this is what happened,,, i was updating one of my games thru installer, and all of a sudden, after it was done, the screen starts like flicking as in it kept on flashing from black to gray for a good minute, and i was like "ohhh great...." then it goes dark black.. and i was like well maybe if i connect it to my ihome? i did, nothing happened... then to my computer,, NOTHING! not even itunes popped up... i cant turn it on,,, nothing happens i pressed the sleep/home button,, and nothing appears...so now im scared.. my wifi was on, and right now, my router says its still connected?? i have warrenty on it thru best buy, but since its jailbroken, idk what they'll do? is it fixable? can i do something? some one pleasee helppp!!!