I just picked up the CAC-1504 USB-C to HDMI 2.0 Active adaptor for my MacBook Pro, 2018 generation, 13″ with TouchBar, and cannot get any screen I’ve tried (a Dell 4K UHD and Sony 4K UHD TV) to connect @ 4k60hz; all I can get is 4k30hz. I know both screens have HDMI 2.0 ports, and can get 4k60hz with other devices just fine.
I’ve made certain the cable I’m using is an HDMI 2.0 Certified cable, but cannot get it to work, even after resetting my SMC.
My Mac is running Mojave 10.14.0, and the adaptor is revision A3-00, FW: C002 0009 / V7.55 1821.
Is there a firmware update for this dongle, or should I go with the newer CAC-2504 I see listed?
Any advice would be appreciated!