I'm using a Samsung J7. A new security update was announced recently at Samsung fixes critical Android flaws with November 2020 updates The article says once it's installed, the phone should have "security patch level" 2020-11-05. "Settings > About phone" says my security patch level is August 1, 2017. But "Settings > System updates > Download updates manually" tells me the phone is up to date (and won't let me upgrade further). How do I make the phone allow me to upgrade it?