I have an android phone (my uncle's) that is full of viruses that display adds and reinstall themselves I'm guessing there is no important/needed data on the phone
I tried factory reset, after used Dr Web to find viruses, and to root the phone (Kingo ROOT) in order to be able to remove some of them, 2 files identified by drweb couldn't be removed even though the phone was rooted because they were system files (priv-app/baseservice.apk and another one), I renamed them instead.
all this ^ didn't helped completely, they appear again somehow, so would like to format and clean install a new OS
is there a easy way to do that ? my guess is I need some program on my pc (windows7) for this and connect the phone using usb and run some commands
the device is a fake galaxy S6, Android 5.0.2 kernel version 3.10.61