Unless they have organs and dna robots will never be genuine humans.
When will robots be capable of independent (reflexive to the great question, and such. Easy-mode version being able to recognize yourself in a mirror) and adaptive thought, the two determining factors of sentience. Chances are actually pretty slim for it happening soon.
While it may seem as though a robot would be capable of these things, they would only be performing them on a VERY basic and logical level. The fact is simply it is impossible for a robot to realize and contemplate its own existence. A robot simply CANNOT examine reality, as its thoughts are patterns of logic, and existence itself is illogical.
At Bahumat.
Consciousness being downloaded will probably never happen due to the risks involved in initial testing, and the major disparities between individual brains; And that's just the mechanical barrier XD
Also, if this somehow happened I would argue they are no longer human, as they lack all human characteristics outside of thought, which is not really a defining factor of life in general.
Edit: Removed random hyperlink