I have a message "Install update to keep device secure". What do I do?

I have a message "Install update to keep device secure". What do I do?

Periodically, Android will update the Operating System on your BigPurplePhone. This is something that Android does and unfortunately, we cannot control it.

You need to accept the installation and follow these instructions -

○      Tap on the words "Download & install now"

○      Select "Use Mobile" ^

○      When prompted select "Restart Now"

We have prepared a PDF showing what this looks like here.

 ^ If WiFi is available, we recommended that is used for downloads to improve speed.