USB ports not working

riverside1 · Jul 14, 2016

Hi, so i have a MC700LL/A running Yosemite 10.10.5. When i plug in anything into the USB ports it does not show that anything is plugged in, however when i plug my phone in it receives power so i know the USB ports work. I have tried the SMC reset but as of right now my USB ports are non-functioning besides being able to charge my phone. Please help!

Randy B. Singer · Jul 15, 2016

riverside1 said:
Hi, so i have a MC700LL/A running Yosemite 10.10.5. When i plug in anything into the USB ports it does not show that anything is plugged in, however when i plug my phone in it receives power so i know the USB ports work. I have tried the SMC reset but as of right now my USB ports are non-functioning besides being able to charge my phone. Please help!

The next thing that I would try would be resetting the PRAM/NVRAM by restarting your Mac and then immediately holding down the Command+Option+P+R keys
https://support.apple.com/en-us/HT204063

If you get no joy from doing that, I'd run Apple Diagnostics:

Apple Diagnostics
https://support.apple.com/en-us/HT202731

riverside1 · Jul 21, 2016

No the PRAM does not help

ferrarr · Jul 21, 2016

What exactly are you plugging in to the USB ports? An external drive? A usb mouse or keyboard? The drives may not show unless you have selected that option in Finder > Preferences, did you select the option? Open Image Capture before you plug your iPhone in, does IC recognize the iPhone?

Slydude · Jul 21, 2016

Also, keep in mind that no matter how the Finder preferences are set an optical drive will not show on the desktop unless a disc has been inserted .

riverside1 · Aug 10, 2016

I've tried plugging in an android phone and a USB audio interface. The phone does not show up on image capture but it still charges. I've plugged the phone into another Mac and it shows up so it's not the phone that has the problem

harryb2448 · Aug 10, 2016

Go into Finder >Preferences > General and ensure the radio buttons are selected.

pm-r · Aug 10, 2016

riverside1 said:
I've tried plugging in an android phone and a USB audio interface. The phone does not show up on image capture but it still charges. I've plugged the phone into another Mac and it shows up so it's not the phone that has the problem

It sounds like some of the data pins are not making proper contact but the power/charging contacts are.

Carefully look for misaligned/dirty/missing pins.

Randy B. Singer · Aug 10, 2016

riverside1 said:
I've tried plugging in an android phone and a USB audio interface. The phone does not show up on image capture but it still charges. I've plugged the phone into another Mac and it shows up so it's not the phone that has the problem

Did you try running Apple Diagnostics, as I suggested?

See:

Mac USB Ports Stopped Working? It’s Likely Easy to Fix
http://osxdaily.com/2015/08/09/mac-usb-ports-not-working-fix/

How to Reset USB Ports on Mac Laptops
http://smallbusiness.chron.com/reset-usb-ports-mac-laptops-51619.html

If the above procedures don't help, there is probably nothing that you can do on your own, and you will have to return your Mac to Apple for a hardware repair. See:
https://www.youtube.com/watch?v=YvV0hCN4vP8

USB ports not working

riverside1

Randy B. Singer

riverside1

ferrarr

Slydude

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riverside1

harryb2448

pm-r

Randy B. Singer

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