Hard Brick:
When your phone is hard bricked it will not do anything. You will not be able to enter the clockworkmod or the downloadmode!
Hard bricks often happen by flashing roms of other phones or flashing bad custom roms (at the moment there arenīt any "bad" customs roms for our device)
You can solve SOMETIMES a hard brick with a JTAG. If the jtag could not help you have to send your phone to samsung for a expensive repair.
