Purchased refurbished Galaxy s4, wants me to install update for "Stagefright" but won't take
I keep getting prompts to download a 251mb patch to fix a vulnerability and has to restart to do it. When I do, it restarts to some system screen where I can navigate through the files and folders. I guess it's some kind of safe mode. Of course I don't know what to do here so I restart it again. After about a day, I'll get the message again about installing the update. I've also restored my phone to original settings and still get the notices. Any suggestions?