Here is a list of resources to help you troubleshoot your Zooz ZEN77 S2 dimmer and navigate the documentation that’s already out there 
We try our best to keep the Zooz Support Portal updated and continue adding helpful articles every day so take a look at the most popular docs first, there’s a good chance your question has already been answered! 
Zooz Switches FAQ: the best place to start 
Full guide to Zooz switches: choose the right model for your project.
OTA Firmware Update Files: read all of the disclaimers carefully before applying an update to your device to avoid accidental bricking 
How to Use Your Zooz Switches with Smart Bulbs
ZEN77 Wiring Diagrams: it’s recommended that a licensed electrician performs any 120 V installation. 
Special diagrams for using 2 or more switches together in virtual multiway installations.
ZEN77 Change Log: where we keep track of all the updates made to the hardware and software of the device.
ZEN77 Specs: make sure you’re using your dimmer with an approved load. Never connect it to a switched receptacle, fan motor, or tube lights.
ZEN77 Advanced Settings: learn how to customize your dimmer, change the ramp rate, dimming speed, or minimum brightness level.
Detailed Support for ZEN77 S2 Dimmer & Your Hub: