I have a Samsung S20 Ultra unlocked. I have had problems with multiple phones and computers (Sammsung & Apple). I have done multiple factory resets and it does not help! Issues come right back, so I assume from what I have seen that something has rooted my phone. Settings change, passwords constantly change on me, there was an LG Nexus phone that showed up on my gmail, and I have been locked out of Facebook twice now. First because it said I was posting political advertisements (not me) then because my email was supposedly banned. I later found out the email was banned because it was blacklisted - AT&T said they removed it from the blacklist. I don't know what to do! No one seems to see anything when testing the phone. I have seen apps that I did not download, and I believe they are for older Phones not the S20. There was an app was calls and messaging on other devices that I was unable to shut off. I think this app was stopping me from receiving calls. I have so many problems its never ending! Also, are there supposed to be so many short cuts that can't be removed in accessibility ? I have been consumed by this! Please HELP me!!!!!! I am not an experienced computer person so please use newbie language if you have any ideas. Thank you!