I was browsing with my Z5P when it fell to the ground after it went off immediately and refuses to on. I plugged it to the wall for about 2hrs, but it still won't come on. Now if I try putting it on, I get no response. If I plugg it to any external power, the indicator comes on, then the screen flashes then they both go off. This cycle continues until the screen then stops coming up, only the indicator comes on and off continually.