I previously posted on how to install a platform and app update package but got a question: How do you do this if you do not have the tile? I'll briefly walkthrough how to take the long road to installing a PU. Also, unlike my other post, this will be just the PU rather than the PU and app update all in one. Also, I have seen some minor difference between deployments types on app/PU level which may make this look slightly different. I was experiencing this issue with a cloud hosted environment.