Question In the long run, which Macbook would perform consistently? Question Macbook Pro mid-2014 starts flickering then shut down randomly !! Question 2015 13' MacBook Pro Kernel Panics when waking from sleep ■Click the Apple logo, click Restart, and click Restart again in the box to reboot your MacBook Pro (or power it on if it’s turned off) Sometime resetting SMC alone doesn’t help, and you need to reset NVRAM (PRAM in older MacBook) as well to repair non-functional power-operated components. Reset Non-Volatile Random Access Memory (NVRAM) or Parameter Random Access Memory (PRAM) Once done, put the battery back, plug your MacBook Pro to the power supply, press the Power button to boot your computer, and check if the culprit USB port works correctly this time. Resetting the SMC puts all the power management configurations back to defaults, thus killing the issues any of the power-operated components may have. This resets the System Management Controller ( SMC) on your MacBook Pro.

Press and hold down the Power button for 5 seconds, and release the button after that. This ensures that the computer is absolutely out of power, and no damage can be done to any of the external devices or data. The additional step involved here is to remove the battery from your Mac. Unplug your MacBook Pro from the power supply, pull out its battery, and disconnect all the peripheral devices connected to the USB ports. ■ Shut down your MacBook Pro as explained above

Bootcamp usb not working