Best answer by Ssherjj
I bought a new phone, and play store shows I still have a purchased version, but it will not let me open it without a valid current product key. What do I need to do to use my Webroot to secure my investment?
Do you have your previous product key? Do you have Premier Version? or WebrootSecureAnywhere Complete?
Make sure you are downloading the right version and it sounds like you are right? You can use the Free Webroot Version until you get help.
If you cannot get your paid version to work on your phone I'd suggest you issue a Support Ticket here and they should be able to help you..
Please let us know if you need anymore help. Sometimes our Community Manager can assist.