Hello, I have a CSL and as I was putting it together everything was going well, up until i put the sd card. I flashed the image on the sd card with balena, and i used notepad to change the mode to test. I can't get any type of picture on the screen. I've tried multiple sd cards, ones that have worked fine in other rpi0s the backlight for the lcd is on, and all the test leds are lit. i'm pretty confident that it's not the pi because i had tested it before with vanilla retropie and it showed a picture. what could be wrong?