Arduino Appears to Function, Yet no Display Output

[jamesondiskin]

Hey everyone! I've been using the Dubesinhower guide to assemble my Cartridge Reader, and yet, when I get to the step to test the Cartridge Reader (around 22 minutes into the video), and yet when I go to turn on the Cartridge Reader, I get no display output. I believe I've done everything correctly and I don't see any shorts in my soldering anywhere.

If I need to upload pictures or anything, please let me know as I would really like to get this project back in progress!

I have changed the display to use the Serial Monitor instead and get this as a result.

Thank you!

[sanni]

Check those pins for bad solder joints or solder bridges, maybe even from the factory in case of the Mega Pro.

[jamesondiskin]

All the solder joints seem fine (no cracks, pads fully covered, no bridges) and I've tried to exFAT SD cards (one was a microSD card in an adapter). The database files match that of the current version (V12.3), and the SD cards work. I did bridge the jumper on the screen as described by the guide, if that makes a difference. I also tried a second MKS Mini to no avail.