Ok I think i erased all the system data and i cant get it back. I got the froyo info on my sdcard. I though I did everything right but i guess i didnt...The froyo screen shows up where i get the slider for sound and lock...then i unlock and all i get is a black screen...shows top bar with time...3g...battery life...and bars for service...thats it nothing else..can some one plz help.