Samsung galaxy s5670 Unable to flash custom ROMS

[Unregistered]

Hey guys,
I am using Samsung Galaxy s5670 and as I was not satisfied with the ROM in it so I tried to install a new ROM in it.
I tried to put a new ROM and the problem begins here now when I tried to flash that ROM. But I am still unable to flash the ROM. I tried other ROMs and tried every thing on the internet. I am flashing the ROM with custom recovery wiping data and cache. But the phone is not booting. The flashing of the ROM goes well but does not booting and not passing boot screen.
Please anyone help me.