Since (except for Device Manager) nothing on the PC recognizes a connection with the Nexus 10, I'm pretty much out of options. I can do a complete "wipe data/factory reset" I suppose, but would like something not so drastic (given no backup). When I look at CWM's display of mounted and unmounted storage, sdcard is unmounted and won't mount. I've even done a full wipe and factory reset, with the same results.
A brand-new install of the Samsung USB Drivers 126.96.36.199 through Skip's app now results in an error message when I reattach the tablet saying the driver install failed. I still show the device in Device Manager.
I have Skip's Universal Android Toolkit v1.0.2 and it seems to recognize that a Nexus 10 is connected, but can't do anything to it (it expects you are originally booted to Android, not recovery.
This is my first Samsung device, so I'm totally unfamiliar using Odin and haven't figured out how to use it to correct the problem.
It seems that, if I can sideload a copy of CM 11, I should be okay, but all roads look closed.
I'm locked in a loop.