Extremely High Data Usage by AndroidOS
I've looked at other recommended posts but to no avail.
My sister has an S2 and I've got an S3,
For some odd reason the AndroidOS is the cause of 99% of Data Usage, with about 1.66GB of data over 2 days!!
I don't know what she has installed but I need to get rid of it, she has no clue either, I've scanned the phone using AVG and it did not show up anything, I uninstalled unpopular apps and games and only left those with over 1,000,000 downloads.
Any clues would be extremely helpful, formatting it is my last resort.
Thanks a lot.
(by the way, by looking at other recommended posts, do not tell me to turn off data when I do not need it...)