How I repair my i9000 ?

Hello , all
My phone is not recognize by any computers
It charges normally with usb pc or charger
But no indication on phone
I access to download & recovery modes
Moreover , i miss graphic unlock schema &
Forget password email
I m blocked on screen with login email & password
In recovery mode < 3° >
l wipe cache partition but dont wipe all datas
Becoz I m afraid to lost all thinks & get hardbrick
Thanks for your precious help