Reterminal won't start after initial setup

I just unboxed my reTerminal. It went through the usual Raspberry Pi setup and did a software shutdown. Now it does not seem to restart. I get a green power and system light. I can push the grey button on the top left. But nothing appears on the screen or external monitor. What am I doing wrong?

I found the thread that explains what to do.

Worked great and was a fun process. Getting the back off made me nervous because it has many contact points, but it really does just pull off. I was impressed by the build quality of what I saw inside the reTerminal. My unit is working now. I can’t wait to get started building around this piece. Thanks for the good support (and yes, I acknowledge I didn’t follow the original instructions, and thank you for knowing so many of us wouldn’t and being prepared when we didn’t :wink: