(I think this set of steps works in these conditions: Hard-brick, absolutely non-responsive to any button combination. Odin still recognizes the phone when connected through USB port)
1.- Remove both the SIM card and de microSD card.
2.- KEEP YOUR BATTERY REMOVED
3.- Apply the Download-mode button combination (known by you all)
4.- WHILE HOLDING THE COMBINATION, insert the battery, and keep the buttons pressed untill you get the download mode.
5.- Flash your phone with a valid firmware through Odin (Preferebly, have Odin prepared before doing this trick)
I finally flashed it widh Gingerbread 2.3.4 but i don't really like it, because it ended up a little buggy, which i am still trying to get rid of.
Anyway, i hope this helps.
Have a nice day
Fomelogo
---------- Post added at 03:29 PM ---------- Previous post was at 03:25 PM ----------
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This tutorial is very complicated and I have tried to explain it as best as I can, hope it help some of you guys.
PS. If you have any USB driver problems or windows deleted problems with device managers or drivers in general causing errors you must fix these problems first or use a different computer, if the drivers wont install properly you cannot do it on that computer.
EDIT: Gingerbread 2.3.4 firmware, I can confirm this works