Help GT-I9300 white startup screen

All of a sudden when i booted up my galaxy s3 it said that there was no /system and didn't boot up. So I went to recovery and made a factory reset, still nothing. After that I tried to flash stock firmware via odin, but when it was finishing it said It had failed. Now a white screen appears when I turn it on and It can't boot up. I tried flashing it again but it says there's no PIT file. Here are some photos:

oi58.tinypic . com/kec4yf.jpg (separated (dot)com because i'm new)
oi59.tinypic . com/2zp0a5t.jpg

Thank You.