Obtaining fastboot on the Lenovo A3000/S6000H

Hi there,

I'm trying to connect to my Lenovo S6000H via fastboot, but instead of getting a response from an OEM command, like dmesg, I get:

Code:

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$ fastboot oem dmesg
...

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just an elipsis? Has anyone else got fastboot working on their Lenovo tablet? (holding down power + vol+ and selecting '[FASTBOOT mode]' will allow you to enter fastboot)

EDIT: Yes, I have the correct udev rules – using 'fastboot flash' works, just not fastboot oem.