Please help can someone please help me to put firmwares into my topfield 500 ci,

because i can't seem to find a usb slot in my topfield reciever, so i was

wondering is there another way involving the cas3 or the diablo cam, to actuallly

put the firmwares into the reciever, as like i said there is no usb device on the

reciever to actually hook up to the pc to put the firmwaers in, many thanks to

anyone who can help me.