Where are the download images for Android? I'm attempting to update my older Samsung 10.1 to a newer version of Android (7.1) which has been confirmed on a few sites that it's working.
However, the only download links I've found are on sites I'm not so sure I trust to download Android.  I want to get it directly from Google/Android.
Does anyone know how to get the OS APKs?
It seems like for Samsung devices the image download servers are available but there is no user interface to select an image for download. According to XDA blog there is a new Python based command-line tool that allows to search and download Samsung factory images:
https://github.com/nlscc/samloader
As the download information and the firmware images are original downloads from Samsung servers they can be considered trustworthy.
The original article from XDA:
https://www.xda-developers.com/samloader-download-updates-samsung-galaxy/