Left most usb port works with usb 3 devices but not with usb 2 devices

Can someone enlighten me on this issue? I have a MBP mid 12 that seems to have issues with usb 2 devices such iPods, HHDs, etc. The same port works fine with usb 3 devices. I have tried several solutions but not avail such as resetting the SMC, PROM, disconnecting the battery and reinstalling OS X from scratch. Is there anything Im missing? I still don't believe is a hardware issue but something wrong in the firmware...

Can someone enlighten me on this issue? I have a MBP mid 12 that seems to have issues with usb 2 devices such iPods, HHDs, etc. The same port works fine with usb 3 devices. I have tried several solutions but not avail such as resetting the SMC, PROM, disconnecting the battery and reinstalling OS X from scratch. Is there anything Im missing? I still don't believe is a hardware issue but something wrong in the firmware...

Similar Messages

  • My firewire port works with ext hd but not with audio interface

    2010 Imac 21.5 running 10.8.5. My firewire port works with ext hd but not with audio interface. The local authorized Apple tech said that I need a new motherboard, but my firewire ext drive works perfectly. I don't understand. Thanks.

    You must go to the website of the audio interface manufacturer and look for, download and install updated drivers for the audio device you are using.
    This is not, neccessarily, an Apple issue.

  • Have Sony reader 505, ADE doesn't recognize when attached to mac OX 10.6.8. works with reader library but not with ADE

    Have Sony reader 505, ADE doesn't recognize when attached to mac OX 10.6.8. works with reader library but not with ADE

    YEAY!
    I just got the solution (that worked for me, anyway) from a Sony support rep. No PC or VMWare needed.
    OK, you've installed Sony eBook Library v3, and Adobe Digital editions, you've set up your acocunts and authorized your computer on both of them, and you've authorized your Reader with the Sony Library application.
    You go to the public library ebook download page, either through the Sony Library or just through a bookmark.
    You check out a book, and open it in Adobe Digital Editions, which still won't recognize your Reader.
    BUT, in the Sony Library app, you can now click "File, Import.." and go find the pdf you downloaded with the Adobe app.
    On my Mac, it was in ~/Documents/Digital Editions
    Import it, and drag it to your Reader.
    The first time you do this, it will ask you to authorize the Reader with your Adobe ID.
    Worked like a charm.

  • ITunes library stored on an external hard drive which is connected to my airport extreme, I wish to share my iTunes library over my network, I can do this with my laptop, but not with my iPad, can anyone tell me if it is possible

    I have my iTunes library stored on an external hard drive which is connected to my airport extreme, I wish to share my iTunes library over my network, I can do this with my laptop, but not with my iPad, can anyone tell me if it is possible

    You can't connect directly to the external drive, but should be able to use iTunes Home Sharing via the laptop.
    http://support.apple.com/kb/PH1453

  • My Printer (samsung clx-3185fw) says it connects to my network but I can't seem to print wirelessly.  I could with my netgear but not with my airport extreme, any ideas?

    My Printer (samsung clx-3185fw) says it connects to my network but I can't seem to print wirelessly.  I could with my netgear but not with my airport extreme, any ideas?
    I have restarted all units, disconnected and reconnected

    Hi ryanfromstockbridge,
    I apologize, I'm a bit unclear on exactly what you are seeing when you try to add the printer or print to the printer. If you continue to have issues printing to this wireless printer, you may find the information and troubleshooting steps outlined in the following articles helpful:
    OS X Yosemite: Printing troubleshooting
    Troubleshooting printer issues in OS X - Apple Support
    OS X Yosemite: Add or remove a printer
    Sincerely,
    - Brenden

  • Using iCloud my iCloud calendar is syncing with my iPhone but not with the Outlook calendar on my PC (Windows 7)

    Using iCloud, my iCloud calenda is syncing with my iPhone but not with the Outlook calendar on my PC (Windows 7)

    smurfanda wrote:
    I agree. What I see is that it is creating an icloud calendar in Outlook but I want it to sync to Outook itself.
    That is what it does. There is no sync, you have a new calendar.

  • Wireless video link example works with antenna only but not with SMA to SMA cable

    I am trying to run wireless video link example https://decibel.ni.com/content/docs/DOC-22728 . It works fine if I use install antennas on my Tx and Rx USRPs. But it does not work if I use SMA to SMA cable to connect Tx and Rx USRPs. Can somebody guide me what is the reason why it is only workng with antennas but not with SMA to SMA cable. 
    Thanks 
    JK

    I connect the 30 dB attenuator at RF input port of Rx USRP. But it does not work completely.
    Without connecting attenuator i was not able to receive any thing on my Rx VI although it shows waveform. But after connecting attenuator receiver some times receive text messages and some times not. Also it does not work at all for images and for video it works partially but gives some error related to memory full after few mins.
    I want to know why this example works completely without any problem if I use antennas, and why it does not work perfectly if i use sma to sma cable for connecting transmit and receive usrps.
    Please guide
    Thanks 
    JK

  • Windows 8.1 64bit. Webcam works with "Camera" app but not with Skype.

    I've spent a few hours googling and trying out various things - all listed below. I give up - any ideas??? OS: Windows 8.1 64bitMemory: 32GBWebCam: Microsoft VX-7000. As per subject - the webcam works with the "Camera" app but not with Skype for desktop or for Modern UI (or the Microsoft Lifecam software for that matter).  Already attempted: 1) Uninstall webcam drivers - download latest from microsoft (Windows 7) and install in Windows 7 compatibility mode.2) Close (from taskmgr) anything that looks like it might use Webcam. 3) Run Skype for Desktop in Windows 7 and 8 compatibility modes None of the above work. In Skype for Modern UI the webcam doesn't appear in the drop down in Settings - so I can't even select it. In Skype for desktops (version 6.11.32.102) the webcam is found but instead of image I get "Can't start video. Try closing other programs that might be using your webcam". I see from a bit of googling that various people seem to have the same issue (i.e. Webcam works with Camera app but not Skype) - so I'm hopeful someone has found a workaround / fix to this issue and I've just not had the googling skills to find it  Thanks, - Matt Symes

    OK - I appear to have resolved the issue.  I restricted my google terms to [vx-7000 site:microsoft.com "windows 8.1"] Which uncovered this article: http://support.microsoft.com/kb/933311 I noticed there were a couple of Windows 7 x64 specific registry settings that were mentioned so I checked these and they weren't as per the article. In fact - one of the Registry Keys was already used by other software "AI Charger+" which is some ValueAdd software that came with my motherboard. I uninstalled AI Charger+, uninstalled LifeCam driver. Reinstalled LifeCam driver in Windows 7 compatibility mode. Still not working. I returned to the registry and noticed the settings still differed from the above article. I corrected them (which involved not just amending Data but having to add new Values). I then disabled and reenabled the LifeCam from dvcmgmt.msc I was then able to get video from the webcam in the Skype for Desktop preview screen.    

  • Macbook Pro 7,1 (mid 2010?) boot with 6GB mem, but not with 8GB

    Hello,
    I bought a Macbook Pro 13" equipped with 4GB RAM at Apple Store on Oct-2010, and it says it's Macbook Pro 7,1 in profiler.
    I tried to upgrade the RAM from 2GBx2 to 4GBx2, but the MBP freezed in boot sequence with 8GB RAM.
    After some tests, including swap and change the combination of memory modules, I found my MBP can boot with 2+4GB configuration, but not with 4+4GB.
    Does anyone know similar issue on the latest MBP 13"?

    This is a memory speed problem - check here: http://discussions.apple.com/thread.jspa?messageID=13154160#13154160
    When using 2+4 gb, memory speed is choosen, based on the slowest dimm - the 2gb one (1066mHz), when using single/double 4gb - speed is 1333mHz).
    You can see the memory speed in diagnostic mode. I'm trying some stuff, if I succeed, I'll post my way.
    ps. Changing 4gb memory sodimms to 1066mHz will solve your problem. Or if apple fixes the efi to downclock the 1333mhz ones (which btw every pc can do from the bios).

  • USB Ports on HP G60-230US Notebook Not Detecting USB Devices

    I've had an HP G60-230US Notebook PC for about three and a half years now, and all of a sudden tonight my USB ports decided to all stop working.  I first noticed it when I tried to hook up my iPod to sync it and it didn't show up in iTunes.  I unplugged my wireless mouse to see if the other USB port would work with no luck, and when I plugged my wireless mouse back in it wasn't detected either.  I tried restarting my computer twice to see if that would take care of the problem but it didn't. 
    My notebook currently runs Windows Vista.  On a normal day I'll have my external harddrive (WD My Passport Essential 500 GB), my wireless mouse (Microsoft Wireless Mobile 3500) and my Targus Chillmat with 4 USB hubs in the back plugged into my 3 USB ports.  My printer is usually plugged into one of the Chillmat's USB ports.  When I want to sync my iPod I usually unplug the Chillmat because none of the USB hubs on it will detect the iPod.  At the moment my wireless mouse will still work if I leave it plugged into its USB port when I restart my computer, and all the chillmat is doing is cooling my laptop down.
    Any help would be very much appreciated.

    You may have exceeded the available power capacity of the USB ports in your notebook PC too many times. That can result in non functioning (forever)  ports. That is the specific reason that I recommend only using externally powered USB hubs.
    You can check the current carrying capacity of the USB ports and see how much they are using via the device manager.
    Open Device Manager and then right-click a USB root hub. Select properties and then the Power tab.
    This particular system has many ports available.
    ****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
    2015 Microsoft MVP - Windows Experience Consumer

  • TS2771 Charger only works in wall socket but not in usb port???

    When I plug my Ipod touch (4th generation) into my charger and put it in the wall socket it works but when I put it in a USB port it doesnt work (yes the USB 2.0 port) i've tried both my laptop and my PC and it's not charging when only using USB! what do i do??
    And yes the charger USB did work on my PC and laptop until today ._.

    I do not really know, you have a strange problem.
    You can try a new cable. You can also make an appointment at the Genius Bar of an Apple store. Bring the laptop. The apointment is free
      Apple Retail Store - Genius Bar

  • Garagekey USB keyboard works with MacBook Pro, but not with 27"  iMac

    Just got a brandnew 27" iMac. The Garagekey USB keyboard doesn't work. It's recognized in systemProfiler, Audio-Midi Setup, GarageBand and Logic. But no Midi is coming in. When I plug it into my MacBook Pro, it works immediately. I know the Garagekey doesn't work with some 3rd party USB hubs, maybe for lack of enough power, but it works always at the internal USB hubs with the MacBook Pro. Why doesn't it with the 27" iMac? I'm cueless...
    The IMac Systemprofiler says: Current Available (mA) 500, Current Required (mA) 300. So I guess, it can't be a power problem?

    Have the same problem with Logic Pro. Works on my old Mac Mini but not on the new iMac 27" i5. Apple told me that it is a difference between the boards they used on the two computers. They said that even if I got a new mac mini I would run into the same problem. they recommended that I upgrade my mini, or try another piece of hardware to connect the two. Looking for hardware now. Good luck to you.

  • I can see my wi-fi with windows computer, but NOT with any of my apple devices

    I cannot see my wi-fi with any Apple device, but AM able to use my non-Apple comupter

    That is a reversal of note.. normally people are struggling to get their windoze boxes to work.
    Reset the Airport to factory and start over.
    Use all short names, no spaces and pure alphanumeric.
    Leave off the wireless security until you confirm it works... then add wpa2 personal security with a 10-20 character pure alphanumeric password.
    You can also try fixing wireless channels.. test 11, 6, 1 for 2.4ghz in that order.

  • I can capture with iMovie 6, but not with FCP 6.0 ('no data from device')

    I didn't have any problem with FCP 5, but am getting nowhere with FCP 6 using the same settings (I think). FCP seems to see the camcorder, but can't control it and, even if I manually start the camera, reports 'no data from device' when I do a 'Capture Now'. Device control isn't critical, but I'd sure like to find out why it doesn't see the data stream from the camera (Sony HDR-HC7 / FW400). I must be missing a setting some place, but sure can't find it. On the other hand, I have full device control and zero dropout capture with iMovie (exact same hardware configuration). Any ideas?

    Wolfgang Matzl wrote:
    canopus works fine, as well as all other devices.
    i have tons of tapes and tried a few, none worked.
    i tried to capture on both my new imac and my mbpro, no way.
    but now i'm sure there is something wrong with the sony handycam, i tried to import with my old final cut studio, and it's not possible, also. fc pro says: waiting for timecode.
    so i'm confused now. does the sony dcr-trv not send a timecode? maybe, and this will explain the troubles. but on the other hand i imported successfully some footage with exact this device.
    maybe i used the canopus then to correct the timebase, i can't remember how i did it. but this would mean i have to accept loss of quality, since i have to connect the sony with s-vhs with the canopus and convert it.
    right now i'm importing a tape with imovie and will have a look how the result is, but as far as i remember, the audio has to be re-rendered when importing in fcpx…
    My finger is pointing to a Timecode issue.
    Is timecode enabled in the camera?
    Is it continuous on the tape?
    Al

  • 4g iPod works w/iTunes 5, but not with iTunes 2

    I have two G4s, one with OSX.2.8 and iTunes 5, the other has OS9.0.4 and iTunes 2.0.4. My iPod will mount and work with the G4 with iTunes 5, but I haven't been able to get it to mount on the G4 with iTunes 2. I've used the same firewire cable for both machines, and the firewire ports seem to be working on the G4 w/iTunes 2. My iPod software is up to date. I tried resetting the firewire ports, but the iPod still doesn't show up. Is iTunes 2.0.4 too outdated to work with an updated 4G iPod? Any ideas?
    Thanks,
    Gary

    I imagine that's the problem as well. What's the latest version of iTunes that is compatible with OS9? Is iTunes 2.0.4 it? My kids have a bunch of older games that they play on OS9 because the games freeze on OSX's classic environment, so I'm hesitant to move them over to X, but I bought my daughter an iPod mini for Christmas, and I want her to have her own iTunes library.

Maybe you are looking for