This happened to me last night and i had never been bricked before. This was a serious problem but the solution was close to what you tried.On the bricked note, last night I was flashing back to JF6 with Odin one click. About a quarter way into it windows decided that my samsung usb drivers should quit and disable my my flash. The phone screen went a real dim red and that was that. Waited for 10 min+ but Odin saw no device nor Windows, Win 7Pro 64 bit, for that matter. Pulled the battery and nothing, no battery charging graphic, no home button lights, vibration, NOTHING! So I fiddled with it, rebooted the comp to no avail.
My sim and sd were already removed before flashing so I resurrected my Tilt just in case and went to the forums.
I found a post somewhere (can't remember where, sorry) about just barely making battery contact with the contacts on the phone while holding vol +- and power down with the USB plugged in and Odin running to get some sign of life.
I did this for about 5 min after letting the phone sit for 30 secs or so with no battery or usb card and got 6 lines of red text to come up then disappear.
Kept doing the "trick" and after about 10 mins the phone suddenly came on in download mode! Yes!, flashed to stock then put Perception 8 non oc/uv on with no problems.
What I was told to do worked each time i needed to bring it back into download mode cause of multiple stalled re-flashes.
the method should make it to the top of this thread too as I have been successful every time.
remove sim, memory card and battery. Hold Power button to drain any residual power. Start odin on your computer. Press the volume rocker ONLY. Plug USB into computer. Put Battery into the phone. DONE!
I was hard bricked with black screen and 6 red lines of text.
The above methood worked EVERY time (i couldnt get a complete flash on my desktop..so i tried on my notebook and flash went 1 time smooth as silk.)
Cheers and thanks to all the helping hands in this community XDA rocks!