I had the same trouble trying to upgrade from 2.7.5 to 3.0. I finally gave up and did a complete un-install of the 3.0. To re-install the 2.7.5 software and firmware, I had to a.) put the TI on the RAM A-0 patch, b.) force it into Update Mode (unplug, press Exit key, plug-in), c.) reboot the PC, d.) install 2.7.5. It "finished" successfully and I am "totally integrated" once more. So for now, I am just sticking with 2.7.5.
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