Systems, apparatuses and methods provide for technology that identifies a redundant portion of a packaged on-die memory and detects, during a field test of the packaged on-die memory, one or more failed cells in the packaged on-die memory. Additionally, the technology identifies whether the redundant portion includes one or more remaining memory cells, and in response to an identification that the redundant portion includes the one or more remaining memory cells, the one or more remaining memory cells in the redundant portion are substituted for the one or more failed memory cells.