Hi guys, yesterday I was in the bus and the battery of my phone finished up. No problem I have 2 extra batteris always charged and with me (originals, from ebay).

When I switched the battery the phone got stocked on the flashing "S" screen.

As soon as I got at home I charged and switched the battery to the original one, and my phone stopped to load even the welcome.

I tried all other batteries and the same happens.

I read on internet that this may be a hardware failure...

Finally I tried to connect it to ODin and do what ever do you call it "flash" "reset" "etc"

I actually installed the latest firmware ROM.

Since then I cant do anything with the phone. it can't boot, it can't "Vol UP + Pwr + Home",
only "Vol Dwn + Home + Pwr" that connect it to ODin.

In this moment I'm tring to download an older ROM (april 2011) to see if it goes better.

Can Anyone help me with this, what exactly happened to my phone? Is there a chance to have it back

PS: does this sound to you like some hardware burned up?
ps 2: HEEEEEEEEEEEEEEEEEEEEEEEEEEEEELP!!!!!