Headless M8 installed but no content ?

Hi everyone, I wanted to try out the M8 headless to see if the real M8 would suit me but I encountered some issues. Could someone please help me out ?

The first problem I have is that touchdesigner doesn't recognize the teensy 4.1. I can see the COM3 port when I open it, but the M8 screen doesn't appear, I only see the diagonal lines. Could the problem be related to the computer having a bad battery ? Luckily I can use the M8 display website.

The second issue is that I don't have any synthengines or samples on the card. I know I can put my own samples on the card but I was wondering if it was normal that the card is empty ? I'd like to try the synthengines out so If anyone knows how I can find them I would be grateful.

Thanks in advance !!