First, it's awfully sad that I can't simply change my email address as the owner. I understand the address has to be tied to an active account in order to plug it in to the Deco app, but still: It shouldn't be hoops and fails to do something so simple.

Second, so I followed this help doc and created a new valid account with a different email so I could change the owner on my Deco app: https://www.tp-link.com/us/support/faq/2957/

It works fine until it diverges at step 5. After successfully receiving my email and launching the app, there's no way to simply "BIND" after the LET'S BEGIN stage to the new user account. The app instead forces me to select my Deco model and start a new network setup from scratch. What's worse is I can't go back to the old account now. It's dead and trying to do so also forces me to start from scratch with creating a new network.

I would say what firmware I'm using but I can't because I'm locked out until I reset everything and configure from scratch (which I can't do in the middle of my workday). Deco iOS App (v2.14.24) and Deco X20 firmware are the latest as of this writing: 20221013.

I am using slightly older hardware (X20) so that's always a problem with computer companies and updates. Still, this one simple email change task should never be a huge hassle ending with a lockout!