login nokia care suite

Hey i need a help from you. login siam umri i also got a nokia lumia 510 and i have also downloaded the 7 8 firmware from navifirm but when im trying to update it through the nokia care suite application, its not getting detected and remaining in offline mode i had also installed win2usb drivers and also copied the firmware in the correct directory in program data okia\packages\products but after all wen