2 Replies Latest reply: Apr 10, 2010 7:00 PM by Richie9999
Richie9999 Level 1 Level 1 (0 points)
Hey, I recently encountered a problem with my USB ports on my MacBook pro. Last night, I plugged in my iPod touch in order to sync and charge it, a couple minutes later I received a message like this one: http://img65.imageshack.us/img65/9035/screenshot20091006at837.png

Now, following this message, iTunes gave me an error message saying that my iPod touch couldn't be synced because it couldn't be found. After getting these messages I figured that I would just try resetting the PRAM and/or the SMC to see if that would fix it as it was one of the fixes suggested on various sites. I reset both, but to no avail as the problem persisted. So finally I tried the last solution suggested which was reinstalling iTunes. I did this and my iPod Touch and my MacBook pro got along just fine up until 15 minutes ago when I got the same message.

I'm at a loss, I can just reinstall iTunes, but that's a hassle, and frankly I would love it if there was another way to fix this. Oh yeah, even though the error message says the USB devices are disabled, I can still charge my iPod from my laptop no problem, and I can use other devices no problem, I just can't sync my iPod.

Any ideas as to how to fix this?

Specs:
Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro5,5
Processor Name: Intel Core 2 Duo
Processor Speed: 2.26 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP55.00AC.B03
SMC Version (system): 1.47f2

MacBook pro, Mac OS X (10.6.3)
  • 1. Re: USB drawing too much power
    Rod Hagen Level 7 Level 7 (31,985 points)
    What happens if you use the other USB port, and/or disconnect all other USB devices, Richie? Or have you already tried this?

    Bear in mind, too, that one of the High Speed USB buses also runs the iSight Camera and the other runs the SD card slot, so if you are using either of these at the time, see what happens when you don't.

    You might also want to try a different USB to iPod cable if you have one.

    Bluetooth issues also occasionally relate to USB problems.

    Cheers

    Rod
  • 2. Re: USB drawing too much power
    Richie9999 Level 1 Level 1 (0 points)
    I've tried using the other port to the same results, and the only thing that the ports seem to have problems with are the iPod cables. I've tried all three of the ones I own, and I've gotten the same results. Also, the USB ports only seem to act up with the iPod cables, which work fine with other computers. I've used my wireless mouse without any problems, I've plugged in my thumb drives/flash drives whichever you call them, and I've tried my printer cord.

    Also, I never use my iSight camera nor do I use the SD card slot. I'll try turning off the bluetooth though.