In my opinion, human consciousness is not located in the brain itself. The brain is just an interface between mind and body.
A couple years ago I was pondering the effects of brain injury, and the debate over consciousness' connection to the brain came up. I do agree the brain is responsible for the consciousness-physical connection... I do not believe consciousness is produced by the brain. I do believe consciousness precedes the physical.
Though it is also quite complicated... The brain does physically store memory, regulate emotion (ie, physical damage can produce depression, anxiety, reduced intelligence, & anger), control motor ability and speech, control personality... And, it is entirely possible to become stuck in a body-prison, or to lose many powers, with physical injury. I recall the author of the book "King, Magician, Lover, Warrior" (very wise book on Jungian psychology) descended into a deeply demented & tragic state at the end of his life. Old age brings inevitable decline... And it is important to (try to) avoid physical injury to the brain if at all possible.
"Memory download" is another question... For example, we often forget our dreams. If dreams occur in a nonphysical domain, then the memories of these usually get overwritten by the physical brain. It seems there is a "nonphysical" memory copy and a "physical brain" memory copy. The former usually gets overwritten by the latter.
There is always something more to discover about it