USB Devices

My USB external floppy diskette drive and USB MP3 (not ipod) player no longer mount on my desktop when once they use to. This is also occurring on my iBook.
Any hints please?

If it were a single device on two computers would suspect the device. If it were two devices on the one computer I'd suspect the computer - but two devices on two computers.... hmmm... 
I would restart both machines.
Have you applied an update 10.4.6 to both Macs and since that time they haven't worked? Can you confirm that other USB devices, your iPod Shuffle, keyboard etc still work fine on both Macs?
Remember it's a user defined preference that external drives mount on the desktop. Are the drives there in a Finder window?
mrtotes

Similar Messages

  • HP LaserJet Enterprise 500 color M551dn - Optional USB Device port

    Hi, I'm hoping to buy the optional wireless print server (HP Jetdirect 2700w USB Wireless Print Server J8026A). There is one problem though, the optional USB device port seems to not exist on my printer. I only notice that the USB logo is present where the port is supposed to be. The plastic in the area is squared off as though it is some sort of break away tab and the port is underneath maybe.
    There is no reference to this in the manual anywhere and I am really unsure how to proceed. I don't want to damage anything.
    If someone experienced with this model (preferably an HP Employee) can confirm the availability of the port and tell me how to access it (Is it a break away tab?). Part of the reason why I bought this printer is the optional Wireless N print server.
    Thank You in advance.

    Thank You for your reply. The port you are talking about is the front panel port for walk-up usb printing and firmware upgrades. This port is indeed available on the higher end LaserJet 500 (NON-MFP, printer only edition) as I just used it to upgrade the firmware. The port I am talking about is the one on the left side in the ports section which you use to plug in the optional print server (not the computer I/O port).
    This is shown in the official manual and the spec sheet so I'm 85% sure the port is there, hp can't advertise and mention something that is not available as this would be a big problem and make the 2700w print server incompatible when it clearly states that it is. I just need someone to confirm the availability and clear my confusion (either from HP, or another owner who bought the wireless print server 2700w).

  • USB Device for IPOD not recognized by Windows, whether ipod connected or no

    During the past few days I have received a pop up error message from (I would think) Windows that the USB device is not recognized. I have the USB plug for the ipod connected (as always)but the ipod isn't even connected. It keeps popping up like every few seconds that the usb device is not recognized.
    When I attach the ipod itself, the ipod is recognizing it because it powers up. But, it took 10 times just to get the ipod to recognize through itunes. It updated, then immediately upon completion, windows again starting giving repeated error messages that the usb device wasn't recognized.
    I have downloaded the newest itunes but I had it on my system for 4 days with no problems whatsoever. I don't think that's it. No other system changes.
    I've deleted my temp files and cache. Also did a "disk clean up" and "defrag." It's still doing it.
    Any suggestions?

    I'm having the same problem. Ever since I upgraded to version 7, iTunes & my PC no longer recognise my iPod, and it therefore won't sync.
    It's not the USB port (other devices work in it), I rebooted my iPod and re-installed iTunes, I've tried stopping and starting the iPod Service (but can't see my iPod in My Computer). When I run the Diagnostics it says iPod connection failed. I've even bought a new USB cable but that doesn't work either.
    This is driving me up the wall. Is there a glitch with iTunes 7?
    Can anyone help me out?? Thanks
      Windows XP  

  • Error message (Because a USB device was drawing too much power)

    Hi Everyone,
    Bought recently a new macbook pro 13 inch with Retina display with 120 GB flash drive.
    Connected a non-apple CD drive to my macbook and after that started receiving this message: "Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled."
    initially I was receiving this message after I switch on my macbook but now after every 30 seconds this message pops up although I never connected anything to my macbook through its USB ports.
    Will highly appreciate for your help on how to get rid of this problem.
    Regards
    Homayun

    Try resetting the SMC
    Shut down the computer.
    Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
    On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
    Release all the keys and the power button at the same time.
    Press the power button to turn on the computer. 
    Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.

  • 1GB 1st Generation iPod Nano USB Device Not Recognized on any computer

    I just recently received a free 1st generation 1GB iPod nano from a friend because they couldn't get it to work. I figured I'd take a crack at it and hopefully get a working, free iPod out of the deal...
    It already had music loaded on it (mostly a bunch of garbage), so like anyone else in my position I proceeded to reformat the little sucker and wipe its slate clean.
    Here is what happens when I try to connect the nano to ANY computer:
    Here is how the nano shows up in device manager:
    This was the original problem I was having with my desktop PC which is running Windows XP Home with SP2 and all the latest Windows updates. It is running iTunes 7.5.0.20, w/ latest iPod updater software version 1.2.3.
    Prior to testing the 1st gen. 1GB iPod nano, I had been charging and syncing my 5th generation 60GB iPod classic on my desktop PC using the same exact cable. All of my USB ports are in working, functional condition and order. I even have “Allow the computer to turn off this device to save power” unchecked under USB Root Hub Properties.
    I tried a couple different USB ports and I used another cable, no luck. So I moved on to my Fujitsu laptop running Windows Media Center Edition, all latest Windows updates, same version of iTunes and iPod software (the difference being that I DO NOT sync any iPods to it, nor do I have any music on it). SAME EXACT PROBLEM, same message bubble, same entry in device manager, and same lack of driver availability.
    Thinking maybe it’s just a “PeeCee” thing I dug out my old PowerBook G4 running the ancient Mac OS 10.2. Keep in mind this thing only has a 400 MHz G4 processor, 512MB RAM, 30GB hardrive, and USB 1.1 ports. The iPod nano wouldn’t even give a hint that it existed when I plugged it in.
    I have tried every single little Apple trick available. I’ve done the forced restart while connected and while not connected to the computer. I’ve done forced disk mode while connected and while not. I’ve run iTunes diagnostic tests on connected devices. I’ve messed with USB port settings. I’ve tried two different USB 2.0 iPod cables. I tested my dad’s 8GB 2nd generation iPod nano to see if it linked up with my desktop and my laptop IT DOES. I even tried my 60GB 5th gen iPod classic OVER AGAIN to see if it still worked, IT DOES.
    Also, this 1st gen iPod nano will not charge when hooked to the computer through USB. When I plug it in, between the time it’s plugged in and when the “USB device recognized” bubble pops up the battery icon shows it is charging, but as soon as that bubble pops up it disappears and discontinues pretending to charge.
    On my Fujitsu laptop, I uninstalled everything having to do with Apple. I uninstalled iTunes, Apple Software Update, everything. Restarting after it all of course. Then I installed the old iPod Software Updater from 6-28-2006. I was pretty sure this wouldn’t work because the iPod isn’t even recognized by the computer. In order for the iPod to work in the iPod Software Updater or iTunes it has to first be recognized at the basic Windows level. Which it isn’t…
    I have done research all across the net and the only real answer I found was that the iPod Nano’s internal USB controller is dead. I’m 99% sure it has nothing to do with my laptop, desktop, USB cables, software, or drivers. What do you guys think?

    Nope I have not figured anything out since I posted this. The closest answer I've found is that it's the internal USB controller which has gone bad. If that's the case than there is really nothing more I can do.
    I did find one opening and that was the diagnostic screen. You get to it by holding down the Menu and Center buttons, as soon as the iPod resets hold down the Left and Center buttons, the iPod will beep and then it will go to a diagnostic screen. Maybe somewhere in there you can find the problem I don't know how to use it though.

  • Windows 7 64bit has an MTP USB Device Failed error message when I attach my Ipad1

    I keep getting an MTP USB Device Failed error message when I plug in my USB cable into my Ipad1.  Can someone help?

    This is NOT resolved.  The "Upper..."Key in the registry editor doesn't exist as you can see below in the image I am providing.  This is still an OUTSTANDING issue, can someone please help with resolving this issue, super frustrating.
    This is not just an iPAD issue, I get the same problem with my iPhone as well, both (iPhone and iPad) have the latest iOS 6.1.3 installed as well.

  • Ipod not recognised by Windows, USB device not recognised

    Hi hope someone can help
    I have recently received my ipod back from Applecare who have sent the ipod back in ' working order ' but it will no longer be recognised by my windows. It says USB device not recognised and i cant find, nor will it install drivers that i located on the ipod updater etc.
    I have tried several methods on this forum but none seem to work.
    The letter from mycare says the iPod is formatted for a computer operating Mac OS X. Although i stated wi use Windows. But the leter states this can be changed bu installing the updater, but this wont make a diff as comp still wont regonise the device after i have followed there instructions. Any advice?
    Thanks

    I'm not really up on the complexities of the Windows OS but try this tip I picked up a while back, hopefully it might help.
    "USB Device not Recognized in Windows".
    1. On the Start menu, click Control Panel.
    2. Double-click the System icon.
    3. Click the Hardware tab.
    4. Click Device Manager.
    5. Scroll down the list of devices to the Universal Serial Bus controllers
    6. Click the plus icon next to the Universal Serial Bus controllers.
    7. Double-click one of the indented USB Root Hub entries.
    8. Click the Power Management tab.
    9. Deselect the "Allow the computer to turn off this device to save power" option.
    10. Click the OK button at the bottom of the window.
    11. Restart the computer.

  • IPod Nano: Error Message "The USB device has malfunctioned and Windows does not recognise it"

    Hi everyone, I just received 2 brand new iPod Nanos for my kids for Christmas, thought I'd be smart and sync them both now before wrapping them so I don't have to be messing around with them on the day. One synced without a problem, then using the same cable, same computer, same USB port, the 2nd one came up with "The USB device has malfunctioned and Windows does not recognise it" I've tried restarting my computer, unplugging and reinserting the USB. Is there anthing else I can try before returning it? Thanking you for any help.

    I have solved my problem, I ended up ringing Apple and got an awesome lady who told me to reset it by pressing the sleep button and menu button together for about 10 seconds and once it actually turned on for the first time the computer then recognised it, so it's all good, :-) Thank you lovely lady!

  • Trouble with Toshiba built-in webcam: "unable to enumerate USB device"

    I am running archlinux on a Toshiba Satellite L70-B-12H laptop, and having troubles with the Webcam. *Once in a while*, everything goes well and I get
    # lsusb
    Bus 004 Device 002: ID 8087:8000 Intel Corp.
    Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 003 Device 004: ID 04f2:b448 Chicony Electronics Co., Ltd
    Bus 003 Device 003: ID 8087:07dc Intel Corp.
    Bus 003 Device 002: ID 8087:8008 Intel Corp.
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    # dmesg
    [ 3433.456115] usb 3-1.3: new high-speed USB device number 4 using ehci-pci
    [ 3433.781119] media: Linux media interface: v0.10
    [ 3433.809842] Linux video capture interface: v2.00
    [ 3433.826889] uvcvideo: Found UVC 1.00 device TOSHIBA Web Camera - HD (04f2:b448)
    [ 3433.835893] input: TOSHIBA Web Camera - HD as /devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.3/3-1.3:1.0/input/input15
    [ 3433.835976] usbcore: registered new interface driver uvcvideo
    [ 3433.835977] USB Video Class driver (1.1.1)
    Unfortunately, *most of the time* the camera seems invisible to my system, and I get
    # lsusb
    Bus 004 Device 002: ID 8087:8000 Intel Corp.
    Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 003 Device 003: ID 8087:07dc Intel Corp.
    Bus 003 Device 002: ID 8087:8008 Intel Corp.
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    (note the missing "04f2:b448 Chicony Electronics Co., Ltd" device), and
    # dmesg
    [ 480.104252] usb 3-1.3: new full-speed USB device number 4 using ehci-pci
    [ 480.171097] usb 3-1.3: device descriptor read/64, error -32
    [ 480.341235] usb 3-1.3: device descriptor read/64, error -32
    [ 480.511375] usb 3-1.3: new full-speed USB device number 5 using ehci-pci
    [ 480.578007] usb 3-1.3: device descriptor read/64, error -32
    [ 480.748151] usb 3-1.3: device descriptor read/64, error -32
    [ 480.918282] usb 3-1.3: new full-speed USB device number 6 using ehci-pci
    [ 481.325196] usb 3-1.3: device not accepting address 6, error -32
    [ 481.392091] usb 3-1.3: new full-speed USB device number 7 using ehci-pci
    [ 481.798926] usb 3-1.3: device not accepting address 7, error -32
    [ 481.799166] hub 3-1:1.0: unable to enumerate USB device on port 3
    Searching on the web, most results I found lead to this page, where it is said that the problem is due to badly tuned overcurrent protection, and advocated that unplugging and switching off the computer for a little while gets things back into normal. This does not really work for me; the problem seems to occur more randomly, unfortunately with high probability (my camera is available after less than one boot out of ten).
    I tried to ensure that the ehci-hcd module is loaded at boot with the ignore-oc option (with a file in /etc/module-load.d/), to no avail.
    I also wrote a script which alternatively removes and reloads the ehci-pci driver until my device is found in lsusb. It is sometimes helpful, but usually not. And even when my device is found that way, it can only be used for a while before disappearing again.
    Anyway, such a hack is unacceptable... So, my questions are:
    is it indeed related to overcurrent protection ?
    is there anything else I can try ?
    should I file somewhere an other of the numerous bug reports about "unable to enumerate USB device" already existing ?
    If of any importance, I am running linux 3.15.7, because at the time I installed my system, I couldn't get the hybrid graphic card Intel/AMD working under 3.16.
    Last edited by $nake (2014-10-18 16:29:06)

    uname -a
    Linux libra 3.9.4-1-ARCH #1 SMP PREEMPT Sat May 25 16:14:55 CEST 2013 x86_64 GNU/Linux
    pacman -Qi linux
    Name : linux
    Version : 3.9.4-1
    Description : The linux kernel and modules
    Architecture : x86_64
    URL : http://www.kernel.org/
    Licences : GPL2
    Groups : base
    Provides : kernel26=3.9.4
    Depends On : coreutils linux-firmware kmod mkinitcpio>=0.7
    Optional Deps : crda: to set the correct wireless channels of your country
    Required By : nvidia
    Optional For : None
    Conflicts With : kernel26
    Replaces : kernel26
    Installed Size : 65562.00 KiB
    Packager : Tobias Powalowski <[email protected]>
    Build Date : Sat 25 May 2013 16:28:17 CEST
    Install Date : Sun 02 Jun 2013 15:30:35 CEST
    Install Reason : Explicitly installed
    Install Script : Yes
    Validated By : Signature

  • USB Devices lock-up iMac 2011

    2011 iMac 3.4Ghz i7 SSD+2TB 2GB AMD 16GB Corsair RAM
    I noticed I was experiencing random lock-ups and freezes during the first few weeks of owning the iMac.
    I went down the line of changes I made to the system.
    RAM Upgrade, software installs.
    I went with a bare OS, stock memory, still experiencing lock-ups.
    added everything back, still experiencing lock-ups.
    kept everything unplugged for two weeks, played itunes movies in quicktime on loops (10 total, 5 form the ssd and 5 from the hdd) to see if one or the other would crash the system. Two weeks straight no crash.
    Plugged my iPhone in to sync and update, after a few hours over 8hours) i came back to the system froze & locked. no mouse movement or keyboard input (caps lock key wont turn on and the seconds in the top clock were stuck).
    hard restarted, left it run for a week nothing, plugged in my apple wired keyboard, the next day hard freeze/lock-up.
    this was repeated with each usb port, within a few hours to a few days the system lock-up freeze with any usb devices plugged in.
    it would not do this with FIreWire devices or audio cable or ethernet cable attached just USB.
    is there any way to resolve this without getting the logic board replaced? or is this a firmware/software issue?
    other than that the system is amazingly fast and one of the best.

    This is the error protocol I get in Console:
    8/17/11 6:10:01 AM          com.apple.usbmuxd[38]          HandleUSBMuxDictionary client 0x10030a560-iTunes/com.apple.iTunes using library usbmuxd-211 built on Jan 13 2011 at 04:19:31, running usbmuxd-211 built on Feb  8 2011 at 13:49:43
    8/17/11 6:11:01 AM          com.apple.usbmuxd[38]          HandleUSBMuxDictionary client 0x10030a560-iTunes/com.apple.iTunes using library usbmuxd-211 built on Jan 13 2011 at 04:19:31, running usbmuxd-211 built on Feb  8 2011 at 13:49:43
    8/17/11 6:12:01 AM          com.apple.usbmuxd[38]          HandleUSBMuxDictionary client 0x101d00920-iTunes/com.apple.iTunes using library usbmuxd-211 built on Jan 13 2011 at 04:19:31, running usbmuxd-211 built on Feb  8 2011 at 13:49:43
    8/17/11 6:38:53 AM          DirectoryService[11]          Improper shutdown detected
    8/17/11 6:38:52 AM          com.apple.launchd[1]          *** launchd[1] has started up. ***
    8/17/11 6:38:53 AM          blued[17]          Apple Bluetooth daemon started
    8/17/11 6:38:55 AM          mDNSResponder[18]          mDNSResponder mDNSResponder-258.21 (May 26 2011 14:40:13) starting
    8/17/11 6:38:55 AM          configd[15]          network configuration changed.
    8/17/11 6:38:55 AM          configd[15]          setting hostname to "Anexometas-iMac.local"
    8/17/11 6:38:56 AM          com.apple.kextd[10]          Can't load /System/Library/Extensions/IOSerialFamily.kext/Contents/PlugIns/InternalModemSu pport.kext - no code for running kernel's architecture.
    8/17/11 6:38:56 AM          com.apple.kextd[10]          Failed to load /System/Library/Extensions/IOSerialFamily.kext/Contents/PlugIns/InternalModemSu pport.kext - (libkern/kext) requested architecture/executable not found.
    8/17/11 6:38:56 AM          com.apple.kextd[10]          Load com.apple.driver.InternalModemSupport failed; removing personalities.
    8/17/11 6:38:56 AM          fseventsd[48]          event logs in /Volumes/Macintosh HD 2/.fseventsd out of sync with volume.  destroying old logs. (249678 1 251431)
    8/17/11 6:38:56 AM          fseventsd[48]          log dir: /Volumes/Macintosh HD 2/.fseventsd getting new uuid: 129AD7BD-08D0-46CC-BA19-0949EEA1F589
    8/17/11 6:38:56 AM          fseventsd[48]          event logs in /.fseventsd out of sync with volume.  destroying old logs. (249828 4 251431)
    8/17/11 6:38:56 AM          /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow[44 ]          Login Window Application Started
    8/17/11 6:38:56 AM          bootlog[55]          BOOT_TIME: 1313588332 0
    8/17/11 6:38:57 AM          com.apple.usbmuxd[36]          usbmuxd-211 built on Feb  8 2011 at 13:49:43 on Feb  8 2011 at 13:49:43, running 64 bit
    8/17/11 6:38:57 AM          fseventsd[48]          log dir: /.fseventsd getting new uuid: FCEA12C2-52A7-426E-93BD-6FF4A42D4221
    8/17/11 6:38:58 AM          airportd[66]          failed to snag beacon
    8/17/11 6:38:58 AM          loginwindow[44]          Login Window Started Security Agent
    8/17/11 6:38:59 AM          loginwindow[44]          Login Window - Returned from Security Agent
    8/17/11 6:38:59 AM          loginwindow[44]          USER_PROCESS: 44 console
    8/17/11 6:38:59 AM          com.apple.launchd.peruser.502[98]          (com.apple.ReportCrash) Falling back to default Mach exception handler. Could not find: com.apple.ReportCrash.Self
    8/17/11 6:39:01 AM          configd[15]          network configuration changed.
    8/17/11 6:39:01 AM          UserEventAgent[118]          **** ERROR: SCNetworkSignatureCopyActiveIdentifiers returned nil
    8/17/11 6:39:01 AM          com.apple.launchd.peruser.502[98]          (com.apple.Kerberos.renew.plist[124]) Exited with exit code: 1
    8/17/11 6:39:01 AM          com.apple.usbmuxd[36]          HandleUSBMuxDictionary client 0x101c043b0-iTunesHelper/com.apple.iTunesHelper using library usbmuxd-211 built on Jan 13 2011 at 04:19:31, running usbmuxd-211 built on Feb  8 2011 at 13:49:43
    8/17/11 6:42:52 AM          com.apple.usbmuxd[36]          HandleUSBMuxDictionary client 0x101c045e0-iTunes/com.apple.iTunes using library usbmuxd-211 built on Jan 13 2011 at 04:19:31, running usbmuxd-211 built on Feb  8 2011 at 13:49:43
    8/17/11 6:42:52 AM          WindowServer[73]          kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
    8/17/11 6:42:52 AM          com.apple.WindowServer[73]          Wed Aug 17 06:42:52 Anexometas-iMac.local WindowServer[73] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
    8/17/11 6:49:00 AM          /System/Library/CoreServices/CCacheServer.app/Contents/MacOS/CCacheServer[ 130]          No valid tickets, timing out
    8/17/11 6:55:09 AM          [0x0-0x19019].com.apple.iTunes[173]          Successfully connected to the Intel plugin
    8/17/11 6:55:09 AM          [0x0-0x19019].com.apple.iTunes[173]          Version from driver for Certificates 1
    8/17/11 6:55:12 AM          com.apple.launchd.peruser.502[98]          (com.apple.AirPortBaseStationAgent[126]) Exited: Killed
    8/17/11 6:55:12 AM          com.apple.launchd.peruser.502[98]          ([0x0-0xb00b].com.apple.iChatAgent[134]) Exited: Killed
    8/17/11 6:55:12 AM          loginwindow[44]          DEAD_PROCESS: 44 console
    8/17/11 6:55:12 AM          shutdown[208]          halt by maxstanley:
    8/17/11 6:55:12 AM          shutdown[208]          SHUTDOWN_TIME: 1313589312 459712
    8/17/11 6:55:12 AM          mDNSResponder[18]          mDNSResponder mDNSResponder-258.21 (May 26 2011 14:40:13) stopping
    8/17/11 6:55:12 AM          DirectoryService[11]          BUG in libdispatch: 10K549 - 1960 - 0x10004004
    8/17/11 6:55:12 AM          imagent[127]          Quit - notifying about shutdown
    8/17/11 6:55:12 AM          WindowServer[73]          hidd died. Reestablishing connection.
    8/17/11 6:55:12 AM          imagent[127]          Quit - shutting down daemon
    8/17/11 6:55:12 AM          imagent[127]          [Warning] imagent shutting down
    8/17/11 6:55:12 AM          imagent[127]          Unable to create APS daemon connection: (ipc/mig) server died
    8/17/11 6:55:12 AM          imagent[127]          Unable to set enabled topics: (ipc/send) invalid destination port
    8/17/11 6:55:12 AM          /Applications/FaceTime.app/Contents/PrivateFrameworks/IMCore.framework/ima gent.app/Contents/MacOS/imagent[127]          BUG in libdispatch: 10K549 - 1960 - 0x10004004
    8/17/11 6:56:38 AM          com.apple.launchd[1]          *** launchd[1] has started up. ***
    8/17/11 6:56:39 AM          blued[17]          Apple Bluetooth daemon started
    8/17/11 6:56:39 AM          mDNSResponder[18]          mDNSResponder mDNSResponder-258.21 (May 26 2011 14:40:13) starting
    8/17/11 6:56:39 AM          configd[14]          network configuration changed.

  • I am trying to upload photos from my digital camera. Every time I try to plug it into my USB, the following error message comes up: "Because a usb device was drawing too much power from your computer, one or more of your USB devices have been disabled."

    I am trying to upload photos from my digital camera. Every time I try to plug it into my USB, the following error message comes up: "Because a usb device was drawing too much power from your computer, one or more of your USB devices have been disabled."
    I don't have anything else plugged into my MBP, so I am confused as to what's going on.  This problem has never happened before.  MBP is less than a year old - about 9 months old.  HELP

    Get a powered USB hub.
    https://discussions.apple.com/community/notebooks/macbook_pro?view=documents

  • PTCL EVO USB Device Installation and Configuration (EVDO CARD)

    *PTCL EVO Installation on MAC Book PRO , Mac Book Air EVO*
    Problem:
    USB not getting detected on MAC book pro and Mac book Air.
    Resolution:
    *DO not Insert the EVO CARD until you perform the below:*
    *Getting the driver:*
    *Option 1 :*
    http://ptcl.com.pk/contentb.php?NID=327#drivers
    Select the device you have and download MAC driver from the download section on the page.
    *Driver Option 2:*
    ON windows os insert the EVO device detect the USB disk with drivers one of the driver is for MAC (dmg file) copy it on a simple Flash disk.
    *Installation on MAC:*
    Double click the downloaded driver (Option 1)
    run the setup.
    or
    on your MAC Insert the Flash Disc on which you copied the driver (Option 2) it will detect a media storage and then run the driver from there. Once you have the driver installed you will see an EVDO Icon in the menu.
    *NOW insert the EVDO USB in MAC it will be detected as a modem / network device.*
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