At first, Android OS would use something like 20 MB for every 200 MB or so, almost like it was a spyware sending reports at 1\10th of total bandwidth. It's puzzling because I have disabled all the disableable apps, uninstalled playstore and deleted backups and linked google accounts. There is no account left to synch. Android OS however continues to spend exactly one-tenth of the total bandwidth used, even after anti virus scans showed up negatives. Any suggestions?