Ok here you go here are your links:
LaView firmware 190716
Nelly's firmware 190615
These are .dav files, just use Batch Tool to upgrade.
BUT, if you do want to get rid of your RCA Logo, there is a trick we learned, see message #916
Here is the EZVIZ firmware link
So you first load the EZVIZ firmware, then turn off Logo in Batch Tool, I believe is it under Remote Configuration/Image/Video Display
Then load LaView's firmware and the Logo will be gone. It is a bit weird but you will see this option go way in the Batch Tool when you are running LaView's firmware so by loading EZVIZ first you turn it off and LaView does not turn it back on but leaves it off. Hey it works.