Lanbon l9-hf. 4 button LCD skinny switch

I bought this lanbon l9-hf because it controls a Fanlight hardwired. I was able to install it physically but I only have 1 load wire and was hoping to use the other “switches” on the LCD to control other iot devices. The l10 version worked well for this. The device claims it is compatible with smart life and even has a setup button on the device settings but it does not work. Support has not responded. I want to flash with esphome. Here are pics. Any help with finding gpio0 to set it up in flash mode would be helpful. Thx

Thx for that. Is there a complete yaml for these? Also I was hoping for the pin out on the 5 pin connector on the relay as well as the pin out for the 12 connector on the s3 board