So I recently purchased on LCD 1602 Shield for my Arduino Uno. When I put it into the selected pins on my Arduino, then give power, it lights up. The potentiometer works fine, as it shows the first row of blocks on the screen. When I plug the cable into my PC, then run an example Liquid Crystal sketch, nothing shows up on the screen. The blocks stay the same, and nothing updates. I've tried looking through multiple forum posts and videos on YouTube, and I can't get it to work. I'm rather missing something, or there is something wrong with the Shield. I'm relatively new to Arduino, as I got my first board three months ago, so my lack of knowledge may have gotten in the way.
Get back to me when you can,