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External drive doesn't work

I have a new Toshiba external 1TB drive, 2.5 USB 3.0 connector. It works fine with my iMac but the Macbook Air will not connect to it. kernel.log:


Nov 20 14:06:36 Matthews-MacBook-Air kernel[0]: 0 0 AppleUSBCDC: start - initDevice failed

Nov 20 14:06:36 Matthews-MacBook-Air kernel[0]: USBMSC Identifier (non-unique): 2011100620790 0x480 0xa006 0x1

Nov 20 14:06:41 Matthews-MacBook-Air kernel[0]: USBF: 1016. 59 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 6, EP: 0)

Nov 20 14:06:52 Matthews-MacBook-Air kernel[0]: USBF: 1027. 66 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction past the completion deadline on bus 0xfa, timing out! (Addr: 6, EP: 2)

Nov 20 14:06:58 Matthews-MacBook-Air kernel[0]: USBF: 1033. 68 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)

Nov 20 14:07:04 Matthews-MacBook-Air kernel[0]: USBF: 1039. 71 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)

Nov 20 14:07:05 Matthews-MacBook-Air kernel[0]: USBF: 1039.103 [0xffffff800ba65e00] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfa100000)

Nov 20 14:07:16 Matthews-MacBook-Air kernel[0]: USBF: 1051. 73 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)

Nov 20 14:07:22 Matthews-MacBook-Air kernel[0]: USBF: 1057. 76 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)

Nov 20 14:07:28 Matthews-MacBook-Air kernel[0]: USBF: 1063. 81 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)

Nov 20 14:07:34 Matthews-MacBook-Air kernel[0]: USBF: 1069. 85 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)

Nov 20 14:07:40 Matthews-MacBook-Air kernel[0]: USBF: 1075. 88 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)

Nov 20 14:07:46 Matthews-MacBook-Air kernel[0]: USBF: 1081. 90 AppleUSBEHCI[0xffffff800b8e5000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)

Nov 20 14:07:47 Matthews-MacBook-Air kernel[0]: USBF: 1081.627 [0xffffff800ba65e00] The IOUSBFamily was not able to enumerate a device.


What's up?

MacBook Air

Posted on Nov 20, 2011 11:26 AM

Reply
99 replies

Jan 19, 2012 6:33 PM in response to amcg01

amcg01,

Go to this link:

https://discussions.apple.com/thread/3597369?answerId=17158966022#17158966022


I have a post there with pictures and links for connection cable (micro USB) that seems to work for most people. It works for me and others pretty well. One person didn't have it work, seemed to have a real good understanding of the issues and pointed to this being a power problem, but I didn't see anything more from them regarding the issue. Let us know if it solves your problem.

Feb 20, 2012 7:00 AM in response to MDanihy

Multiple users have reported their MacBook didn't show the drive. The current workaround is to buy a USB 2.0 cable with a micro connector (same as smart phones, Kindle, and Nook accept) and plug it into the micro USB connection port on the Canvio (the left side of the USB 3.0 connection). The drive works, but at USB 2.0 speed. Check the apple support forums - google Toshiba Canvio USB 3.0 connect micro macbook mbp

Feb 20, 2012 9:48 AM in response to agrueneberg

I'm not sure why, but others have said they've had to check several cables. I think some micro USB cables are power only and the data connection lines either aren't connected or are broken. I'd really like to know if any of the cables that didn't work with the drive later did work with other devices for a data transfer (like downloading files from a smart phone).

Feb 29, 2012 10:51 AM in response to Arbynav

SOLUTION:

I just bought a Canvio Basics from Staples and had the same mounting issue with my 2011 MBA. The drive mounts right away on our older Macs. So, I called Toshiba support and they gave me a really simple solution that worked right away: plug the cable into a small USB hub (I happen to have one) then plug the hub into the MBA. IT WORKED!!! A have a cheap Ativa 4-Port USB hub that I bought on clearance for $1, so this is definitely a cheap solution. I asked Toshiba support if they're doing anything to fix this. He said their software engineers are working on it. Apparently, this is also an issue with the newer Macbook Pro. Hopefully, we'll get a firmware upgrade in the near future. Of course, you can always return the product and get another device. We have a Western Digital USB 3.0 drive that works fine on the new MBA, but the Toshiba was sooooooooo cheap, I couldn't resist =) Hope this helps.

Mar 5, 2012 8:14 PM in response to hchan13

FIXED FOR ME:


I have the same problem with a Mac Mini, but don't have a USB hub, so after reading a lot in the forums and after trying some unsuccesful tricks, including using a micro USB cable from an old Nokia phone, I just tried a normal USB extension cord with the provided USB3.0 cable and guess what? It worked! No cule why though.

External drive doesn't work

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