On Thursday, April 5, 2012 5:29:48 PM UTC-4, Yan wrote:
 

> [10056.276022] usb 2-7: device descriptor read/64, error -62 
> [10056.560024] usb 2-7: device descriptor read/64, error -62 
> [10056.840019] usb 2-7: new full speed USB device using ohci_hcd and 
> address 96 
>

Could be either an electrical failure or a low level usb software failure, 
on either the device or pc end, or the cable.

If the device is running ordinary software, you might try it on another 
computer or even another USB port on the same computer (especially 
switching between front and rear panel ports).  For an 
marginal-electrical-performance issue putting a hub in between can get you 
a different roll of the dice.

On the software side, IIRC even with USB debugging not enabled in settings 
you would still see something of a USB interface, but that could be 
something to check as well.  To try a different software environment you 
could boot the device to recovery and see if you have USB there. 

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