962      iPhone_iPad_Mac_apple

usb port deactivated

hi

one of my macbook pro's usb port deactivated suddenlyand i dont know what should i do!!!!!!!

i really worried about this port

Typically Port definition is reset with each reboot of your machine. unplug all USB peripherals Shut down and then start back up.

if no success

Try resetting NVRAM/PRAM https://support.apple.com/kb/ht1379

if no success  Try resetting the  SMC https://support.apple.com/kb/ht3964

Please report back your success or failure.

thanks for your help

but it didnt work

I suspect you have a hardware problem.

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test  and they will be able to tell you more, From there you can make an informed decision.

Genius reservation https://www.apple.com/retail/geniusbar/

on-line https://getsupport.apple.com/GetproductgroupList.action

check warranty https://selfsolve.apple.com/agreementWarrantyDynamic.do

最後更新：2017-09-30 08:01:48

  上一篇： ProAudio

  下一篇： Why does itunes 12.6 duplicate playlists?