App issues on android!

Cannot delete primary device (s911u [galaxy s23] from two factor account.

Trying to set up my s918u (s23 ultra) as primary but can't find anywhere to set up my phone as a primary device.

Tried logging back into the app after uninstallijg app several times and the app blocks my phone.

Says "this device is not trusted".

So have to use the one time login instead to get into the app.

Any suggestions?

Using Orbi 750