So I just received my LCD screen, made all of the solder connections, nothing (to my knowledge) has been "crossed" while soldering the boards. However, I can only see a very faint image on the screen, and it is 8 "boxes" showing. I adjusted the contrast adjuster, and it is still showing very lightly. there is no active backlight, and when i attempt to run i2cdetect, it comes back showing the screen on 20x (which i think is a good thing). I attempt to run the test script from the install guide, and get an error back stating that it cannot connect/see the i2c device.
Any help would be greatly appreciated. Thanks!