To be honest, I do agree with Rashkae; this can be easily found on the web. To verify, I searched for "samsung nx10 firmware" and it's right there along with instructions.
Bro Rashkae may have adopted a harsher tone, but one do not deny that he is sharing as well. Ever heard of the saying,"give a man a fish and feed him for a day, teach him to fish and feed him for a lifetime"? That's what he's doing.. Be humble and take his advice, you will learn much..