Hi I just purchased an Android phone that came with Android Oreo. It's replacing a phone that had Android Pie. Shortly after I set up the new Android Oreo phone It upgraded to Android Pie, but because the old phone was on a newer version of the operating system than the new phone when I did the initial set up none of my system backups were restored to the new phone when I was setting it up.
I'm thinking of doing a recovery mode or a factory reset on the new phone to see if it will bring over my backups and I'm wondering if this phone will revert to Android Oreo or if it will restore to Android Pie which would then restore my backup