So I just found out that the sd card path for side loading tpk files is no longer visible using the file manager in Samsung Tab A (2019), neither is the path in main memory. The Path should be Android/data/com.esri.collector/files/basemaps. Android is trying to protect these program files. You would think that the easy solution is for Collector to just make a file dialogue that would let you put the tpks anywhere you wanted that was NOT protected. I found a work around thanks to YouTube University. Go to Google Play and download X-plore and it will let you have access, just be sure to change setting to see hidden files. Come on ESRI...keep up.