of resetting SMC in them was slightly different than it is in newer MacBook Pro. Resetting SMC requires your MacBook Pro to completely cut off from any power supply. Resetting SMC and NVRAM (PRAM) is simple. This resolves many MacBook issues (including malfunctioning USB ports) within a few minutes. Resetting NVRAM restores these settings back to default. NVRAM (or PRAM in old MacBook) stores the system settings such as date, time, screen resolution, etc. ■ Reset Non-Volatile Random Access Memory (NVRAM) or Parameter Random Access Memory (PRAM) Resetting SMC puts the configuration of all such components to their factory defaults, thus making the non-functioning/unresponsive USB ports work properly. SMC is a chip inside your MacBook Pro that manages the components that require power to function. ■ Reset System Management Controller (SMC) There are two ways you can fix all the problematic USB ports in a single go: If the USB ports of your MacBook Pro keep malfunctioning, and you’ve already checked and confirmed that the USB device(s) you’re trying to connect are not the culprit, you may need to do something about the USB ports.

Have to reset smc every few minutes