I have the LLM Module Kit with LLM Mate on a M5Core

1. How I can connect to the embedded linux with macOS ?
   If I connect the network cable no network led on (defect module?)

2. For what is the small cable stripe in the box ? (I can put in in the LLM Module), but NOT in the LLM Mate (no connector).

I need access to the linux so I can add/load/compile other LLM Modules.

BTW:
screen /dev/tty.myusb 115200
show only a stuck blank screen. I cannot press any key on my keyboard...