I have tried every recommendation in this thread. I have the ICS bootloader, just flashed the new .30 firmware, never flashed a JB ROM, when trying to go to fastboot mode, I only get "Starting fastboot USB download protocol" and get stuck there. When I input the commands you just said, I get "<waiting for device>" and stays there (for 12 hours once). I have tried 4 different sets of drivers, factory reset on my device, etc. The only thing I haven't tried is the Terminal in the tablet.
---------- Post added at 10:48 PM ---------- Previous post was at 10:48 PM ----------
At this point, I think I will just wait.
gaxiolafm,
PM me and I can walk you through the exact steps on how i got this to work. It took me a few tries and i was on TWRP with Zeus 4.0. Rom