Samsung I8510 stuck on logo

[kishan16]

HI

samsung i8510 stuck on the logo and if i press (4+7 or 4+* or call +3+*) still doesnt work it will say all download for like 2 sec and then go 2 PDA boot loader and if i jst press (7+*) is says modem download but pc doesnt pick up the fone can some one help mi please

P.s i tried (0+8) and still doesn't work

[SDK]

Samsung mobile phone fashion design, precision process quality, satisfying the screen and the bell is other brand mobile phone does not have