Results 1 to 6 of 6
  1. #1


    Member Since
    May 06, 2008
    Location
    Jackson, TN
    Posts
    13
    Specs:
    2.4 Ghz, 2 Gb RAM
    USB Port Stopped Working?
    Hi guys I recently purchased an Intel based MacBook. I purchased a IDE to USB drive converter thing assuming I could use it to transfer my files from my old computer to the laptop. Anyways when I hooked it up last night I kept getting messages about the usb device was drawing too much power, which is weird because it had an external power source. Anyways it was saying the port was being disabled. I never did get it to work and now the USB port next to the shift key seems to be dead. I have tried plugging in my mouse, jumpdrive, etc and none of them even seem to be getting power. The other port works just fine. Is my usb port fried or is it just still disabled? I have restarted and tried the command + option + p + r trick but it's still not working

    Thanks for any help guys

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,782
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Quote Originally Posted by jdcollins View Post
    Hi guys I recently purchased an Intel based MacBook. I purchased a IDE to USB drive converter thing assuming I could use it to transfer my files from my old computer to the laptop. Anyways when I hooked it up last night I kept getting messages about the usb device was drawing too much power, which is weird because it had an external power source. Anyways it was saying the port was being disabled. I never did get it to work and now the USB port next to the shift key seems to be dead. I have tried plugging in my mouse, jumpdrive, etc and none of them even seem to be getting power. The other port works just fine. Is my usb port fried or is it just still disabled? I have restarted and tried the command + option + p + r trick but it's still not working

    Thanks for any help guys
    Some external drives even though self powered, can draw too much current from a USB port. The USB port should have been enabled again if in fact it's OK. Since the machine is new, I suggest you make use of your warranty and take it in to Apple repair and have them look at it.

    Regards.

  3. #3


    Member Since
    May 06, 2008
    Location
    Jackson, TN
    Posts
    13
    Specs:
    2.4 Ghz, 2 Gb RAM
    Eh I was hoping I could fix it myself without having to be macless for however long they take but the more I read, the more I'm thinking I will have to send it in to them. It seems to be a pretty common error though... anyone else have this problem? Did apple just send a new laptop?

  4. #4


    Member Since
    Mar 24, 2008
    Posts
    4
    Someone on another thread (also talking about USB ports on MacBook not working) suggested booting in safe mode (by holding down the shift key when you start), and then restarting again. I tried this when my USB ports (both) stopped working (for mouse, thumbdrive, external) and it worked. I have no idea why it would work (there was a message about 'clearing the boot cache'?), but it did in my case.

  5. #5


    Member Since
    Oct 30, 2009
    Posts
    2
    I solved my problem (one port closer to the shift key stopped working) by shutting down, removing battery and power plug for 10-15 min and when i startted macbook again both usb ports worked again.

  6. #6


    Member Since
    Jan 06, 2010
    Posts
    1
    This procedure worked great. Removing the battery for 15 minutes, replacing it and hold down the shift key when rebooting worked like a charm. thanks!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Keyboard, track pad and USB port stopped working
    By nikomillo in forum Apple Notebooks
    Replies: 3
    Last Post: 06-17-2014, 07:51 PM
  2. Port 8080 stopped working
    By ycombinator in forum Internet, Networking, and Wireless
    Replies: 1
    Last Post: 06-07-2013, 08:06 AM
  3. Headphone port stopped working?
    By derekjackson in forum Other Hardware and Peripherals
    Replies: 10
    Last Post: 08-10-2012, 01:02 PM
  4. USB port stopped working
    By Scrum in forum Other Hardware and Peripherals
    Replies: 1
    Last Post: 12-21-2007, 04:12 AM
  5. firewire port and internet stopped working on IMac G5
    By tony123 in forum Apple Desktops
    Replies: 2
    Last Post: 07-10-2007, 07:27 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •