Hy there Guys.
I have the following issue.
I have a VTO2000A-C-2 vith a VTO2000A-K, and it's Hooked to a VTH1510CH.
I can upgrade the VTH's firmware to 4.3 but the VTO's firmware wont go above 4.0. I tried everything.
The main issue is, that the keypad wont work.
I added it in the admin...