If the probe didn't work on the V1.1.5 and it's not working on our board it's likely a defective probe. Make sure you are buying a genuine BL Touch and not a knock-off as well. I would get a new probe and wiring harness to see if that solves the issue. Our firmware for the EZBoard 100% supports all the BL Touch probes and we have many people using them with our board.
The support for the EZBoard (the default level) is through the forums here. Myself and the other guys are active on here. The goal of doing it through the forums is so we can build up a repository of information for others instead of keeping all the information stuck in our ticket system where only us and the customer can access it.