I disagree and I don't know that much but I can tell you to look in your file system and see if they all start with "com." And if so I can only tell you my experience and continuing problem I have yet to solve. Missing media,altered applications,being locked out of my accounts,even devices them selves. factory reset wouldn't be a bad idea if u know the original Google account used or are prepared to be able to bypass a Google device lock but as far as move on I do not agree